WorldWideScience

Sample records for ar interior provocada

  1. Poluição do ar interior provocada pelo fumo do cigarro em locais públicos de Portugal Indoor air pollution caused by cigarette smoke in public places in Portugal

    Directory of Open Access Journals (Sweden)

    José Precioso

    2007-10-01

    Full Text Available OBJETIVO: Poucos têm sido os estudos para conhecer o grau de poluição pelo fumo do tabaco a que estão sujeitas as pessoas em vários lugares públicos e privados. O objectivo do estudo foi quantificar o nível de poluição do ar provocada pelo fumo do cigarro em locais de trabalho e de lazer. MÉTODOS: O estudo foi realizado no concelho de Braga, Portugal, em 2005. A medição dos teores de nicotina no ar interior foi realizada com monitores passivos contendo um filtro de 37 mm de diâmetro tratado com bissulfato sódico no seu interior. Os monitores foram colocados em lugares públicos, de trabalho e de lazer, pré-definidos. Para cada um dos locais, calculou-se a mediana da nicotina. RESULTADOS: A presença de nicotina foi detectada em 85% das amostras. Foram encontrados valores elevados de contaminação do ar nas discotecas, com mediana de 82,26 µg/m³, variando entre os 5,79 e os 106,31 µg/m³.Os locais de trabalho da administração pública e da universidade apresentaram os valores mais baixos de nicotina. CONCLUSÕES: Os dados confirmam a necessidade de reforçar a implemen-tação e sobretudo, o cumprimento de políticas sem fumo nos locais de trabalho e de lazer, em benefício da saúde dos trabalhadores e como medida reforçadora de um ambiente que facilite aos fumadores o abandono do fumo do tabaco.OBJECTIVE: There have been few studies investigating the level of cigarette smoke pollution to which people in several public and private places are exposed. The purpose of this study was to quantify the level of air pollution produced by cigarette smoking in workplaces and leisure settings. METHODS: The study was carried out in Braga, Portugal, in 2005. Nicotine content in indoor air was measured using passive monitors containing a 37-mm diameter filter inside treated with sodium bisulphate. The monitors were installed in predefined public workplaces and leisure settings. Median nicotine content was estimated for each place studied

  2. AVALIAÇÃO DA QUALIDADE DO AR INTERIOR DO HOSPITAL UNIVERSITÁRIO PEDRO ERNESTO

    Directory of Open Access Journals (Sweden)

    Eduardo Delfino Sodré

    2014-12-01

    Full Text Available DOI: 10.12957/sustinere.2014.14126A “Síndrome do Edifício Doente” é um termo utilizado para definir a má qualidade do ar de ambientes interiores e tem sido de preocupação crescente da comunidade científica. A avaliação da qualidade do ar, nos locais amostrados no HUPE, fundamentada na resolução n° 9 de 2003 da Agência Nacional de Vigilância Sanitária, teve como objetivos conhecer e informar para que a Comissão de Controle de Infecção Hospitalar avalie a interação deste fator com as infecções nosocomiais e decida pela necessidade, ou não, de medidas corretivas e contribuir para o conhecimento e desenvolvimento de técnicas e controle da poluição “Indoor”. As amostras foram coletadas com um amostrador de ar tipo impactador linear, de um estágio (MERCK e a interpretação dos resultados utilizou dois critérios contidos na norma vigente: o valor máximo aceitável (VMA de fungos em ambientes internos (750UFC/m3 e o limite aceitável entre a contaminação interna e externa (I/E ≤ 1,5. Entre os sessenta ambientes avaliados nos três primeiros pavimentos do HUPE 20% do total encontravam-se em desacordo com relação ao número de UFC/m3 e 16,6% em relação à relação I/E. Conclui-se que 28% dos setores avaliados do 1° pavimento do HUPE e 26% dos contidos no 2° pavimento não estão tendo a renovação de ar desejada, propiciando o acúmulo de fungos.

  3. INTERIORITY

    DEFF Research Database (Denmark)

    Hvejsel, Marie Frier

    been motivated by the particular hypothesis that an introduction of the notion of interiority, as an ability of the spatial envelope itself to address the sensuous scale of furniture, unfolds a particular dual critical potential signifying our experience of domestic architectural quality: On the one...... an interrelation of the functional and emotional dimensions of furniture and envelope as form, with the necessary economy and logic of construction, can be developed as a critical architctural theory for transforming the technical and economical elements of construction into experiences of interiority within...... of furnishing ‘gestures’ requiring of the envelope itself to guide, reveal, cover, caress and embrace us. These ‘gestures’ unite function and emotion by describing at once a physical movement and a feeling which is intrinsic of the spatial envelope itself. - The explanatory level has resulted in the development...

  4. TEMPERATURA DO AR NO INTERIOR DO CANAL DE CULTIVO E CRESCIMENTO DA ALFACE EM FUNÇÃO DO MATERIAL DE COBERTURA DA MESA DE CULTIVO HIDROPÔNICO - NFT

    Directory of Open Access Journals (Sweden)

    MATTOS KAREN MARIA DA COSTA

    2001-01-01

    Full Text Available Estudou-se o efeito de diferentes tipos de material de cobertura de mesas de cultivo hidropônico-NFT na temperatura do interior das canaletas e no crescimento da alface (Lactuca sativa L., cv. Verônica. Em comparação ao tratamento-controle (tubos de polipropileno, utilizaram-se mantas de polietileno dupla face (branco e preto e de Tetra-Pak®. O experimento foi realizado no Núcleo Experimental de Campinas, do Instituto Agronômico (22°54'S, 47°05'W, 674 m de altitude, usando-se mesas de cultivo com 24 m de comprimento, dividida em quatro blocos simétricos com os tratamentos distribuídos ao acaso. Sessenta termopares foram instalados no interior dos tubos para avaliar a temperatura interna do ar; armazenaram-se os sinais em um datalogger. Os valores medidos no interior dos tubos foram sempre superiores aos externos. Entretanto, nos tubos protegidos com Tetra-Pak®, os dados da temperatura interna do ar foram sempre de menor magnitude e, os de massa fresca de plantas de alface, superiores aos demais tratamentos. Essas diferenças foram estatisticamente significativas pelo teste de Tukey ao nível de 5%. No período noturno, nenhuma diferença de comportamento foi obtida entre os três tratamentos usados.

  5. Avaliação microbiológica da qualidade do ar de interiores: aspectos legais e metodológicos - doi: 10.5102/ucs.v10i1.1656

    Directory of Open Access Journals (Sweden)

    Cristiane Caldeira da Silva

    2012-07-01

    Full Text Available A contaminação microbiológica do ar de interiores é um grave problema de saúde pública por estar associada a alergias e a doenças respiratórias. O objetivo desta revisão foi apresentar e discutir os métodos utilizados na avaliação microbiológica da Qualidade do Ar de Interiores (QAI e os aspectos legais em relação aos Valores Máximos Recomendáveis (VMR. A amostragem ativa por impactação em meio sólido tem sido o método mais utilizado, entretanto, diferenças metodológicas contribuem para a dificuldade de padronização dos VMR. Os testes in vitro são considerados uma nova ferramenta para esse tipo de avaliação, entretanto, faltam estudos que utilizem tais métodos para todos os tipos de ambientes. As limitações da Resolução RE nº 9/2003 indicam a necessidade de uma nova legislação principalmente para serviços de saúde.

  6. Modelo de simulação da temperatura e umidade relativa do ar no interior de estufa plástica Simulation model of air temperature and relative humidity in to plastic greenhouses

    Directory of Open Access Journals (Sweden)

    Edilson Costa

    2004-04-01

    Full Text Available A simulação dos parâmetros climáticos de temperatura e umidade relativa do ar no interior de uma estufa plástica, por meio do balanço de energia, pode propiciar ao produtor uma ferramenta de auxílio na tomada de decisão. Nesse propósito, realizou-se uma simulação das condições no interior de estufa plástica, em função de parâmetros externos e internos a ela. A simulação revelou uma temperatura no interior da estufa plástica de 23,6 ºC, e os sensores revelaram um valor médio de 24,1 ºC para o período de cultivo da alface. Para a umidade relativa no interior da estufa plástica, o valor simulado foi de 61,6%, e o obtido com o auxílio de sensores foi de 66,0%. Os valores simulados apresentaram-se próximos dos valores obtidos pelos sensores, mostrando que o modelo pode ser usado para a estimativa da temperatura e umidade relativa do ar no interior da estufa plástica.Simulation of climatic parameters inside air temperature and relative humidity of plastic greenhouse, trough energy balance, allows to growers a good technical tool on the decision making to improve the performance of inside environments. A simulation of internal conditions based on external and internal parameters was evaluated. The results showed the inside mean temperature of 23.6 ºC in comparison with the experimental value of 24.1 ºC, for the cultivated period. The simulated relative humidity presented a value of 61.6% against 66.0% obtained by the sensors. The simulated values were closed to the values obtained by the sensors, which means that the model can be used to determine the internal conditions of plastic greenhouses.

  7. Vacuna frente a infestaciones provocadas por artrópodos hematófagos

    OpenAIRE

    Fuente García, José de la; Villar, Margarita; Prudencio,Carlos Roberto; Pérez de Lastra, José Manuel

    2012-01-01

    La presente invención describe una vacuna frente a infestaciones provocadas por artrópodos hematófagos preferentemente garrapatas, mosquitos, flebótomos, ácaros rojos de las gallinas, pulgas, piojos, piojos de mar, etc. Así mismo, se protege un péptido capaz de inducir una respuesta inmune protectora y de reacción cruzada frente a una infestación provocada por artrópodos hematófagos, un polinucleótido, un vector de expresión, una célula hospedadora, un animal no hum...

  8. Vacuna frente a infestaciones provocadas por artrópodos hematófagos

    OpenAIRE

    Fuente García, José de la; Villar, Margarita; Prudencio,Carlos Roberto; Pérez de Lastra, José Manuel

    2012-01-01

    [ES] La presente invención describe una vacuna frente a infestaciones provocadas por artrópodos hematófagos preferentemente garrapatas, mosquitos, flebótomos, ácaros rojos de las gallinas, pulgas, piojos, piojos de mar, etc. Así mismo, se protege un péptido capaz de inducir una respuesta inmune protectora y de reacción cruzada frente a una infestación provocada por artrópodos hematófagos, un polinucleótido, un vector de expresión, una célula hospedadora, un animal no humano, un anticuerpo, y ...

  9. Ars disyecta Ars disyecta

    Directory of Open Access Journals (Sweden)

    Alejandra Castillo

    2012-07-01

    Full Text Available Bajo la nominación Ars Disyecta se busca exponer el vínculo entre artes visuales, feminismo y metamorfosis. Las prácticas artísticas feministas aquí presentadas se proponen perturbar el espacio metafórico heredado de la diferencia sexual (pensemos, por ejemplo, en las palabras engendramiento, matriz, vida, compenetración o invaginamiento. En este sentido, la nominación Ars disyecta pone en escena un conjunto de prácticas e intervenciones que intentan interrumpir la matriz de la diferencia, desestabilizando lo femenino desde aquellas figuras que se resisten a la lógica de la totalidad y de un tiempo propio. Buscando seguir la huella de un arte disyecto es que interrogaré en este ensayo aquellas autorías feministas que en el arte contemporáneo trafican con las huellas del contagio, la mutación y la alteridad.This article aims to present the relation between visual arts, feminism I and metamorphosis. The feminist artistic practices portrayed in this article attempt to question categories inherited from the metaphor of sexual difference such as engendering, matrix and life. From this perspective, Ars disyecta will establish a set of artistic practices and interventions that intend to interrupt the proper idea of «feminine difference». Following this line of argument, I will discuss in this article a few contemporary feminist works of art that could be defined by words such as contagious, mutation and otherness.

  10. Controversias sobre la enfermedad tromboembólica venosa no provocada en ancianos

    Directory of Open Access Journals (Sweden)

    Mónica Ríos-Prego

    2016-12-01

    Full Text Available La forma no provocada de enfermedad tromboembólica venosa (ETV representa aproximadamente la mitad de los casos de esta patología en ancianos. Como lo demuestran de forma reiterada diferentes trabajos epidemiológicos, es en mayores de 80 años donde la incidencia de la ETV es mayor. Ante la falta de estudios sobre ETV no provocada en ancianos, las recomendaciones sobre tratamiento de esta patología se extrapolan a partir de pacientes más jóvenes. Lo mismo sucede con las reglas de predicción de sangrado y recurrencias. Se dispone en la actualidad de nuevos fármacos anticoagulantes con igual efectividad y mayor seguridad que el tratamiento convencional; aunque la experiencia en ancianos es escasa. Esperamos que los estudios que se publicarán en el futuro (TEVIS, ExACT, ETV-GA nos ayuden a resolver dudas que aún tenemos en este campo.

  11. Atención médica de lesiones intencionales provocadas por la violencia familiar

    Directory of Open Access Journals (Sweden)

    Híjar-Medina Martha

    2003-01-01

    Full Text Available OBJETIVO: Describir y analizar las características de la demanda provocada por lesiones intencionales, en especial las provocadas por violencia familiar en los servicios de urgencias de hospitales públicos de la Ciudad de México. MATERIAL Y MÉTODOS: Se realizó un estudio transversal, en el cual se incluyeron variables relacionadas con el agresor, el agredido y con la atención médica. Se diseñó un cuestionario, que se aplicó durante los meses de enero a abril de 1998 en cuatro hospitales seleccionados. Se realizó un análisis con base en frecuencias simples, ji cuadrado, razón de momios con sus respectivos intervalos de confianza de 95%, y se aplicó modelo de regresión logística ajustado por las variables asociadas con este tipo de demanda. RESULTADOS: De los 598 casos que presentaron lesiones intencionales, 16% correspondió a violencia familiar. Los más afectados fueron el sexo femenino (76%, y jóvenes entre 15 y 29 años de edad (46%. Las variables que se encontraron asociadas con la demanda por lesiones provocadas por violencia familiar, en comparación con otro tipo de violencia, fueron: edad mayor de 30 años (RM 2.36, IC 95% 1.13-4.90, sexo femenino (RM 8.60, IC 95%/4.25-17.40 antecedentes de lesiones previas (RM 4.93, IC 95% 2.03-11.95, el hogar como lugar de ocurrencia (RM 36.25, IC 95% 16.598-79.18 y escolaridad primaria o menos (RM 2.33, IC 95% 1.03-5.26. CONCLUSIONES: Los resultados encontrados coinciden con reportes de otros estudios sobre el tema, y son de gran utilidad como antecedentes para la aplicación de la Norma Oficial Mexicana para la Atención Médica de la Violencia Familiar, que entró en vigencia en marzo de 2000.

  12. Interior Design.

    Science.gov (United States)

    Texas Tech Univ., Lubbock. Home Economics Curriculum Center.

    This document contains teacher's materials for an eight-unit secondary education vocational home economics course on interior design. The units cover period styles of interiors, furniture and accessories, surface treatments and lighting, appliances and equipment, design and space planning in home and business settings, occupant needs, acquisition…

  13. Ars Electronica

    DEFF Research Database (Denmark)

    Kristensen, Thomas Bjørnsten

    2009-01-01

    Anmeldelse af Ars Electronica festivalen 3. - 8. september, 2009 i Linz, Østrig, der fejrede 30 års jubilæum under temaet "Human Nature". Festivalen fokuserer på interaktion mellem menneske, teknologi, kunst og samfund med særlig vægt på udviklingen af computeren og det digitale. Udgivelsesdato: 15.12...

  14. Influência da brisa terra-mar no período de saturação da umidade do ar no interior de dois seringais de cultivo em Ubatuba(SP)

    OpenAIRE

    Pezzopane,José Eduardo Macedo; Ortolani,Altino Aldo; Godoy Jr.,Gentil; Pezzopane,José Ricardo Macedo

    1996-01-01

    Avaliou-se, em Ubatuba(SP), a influência da brisa terra-mar no número de horas com umidade relativa igual ou superior a 90% (NHUR > 90%) no interior de dois seringais [Hevea brasiliensis (Willd. ex Adr. de Juss) Müell Arg.] adultos: um próximo à praia (800 m) e outro distante 5.000 m. Para o período estudado, os resultados demonstraram uma redução significativa do NHUR > 90%, 50% em média, no seringal próximo à praia. A diferença ficou mais evidente, 71,4% em média, quando se analisaram apena...

  15. Ar-Ar_Redux: rigorous error propagation of 40Ar/39Ar data, including covariances

    Science.gov (United States)

    Vermeesch, P.

    2015-12-01

    Rigorous data reduction and error propagation algorithms are needed to realise Earthtime's objective to improve the interlaboratory accuracy of 40Ar/39Ar dating to better than 1% and thereby facilitate the comparison and combination of the K-Ar and U-Pb chronometers. Ar-Ar_Redux is a new data reduction protocol and software program for 40Ar/39Ar geochronology which takes into account two previously underappreciated aspects of the method: 1. 40Ar/39Ar measurements are compositional dataIn its simplest form, the 40Ar/39Ar age equation can be written as: t = log(1+J [40Ar/39Ar-298.5636Ar/39Ar])/λ = log(1 + JR)/λ Where λ is the 40K decay constant and J is the irradiation parameter. The age t does not depend on the absolute abundances of the three argon isotopes but only on their relative ratios. Thus, the 36Ar, 39Ar and 40Ar abundances can be normalised to unity and plotted on a ternary diagram or 'simplex'. Argon isotopic data are therefore subject to the peculiar mathematics of 'compositional data', sensu Aitchison (1986, The Statistical Analysis of Compositional Data, Chapman & Hall). 2. Correlated errors are pervasive throughout the 40Ar/39Ar methodCurrent data reduction protocols for 40Ar/39Ar geochronology propagate the age uncertainty as follows: σ2(t) = [J2 σ2(R) + R2 σ2(J)] / [λ2 (1 + R J)], which implies zero covariance between R and J. In reality, however, significant error correlations are found in every step of the 40Ar/39Ar data acquisition and processing, in both single and multi collector instruments, during blank, interference and decay corrections, age calculation etc. Ar-Ar_Redux revisits every aspect of the 40Ar/39Ar method by casting the raw mass spectrometer data into a contingency table of logratios, which automatically keeps track of all covariances in a compositional context. Application of the method to real data reveals strong correlations (r2 of up to 0.9) between age measurements within a single irradiation batch. Propertly taking

  16. Cepa de Trichoderma útil para el tratamiento y/o prevención de infecciones provocadas por microorganismos fitopatógenos

    OpenAIRE

    Barroso-Albarracín, Juan Bautista; Mercado-Blanco, Jesús; Pérez-Artés, Encarnación; Valverde-Corredor, Antonio; Rodríguez Palero, María Jesús; López García, Antonio Alejandro

    2011-01-01

    Cepa de trichoderma útil para el tratamiento y/o prevención de infecciones provocadas por microorganismos fitopatógenos. La invención se refiere a una nueva cepa de hongos perteneciente a la especie Trichoderma atroviride resistente a cobre capaz de inhibir el crecimiento de otros microorganismos, preferiblemente hongos, fitopatógenos. Por ello, se propone su uso como fertilizante y para la prevención y/o tratamiento de infecciones de plantas y/o suelos provocadas por microorganismos fito...

  17. ArArCALC—software for 40Ar/ 39Ar age calculations

    Science.gov (United States)

    Koppers, Anthony A. P.

    2002-06-01

    ArArCALC is a Microsoft Excel ® 97-2000-XP application for performing calculations in 40Ar/ 39Ar geochronology. It is coded in Visual Basic for Applications and can be used under the Windows ® 95/98/NT/2000/ME/XP operating systems. ArArCALC provides an easy-to-use graphical interface for the calculation of age plateaus, total fusion ages and isochrons following the regression of 40Ar/ 39Ar mass spectrometry data. Results are stored in single Excel workbooks including nine different data tables and four different diagrams. Analytical, internal and external errors are calculated based on error propagation of all input parameters, analytical data and applied corrections. Finally, the age calculation results can be recalibrated with reference to the primary K-Ar standards (e.g. GA-1550, MMhb-1) in order to obtain more consistent absolute40Ar/ 39Ar age determinations. ArArCALC is distributed as freeware.

  18. Interior intrusion detection systems

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez, J.R.; Matter, J.C. (Sandia National Labs., Albuquerque, NM (United States)); Dry, B. (BE, Inc., Barnwell, SC (United States))

    1991-10-01

    The purpose of this NUREG is to present technical information that should be useful to NRC licensees in designing interior intrusion detection systems. Interior intrusion sensors are discussed according to their primary application: boundary-penetration detection, volumetric detection, and point protection. Information necessary for implementation of an effective interior intrusion detection system is presented, including principles of operation, performance characteristics and guidelines for design, procurement, installation, testing, and maintenance. A glossary of sensor data terms is included. 36 figs., 6 tabs.

  19. Ars Himera / Irina Lobanova

    Index Scriptorium Estoniae

    Lobanova, Irina

    2003-01-01

    Iseloomustatakse praegust aega ja moodsat kunsti: valitseb vastutustundetus ja ebainimlikkus. Näited - professor von Hageni "Korpwelten" ja uusim kunstinähtus Ars Chimaera - eksponeerimise eesmärgil surrogaatsete elusolendite saamise kunst

  20. Cepas de trichoderma útiles para el tratamiento y/o prevención de infecciones provocadas por microorganismos fitopatógenos

    OpenAIRE

    Barroso-Albarracín, Juan Bautista; Chaki, Mounira; Mercado-Blanco, Jesús; Pérez-Artés, Encarnación; Valverde-Corredor, Antonio; López García, Antonio Alejandro

    2011-01-01

    [ES] La invención se refiere al uso de cepas de hongos Trichoderma para la prevención y/o tratamiento de infecciones de plantas y/o suelos provocadas por hongos fitopatógenos pertenecientes al género Verticillium. Además, la invención se refiere a nuevas cepas de hongos perteneciente a las especies Trichoderma harzianum y Trichoderma atroviride que son también resistentes a cobre capaces de inhibir el crecimiento de otros microorganismos, preferiblemente hongos, fitopatógenos. Por el...

  1. Cuidados de enfermagem na prevenção da insuficiência renal provocada por contraste após cateterismo

    OpenAIRE

    Camerini,Flavia Giron; Cruz, Isabel

    2008-01-01

    O estudo teve como objetivo identificar produções científicas de enfermagem sobre insuficiência renal aguda provocada por contraste iodado após cateterismo cardíaco, no período de 2002 a 2007, analisando sua aplicabilidade à prática. Foi realizada ainda uma análise crítica das produções científicas selecionadas, delineando os cuidados de enfermagem. Este estudo é uma pesquisa bibliográfica de artigos de enfermagem, encontrados através de busca computadorizada. Dos 47 artigos encontrados, 10 f...

  2. 78 FR 5202 - Notice of Inventory Completion: Arkansas State University Museum, Jonesboro, AR

    Science.gov (United States)

    2013-01-24

    ... National Park Service Notice of Inventory Completion: Arkansas State University Museum, Jonesboro, AR AGENCY: National Park Service, Interior. ACTION: Notice. SUMMARY: The Arkansas State University Museum... culturally affiliated with the human remains may contact the Arkansas State University Museum....

  3. 78 FR 5199 - Notice of Inventory Completion: Arkansas State University Museum, Jonesboro, AR

    Science.gov (United States)

    2013-01-24

    ... National Park Service Notice of Inventory Completion: Arkansas State University Museum, Jonesboro, AR AGENCY: National Park Service, Interior. ACTION: Notice. SUMMARY: The Arkansas State University Museum... associated funerary objects may contact the Arkansas State University Museum. Repatriation of the...

  4. 76 FR 63945 - White River National Wildlife Refuge, AR; Draft Comprehensive Conservation Plan and Environmental...

    Science.gov (United States)

    2011-10-14

    ... Fish and Wildlife Service White River National Wildlife Refuge, AR; Draft Comprehensive Conservation Plan and Environmental Assessment AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of availability; request for comments. SUMMARY: We, the Fish and Wildlife Service (Service), announce...

  5. Las dos clases de actividad muscular provocada: la neuromuscular y la idiomuscular. Sinopsis fisiopatológica y clínica

    Directory of Open Access Journals (Sweden)

    Luis Barraquer-Bordas

    1950-12-01

    Full Text Available El autor denomina actividad muscular provocada a la contracción del músculo esquelético subsiguiente a la percusión mediante el martillo de reflejos, Esta actividad es llamada respuesta. Existen dos clases de respuestas: la neuromuscular o refleja, proporcionada por el sistema anatómico y funcional músculo-sistema nervioso-músculo, y la idiomuscular. El autor analiza el concepto de las respuestas reflejas fásicas por tracción muscular provocadas por el método clínico de percusión, refiriéndose a las concepciones de los clásicos, de Wartenberg, de Monrad-Krohn, etc. Expone su visión personal. Describe la respuesta idiomuscular y sus modificaciones clínicas. Estudia el régimen habitual de convivencia clínica entre la respuesta neuromuscular o refleja y la idiomuscular y las modificaciones de este régimen en los estados patológicos. Se refiere en especial ao fenómeno denominado por Barraquer-Roviralta "fenómeno del contraste de la contracción", que aparece en las lesiones de las raíces posteriores - p. ej. en la tabes - y que consiste en la pérdida de la respuesta refleja con exageración de la idiomuscular.

  6. Studies in Interior Design

    Science.gov (United States)

    Environ Planning Design, 1970

    1970-01-01

    Floor plans and photographs illustrate a description of the Samuel C. Williams Library at Stevens Institute of Technology, Hoboken, N.J. The unusual interior design allows students to take full advantage of the library's resources. (JW)

  7. The Interior of Saturn

    CERN Document Server

    Fortney, Jonathan J; Nettelmann, Nadine; Stevenson, David J; Marley, Mark S; Hubbard, William B; Iess, Luciano

    2016-01-01

    We review our current understanding of the interior structure and thermal evolution of Saturn, with a focus on recent results in the Cassini era. There has been important progress in understanding physical inputs, including equations of state of planetary materials and their mixtures, physical parameters like the gravity field and rotation rate, and constraints on Saturnian free oscillations. At the same time, new methods of calculation, including work on the gravity field of rotating fluid bodies, and the role of interior composition gradients, should help to better constrain the state of Saturn's interior, now and earlier in its history. However, a better appreciation of modeling uncertainties and degeneracies, along with a greater exploration of modeling phase space, still leave great uncertainties in our understanding of Saturn's interior. Further analysis of Cassini data sets, as well as precise gravity field measurements from the Cassini Grand Finale orbits, will further revolutionize our understanding ...

  8. Tolerância a agente curarizante provocada pela administração repetida da droga

    Directory of Open Access Journals (Sweden)

    Antonio Carlos Zanini

    1974-03-01

    Full Text Available Baseados em teoria discutível segundo a qual a miastenia grave é provocada pela presença no sangue de substância curarizante liberada pelo timo, tentou-se reproduzir um modelo experimental. Foram utilizados 40 ratos, criados nas mesmas condições, nascidos no mesmo dia, pesando ao redor de 350 g e divididos em 4 grupos: o Grupo I não foi manuseado; no Grupo II foi injetada solução fisiológica, 1 ml i.p. durante 6 semanas; no Grupo III foi injetada a dimetil tubocurarina (DMT 2,8 mcg/kg i.p., durante o mesmo tempo; no Grupo IV 14 mcg/kg da mesma droga foram injetados i.p. Uma semana após a última injeção i.p. os ratos, anestesiados, foram preparados para registro neuromuscular. O nervo ciático foi estimulado nas freqüências de 0,33 pulsos/seg, 70 pulsos/seg (séries de 10 pulsos a intervalos de 3 seg, 70 pulsos/seg (mantidos por 15 seg e novamente 0,33 pulsos/seg logo após a tetanização. A dose curarizante de DMT foi determinada por uma "terceira parte cega" quando 80% do bloqueio era alcançado. Quando apenas 10 estímulos em alta freqüência foram aplicados ao nervo, foi observada diferença significativa (p<0.05 na resposta: Grupo I, 46,50 ± 20,00 g+; Grupo II, 55,25 ± 11,33 g+; Grupo III, 37,25 ± 10,77 g+; Grupo IV 37,00 ± 12,74 g+. Diferenças significantes de força muscular foram também observadas após a tetanização mantida: Grupo I, 79,00 ± 16,21 g+; Grupo II, 76,75 ± 15,23 g+; Grupo III, 59,12 ± 17,38 g+; Grupo IV, 61,62 ± 14,74 g. Doses significamente mais altas de curare i.v. foram necessárias no grupo injetado diariamente com a maior dose de curare do que em qualquer dos outros grupos (p < 0,01: Grupo I, 3,62 ± 1,17 mcg/kg; Grupo II, 3,69 ± 1,21 mcg/kg; Grupo III, 4,01 ± 0,80 mcg/kg; Grupo IV, 5,48 ± 1,40 mcg/kg. Tais resultados mostram que a administração crônica do curare leva ao enfraquecimento físico e hiposensibilidade à droga. Isto sugere que embora a existência de subst

  9. Understanding Jupiter's Interior

    CERN Document Server

    Militzer, Burkhard; Wahl, Sean M; Hubbard, William

    2016-01-01

    This article provides an overview of how models of giant planet interiors are constructed. We review measurements from past space missions that provide constraints for the interior structure of Jupiter. We discuss typical three-layer interior models that consist of a dense central core and an inner metallic and an outer molecular hydrogen-helium layer. These models rely heavily on experiments, analytical theory, and first-principle computer simulations of hydrogen and helium to understand their behavior up to the extreme pressures ~10 Mbar and temperatures ~10,000 K. We review the various equations of state used in Jupiter models and compare them with shock wave experiments. We discuss the possibility of helium rain, core erosion and double diffusive convection may have important consequences for the structure and evolution of giant planets. In July 2016 the Juno spacecraft entered orbit around Jupiter, promising high-precision measurements of the gravitational field that will allow us to test our understandi...

  10. Ramon Llull's Ars Magna

    DEFF Research Database (Denmark)

    Jensen, Thessa

    of the Christian faith. He soon discovered that the main challenge was to explain the divine Trinity to non Christians. Furthermore, he realised that culture and language barriers must be taken into account when he tried to explain the Christian faith. In-stead of focussing on the differences, Llull sought out...... might be a viable and valuable approach to understand some of the challenges and possibilities found in computer science and ethics. Vita Llull was born in 1232 in Palma de Mallorca, a melting pot for different cul-tures and religions at the time. Being educated at the king’s court, Llull learned......Ramon Llull’s Ars Magna Thessa Jensen Institute for Communication and Psychology, Aalborg University Aalborg, Denmark thessa@hum.aau.dk The Great Art of Ramon Llull — the Ars Magna — must be seen as one of the basic philosophical approaches to formalisation of thought, language, and knowledge...

  11. Prefab-Interiority

    DEFF Research Database (Denmark)

    Frier, Marie; Fisker, Anna Marie; Kirkegaard, Poul Henning

    2010-01-01

    qualities is significantly dependent on our constructive ability to economically and production-technically join building elements. Consequently this paper explores the potential for developing interiority as a theory and design principle for transforming constructive challenges within prefab practice......, and practical realm of prefabrication, leaving the produced houses as monotonous box-like constructions rather than inhabitable homes. But what are the sensuous qualities actually spatially defining a home, and how to formulate design principles for developing and revealing these qualities within prefab....../S. As a research result the paper suggests a positioning of interiority as a theory and design principle for developing a sensuous prefab practice....

  12. Meaning of Interior Tomography

    CERN Document Server

    Wang, Ge

    2013-01-01

    The classic imaging geometry for computed tomography is for collection of un-truncated projections and reconstruction of a global image, with the Fourier transform as the theoretical foundation that is intrinsically non-local. Recently, interior tomography research has led to theoretically exact relationships between localities in the projection and image spaces and practically promising reconstruction algorithms. Initially, interior tomography was developed for x-ray computed tomography. Then, it has been elevated as a general imaging principle. Finally, a novel framework known as omni-tomography is being developed for grand fusion of multiple imaging modalities, allowing tomographic synchrony of diversified features.

  13. Combined K-Ar and 40Ar/39Ar dating of the upper Jaramillo reversal

    Science.gov (United States)

    Guillou, Herve; Carracedo, Juan Carlos; Kissel, Catherine; Laj, Carlo; Nomade, Sebastien; Perez Torrado, Francisco Jose; Rodriguez Gonzalez, Alejandro; Wandres, Camille

    2013-04-01

    The Jaramillo subchron was first evidenced in 1966 (Doell and Dalrymple) through the Rhyolotic domes of the Valles Caldera, New Mexico (USA). 40Ar/39Ar studies achieved by Spell et McDougall (1992), Spell et Harrison (1993), Izett and Obradovich (1994) and Singer et al. (1994) defined the base of this subchron at 1053±6 ka, and the ceiling at 986±5 ka. Channell et al. (2009) delimited the age of the Jaramillo subchron by astronomic calibration (base 1071 ka, top 990 ka). To provide additional absolute ages on this geomagnetic period, which is critical to improve our knowledge of the earth magnetic field behaviour, we have carried out a study combining paleomagnetism and isotopic dating of a lava sequence from Tenerife island. This sequence of basaltic lava flows is some 500 m thick. The first 400 m present, based on field magnetometer measurements, normal polarity lavas, with dykes of normal and reverse polarity, passing at the top to reverse polarity lavas. Preliminary K-Ar ages bracketed this sequence between 1018 ± 18 ka and 978 ± 17 ka. Therefore, the upper Jaramillo reversal at least appeared to be potentially recorded in this sequence. A more detailed paleomagnetic study was then carried out to more precisely delimit the reversal itself (see Laj et al., session EMRP3.4). We have undertaken 40Ar/39Ar incremental heating and unspiked K-Ar experiments on groundmass from four transitionally magnetized flows. The first transitional flow is K-Ar dated at 993 ± 18 ka and 40Ar/39Ar dated at 991 ± 13 ka, the second at 981 ± 17 ka (K-Ar) and 1000 ± 13 ka (40Ar/39Ar), the third at 950 ± 17 ka (K-Ar) and 1000 ± 8 ka (40Ar/39Ar) and the fourth at 984 ± 17 ka (K-Ar) and 977 ± 12 (40Ar/39Ar). 40Ar/39Ar ages and K-Ar ages (relative to FCT 28.02 Ma) are indistinguishable at 2σ. The age of the upper boundary of the Jaramillo event calculated combining 40Ar/39Ar ages and K-Ar ages is 992 ± 6 ka, in agreement with previous estimates.

  14. Photoionization of Ar VIII

    Science.gov (United States)

    Liang, Liang; Jiang, Wen-xian; Zhou, Chao

    2017-01-01

    The photoionization cross section, energy levels and widths of 22 Rydberg series (in the autoionization region) for Na-like Ar VIII were investigated by using of R-matrix method. The relativistic distorted-wave method is used to calculate the radial functions, and QB method of Quigly-Berrington [Quigley et al. 1998] is employed to calculate the resonance levels and widths. We have identified the formant in the figure of the photoionization cross section.

  15. Ars Electronica tulekul / Rael Artel

    Index Scriptorium Estoniae

    Artel, Rael, 1980-

    2003-01-01

    6.-11. IX toimub Austrias Linzis "Ars Electronica" festival, mille teema on "Code - The Language of Our Time". Festivali kavast, osalejatest, ava-performance'ist "Europe - A Symphonic Vision", näitusest "Cyberarts 2003. Prix Ars Electronica"

  16. Cuidados de enfermagem na prevenção da insuficiência renal provocada por contraste após cateterismo Cuidados de enfermagem na prevenção da insuficiência renal provocada por contraste após cateterismo Nursing care in the prevention of renal failure caused by post-catheterism contrast

    Directory of Open Access Journals (Sweden)

    Flavia Giron Camerini

    2008-01-01

    Full Text Available O estudo teve como objetivo identificar produções científicas de enfermagem sobre insuficiência renal aguda provocada por contraste iodado após cateterismo cardíaco, no período de 2002 a 2007, analisando sua aplicabilidade à prática. Foi realizada ainda uma análise crítica das produções científicas selecionadas, delineando os cuidados de enfermagem. Este estudo é uma pesquisa bibliográfica de artigos de enfermagem, encontrados através de busca computadorizada. Dos 47 artigos encontrados, 10 foram selecionados por terem atendido os critérios de inclusão. Após a análise dos artigos, verificamos a importância da atuação do enfermeiro na prevenção da insuficiência renal aguda provocada por contraste. Além disso, evidenciamos a melhor prática de enfermagem para a prevenção da insuficiência renal aguda provocada por contraste.El presente estudio tuvo como objetivo identificar producciones científicas de enfermería sobre la insuficiencia renal aguda provocada por contraste yodado después del cateterismo cardíaco, en el período de 2002 a 2007, analizando su aplicabilidad a la práctica. Se realizó además el análisis crítico de las producciones científicas seleccionadas, delineando los cuidados de enfermería. Este estudio es una investigación bibliográfica de artículos de enfermería, encontrados por medio de búsqueda computarizada. De los 47 artículos encontrados, 10 fueron seleccionados por haber atendido a los criterios de inclusión. Después del análisis de los artículos, verificamos la importancia de la actuación del enfermero en la prevención de la insuficiencia renal aguda provocada por contraste. Además de lo referido, evidenciamos una mejor práctica de enfermería para la prevención de la insuficiencia renal aguda provocada por contraste.The purpose of this study was to identify the nursing scientific production on acute renal failure caused by post-catheterism iodized cardiac contrast

  17. ARABIC LIGHT STEMMER (ARS

    Directory of Open Access Journals (Sweden)

    ASMA AL-OMARI

    2014-12-01

    Full Text Available Stemming is a main step used to process textual data. It is usually used in several types of applications such as: text mining, information retrieval (IR, and natural language processing (NLP. A major task in stemming is to standardize words; which can be achieved by reducing each word to its base (root or stem. Arabic stemming is not an easy task. Unlike other languages, Arabic language is a highly inflected language, since it uses many inflectional forms. Researchers are divided on the benefit of using stemming in fields of IR, NLP...etc., since in Arabic the morphological variants of a certain word are not always semantically related. The aim of this paper is to design and implement a new Arabic light stemmer (ARS which is not based on Arabic root patterns. Instead, it depends on well defined mathematical rules and several relations between letters. A series of tests were conducted on ARS stemmer to compare its effectiveness with the effectiveness of two other Arabic stemmers. Test shows clearly the effectiveness superiority of ARS compared to effectiveness of these two Arabic stemmers.

  18. Department of the Interior

    Science.gov (United States)

    ... to key Interior posts Secretary Zinke accepts President Trump’s Q1 salary as a donation for National Park ... Digg Reddit StumbleUpon Pinterest Secretary Zinke accepts President Trump’s Q1 salary as a donation for National Park ...

  19. Interior Design in Architectural Education

    Science.gov (United States)

    Gurel, Meltem O.; Potthoff, Joy K.

    2006-01-01

    The domain of interiors constitutes a point of tension between practicing architects and interior designers. Design of interior spaces is a significant part of architectural profession. Yet, to what extent does architectural education keep pace with changing demands in rendering topics that are identified as pertinent to the design of interiors?…

  20. l977ar.m77t - MGD77 data file for Geophysical data from field activity L-9-77-AR in Arctic from 08/25/1977 to 10/08/1977

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry, magnetics, and gravity data along with transit satellite navigation data was collected as part of field activity L-9-77-AR in Arctic from...

  1. b174ar.m77t - MGD77 data file for Geophysical data from field activity B-1-74-AR in Arctic from 07/13/1974 to 08/30/1974

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry, gravity, and magnetics data along with transit satellite navigation data was collected as part of field activity B-1-74-AR in Arctic from...

  2. Interior-point methods

    Science.gov (United States)

    Potra, Florian A.; Wright, Stephen J.

    2000-12-01

    The modern era of interior-point methods dates to 1984, when Karmarkar proposed his algorithm for linear programming. In the years since then, algorithms and software for linear programming have become quite sophisticated, while extensions to more general classes of problems, such as convex quadratic programming, semi-definite programming, and nonconvex and nonlinear problems, have reached varying levels of maturity. We review some of the key developments in the area, including comments on both the complexity theory and practical algorithms for linear programming, semi-definite programming, monotone linear complementarity, and convex programming over sets that can be characterized by self-concordant barrier functions.

  3. Atención médica de lesiones intencionales provocadas por la violencia familiar Medical care of injuries caused intentionally by domestic violence

    Directory of Open Access Journals (Sweden)

    Martha Híjar-Medina

    2003-08-01

    Full Text Available OBJETIVO: Describir y analizar las características de la demanda provocada por lesiones intencionales, en especial las provocadas por violencia familiar en los servicios de urgencias de hospitales públicos de la Ciudad de México. MATERIAL Y MÉTODOS: Se realizó un estudio transversal, en el cual se incluyeron variables relacionadas con el agresor, el agredido y con la atención médica. Se diseñó un cuestionario, que se aplicó durante los meses de enero a abril de 1998 en cuatro hospitales seleccionados. Se realizó un análisis con base en frecuencias simples, ji cuadrado, razón de momios con sus respectivos intervalos de confianza de 95%, y se aplicó modelo de regresión logística ajustado por las variables asociadas con este tipo de demanda. RESULTADOS: De los 598 casos que presentaron lesiones intencionales, 16% correspondió a violencia familiar. Los más afectados fueron el sexo femenino (76%, y jóvenes entre 15 y 29 años de edad (46%. Las variables que se encontraron asociadas con la demanda por lesiones provocadas por violencia familiar, en comparación con otro tipo de violencia, fueron: edad mayor de 30 años (RM 2.36, IC 95% 1.13-4.90, sexo femenino (RM 8.60, IC 95%/4.25-17.40 antecedentes de lesiones previas (RM 4.93, IC 95% 2.03-11.95, el hogar como lugar de ocurrencia (RM 36.25, IC 95% 16.598-79.18 y escolaridad primaria o menos (RM 2.33, IC 95% 1.03-5.26. CONCLUSIONES: Los resultados encontrados coinciden con reportes de otros estudios sobre el tema, y son de gran utilidad como antecedentes para la aplicación de la Norma Oficial Mexicana para la Atención Médica de la Violencia Familiar, que entró en vigencia en marzo de 2000.OBJECTIVE: To describe and analyze the causes of emergency care services for intentional injuries, especially those caused by domestic violence, at four public hospitals in Mexico City. MATERIAL AND METHODS: A cross-sectional study was conducted between January and April 1998, which included

  4. 40Ar/39Ar age calibration against counted annuallayers

    DEFF Research Database (Denmark)

    Storey, Michael; Stecher, Ole

    2008-01-01

    worth exploring for an improved absolute age basis for the 40Ar/39Ar system is through cross-calibration with counted annual layers (e.g. tree rings, varves and ice cores). North Atlantic Ash Zone (NAAZ) II is found within the dated part of the annual Greenland ice core record. NAAZ II has been...

  5. Influência da brisa terra-mar no período de saturação da umidade do ar no interior de dois seringais de cultivo em Ubatuba(SP) Influence of the land-sea breese on the saturation period of the relative humidity inside two adult rubber tree plantations in Ubatuba, State of São Paulo, Brazil

    OpenAIRE

    José Eduardo Macedo Pezzopane; Altino Aldo Ortolani; Gentil Godoy Jr.; José Ricardo Macedo Pezzopane

    1996-01-01

    Avaliou-se, em Ubatuba(SP), a influência da brisa terra-mar no número de horas com umidade relativa igual ou superior a 90% (NHUR > 90%) no interior de dois seringais [Hevea brasiliensis (Willd. ex Adr. de Juss) Müell Arg.] adultos: um próximo à praia (800 m) e outro distante 5.000 m. Para o período estudado, os resultados demonstraram uma redução significativa do NHUR > 90%, 50% em média, no seringal próximo à praia. A diferença ficou mais evidente, 71,4% em média, quando se analisaram apena...

  6. Efecto de la administración subcrónica de glucosamina oral en la regulación del peso corporal, glucemia y dislipidemias provocada por una dieta hipercalórica en rata Wistar

    OpenAIRE

    Cornelio Barrientos Alvarado; Jorge Sánchez Vázquez; María Atanasia Silvia Cárdenas Oscoy; Osvaldo Garrido Acosta; Liliana Anguiano Robledo

    2014-01-01

    Objetivo: Este estudio evaluó el efecto de la glucosamina oral en el sobrepeso y dislipidemia provocada por una dieta hipercalórica en ratas. Métodos: En 4 grupos de ratas Wistar: alimentados con dieta comercial para roedores y agua de beber sin grupo de control y con glucosamina (500 mg/kg-1 por día) grupo glucosamina y con dieta hipercalórica enriquecida al 24% (g/...

  7. Interior design conceptual basis

    CERN Document Server

    Sully, Anthony

    2015-01-01

    Maximizing reader insights into interior design as a conceptual way of thinking, which is about ideas and how they are formulated. The major themes of this book are the seven concepts of planning, circulation, 3D, construction, materials, colour and lighting, which covers the entire spectrum of a designer’s activity. Analysing design concepts from the view of the range of possibilities that the designer can examine and eventually decide by choice and conclusive belief the appropriate course of action to take in forming that particular concept, the formation and implementation of these concepts is taken in this book to aid the designer in his/her professional task of completing a design proposal to the client. The purpose of this book is to prepare designers to focus on each concept independently as much as possible, whilst acknowledging relative connections without unwarranted influences unfairly dictating a conceptual bias, and is about that part of the design process called conceptual analysis. It is assu...

  8. Neutron-hole states in 45Ar from p(46Ar,d)45Ar reactions

    CERN Document Server

    Lu, F; Tsang, M B; Bazin, D; Coupland, D; Henzl, V; Henzlova, D; Kilburn, M; Lynch, W G; Rogers, A M; Sanetullaev, A; Sun, Z Y; Youngs, M; Charity, R J; Sobotka, L G; Famiano, M; Hudan, S; Horoi, M; Ye, Y L

    2013-01-01

    To improve the effective interactions in the pf shell, it is important to measure the single particle- and hole- states near the N=28 shell gap. In this paper, the neutron spectroscopic factors of hole-states from the unstable neutron-rich 45Ar (Z=18, N=27) nucleus have been studied using 1H(46Ar, 2H)45Ar transfer reaction in inverse kinematics. Comparison of our results with the particle-states of 45Ar produced in 2H(44Ar, H)45Ar reaction shows that the two reactions populate states with different angular momentum. Using the angular distributions, we are able to confirm the spin assignments of four low-lying states of 45Ar. These are the ground state (f7/2), the first-excited (p3/2), the s1/2 and the d3/2 states. While large basis shell model predictions describe spectroscopic properties of the ground and p3/2 states very well, they fail to describe the s1/2 and d3/2 hole-states.

  9. Influência da brisa terra-mar no período de saturação da umidade do ar no interior de dois seringais de cultivo em Ubatuba(SP Influence of the land-sea breese on the saturation period of the relative humidity inside two adult rubber tree plantations in Ubatuba, State of São Paulo, Brazil

    Directory of Open Access Journals (Sweden)

    José Eduardo Macedo Pezzopane

    1996-01-01

    Full Text Available Avaliou-se, em Ubatuba(SP, a influência da brisa terra-mar no número de horas com umidade relativa igual ou superior a 90% (NHUR > 90% no interior de dois seringais [Hevea brasiliensis (Willd. ex Adr. de Juss Müell Arg.] adultos: um próximo à praia (800 m e outro distante 5.000 m. Para o período estudado, os resultados demonstraram uma redução significativa do NHUR > 90%, 50% em média, no seringal próximo à praia. A diferença ficou mais evidente, 71,4% em média, quando se analisaram apenas os dias não chuvosos, a fim de desconsiderar a saturação atmosférica devida à chuva. Os resultados deste estudo mostram que a advecção condicionada pela brisa terra-mar é fator aerodinâmico de mesoescala que interfere no início e no final da saturação da umidade atmosférica, reduzindo a duração do período de molhamento das folhas.It was studied the influence of the land-sea breese on the duration of relative humidity equal to or higher than 90% (NHUR > 90% inside two adult rubber tree plantations [Hevea brasiliensis (Willd. ex Adr. de Juss Müell Arg.]: one located near the shore (800 m and other approximately 5,000 m away. It was found a significant reduction of NHUR > 90% in the plantation near the shore. This reduction was even more evident in clear nights, without rainfall effect. It is assumed that the advection of land-sea breese interferes at the starting and final moments of the humidity saturation, decreasing the leaf wettness duration period.

  10. Ars Poetica : [luuletused] / Mats Traat

    Index Scriptorium Estoniae

    Traat, Mats, 1936-

    2008-01-01

    Sisu: Ars poetica ; Veepeegel ; Kontrollõed ; Mandariiniriik ; Nikolai Siamashvili (1888-1911) ; Kolmekümne kolmas aasta ; Kiri linast 1966 ; Italmaz Nuriyev ; Rudolf Rimmelile mõeldes ; Gennadi Aigi

  11. Pulsed discharge production Ar* metastables

    Science.gov (United States)

    Han, Jiande; Heaven, Michael C.; Emmons, Daniel; Perram, Glen P.; Weeks, David E.; Bailey, William F.

    2016-03-01

    The production of relatively high densities of Ar* metastables (>1012 cm-3) in Ar/He mixtures, at total pressures close to 1 atm, is essential for the efficient operation of an optically pumped Ar* laser. We have used emission spectroscopy and diode laser absorption spectroscopy measurements to observe the production and decay of Ar* in a parallel plate pulsed discharge. With discharge pulses of 1 μs duration we find that metastable production is dominated by processes occurring within the first 100 ns of the gas break-down. Application of multiple, closely spaced discharge pulses yields insights concerning conditions that favor metastable production. This information has been combined with time-resolved measurements of voltage and current. The experimental results and preliminary modeling of the discharge kinetics are presented.

  12. Interior design and healing architecture

    DEFF Research Database (Denmark)

    Mogensen, Jeppe; Poulsen, Søren Bolvig; Hansen, Allan Grutt

    2015-01-01

    and materials are rather limited. To compliment research in hospital interior design with particular focus on the use of interior textiles, this pilot study explores if the patients’ preferences for more home-like hospital interiors can be linked to a preference for textile-based furniture and materials....... Through a mixed-method study, 43 patients from the outpatient-lung department at Hospital Vendsyssel, Denmark were presented with different types of furniture and materials and were asked about their preferences. Additional questions on their experience of the hospital interior were asked to guide...... analysis. The preference for traditional hospital interiors were thereby linked to the patients’ confined expectations of the hospital appearance. From this pilot study, the paper suggests new approaches and methodologies for further studies to explore the potential of material improvement in hospital...

  13. Graviatoms with de Sitter Interior

    Directory of Open Access Journals (Sweden)

    Irina Dymnikova

    2013-01-01

    Full Text Available We present a graviatom with de Sitter interior as a new candidate to atomic dark matter generically related to a vacuum dark energy through its de Sitter vacuum interior. It is a gravitationally bound quantum system consisting of a nucleus represented by a regular primordial black hole (RPBH, its remnant or gravitational vacuum soliton G-lump, and a charged particle. We estimate probability of formation of RPBHs and G-lumps in the early Universe and evaluate energy spectrum and electromagnetic radiation of graviatom which can in principle bear information about a fundamental symmetry scale responsible for de Sitter interior and serve as its observational signatures.

  14. Analysis list: Ar [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Ar Gonad,Kidney,Prostate + mm9 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/targe...t/Ar.1.tsv http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/target/Ar.5.tsv http://dbarchive.biosciencedbc.jp/...kyushu-u/mm9/target/Ar.10.tsv http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/colo/Ar.Gonad.tsv,http://dbarchive.bioscience...dbc.jp/kyushu-u/mm9/colo/Ar.Kidney.tsv,http://dbarchive.bioscienced...bc.jp/kyushu-u/mm9/colo/Ar.Prostate.tsv http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/colo/Gonad.gml,http://dbarchive.bioscience

  15. 40Ar/39Ar dating of Daqingshan thrust

    Institute of Scientific and Technical Information of China (English)

    LIU Zhenghong; XU Zhongyuan; YANG Zhensheng

    2003-01-01

    The Daqingshan thrust system, to the south of the Shiguai Mesozoic basin, is a complex system of top-to- the-north thrusting tectonic sheets. The thrust system has a complicated evolution due to multi-stage thrusting. In order to date the thrusting events, syntectonic muscovite and biotite grains are respectively analyzed with normal 40Ar/39Ar dating and laser 40Ar/39Ar dating, which yield 2 isochron ages, i.e. 193.74 ± 3.88 Ma and 121.6 ± 1.6 Ma. These ages suggest that faults within the Daqingshan thrust system formed during 2 stages of thrusting, one the early Indosinian and the other the late Yanshanian. The isotopic dating is consistent with field geological relations. Indosinan deformation is evidenced by top-to-the-north thrusting, with the occurrence of a series of large-scale east-west trending thrust faults and folds, while the Yanshanian thrusting is characterized by top-to-the-NNW thrusting. It is superposed on and modifies early Indosinian thrust faults.

  16. Interior Alaska Bouguer Gravity Anomaly

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — A 1 kilometer Complete Bouguer Anomaly gravity grid of interior Alaska. All grid cells within the rectangular data area (from 61 to 66 degrees North latitude and...

  17. Desain Interior Gedung Kesenian Jakarta

    Directory of Open Access Journals (Sweden)

    Sri Rachmayanti

    2011-03-01

    Full Text Available The purpose of this study was to examine the interior design of Gedung Kesenian Jakarta in detail. Another thing is to obtain complete data and analyze the interior design development of GKJ. This study will described in terms of design style and different designs since the early period of this building, the arrival of the Dutch until the present era. Besides aesthetic of interior design, it will review technical factors in the building that related to its interior design, such as acoustic, air conditioning, lighting system, sound system. This research is based on data literartures and interviews with the GKJ. In conclusion, it will discuss the existence of GKJ in relation to local identity, culture and heritage.

  18. Mirador - Earth Surface and Interior

    Data.gov (United States)

    National Aeronautics and Space Administration — Earth Science data access made simple. The goal of the Earth Surface and Interior focus area is to assess, mitigate and forecast the natural hazards that affect...

  19. How Technology Influences Interior Design.

    Science.gov (United States)

    McDavitt, Tish

    1999-01-01

    Examines telecommunication technology's influences on interior school design and effective learning, and discusses how to implement this technology into the school. Building the infrastructure to support telecommunications in an educational setting and the importance of effective lighting are discussed. (GR)

  20. Interior Alaska Bouguer Gravity Anomaly

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — A 1 kilometer Complete Bouguer Anomaly gravity grid of interior Alaska. Only those grid cells within 10 kilometers of a gravity data point have gravity values....

  1. AR DOC: Augmented reality documentaries

    DEFF Research Database (Denmark)

    Vistisen, Peter

    2014-01-01

    Augmented Reality Documentaries (AR DOC) er et ’lille’ Shareplay projekt (ansøgte midler augmented reality cross media løsninger, til at skabe engagerende publikumsformidling...... indenfor oplevelsesindustrien. Projektet har genereret ny viden omkring, hvordan fysisk og digital formidling kan understøttes via Augmented Reality som formidlingsformat....

  2. "Ars Electronica 2009" / Raivo Kelomees

    Index Scriptorium Estoniae

    Kelomees, Raivo, 1960-

    2009-01-01

    30. "Ars Electronica" festival "Human Nature" ("Inimese loomus") Linzis. Osaka ülikooli professori Hiroshi Ishiguro mehaanilis-digitaalsest nukust. Hübriidkunsti kategoorias peapreemia saanud Eduardo Kaci inimtaimest. Konverentsidest. Näitusest "See this Sound", mis oli pühendatud helile kujutavas kunstis

  3. Armenian Astronomical Society (ArAS) activities

    Science.gov (United States)

    Mickaelian, A. M.

    2016-09-01

    A review on the activities and achievements of Armenian Astronomical Society (ArAS) and Armenian astronomy in general during the last years is given. ArAS membership, ArAS electronic newsletters (ArASNews), ArAS webpage, Annual Meetings, Annual Prize for Young Astronomers (Yervant Terzian Prize) and other awards, international relations, presence in international organizations, local and international summer schools, science camps, astronomical Olympiads and other events, matters related to astronomical education, astronomical heritage, amateur astronomy, astronomy outreach and ArAS further projects are described and discussed.

  4. 14 CFR 29.853 - Compartment interiors.

    Science.gov (United States)

    2010-01-01

    ... applicable: (1) Interior ceiling panels, interior wall panels, partitions, galley structure, large cabinet walls, structural flooring, and materials used in the construction of stowage compartments (other...

  5. Variational Principle for Planetary Interiors

    Science.gov (United States)

    Zeng, Li; Jacobsen, Stein B.

    2016-09-01

    In the past few years, the number of confirmed planets has grown above 2000. It is clear that they represent a diversity of structures not seen in our own solar system. In addition to very detailed interior modeling, it is valuable to have a simple analytical framework for describing planetary structures. The variational principle is a fundamental principle in physics, entailing that a physical system follows the trajectory, which minimizes its action. It is alternative to the differential equation formulation of a physical system. Applying the variational principle to the planetary interior can beautifully summarize the set of differential equations into one, which provides us some insight into the problem. From this principle, a universal mass-radius relation, an estimate of the error propagation from the equation of state to the mass-radius relation, and a form of the virial theorem applicable to planetary interiors are derived.

  6. Functional textiles in hospital interiors

    DEFF Research Database (Denmark)

    Mogensen, Jeppe

    This PhD thesis explores the possibilities and design qualities of using functional textiles in the interior of hospital environments, and is the result of a three years collaboration between Aalborg University, Department of Civil Engineering, and VIA University College, VIA Design. The project...... that the physical environments affect the patients’ level of stress and influence their process of recovery and healing. However, although research in this field of hospital design has increased substantially in recent years, knowledge on the use of new materials and textiles in hospital interiors is still rather...... limited. Concerned with the design potentials of using textiles in hospital interiors, the purpose of the PhD project has been to explore the possibilities and design qualities of using these materials in hospital design. Relating to both technical and aesthetic aspects of using functional textiles...

  7. Variational Principle for Planetary Interiors

    CERN Document Server

    Zeng, Li

    2016-01-01

    In the past few years, the number of confirmed planets has grown above 2000. It is clear that they represent a diversity of structures not seen in our own solar system. In addition to very detailed interior modeling, it is valuable to have a simple analytical framework for describing planetary structures. Variational principle is a fundamental principle in physics, entailing that a physical system follows the trajectory which minimizes its action. It is alternative to the differential equation formulation of a physical system. Applying this principle to planetary interior can beautifully summarize the set of differential equations into one, which provides us some insight into the problem. From it, a universal mass-radius relation, an estimate of error propagation from equation of state to mass-radius relation, and a form of virial theorem applicable to planetary interiors are derived.

  8. ar

    Directory of Open Access Journals (Sweden)

    P. Fanlo

    Full Text Available A pesar de que el pulmón es el órgano diana por excelencia de la tuberculosis, cualquier otro órgano y sistema puede verse afectado. En este trabajo se revisan las formas de tuberculosis extrapulmonar a excepción de la pleural que requieren del facultativo, en ocasiones, su más valiosa pericia diagnóstica. Desde la temida meningitis tuberculosa, pasando por la afectación insidiosa de la espondilodiscitis, la llamativa afectación ganglionar, la afectación genitourinaria, la pericarditis, para terminar las formas menos frecuentes como la ocular o la cutánea. En cada apartado indicaremos lo más característico con la finalidad de que pueda servir de orientación diagnóstica y terapéutica.

  9. Ars Industrialis, arsindustrialis.org

    Directory of Open Access Journals (Sweden)

    Frédérique Mingant

    2012-03-01

    Full Text Available The arsindustrialis.org website was created in 2005, when the association Ars Industrialis came into being. The association was founded by a group of philosophers and jurists, on the initiative of philosopher Bernard Stiegler, the former director of the IRCAM (Institut de Recherche et Coordination Acoustique/Musique–Institute of Research and Coordination on Acoustic/Music and the current director of the Department of cultural development at the Centre Georges Pompidou (French National Arts C...

  10. Ars Industrialis, arsindustrialis.org

    OpenAIRE

    Frédérique Mingant

    2012-01-01

    The arsindustrialis.org website was created in 2005, when the association Ars Industrialis came into being. The association was founded by a group of philosophers and jurists, on the initiative of philosopher Bernard Stiegler, the former director of the IRCAM (Institut de Recherche et Coordination Acoustique/Musique–Institute of Research and Coordination on Acoustic/Music) and the current director of the Department of cultural development at the Centre Georges Pompidou (French National Arts C...

  11. ARS - Helsinki - 2006 / Galina Balashova

    Index Scriptorium Estoniae

    Balashova, Galina

    2006-01-01

    Steven Holli projekteeritud Kiasma muuseumihoonest Helsingis. Kontseptuaalkunsti näitusest ARS 06 "Reaalsustunne" Kiasmas. Eestlastest esineb Mark Raidpere. Vene kunstnikegrupi AEC+F ja vene kunstnike Juri Vassiljevi ning Aleksandr Ponomarjovi töödest näitusel. Ka Gerda Steineri & Jörg Lenzlingeri (Šveits), Martin & Munoz'i (USA, Hispaania), arvutigraafik Charles Sandisoni (SB), videokunstnik Bill Viola (USA) jt. töödest

  12. Interior Design: Challenges and Solutions.

    Science.gov (United States)

    School Planning and Management, 1999

    1999-01-01

    Presents solutions to architectural challenges in school interior design; these solutions made the indoor environments more conducive and attractive for learning. Addresses four challenges: making a long corridor look less like a tunnel; maintaining tradition and minimizing cost in a new athletic facility; designing a kindergarten that is secure…

  13. Interior Design: Teacher's Instructional Guide.

    Science.gov (United States)

    Hays, Tricia

    This teacher's instructional guide, which is part of a family and consumer sciences education series focusing on a broad range of employment opportunities, is intended to assist teachers responsible for teaching one- and two-year interior design programs for Texas high school students. The following are among the items included: (1) introductory…

  14. Interior Design Trends in Libraries.

    Science.gov (United States)

    Sager, Don, Ed.

    2000-01-01

    Four contributing authors discuss perspectives on current trends in library interior design. Articles include: "Trends in Library Furnishings: A Manufacturer's Perspective" (Andrea Johnson); "Libraries, Architecture, and Light: The Architect's Perspective" (Rick McCarthy); "The Library Administrator's Perspective" (Chadwick Raymond); and "The…

  15. Occurrences of Excess 40Ar in Hydrothermal Tourmaline:Interpretations from 40Ar-39Ar Dating Results by Stepwise Heating

    Institute of Scientific and Technical Information of China (English)

    QIU Huaning; PU Zhiping; DAI Tongmo

    2007-01-01

    The occurrences of excess 40Ar within a hydrothermal tourmaline is discussed in term of the analysis data of syngenetic muscovite and tourmaline from the Lushui hydrothermal tin-tungsten deposit in western Yunnan, China, using the 40Ar-39Ar stepwise heating technique. About 80% excess 40Ar was released in the last step when the tourmaline was fused, corresponding to a release of only ~3% 39Ar (K), which indicates that most excess 40Ar was held in the mineral lattice rather than in the channels parallel to the Z-axis. This suggests that the excess 40Ar was incorporated during crystallization and not diffused into the tourmaline during the post-crystallization history.

  16. Ars Memorativa, Ars Oblivionis in Middle English Religious Plays

    Directory of Open Access Journals (Sweden)

    Ciobanu Estella Antoaneta

    2015-12-01

    Full Text Available This paper investigates the multi-layered violence of religious representation in the late medieval York biblical plays, with a focus on the Supper at Emmaus. I read Emmaus (Y40, a play which commemorates the Crucifixion and openly encourages strong anti-Judaism, alongside scenes in an early predecessor pageant, The Crucifixion (Y35, within their contemporary devotional and mnemonic practices, i.e. the confessional Book of Margery Kempe and Thomas Bradwardine’s tract on ars memorativa. Emmaus in particular demonstrates how a fundamentally violent ars memorativa, the legacy of ancient rhetoric to the Middle Ages, also underpins the instruction of the laity in the basics of Christian faith, here with the aid of highly musical prosody and repetition, and thereby hones a biased, intolerant and violence-inured Christian collective memory. To study the York play’s position relative to late medieval mnemonic practices, I frame my analysis within memory studies, enriched with the more specific insights offered by social-psychological, neurobiological and cognitivist studies of memory.

  17. PF-AR upgrading project

    CERN Document Server

    Kasuga, T

    2002-01-01

    The upgrading project of the dedicated pulse X-ray source PF-AR has been completed by the end of the 2001 fiscal year. Machine commissioning exclusively using the injector linac was successfully accomplished in the beginning of January 2002. After fine tuning of the machine and cleaning of the vacuum system with the beams from the middle of January to the middle of March, routine operation for users has begun in April. The historical details, commissioning and results of the project are reported. (author)

  18. INTERIORITY - a prefab case study

    DEFF Research Database (Denmark)

    Hvejsel, Marie Frier

    been motivated by the particular hypothesis that an introduction of the notion of interiority, as an ability of the spatial envelope itself to address the sensuous scale of furniture, unfolds a particular dual critical potential signifying our experience of domestic architectural quality: On the one...... an interrelation of the functional and emotional dimensions of furniture and envelope as form, with the necessary economy and logic of construction, can be developed as a critical architctural theory for transforming the technical and economical elements of construction into experiences of interiority within...... of furnishing ‘gestures’ requiring of the envelope itself to guide, reveal, cover, caress and embrace us. These ‘gestures’ unite function and emotion by describing at once a physical movement and a feeling which is intrinsic of the spatial envelope itself. - The explanatory level has resulted in the development...

  19. Propeller aircraft interior noise model

    Science.gov (United States)

    Pope, L. D.; Wilby, E. G.; Wilby, J. F.

    1984-01-01

    An analytical model was developed to predict the interior noise of propeller-driven aircraft. The fuselage model is that of a cylinder with a structurally-integral floor. The cabin sidewall is stiffened by stringers and ring frames, and the floor by longitudinal beams. The cabin interior is covered with a sidewall treatments consisting of layers of porous material and an impervious trim septum. Representation of the propeller pressure field is utilized as input data in the form of the propeller noise signature at a series of locations on a grid over the fuselage structure. Results obtained from the analytical model are compared with test data measured by NASA in a scale model cylindrical fuselage excited by a model propeller.

  20. Interior Operators and Topological Categories

    CERN Document Server

    Luna-Torres, Joaquin

    2010-01-01

    The introduction of the categorical notion of closure operators has unified various important notions and has led to interesting examples and applications in diverse areas of mathematics (see for example, Dikranjan and Tholen (\\cite{DT})). For a topological space it is well-known that the associated closure and interior operators provide equivalent descriptions of the topology, but this is not true in general. So, it makes sense to define and study the notion of interior operators $I$ in the context of a category $\\mathfrak C$ and a fixed class $\\mathcal M$ of monomorphisms in $\\mathfrak C$ closed under composition in such a way that $\\mathfrak C$ is finitely $\\mathcal M$-complete and the inverse images of morphisms have both left and right adjoint, which is the purpose of this paper.

  1. Interiors of Enceladus and Rhea

    Science.gov (United States)

    Rappaport, N. J.; Iess, L.; Tortora, P.; Lunine, J. I.; Armstrong, J. W.; Asmar, S. W.; Somenzi, L.; Zingoni, F.

    2006-01-01

    Measurement method and data set: Gravity field parameters determined by means of range rate measurements over multiple arcs across flyby. Optical imaging not required when reliable a priori estimates of spacecraft state vector are available. Interior of Enceladus: Density of 1605 +/-14 kg/cu m, higher than pre-Cassini estimates, requires a substantial amount of rock to warmer interior to enhance likelihood of differentiation of water from rock-metal. Assume no porosity. Assuming Io s mean density for the rock-metal component, one finds its fractional mass to be 0.52+/-0.06. There is evidence that Enceladus may be differentiated: a) Areas devoid of craters must be geologically young. b) Systems of ridges, fractures, and groove indicate that the surface has been tectonically altered. c) Viscous relaxation of craters has occurred, and d) The plumes near the South pole indicate venting of subsurface volatiles.

  2. Black Hole: The Interior Spacetime

    CERN Document Server

    Ong, Yen Chin

    2016-01-01

    The information loss paradox is often discussed from the perspective of the observers who stay outside of a black hole. However, the interior spacetime of a black hole can be rather nontrivial. We discuss the open problems regarding the volume of a black hole, and whether it plays any role in information storage. We also emphasize the importance of resolving the black hole singularity, if one were to resolve the information loss paradox.

  3. Tolerância a agente curarizante provocada pela administração repetida da droga Tolerance to curarizing drug induced by chronic administration: an experimental study

    Directory of Open Access Journals (Sweden)

    Antonio Carlos Zanini

    1974-03-01

    Full Text Available Baseados em teoria discutível segundo a qual a miastenia grave é provocada pela presença no sangue de substância curarizante liberada pelo timo, tentou-se reproduzir um modelo experimental. Foram utilizados 40 ratos, criados nas mesmas condições, nascidos no mesmo dia, pesando ao redor de 350 g e divididos em 4 grupos: o Grupo I não foi manuseado; no Grupo II foi injetada solução fisiológica, 1 ml i.p. durante 6 semanas; no Grupo III foi injetada a dimetil tubocurarina (DMT 2,8 mcg/kg i.p., durante o mesmo tempo; no Grupo IV 14 mcg/kg da mesma droga foram injetados i.p. Uma semana após a última injeção i.p. os ratos, anestesiados, foram preparados para registro neuromuscular. O nervo ciático foi estimulado nas freqüências de 0,33 pulsos/seg, 70 pulsos/seg (séries de 10 pulsos a intervalos de 3 seg, 70 pulsos/seg (mantidos por 15 seg e novamente 0,33 pulsos/seg logo após a tetanização. A dose curarizante de DMT foi determinada por uma "terceira parte cega" quando 80% do bloqueio era alcançado. Quando apenas 10 estímulos em alta freqüência foram aplicados ao nervo, foi observada diferença significativa (pThe trial is a temptative experimental model of myasthenia gravis based on a doubtful theory whereby this disease is atributed to circulating curare in blood. Forty rats kept under the same conditions, bom on the same day and weighing around 350 g entered the trial, divided in four groups. Group I was not handled, Group II was injected with saline, 1 ml i.p. Group III was submitted to dimethyl tubocurarine iodide (DMT 2,8 mcg/kg i.p. and Group IV received 14 mcg/kg, all solutions being administered daily for a six-week period. One week after the last rats were anesthetized and prepared for cyatic-gastrocnemius neuro-muscular recording. Monopolar pulses were given at frequencies of 0.33 p/sec, 70 p/sec, (trains of 10 pulses at 3 sec intervals, 70 p/sec (kept for 15 sec and again 0.33 p/sec right after tetanus. Curarizing

  4. Efecto de la administración subcrónica de glucosamina oral en la regulación del peso corporal, glucemia y dislipidemias provocada por una dieta hipercalórica en rata Wistar

    Directory of Open Access Journals (Sweden)

    Cornelio Barrientos Alvarado

    2014-12-01

    Full Text Available Objetivo: Este estudio evaluó el efecto de la glucosamina oral en el sobrepeso y dislipidemia provocada por una dieta hipercalórica en ratas. Métodos: En 4 grupos de ratas Wistar: alimentados con dieta comercial para roedores y agua de beber sin grupo de control y con glucosamina (500 mg/kg-1 por día grupo glucosamina y con dieta hipercalórica enriquecida al 24% (g/g compuesta por manteca de cerdo y agua de beber sin grupo hipercalórico y con glucosamina grupo hipercalórico + grupo glucosamina, durante 22 semanas, se evaluaron el peso corporal, grasa abdominal, niveles de glucemia, triglicéridos, colesterol total y lipoproteínas de alta densidad en suero. Resultados: Se observó un aumento del peso corporal y glucemia en suero con dislipidemias en el grupo con dieta hipercalórica grupo hipercalórico versus grupo de controle (p0.05 y regulándose el peso corporal, las lipoproteínas de alta densidad y la glucemia basal (p<0.05. Conclusion: La glucosamina reguló el peso corporal y la glucemia en sangre y minimizó las dislipidemias provocadas por la dieta hipercalórica, favoreciendo el aumento de colesterol lipoproteínas de alta densidad en las ratas. No afectó el peso corporal y el metabolismo lipídico cuando se administró con dieta comercial.

  5. Interpretation of discordant 40Ar/39Ar age-spectra of mesozoic tholeiites from antarctica

    Science.gov (United States)

    Fleck, R.J.; Sutter, J.F.; Elliot, D.H.

    1977-01-01

    Conventional K-Ar ages of tholeiitic basalts of the Ferrar Group in the central Transantarctic Mountains indicate significant loss of radiogenic 40Ar from this unit over much of its outcrop area. Argon loss varies inversely with amount of devitrified matrix in the basalts, which have not been thermally or tectonically disturbed since extrusion. 40Ar/19Ar age-spectra of these tholeiites are generally discordant and indicate significant inhomogeneity in the distribution of radiogenic 40Ar with respect to 39Ar, but are distinctly different from release patterns of thermally disturbed samples. Amounts of argon redistribution vary directly with amounts of devitrification and are reflected in progressive modification of the age spectra. A model of redistribution of radiogenic 40Ar by devitrification of originally glassy matrix is suggested that is consistent with disturbance of the conventional K-Ar systematics as well as the 40Ar/39Ar age-spectra. Samples with substantial redistribution but minor loss of radiogenic argon yield age spectra whose apparent ages decrease from low-temperature to high-temperature steps, similar to those reported for some lunar basalts, breccias, and soils. Modification of all the age spectra is attributed to redistribution of radiogenic 40Ar during progressive devitrification, although 39Ar-recoil effects suggested by Turner and Cadogan (1974) may be a factor in some cases. Where devitrification involves most potassium sites within the basalt, 40Ar/39Ar age-plateaux may be formed that have no geologic significance. ?? 1977.

  6. k179ar.m77t - MGD77 data file for Geophysical data from field activity K-1-79-AR in Prudhoe Bay, Alaska, Arctic Ocean from 07/23/1979 to 08/20/1979

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry data along with DGPS navigation data was collected as part of field activity K-1-79-AR in Prudhoe Bay, Alaska, Arctic Ocean from 07/23/1979 to...

  7. k283ar.m77t - MGD77 data file for Geophysical data from field activity K-2-83-AR in Arctic and Beaufort Sea, Alaska from 08/05/1983 to 08/22/1983

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry data along with DGPS navigation data was collected as part of field activity K-2-83-AR in Arctic and Beaufort Sea, Alaska from 08/05/1983 to...

  8. k176ar.m77t - MGD77 data file for Geophysical data from field activity K-1-76-AR in Arctic from 07/24/1976 to 09/26/1976

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry data along with DGPS navigation data was collected as part of field activity K-1-76-AR in Arctic from 07/24/1976 to 09/26/1976,...

  9. k178ar.m77t - MGD77 data file for Geophysical data from field activity K-1-78-AR in Barrows to Pt. Barrows, Arctic from 08/18/1978 to 09/18/1978

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry data along with DGPS navigation data was collected as part of field activity K-1-78-AR in Barrows to Pt. Barrows, Arctic from 08/18/1978 to...

  10. l676ar.m77t - MGD77 data file for Geophysical data from field activity L-6-76-AR in Arctic from 08/27/1976 to 09/03/1976

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry, gravity, and magnetic data along with DGPS navigation data was collected as part of field activity L-6-76-AR in Arctic from 08/27/1976 to...

  11. k181ar.m77t - MGD77 data file for Geophysical data from field activity K-1-81-AR in Arctic from 07/15/1981 to 08/02/1981

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry data along with DGPS navigation data was collected as part of field activity K-1-81-AR in Arctic from 07/15/1981 to 08/02/1981,...

  12. k281ar.m77t - MGD77 data file for Geophysical data from field activity K-2-81-AR in Arctic from 08/04/1981 to 08/07/1981

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry data along with DGPS navigation data was collected as part of field activity K-2-81-AR in Arctic from 08/04/1981 to 08/07/1981,...

  13. k279ar.m77t - MGD77 data file for Geophysical data from field activity K-2-79-AR in Prudhoe Bay, Alaska, Arctic from 08/25/1979 to 09/23/1979

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry data along with DGPS navigation data was collected as part of field activity K-2-79-AR in Prudhoe Bay, Alaska, Arctic from 08/25/1979 to...

  14. k482ar.m77t - MGD77 data file for Geophysical data from field activity K-4-82-AR in Arctic from 09/13/1982 to 10/10/1982

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry data along with DGPS navigation data was collected as part of field activity K-4-82-AR in Arctic from 09/13/1982 to 10/10/1982,...

  15. k180ar.m77t - MGD77 data file for Geophysical data from field activity K-1-80-AR in Arctic from 07/18/1980 to 08/19/1980

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry data along with DGPS navigation data was collected as part of field activity K-1-80-AR in Arctic from 07/18/1980 to 08/19/1980,...

  16. k183ar.m77t - MGD77 data file for Geophysical data from field activity K-1-83-AR in Arctic from 07/22/1983 to 08/03/1983

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry data along with DGPS navigation data was collected as part of field activity K-1-83-AR in Arctic from 07/22/1983 to 08/03/1983,...

  17. l678ar.m77t - MGD77 data file for Geophysical data from field activity L-6-78-AR in Arctic from 08/26/1978 to 09/20/1978

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry and gravity data along with DGPS navigation data was collected as part of field activity L-6-78-AR in Arctic from 08/26/1978 to 09/20/1978,...

  18. k382ar.m77t - MGD77 data file for Geophysical data from field activity K-3-82-AR in Arctic from 08/25/1982 to 09/08/1982

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry data along with DGPS navigation data was collected as part of field activity K-3-82-AR in Arctic from 08/25/1982 to 09/08/1982,...

  19. Ars grammatica de Dionisio Tracio

    Directory of Open Access Journals (Sweden)

    Beltrán Jorge Enrique

    2003-06-01

    Full Text Available

    Ars Grammatica de Dionisio Tracio (170-90 a. C fue la primera gramática griega que se escribió. Su contenido y método fueron modelos que siguieron las gramáticas escolares posteriores. La versión española que se presenta ahora responde a la necesidad que se tenía en nuestro medio de una traducción completa de este texto. Finalmente, se acompaña la traducción de una introducción y de abundantes notas, en un intento por hacerla comprensible para el hablante del español, no necesariamente conocedor de la lengua griega.

  20. Department of the Interior : Bison Conservation Initiative

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This framework for managing bison by the Department of the Interior (DOI) bureaus articulates a basis for improved management of the species and provides a...

  1. 40Ar/39Ar Interlaboratory Calibration into the Holocene.

    Science.gov (United States)

    Heizler, M. T.; Jicha, B.; Koppers, A. A. P.; Miggins, D. P.

    2015-12-01

    Advances in 40Ar/39Ar analytical precision for very young rocks requires collaborative efforts amongst argon geochronology labs to demonstrate age reproducibility commensurate with high precision. NM Tech (NMT), the University of Wisconsin (UW) and Oregon State University (OSU) have each dated Quaternary flux monitor standard AC-2 sanidine (~1.185 Ma), a blind sanidine described as being 50-100 ka (BS) and sanidine from the Qixiangshan (QIX) flow (~10 ka), Changbaishan volcano, China. The samples were irradiated in a single package with FC-2 sanidine (28.201 Ma) as the flux monitor and the irradiated material was distributed amongst the labs. Heizler was present during analysis at both OSU and UW and Jicha attended OSU during analysis. Physical presence was key towards gaining understanding of individual protocols and prompted valuable discussions. Analyses were carried out on single crystals using total fusion and/or step heating approaches. Age agreement was achieved within 2s uncertainty that ranged between (0.03-0.3%, 0.13-0.37% and 1.8-2.6%) for AC-2, BS and QIX, respectively. Each lab found AC-2 to vary somewhat beyond a normal distribution and to yield an age relative to FC-2 of ~1.185 Ma that is ~1.3% (~5-10 sigma) lower than some published estimates. A key cause of the variation between this study and previous results may be variable gas pressure equilibration times between extraction line and mass spectrometer coupled with variable choices to estimate time zero by other laboratories. The majority of our efforts concentrated on the QIX sanidine where prior data obtained by our labs revealed a factor of two spread in age (~11 and 23 ka) based on experiments carried out by total fusion and bulk incremental heating. By conducting single crystal age spectrum analysis we were able to mitigate effects of melt inclusion hosted excess argon and xenocrystic contamination towards obtaining analytical agreement with apparent ages near 10 ka. However, philosophical

  2. Market Aspects of an Interior Design Program.

    Science.gov (United States)

    Gold, Judy E.

    A project was conducted to evaluate a proposed interior design program in order to determine the marketability (job availability in the field of interior design and home furnishings merchandising) and the feasibility (educational requirements for entrance into the interior design and home furnishings merchandising job market) of the program. To…

  3. State Skill Standards: Housing and Interior Design

    Science.gov (United States)

    Nevada Department of Education, 2008

    2008-01-01

    Meeting the Housing and Interior Design Standards will provide students with skills for personal family life and towards becoming a professional in the interior design field. The mission of Housing and Interior Design education is to prepare students for family life, work life, and careers in the fashion industry by creating opportunities to…

  4. Interior Design Research: A Human Ecosystem Model.

    Science.gov (United States)

    Guerin, Denise A.

    1992-01-01

    The interior ecosystems model illustrates effects on the human organism of the interaction of the natural, behavioral, and built environment. Examples of interior lighting and household energy consumption show the model's flexibility for organizing study variables in interior design research. (SK)

  5. p194ar.m77t and p194ar.h77t: MGD77T data and header files for single-beam bathymetry data for field activity P-1-94-AR in Arctic Ocean from 07/25/1994 to 08/30/1994

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry data along with SINS navigation data was collected as part of the U.S. Geological Survey cruise P-1-94-AR. The cruise was conducted in...

  6. k185ar.m77t and k185ar.h77t: MGD77T data and header files for single-beam bathymetry data for field activity K-1-85-AR in the Arctic from 09/04/1985 to 09/04/1985

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry data along with SINS navigation data was collected as part of the U.S. Geological Survey cruise K-1-85-AR. The cruise was conducted in the...

  7. Re-Evaluation of Ar-39 - Ar-40 Ages for Apollo Lunar Rocks 15415 and 60015

    Science.gov (United States)

    Park, J.; Nyquist, L. E.; Bogard, D. D.; Garrison, D. H.; Shih, C.-Y.

    2010-01-01

    We re-analyzed 39Ar-40Ar ages of Apollo lunar highland samples 15415 and 60015, two ferroan anorthosites analyzed previously in the 1970 s, with a more detailed approach and with revised decay constants. From these samples we carefully prepared 100-200 mesh mineral separates for analysis at the Noble Gas Laboratory at NASA-Johnson Space Center. The Ar-39-Ar-40 age spectra for 15415 yielded an age of 3851 +/- 38 Ma with 33-99% of Ar39 release, roughly in agreement with previously reported Ar-Ar ages. For 60015, we obtained an age of 3584 +/- 152 Ma in 23-98% of Ar39 release, also in agreement with previously reported Ar-Ar ages of approximately 3.5 Ga. Highland anorthosites like these are believed by many to be the original crust of the moon, formed by plagioclase floatation atop a magma ocean, however the Ar-Ar ages of 15415 and 60015 are considerably younger than lunar crust formation. By contrast, recently recovered lunar anorthosites such as Dhofar 489, Dhofar 908, and Yamato 86032 yield older Ar-Ar ages, up to 4.35 Ga, much closer to time of formation of the lunar crust. It follows that the Ar-Ar ages of the Apollo samples must have been reset by secondary heating, and that this heating affected highland anorthosites at both the Apollo 15 and Apollo 16 landing sites but did not affect lunar highland meteorites. One obvious consideration is that while the Apollo samples were collected from the near side of the moon, these lunar meteorites are thought to have originated from the lunar far side

  8. Study of the symbiotic star AR Pavonis

    Directory of Open Access Journals (Sweden)

    C. Quiroga

    2001-01-01

    Full Text Available We present a study of the optical spectra and linear polarization of the eclipsing binary AR Pavonis. The optical spectra were obtained between 1990 and 1998, and polarimetric data between 1995 and 1998. From spectroscopic variations along the orbital motion we analized the nature of the system. Polarimetric studies indicate that AR Pav has intrinsic polarization.

  9. The Coronae of AR Lac

    CERN Document Server

    Huenemoerder, D P; Drake, J J; Sanz-Forcada, J; Canizares, Claude R.; Drake, Jeremy J.; Huenemoerder, David P.; Sanz-Forcada, Jorge

    2003-01-01

    We observed the coronally active eclipsing binary, AR Lac, with the High Energy Transmission Grating on Chandra for a total of 97 ks, spaced over five orbits, at quadratures and conjunctions. Contemporaneous and simultaneous EUV spectra and photometry were also obtained with the Extreme Ultraviolet Explorer. Significant variability in both X-ray and EUV fluxes were observed, dominated by at least one X-ray flare and one EUV flare. We saw no evidence of primary or secondary eclipses. X-ray flux modulation was largest at high temperature, indicative of flare heating of coronal plasma. Line widths interpreted in terms of Doppler broadening suggest that both binary stellar components are active. From line fluxes obtained from total integrated spectra, we have modeled the emission measure and abundance distributions. A strong maximum was found in the differential emission measure, characterized by peaks at log T = 6.9 and 7.4, together with a weak but significant cooler maximum near log T=6.2, and a moderately str...

  10. Revised error propagation of 40Ar/39Ar data, including covariances

    Science.gov (United States)

    Vermeesch, Pieter

    2015-12-01

    The main advantage of the 40Ar/39Ar method over conventional K-Ar dating is that it does not depend on any absolute abundance or concentration measurements, but only uses the relative ratios between five isotopes of the same element -argon- which can be measured with great precision on a noble gas mass spectrometer. The relative abundances of the argon isotopes are subject to a constant sum constraint, which imposes a covariant structure on the data: the relative amount of any of the five isotopes can always be obtained from that of the other four. Thus, the 40Ar/39Ar method is a classic example of a 'compositional data problem'. In addition to the constant sum constraint, covariances are introduced by a host of other processes, including data acquisition, blank correction, detector calibration, mass fractionation, decay correction, interference correction, atmospheric argon correction, interpolation of the irradiation parameter, and age calculation. The myriad of correlated errors arising during the data reduction are best handled by casting the 40Ar/39Ar data reduction protocol in a matrix form. The completely revised workflow presented in this paper is implemented in a new software platform, Ar-Ar_Redux, which takes raw mass spectrometer data as input and generates accurate 40Ar/39Ar ages and their (co-)variances as output. Ar-Ar_Redux accounts for all sources of analytical uncertainty, including those associated with decay constants and the air ratio. Knowing the covariance matrix of the ages removes the need to consider 'internal' and 'external' uncertainties separately when calculating (weighted) mean ages. Ar-Ar_Redux is built on the same principles as its sibling program in the U-Pb community (U-Pb_Redux), thus improving the intercomparability of the two methods with tangible benefits to the accuracy of the geologic time scale. The program can be downloaded free of charge from

  11. 40Ar/39Ar ages of lunar impact glasses: Relationships among Ar diffusivity, chemical composition, shape, and size

    CERN Document Server

    Zellner, N E B

    2015-01-01

    Lunar impact glasses, quenched melts produced during cratering events on the Moon, have the potential to provide not only compositional information about both the local and regional geology of the Moon but also information about the impact flux over time. We present in this paper the results of 73 new 40Ar/39Ar analyses of well-characterized, inclusion-free lunar impact glasses and demonstrate that size, shape, chemical composition, fraction of radiogenic 40Ar retained, and cosmic ray exposure (CRE) ages are important for 40Ar/39Ar investigations of these samples. Specifically, analyses of lunar impact glasses from the Apollo 14, 16, and 17 landing sites indicate that retention of radiogenic 40Ar is a strong function of post-formation thermal history in the lunar regolith, size, and chemical composition. Based on the relationships presented in this paper, lunar impact glasses with compositions and sizes sufficient to have retained 90% of their radiogenic Ar during 750 Ma of cosmic ray exposure at time-integra...

  12. Spatial evaluation of Ar-systematics in rocks from the British Channel Islands: a UV laserprobe Ar/Ar study of excess 40Ar

    Science.gov (United States)

    Schwenzer, S. P.; Sherlock, S.; Kelley, S. P.

    2010-12-01

    The Ar-Ar method is a powerful tool for constraining thermal histories of metamorphic and plutonic rocks, most commonly undertaken on potassium rich mineral separates rather than whole rocks. While this approach usually yields reasonable thermal histories, it is rarely as precise as dating volcanics, and such rocks are also frequently contaminated by excess argon, artificially elevating the Ar-Ar ages. Understanding the evolution of excess argon represents a challenge; whilst it is possible to discern the ‘sink’ as the host mineral now contaminated by excess argon, examining the ‘source’ and ‘transport’ mechanism is more challenging. The approach we have taken here is to combine measurements of potassium rich and potassium poor minerals to understand the argon reservoirs and argon transfer between minerals, grain boundaries and fluids. Considering the system as a whole provides a method for understanding the complete history of the rock and thus assessing any interactions which may impact on the interpretation of ages and thermal history [Kelley, 2002, Chem. Geol. 188]. Here we have studied a series of plutonic and metamorphic basement samples from the British Channel Islands with different ages and post-emplacement histories, namely Icart Gneiss, Perelle Quartz Diorite, L’Ancresse Granodiorite, and Bordeaux Diorite. The formation age of Icart Gneiss is ~2000 Ma [D’Lemos et al., 1990, Geol. Soc. Spec. Pub. 51]. Ar-Ar ages of hornblendes and biotites from quartz diorites on Guernsey and Sark range between 606 and 596 Ma [Dallmeyer et al. 1991, J. Geol. Soc. London 148], whilst U-Pb zircon ages are in the range 710 to 613 Ma [Dallmeyer et al. 1991; Samson & D’Lemos 1998, J. Geol. Soc. London 155; Miller et al. 1999, Tectonophysics 132]. Detailed petrograpic (microscope, electron microprobe) investigations established the crystallization and deformation history of the samples, and revealed that post-magmatic alteration is unevenly distributed. This

  13. 40Ar/39Ar Ages of Carbonaceous Xenoliths in 2 HED Meteorites

    Science.gov (United States)

    Turrin, B.; Lindsay, F. N.; Park, J.; Herzog, G. F.; Delaney, J. S.; Swisher, C. C., III; Johnson, J.; Zolensky, M.

    2016-01-01

    The generally young K/Ar and 40Ar/39Ar ages of CM chondrites made us wonder whether carbonaceous xenoliths (CMX) entombed in Howardite–Eucrite–Diogenite (HED) meteorites might retain more radiogenic 40Ar than do ‘free-range’ CM-chondrites. To find out, we selected two HED breccias with carbonaceous inclusions in order to compare the 40Ar/39Ar release patterns and ages of the inclusions with those of nearby HED material. Carbonaceous inclusions (CMXs) in two HED meteorites lost a greater fraction of radiogenic 40Ar than did surrounding host material, but a smaller fraction of it than did free-range CM-chondrites such as Murchison or more heavily altered ones. Importantly, however, the siting of the CMXs in HED matrix did not prevent the 40Ar loss of about 40 percent of the radiogenic 40Ar, even from phases that degas at high laboratory temperatures. We infer that carbonaceous asteroids with perihelia of 1 astronomical unit probably experience losses of at least this size. The usefulness of 40Ar/39Ar dating for samples returned from C-type asteroids may hinge, therefore, on identifying and analyzing separately small quantities of the most retentive phases of carbonaceous chondrites.

  14. Ars Baltica-verkoston puheenjohtajuus Suomeen Risto Ruohoselle

    Index Scriptorium Estoniae

    1999-01-01

    1990. a. loodud võrgustiku Ars Baltica sekretariaat (Ars Baltica Contact Point & Communication Center) tuleb Kielist Tallinnasse Eesti kultuuriministeeriumi kuni aastani 2002 (Suur-Karja 23). Ars Baltica (ühendus)

  15. Age of the Lava Creek supereruption and magma chamber assembly at Yellowstone based on 40Ar/39Ar and U-Pb dating of sanidine and zircon crystals

    Science.gov (United States)

    Matthews, Naomi E.; Vazquez, Jorge A.; Calvert, Andrew T.

    2015-01-01

    The last supereruption from the Yellowstone Plateau formed Yellowstone caldera and ejected the >1000 km3 of rhyolite that composes the Lava Creek Tuff. Tephra from the Lava Creek eruption is a key Quaternary chronostratigraphic marker, in particular for dating the deposition of mid Pleistocene glacial and pluvial deposits in western North America. To resolve the timing of eruption and crystallization history for the Lava Creek magma, we performed (1) 40Ar/39Ar dating of single sanidine crystals to delimit eruption age and (2) ion microprobe U-Pb and trace-element analyses of the crystal faces and interiors of single zircons to date the interval of zircon crystallization and characterize magmatic evolution. Sanidines from the two informal members composing Lava Creek Tuff yield a preferred 40Ar/39Ar isochron date of 631.3 ± 4.3 ka. Crystal faces on zircons from both members yield a weighted mean 206Pb/238U date of 626.5 ± 5.8 ka, and have trace element concentrations that vary with the eruptive stratigraphy. Zircon interiors yield a mean 206Pb/238U date of 659.8 ± 5.5 ka, and reveal reverse and/or oscillatory zoning of trace element concentrations, with many crystals containing high U concentration cores that likely grew from highly evolved melt. The occurrence of distal Lava Creek tephra in stratigraphic sequences marking the Marine Isotope Stage 16–15 transition supports the apparent eruption age of ∼631 ka. The combined results reveal that Lava Creek zircons record episodic heating, renewed crystallization, and an overall up-temperature evolution for Yellowstone's subvolcanic reservoir in the 103−104 year interval before eruption.

  16. ARS 01 Helsingi Kiasmas / Tarmo Virki

    Index Scriptorium Estoniae

    Virki, Tarmo

    2001-01-01

    Helsingis Kiasmas avatud rahvusvahelisest kunstinäitusest ARS 01 alapealkirjaga "Avanevaid perspektiive", kus esines oma töödega ka Marko Mäetamm. Näituse raames toimuvast Santiago Sierra kunstiprojektist kodututega

  17. "Ars Ornata" Mediterrania / Kadri Mälk

    Index Scriptorium Estoniae

    Mälk, Kadri, 1958-

    1999-01-01

    VI rahvusvaheline ehtekunstinäitus "Ars Ornata" juuni lõpus Barcelonas. Konverentsist, peanäitusest (osalejad Eestist), ehtekunstiõpetust andvast kõrgkoolist Escola Massana'st Barcelonas, õppejõude. Eesti ehtekunsti tulevikust.

  18. Differential AR algorithm for packet delay prediction

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    Different delay prediction algorithms have been applied in multimedia communication, among which linear prediction is attractive because of its low complexity. AR (auto regressive) algorithm is a traditional one with low computation cost, while NLMS (normalize least mean square) algorithm is more precise. In this paper, referring to ARIMA (auto regression integrated with moving averages) model, a differential AR algorithm (DIAR) is proposed based on the analyses of both AR and NLMS algorithms. The prediction precision of the new algorithm is about 5-10 db higher than that of the AR algorithm without increasing the computation complexity.Compared with NLMS algorithm, its precision slightly improves by 0.1 db on average, but the algorithm complexity reduces more than 90%. Our simulation and tests also demonstrate that this method improves the performance of the average end-to-end delay and packet loss ratio significantly.

  19. Ars ornata / Kadri Mälk

    Index Scriptorium Estoniae

    Mälk, Kadri, 1958-

    1998-01-01

    V rahvusvaheline ehtekunsti konverents 'Ars ornata Europeana' juuni lõpus Stockholmis. New Yorgis elava kuraatori Charon Kranseni ja prantsuse ehtekunstniku Christophe Burger' juhitud vestlusringidest. 1997. a. Pariisis loodud International Craft Design Association'ist (ICDA).

  20. Black Hole Interior in Quantum Gravity.

    Science.gov (United States)

    Nomura, Yasunori; Sanches, Fabio; Weinberg, Sean J

    2015-05-22

    We discuss the interior of a black hole in quantum gravity, in which black holes form and evaporate unitarily. The interior spacetime appears in the sense of complementarity because of special features revealed by the microscopic degrees of freedom when viewed from a semiclassical standpoint. The relation between quantum mechanics and the equivalence principle is subtle, but they are still consistent.

  1. Interior Design Students Perceptions of Sustainability

    Science.gov (United States)

    Stark, Johnnie; Park, Jin Gyu

    2016-01-01

    Purpose: This longitudinal study assessed student perceptions of sustainable design issues in the context of an accredited interior design program. Although literature exists documenting the integration of sustainable strategies into interior design curriculum, more analysis is needed to determine the impact of program experiences on students'…

  2. Flexible Interior-Impression-Molding Tray

    Science.gov (United States)

    Anders, Jeffrey E.

    1991-01-01

    Device used inside combustion chamber of complicated shape for nondestructive evaluation of qualities of welds, including such features as offset, warping, misalignment of parts, and dropthrough. Includes flexible polypropylene tray trimmed to fit desired interior surface contour. Two neodymium boron magnets and inflatable bladder attached to tray. Tray and putty inserted in cavity to make mold of interior surface.

  3. ArsP: a methylarsenite efflux permease.

    Science.gov (United States)

    Chen, Jian; Madegowda, Mahendra; Bhattacharjee, Hiranmoy; Rosen, Barry P

    2015-11-01

    Trivalent organoarsenic compounds are far more toxic than either pentavalent organoarsenicals or inorganic arsenite. Many microbes methylate inorganic arsenite (As(III)) to more toxic and carcinogenic methylarsenite (MAs(III)). Additionally, monosodium methylarsenate (MSMA or MAs(V)) has been used widely as an herbicide and is reduced by microbial communities to MAs(III). Roxarsone (3-nitro-4-hydroxybenzenearsonic acid) is a pentavalent aromatic arsenical that is used as antimicrobial growth promoter for poultry and swine, and its active form is the trivalent species Rox(III). A bacterial permease, ArsP, from Campylobacter jejuni, was recently shown to confer resistance to roxarsone. In this study, C. jejuni arsP was expressed in Escherichia coli and shown to confer resistance to MAs(III) and Rox(III) but not to inorganic As(III) or pentavalent organoarsenicals. Cells of E. coli expressing arsP did not accumulate trivalent organoarsenicals. Everted membrane vesicles from those cells accumulated MAs(III) > Rox(III) with energy supplied by NADH oxidation, reflecting efflux from cells. The vesicles did not transport As(III), MAs(V) or pentavalent roxarsone. Mutation or modification of the two conserved cysteine residues resulted in loss of transport activity, suggesting that they play a role in ArsP function. Thus, ArsP is the first identified efflux system specific for trivalent organoarsenicals.

  4. ArDroneXT - Ar.Drone 2 eXTension for swarming and service hosting

    OpenAIRE

    Autefage, Vincent; Chaumette, Serge

    2013-01-01

    This is an Operating System Setup Guide.; This report explains how to upgrade an Ar.Drone 2 for swarming and services hosting. In other words, it gives the technical information required to easily create a swarm of Ar.Drone 2 sharing a Wi-Fi network. Moreover, it describes the process to install new services and applications on the drone.

  5. A Refined Astronomically Calibrated 40Ar/39Ar Age for Fish Canyon Sanidine

    DEFF Research Database (Denmark)

    Rivera, Tiffany; Storey, Michael; Zeeden, Christian

    2011-01-01

    Intercalibration between the astronomical and radio-isotopic dating methods provides a means to improving accuracy and reducing uncertainty of an integrated, multi-chronometer geologic timescale. Here we report a high-precision 40Ar/39Ar age for the Fish Canyon sanidine (FCs) neutron fluence...

  6. A refined astronomically calibrated 40Ar/39Ar age for Fish Canyon sanidine

    NARCIS (Netherlands)

    Rivera, T.A.; Storey, M.; Zeeden, C.; Hilgen, F.J.; Kuiper, K.

    2011-01-01

    Intercalibration between the astronomical and radio-isotopic dating methods provides a means to improving accuracy and reducing uncertainty of an integrated, multi-chronometer geologic timescale. Here we report a high-precision 40Ar/39Ar age for the FishCanyon sanidine (FCs) neutron fluence monitor,

  7. Investigation of Deep Ocean Circulation and Mixing Using Ar-39 (Invited)

    Science.gov (United States)

    Smethie, W. M.; Schlosser, P.

    2013-12-01

    Ar-39 is a radioactive noble gas that forms in the atmosphere by cosmic ray interaction with Ar-40. It has a half-life of 269 years and its production rate in the atmosphere has varied no more than 7% during the past 1000 years. It enters the surface ocean with an average equilibration time of about one month and thus the entire surface ocean, except for ice covered regions at high latitudes, is in quasi-equilibrium with the atmospheric Ar-39:Ar ratio. The well known input to the ocean, radioactive decay constant and chemical inertness make Ar-39 an ideal tracer of circulation and mixing in the deep ocean, where anthropogenic transient tracers such as CFCs and tritium have not yet penetrated. However, due to the difficult measurement, only about 125 oceanic Ar-39 samples have been measured to date. This was done by counting the decays of Ar-39 atoms and required a half liter of argon gas per sample, extracted from about 1500 liters of water. The 125 samples that have been measured provide a glimpse of the information that can be gained from Ar-39 observations. In the Pacific Ocean three vertical profiles show a decrease in Ar-39 from the surface mixed layer through the thermocline to a minimum at intermediate depths and an increase from there to the bottom. This reflects formation of bottom water around the Antarctic continent, spreading of this water northward and upwelling and mixing into intermediate depths. The lowest concentration was 6×4% modern which is equivalent to a 900-1600 year isolation time from the surface. In the Atlantic Ocean newly formed North Atlantic Deep Water has an Ar-39 concentration of about 85% modern compared to 55% modern for newly formed Antarctic Bottom Water and reach values as low as about 40% modern in the interior reflecting the more rapid ventilation of the deep Atlantic Ocean relative to the deep Pacific Ocean. In the Arctic Ocean the mean residence time of deep water in the Nansen, Amundsen and Makarov Basins based on Ar-39

  8. Modeling Augmented Reality User Interfaces with SSIML/AR

    Directory of Open Access Journals (Sweden)

    Arnd Vitzthum

    2006-06-01

    Full Text Available Augmented Reality (AR technologies open up new possibilities especially for task-focused domains such as assembly and maintenance. However, it can be noticed that there is still a lack of concepts and tools for a structured AR development process and an application specification above the code level. To address this problem we introduce SSIML/AR, a visual modeling language for the abstract specification of AR applications in general and AR user interfaces in particular. With SSIML/AR, three different aspects of AR user interfaces can be described: The user interface structure, the presentation of relevant information depending on the user’s current task and the integration of the user interface with other system components. Code skeletons can be generated automatically from SSIML/AR models. This enables the seamless transition from the design level to the implementation level. In addition, we sketch how SSIML/AR models can be integrated in an overall AR development process.

  9. Intoxicações provocadas por agrotóxicos de uso agrícola na microrregião de Dourados, Mato Grosso do Sul, Brasil, no período de 1992 a 2002

    Directory of Open Access Journals (Sweden)

    Dario Xavier Pires

    Full Text Available As notificações de intoxicações e tentativas de suicídio provocadas por agrotóxicos na microrregião de Dourados, Mato Grosso do Sul, entre 1992 e 2002, foram avaliadas baseando-se nos registros do Centro Integrado de Vigilância Toxicológica da Secretaria de Saúde do estado. Foram notificadas 475 ocorrências no período, sendo 261 intoxicações (acidental ou ocupacional, 203 tentativas de suicídio e 11 eventos de causa indeterminada. O Município de Dourados apresentou a maior prevalência de intoxicações, por 100 mil habitantes, considerando a população rural, e Fátima do Sul a segunda maior prevalência de suicídios na microrregião. Correlações significativas foram encontradas entre intoxicação e tentativa de suicídio (r = 0,60; p < 0,05, e entre intoxicação e razão entre a área ocupada por culturas temporárias e área total do município (r = 0,68; p < 0,05. As intoxicações ocorreram predominantemente com homens (87,0%, mas a diferença entre tentativas de suicídio em homens e mulheres não foi acentuada (53,0 e 47,0%, respectivamente. Os eventos ocorreram principalmente entre outubro e março, e os inseticidas organofosforados monocrotofós e metamidofós foram os principais agrotóxicos envolvidos.

  10. AR-扩增实境

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    1、什么是AR-扩增实境?AR-扩增实境(Augmented Reality,简称AR),简单地说,就是把虚拟的物体和现实的场景进行嫁接。这是一种实时地计算摄影机影像的位置及角度并加上相应图像的技术,这种技术的目标是在屏幕上把虚拟世界套在现实世界并进行互动。

  11. Seismic View of the Solar Interior

    Indian Academy of Sciences (India)

    H. M. Antia

    2002-03-01

    The interior of the Sun is not directly observable to us. Nevertheless, it is possible to infer the physical conditions prevailing in the solar interior with the help of theoretical models coupled with observational input provided by measured frequencies of solar oscillations. The frequencies of these solar oscillations depend on the internal structure and dynamics of the Sun and from the knowledge of these frequencies it is possible to infer the internal structure as well as the large scale flows inside the Sun, in the same way as the observations of seismic waves on the surface of Earth help us in the study of its interior. With the accumulation of seismic data over the last six years it has also become possible to study temporal variations in the solar interior. Some of these seismic inferences would be described.

  12. Interior of a Schwarzschild black hole revisited

    CERN Document Server

    Doran, R; Lobo, F S N; Crawford, Paulo; Doran, Rosa; Lobo, Francisco S. N.

    2006-01-01

    The Schwarzschild solution has played a fundamental conceptual role in general relativity, and beyond, for instance, regarding event horizons, spacetime singularities and aspects of quantum field theory in curved spacetimes. However, one still encounters the existence of misconceptions and a certain ambiguity inherent in the Schwarzschild solution in the literature. By taking into account the point of view of an observer in the interior of the event horizon, one verifies that new conceptual difficulties arise. In this work, besides providing a very brief pedagogical review, we further analyze the interior Schwarzschild black hole solution. Firstly, by deducing the interior metric by considering time-dependent metric coefficients, the interior region is analyzed without the prejudices inherited from the exterior geometry. We also pay close attention to several respective cosmological interpretations, and briefly address some of the difficulties associated to spacetime singularities. Secondly, we deduce the con...

  13. 40Ar/39Ar and K/Ar dating of low grade metamorphism: examples on metabasites from Central Chile

    Science.gov (United States)

    Aguirre, L.; Feraud, G.; Fuentes, F.; Delbar, M.; Morata, D.

    2003-04-01

    Dating low to very low-grade burial metamorphic assemblages is often difficult because of (1) few mineral phases compositionally suitable to apply the 40Ar/39Ar and K-Ar methods, and (2) small amount in which these phases are commonly found. K-feldspar adularia, sericitic mica, and celadonite are the best known K-bearing secondary minerals. We present some successful attempts to analyse two distinct secondary phases from a same volcanic formation that allow to test the validity of the measured ages. These ages have been also compared with the crystallisation age of the volcanic rocks in which the secondary phases were lately developed. Adularia and sericite were selected from basic lava flows from a 3 to 13 km thick Cretaceous sequence from the Coastal Range of central Chile, at two different locations: the Bustamante Hill (west from Santiago), and the Cordón de Chacana, c. 80 km further north. Adularia came from a low-variance assemblage with pumpellyite, chlorite and low-albite contained in amygdules whereas sericite was present in milky-white strongly sericitized plagioclase crystals. While small clusters of rare fresh plagioclase grains from lava flows from Bustamante and Chacana displayed concordant plateau ages 119.4 ± 2.4 (2 sigma) and 118.7 ± 0.6 Ma, respectively, the adularia from the same formations gave sensibly younger ages around 94 Ma (high temperature steps), and 96.8 ± 0.2 Ma (plateau age) in Bustamante and Chacana, respectively. Sericite ages were measured in situ into single crystals of strongly transformed plagioclases. The relative proportion of sericite and plagioclase corresponding to each degasing step was monitored by measuring the Ca/K ratio (deduced from 37ArCa/39Ar_K). While intermediate ages were measured on some sericite of both sites (corresponding to a variable but permanent contribution of plagioclase on each step), a plateau age of 97.0 ± 1.6 Ma (concordant with adularia) could be obtained on a strongly sericitized plagioclase

  14. Determining building interior structures using compressive sensing

    Science.gov (United States)

    Lagunas, Eva; Amin, Moeness G.; Ahmad, Fauzia; Nájar, Montse

    2013-04-01

    We consider imaging of the building interior structures using compressive sensing (CS) with applications to through-the-wall imaging and urban sensing. We consider a monostatic synthetic aperture radar imaging system employing stepped frequency waveform. The proposed approach exploits prior information of building construction practices to form an appropriate sparse representation of the building interior layout. We devise a dictionary of possible wall locations, which is consistent with the fact that interior walls are typically parallel or perpendicular to the front wall. The dictionary accounts for the dominant normal angle reflections from exterior and interior walls for the monostatic imaging system. CS is applied to a reduced set of observations to recover the true positions of the walls. Additional information about interior walls can be obtained using a dictionary of possible corner reflectors, which is the response of the junction of two walls. Supporting results based on simulation and laboratory experiments are provided. It is shown that the proposed sparsifying basis outperforms the conventional through-the-wall CS model, the wavelet sparsifying basis, and the block sparse model for building interior layout detection.

  15. Modification of stearic acid in Ar and Ar-O{sub 2} pulsed DC discharges

    Energy Technology Data Exchange (ETDEWEB)

    Bernardelli, E.A.; Souza, T.; Maliska, A.M.; Kleinjohann, K.J.; Bendo, T. [Federal University of Santa Catarina (UFSC), Florianopolis, SC (Brazil); Mafra, M. [Nancy-Universite (France). Institut Jean Lamour; CNRS, Nancy (France); Belmonte, T. [Federal University of Technology from Parana (UTFPR), Curitiba, PR (Brazil)

    2010-07-01

    Stearic acid (C{sub 1}8H{sub 36}O{sub 2}) was treated into Ar and Ar-O{sub 2}(10%) pulsed DC discharge created by a cathode-anode confined system. The samples were placed at the floating potential. The results show that the mass variation of the stearic acid samples after Ar-O{sub 2} plasma exposure is more important than the pure Ar plasma treatments. This comportment demonstrate that the oxygen actives species (O and O{sub 2} in all states) strongly enhance the etching process with regards to A{sup *} species, regardless of their concentration. After treatment by Ar and Ar-O{sub 2} plasma, analyses by X-ray diffraction show a significant structural modification of the samples surface, utilizing Ar-O{sub 2} plasma the modification was more pronounced. The chemical composition evolution shows that the acid function is etched preferentially in the beginning of the treatment (about 5 min) and that after 10 min the carbonic chains seems to be functionalized by oxygen. (author)

  16. Moving Beyond the Androgen Receptor (AR): Targeting AR-Interacting Proteins to Treat Prostate Cancer.

    Science.gov (United States)

    Foley, Christopher; Mitsiades, Nicholas

    2016-04-01

    Medical or surgical castration serves as the backbone of systemic therapy for advanced and metastatic prostate cancer, taking advantage of the importance of androgen signaling in this disease. Unfortunately, resistance to castration emerges almost universally. Despite the development and approval of new and more potent androgen synthesis inhibitors and androgen receptor (AR) antagonists, prostate cancers continue to develop resistance to these therapeutics, while often maintaining their dependence on the AR signaling axis. This highlights the need for innovative therapeutic approaches that aim to continue disrupting AR downstream signaling but are orthogonal to directly targeting the AR itself. In this review, we discuss the preclinical research that has been done, as well as clinical trials for prostate cancer, on inhibiting several important families of AR-interacting proteins, including chaperones (such as heat shock protein 90 (HSP90) and FKBP52), pioneer factors (including forkhead box protein A1 (FOXA1) and GATA-2), and AR transcriptional coregulators such as the p160 steroid receptor coactivators (SRCs) SRC-1, SRC-2, SRC-3, as well as lysine deacetylases (KDACs) and lysine acetyltransferases (KATs). Researching the effect of-and developing new therapeutic agents that target-the AR signaling axis is critical to advancing our understanding of prostate cancer biology, to continue to improve treatments for prostate cancer and for overcoming castration resistance.

  17. Ar-Ar Impact Heating Ages of Eucrites and Timing of the LHB

    Science.gov (United States)

    Bogard, Donald; Garrison, Daniel

    2009-01-01

    Eucrites and howardites, more than most meteorite types, show extensive impact resetting of their Ar-39-Ar-40 (K-Ar) ages approximately equal to 3.4-4.1 Ga ago, and many specimens show some disturbance of other radiometry chronometers as well. Bogard (1995) argued that this age resetting occurred on Vesta and was produced by the same general population of objects that produced many of the lunar impact basins. The exact nature of the lunar late heavy bombardment (LHB or 'cataclysm') remains controversial, but the timing is similar to the reset ages of eucrites. Neither the beginning nor ending time of the lunar LHB is well constrained. Comparison of Ar-Ar ages of brecciated eucrites with data for the lunar LHB can resolve both the origin of these impactors and the time period over which they were delivered to the inner solar system. This abstract reports some new Ar-Ar age data for eucrites, obtained since the authors' 1995 and 2003 papers.

  18. Ar-40/Ar-39 Ages of Maskelynite Grains from ALHA 77005

    Science.gov (United States)

    Turrin, B.; Park, J.; Herzog, G. F.; Lindsay, F. N.; Delaney, J. S.; Nyquist, L. E.; Swisher, C., III

    2013-01-01

    We present Ar-40/Ar-39 measurements for twelve small (20-60 micro-g) maskelynite samples from the heavily shocked martian meteorite ALHA 77005. The reported modal composition for ALHA 77005 is 50-60% olivine (Fa28), 30-40% pyroxene (Wo5Fs23En72), approx.8% maskelynite (An53), and approx.2% opaques by volume [1]). The meteorite is usually classified as a lherzolite. Previous Studies - Ar-40/Ar-39 results from previous work display disturbed release spectra [2,3]. In study [2], Ar-40/Ar-39 measurements on a 52-mg whole-rock sample produced an extremely disturbed release spec-trum, with all calculated apparent ages > 1 Ga, (Fig. 1). In a subsequent study [3], a light and a dark phase were analyzed. A 2.3-mg sample of the light, relatively low-K phase produced a disturbed release spectrum. For the first 20% of the Ar-39(sub K), most of the apparent ages exceeded >1 Ga; the remaining 80% yielded ages between 0.3-0.5 Ga. The integrated age for this phase is 0.9 Ga.

  19. Potassium Isotopic Compositions of NIST Potassium Standards and 40Ar/39Ar Mineral Standards

    Science.gov (United States)

    Morgan, Leah; Tappa, Mike; Ellam, Rob; Mark, Darren; Higgins, John; Simon, Justin I.

    2013-01-01

    Knowledge of the isotopic ratios of standards, spikes, and reference materials is fundamental to the accuracy of many geochronological methods. For example, the 238U/235U ratio relevant to U-Pb geochronology was recently re-determined [1] and shown to differ significantly from the previously accepted value employed during age determinations. These underlying values are fundamental to accurate age calculations in many isotopic systems, and uncertainty in these values can represent a significant (and often unrecognized) portion of the uncertainty budget for determined ages. The potassium isotopic composition of mineral standards, or neutron flux monitors, is a critical, but often overlooked component in the calculation of K-Ar and 40Ar/39Ar ages. It is currently assumed that all terrestrial materials have abundances indistinguishable from that of NIST SRM 985 [2]; this is apparently a reasonable assumption at the 0.25per mille level (1s) [3]. The 40Ar/39Ar method further relies on the assumption that standards and samples (including primary and secondary standards) have indistinguishable 40K/39K values. We will present data establishing the potassium isotopic compositions of NIST isotopic K SRM 985, elemental K SRM 999b, and 40Ar/39Ar biotite mineral standard GA1550 (sample MD-2). Stable isotopic compositions (41K/39K) were measured by the peak shoulder method with high resolution MC-ICP-MS (Thermo Scientific NEPTUNE Plus), using the accepted value of NIST isotopic SRM 985 [2] for fractionation [4] corrections [5]. 40K abundances were measured by TIMS (Thermo Scientific TRITON), using 41K/39K values from ICP-MS measurements (or, for SRM 985, values from [2]) for internal fractionation corrections. Collectively these data represent an important step towards a metrologically traceable calibration of 40K concentrations in primary 40Ar/39Ar mineral standards and improve uncertainties by ca. an order of magnitude in the potassium isotopic compositions of standards.

  20. "ARS 01", perspektiivide avamine / Helen Kivisoo

    Index Scriptorium Estoniae

    Kivisoo, Helen

    2001-01-01

    30. IX 2001-20. I 2002 Kiasmas kuuendat korda toimuvast rahvusvahelisest näitusest "ARS", kus Eestist osaleb Marko Mäetamm. Kuraatorid Tuula Arkio, Maaretta Jaukkuri, Patrik Nyberg, Jari-Pekka Vanhala. Teemaks "kolmas ruum". Näituse kajastamisest.

  1. User Interface Design for Military AR Applications

    Science.gov (United States)

    2010-12-12

    SI: AUGMENTED REALITY User interface design for military AR applications Mark A. Livingston • Zhuming Ai • Kevin Karsch • Gregory O. Gibson Received...several visual representations fundamental to SA. The UI M. A. Livingston (&) Z. Ai K. Karsch G. O. Gibson Naval Research Laboratory, Washington

  2. "Ars Dictaminis" and Modern Rhetorical Practice.

    Science.gov (United States)

    Sewell, Ernestine P.

    Although not all the problems of writing are solved by practice in letter writing, a review of the classical texts on "ars dictaminis"--letter writing--creates a strong argument for its increased use as an exercise in college composition classrooms. By incorporating the lessons of dictamen as a device for achieving rhetorical modes--narration,…

  3. 78 FR 9448 - Arkansas Disaster #AR-00061

    Science.gov (United States)

    2013-02-08

    ... ADMINISTRATION Arkansas Disaster AR-00061 AGENCY: U.S. Small Business Administration. ACTION: Notice SUMMARY: This is a Notice of the Presidential declaration of a major disaster for Public Assistance Only for the... Disaster Assistance, U.S. Small Business Administration, 409 3rd Street SW., Suite 6050, Washington,...

  4. Theoretical prediction on vibrational spectra of [Ar…Ar-H]+

    Institute of Scientific and Technical Information of China (English)

    LI; Wei(李巍); ZHAO; Xinsheng(赵新生)

    2003-01-01

    Centrosymmetric linear [Ar-H-Ar]+ and asymmetric linear [Ar…Ar-H]+ are two stable configurations of [Ar2H]+. Based on the global potential energy surface of [Ar2H]+ provided by our group recently, we calculated the vibrational spectra of [Ar…Ar-H]+ with total angular momentum J = 0 by time-dependent quantum mechanical method, and the influence of quantum tunneling effect on vibrational spectra was found. With the help of the observation on the eigenstate functions and the modified potential energy surface, assignments were made to the spectra. The strong coupling between the excited bending mode of [Ar-H-Ar]+ and the vibrational states of [Ar…Ar-H]+ was discussed.

  5. Metalloregulatory properties of the ArsD repressor.

    Science.gov (United States)

    Chen, Y; Rosen, B P

    1997-05-30

    The plasmid-encoded arsenical resistance (ars) operon of plasmid R773 produces resistance to trivalent and pentavalent salts of the metalloids arsenic and antimony in cells of Escherichia coli. The first two genes in the operon, arsR and arsD, were previously shown to encode trans-acting repressor proteins. ArsR controls the basal level of expression of the operon, while ArsD controls maximal expression. Thus, action of the two repressors form a homeostatic regulatory circuit that maintains the level of ars expression within a narrow range. In this study, we demonstrate that ArsD binds to the same site on the ars promoter element as ArsR but with 2 orders of magnitude lower affinity. The results of gel shift assays demonstrate that ArsD is released from the ars DNA promoter by phenylarsine oxide, sodium arsenite, and potassium antimonyl tartrate (in order of effectiveness), the same inducers to which ArsR responds. Using the quenching of intrinsic tryptophan fluorescence to measure the affinity of the repressor for inducers, apparent Kd values for Sb(III) and As(III) of 2 and 60 microM, respectively, were obtained. These results demonstrate that the arsR-arsD pair provide a sensitive mechanism for sensing a wide range of environmental heavy metals.

  6. Construction of a chimeric ArsA-ArsB protein for overexpression of the oxyanion-translocating ATPase.

    Science.gov (United States)

    Dou, D; Owolabi, J B; Dey, S; Rosen, B P

    1992-12-25

    Resistance to toxic oxyanions of arsenic and antimony in Escherichia coli is conferred by the conjugative R-factor R773, which encodes an ATP-driven anion extrusion pump. The ars operon is composed of three structural genes, arsA, arsB, and arsC. Although transcribed as a single unit, the three genes are differentially expressed as a result of translational differences, such that the ArsA and ArsC proteins are produced in high amounts relative to the amount of ArsB protein made. Consequently, biochemical characterization of the ArsB protein, which is an integral membrane protein containing the anion-conducting pathway, has been limited, precluding studies of the mechanism of this oxyanion pump. To overexpress the arsB gene, a series of changes were made. First, the second codon, an infrequently used leucine codon, was changed to a more frequently utilized codon. Second, a GC-rich stem-loop (delta G = -17 kcal/mol) between the third and twelfth codons was destabilized by changing several of the bases of the base-paired region. Third, the re-engineered arsB gene was fused 3' in frame to the first 1458 base pairs of the arsA gene to encode a 914-residue chimeric protein (486 residues of the ArsA protein plus 428 residues of the mutated ArsB protein) containing the entire re-engineered ArsB sequence except for the initiating methionine. The ArsA-ArsB chimera has been overexpressed at approximately 15-20% of the total membrane proteins. Cells producing the chimeric ArsA-ArsB protein with an arsA gene in trans excluded 73AsO2- from cells, demonstrating that the chimera can function as a component of the oxyanion-translocating ATPase.

  7. Recoil ion charge state distributions in low energy Ar{sup q+} {minus} Ar collisions

    Energy Technology Data Exchange (ETDEWEB)

    Vancura, J.; Marchetti, V.; Kostroun, V.O.

    1992-12-31

    We have measured the recoil ion charge state distributions in Ar{sup q+} -- Ar (8{le}q{le}16) collisions at 2.3 qkeV and 0.18qkeV by time of flight (TOF) spectroscopy. For Ar{sup 8-16+}, recoil ion charge states up to 6+ are clearly present, indicating that the 3p subshell in the target atom is being depleted, while for Ar{sup 10-16+}, there is evidence that target 3s electrons are also being removed. Comparison of the recoil ion charge state spectra at 2.3 and 0.18 qkeV shows that for a given projectile charge, there is very little dependence of the observed recoil target charge state distribution on projectile energy.

  8. The effects of retrograde reactions and of diffusion on 39Ar-40Ar ages of micas

    DEFF Research Database (Denmark)

    Allaz, Julien; Engi, Martin; Berger, Alfons

    2011-01-01

    Effects of metamorphic reactions occurring during decompression were explored to understand their influence on 39Ar-40Ar ages of micas. Monometamorphic metasediments from the Lepontine Alps (Switzerland) were studied. Collected samples reached lower amphibolite facies during the Barrovian....../K and Cl/K ratios) did not change and the resulting ages can be interpreted unambiguously. In mineral separates containing two white micas, Ca/K and Cl/K ratios were variable, reflecting non-simultaneous laboratory degassing of the two heterochemical Ar-reservoirs. These ratios were used to identify each...... Ar reservoir and to unravel the age. In a chlorite-margarite-biotite-calcschist equilibrated near 560 °C and 0.65 GPa, biotite, margarite, and muscovite all yield ages around 18 Ma. At slightly higher grade (560-580 °C, 0.8-0.9 GPa), the assemblage muscovite-paragonite-plagioclase is at equilibrium...

  9. 14 CFR 23.853 - Passenger and crew compartment interiors.

    Science.gov (United States)

    2010-01-01

    ...) Interior ceiling panels, interior wall panels, partitions, galley structure, large cabinet walls, structural flooring, and materials used in the construction of stowage compartments (other than...

  10. About Black Holes Without Trapping Interior

    CERN Document Server

    Cabo-Montes de Oca, Alejandro; Cabo, Alejandro; Ayon, Eloy

    1999-01-01

    Physical arguments related with the existence of black hole solutions having a non trapping interior are discussed. Massive scalar fields interacting with gravity are considered. Interior asymptotic solutions showing a scalar field approaching a constant value at the horizon are given. It is argued that the coupled Einstein-Klein-Gordon equations can be satisfied in the sense of the generalized functions after removing a particular regularization designed for matching the interior solution with an external Scwartzschild spacetime. The scalar field appears as just avoiding the appearance of closed trapped surfaces while coming from the exterior region. It also follows that the usual space integral over the temporal- temporal components of energy-momnetum tensor in the internal region just gives the total proper mass associated to the external Schwartzschild solution, as it should be expected.

  11. Interior design. Mastering the master plan.

    Science.gov (United States)

    Mesbah, C E

    1995-10-01

    Reflecting on the results of the survey, this proposed interior design master planning process addresses the concerns and issues of both CEOs and facility managers in ways that focus on problem-solving strategies and methods. Use of the interior design master plan process further promotes the goals and outcomes expressed in the survey by both groups. These include enhanced facility image, the efficient selection of finishes and furnishings, continuity despite staff changes, and overall savings in both costs and time. The interior design master plan allows administrators and facility managers to anticipate changes resulting from the restructuring of health care delivery. The administrators and facility managers are then able to respond in ways that manage those changes in the flexible and cost-effective manner they are striving for. This framework permits staff members to concentrate their time and energy on the care of their patients--which is, after all, what it's all about.

  12. The Prefabricated Interior Design Studio: An Exploration into the History and Sustainability of Interior Prefabrication

    Science.gov (United States)

    Schneiderman, Deborah; Freihoefer, Kara

    2013-01-01

    This article examines the integration of prefabrication into an interior design studio. A review of the literature revealed that while there is a paucity of categorical research focused on this subject, the subject is historically significant with an abundance of evidence regarding the prefabrication of the interior environment dating back…

  13. Interior point algorithms theory and analysis

    CERN Document Server

    Ye, Yinyu

    2011-01-01

    The first comprehensive review of the theory and practice of one of today's most powerful optimization techniques. The explosive growth of research into and development of interior point algorithms over the past two decades has significantly improved the complexity of linear programming and yielded some of today's most sophisticated computing techniques. This book offers a comprehensive and thorough treatment of the theory, analysis, and implementation of this powerful computational tool. Interior Point Algorithms provides detailed coverage of all basic and advanced aspects of the subject.

  14. 40Ar* loss in experimentally deformed muscovite and biotite with implications for 40Ar/39Ar geochronology of naturally deformed rocks

    Science.gov (United States)

    Cosca, M.; Stunitz, H.; Bourgeix, A.-L.; Lee, J.P.

    2011-01-01

    The effects of deformation on radiogenic argon (40Ar*) retentivity in mica are described from high pressure experiments performed on rock samples of peraluminous granite containing euhedral muscovite and biotite. Cylindrical cores, ???15mm in length and 6.25mm in diameter, were drilled from granite collected from the South Armorican Massif in northwestern France, loaded into gold capsules, and weld-sealed in the presence of excess water. The samples were deformed at a pressure of 10kb and a temperature of 600??C over a period 29 of hours within a solid medium assembly in a Griggs-type triaxial hydraulic deformation apparatus. Overall shortening in the experiments was approximately 10%. Transmitted light and secondary and backscattered electron imaging of the deformed granite samples reveals evidence of induced defects and for significant physical grain size reduction by kinking, cracking, and grain segmentation of the micas.Infrared (IR) laser (CO2) heating of individual 1.5-2.5mm diameter grains of muscovite and biotite separated from the undeformed granite yield well-defined 40Ar/39Ar plateau ages of 311??2Ma (2??). Identical experiments on single grains separated from the experimentally deformed granite yield results indicating 40Ar* loss of 0-35% in muscovite and 2-3% 40Ar* loss in biotite. Intragrain in situ ultraviolet (UV) laser ablation 40Ar/39Ar ages (??4-10%, 1??) of deformed muscovites range from 309??13 to 264??7Ma, consistent with 0-16% 40Ar* loss relative to the undeformed muscovite. The in situ UV laser ablation 40Ar/39Ar ages of deformed biotite vary from 301 to 217Ma, consistent with up to 32% 40Ar* loss. No spatial correlation is observed between in situ 40Ar/39Ar age and position within individual grains. Using available argon diffusion data for muscovite the observed 40Ar* loss in the experimentally treated muscovite can be utilized to predict average 40Ar* diffusion dimensions. Maximum 40Ar/39Ar ages obtained by UV laser ablation overlap those

  15. Enseñar un oficio, proponer una forma

    OpenAIRE

    Vitale, Daniele

    2015-01-01

    El oficio de enseñar. Enseñar a través de la técnica, enseñar por vía de la cultura. Una ciudadela de figuras. Imitación y relación personal. Enseñar a partir de un sistema. Partir del inicio. Posponer la realidad Peer Reviewed

  16. On concentration of $^{42}$Ar in the Earth's atmosphere

    CERN Document Server

    Barabash, A S

    2016-01-01

    Data from the DBA liquid argon ionization chamber experiment have been used to obtain an estimate on the concentration of $^{42}$Ar in the Earth's atmosphere, $6.8^{+1.7}_{-3.2}\\cdot10^{-21}$ atoms of $^{42}$Ar per atom of $^{40}$Ar corresponding to the $^{42}$Ar activity of $1.2^{+0.3}_{-0.5}$ $\\mu$Bq per cubic meter of air.

  17. On concentration of 42Ar in the Earth's atmosphere

    Science.gov (United States)

    Barabash, A. S.; Saakyan, R. R.; Umatov, V. I.

    2016-12-01

    Data from the DBA liquid argon ionization chamber experiment have been used to obtain an estimate on the concentration of 42Ar in the Earth's atmosphere, 6 .8-3.2+1.7 ·10-21 atoms of 42Ar per atom of 40Ar corresponding to the 42Ar activity of 1 .2-0.5+0.3 μBq per cubic meter of air.

  18. Growth Rate Estimates of Supergene Manganese Nodule by 40Ar/39Ar Isotopic Dating

    Institute of Scientific and Technical Information of China (English)

    Li Jianwei; Vasconcelos P M

    2004-01-01

    Increasing world-class, high-grade, and metals-enriched supergene manganese ore deposits have been discovered in the last two decades, making them more and more economically important. However, data on the timing and duration of their formation are sparse, mainly due to the difficulties extracting datable minerals suited to traditional radiometric dating methods. Hollandite, cryptomelane, coronadite, todorokite, and manjiroite are common manganese oxide minerals in supergene environments. These minerals host potassium of variable amounts from 0.1 wt% to 5.0 wt% in their structural sites. This geochemical property provides possibility to date supergene manganese ores by using K-Ar and 40Ar/39Ar methods. In this study, we perform 40Ar/39Ar dating on a 7.1-cm-thick botryoidal manganese nodule from an ancient weathering profile at Mount Tabor, central Queensland, Australia. Laser microprobe incremental analyses of distinct growth bands, from the inner core through the intermediate bands to the outermost crusts of the nodule, have yielded high quality 40Ar/39Ar ages at 27.3 Ma, 20.9 Ma, 19.2 Ma, and 16.1 Ma, respectively. The age results permit preliminary estimates on the average growth rates of the nodule varying from 4.7×10-3 mm/ka to 7.6×10-3 mm/ka to 9.0×10-3 mm/ka, from the core to the rim. Results of this study are of significance in our understanding of the mode, mechanism, process, and climatic conditions in the formation of supergene manganese ore deposits.

  19. 24 CFR 3280.107 - Interior privacy.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 5 2010-04-01 2010-04-01 false Interior privacy. 3280.107 Section 3280.107 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued... privacy. Bathroom and toilet compartment doors shall be equipped with a privacy lock....

  20. Solar Powered Automobile Interior Climate Control System

    Science.gov (United States)

    Howard, Richard T. (Inventor)

    2003-01-01

    There is provided a climate control system for a parked vehicle that includes a solar panel, thermostatic switch, fans, and thermoelectric coolers. The solar panel can serve as the sole source of electricity for the system. The system affords convenient installation and removal by including solar panels that are removably attached to the exterior of a vehicle. A connecting wire electrically connects the solar panels to a housing that is removably mounted to a partially opened window on the vehicle. The thermostatic switch, fans, and thermoelectric coolers are included within the housing. The thermostatic switch alternates the direction of the current flow through the thermoelectric coolers to selectively heat or cool the interior of the vehicle. The interior surface of the thermoelectric coolers are in contact with interior heat sinks that have air circulated across them by an interior fan. Similarly, the exterior surface of the thermoelectric coolers are in contact with exterior heat sinks that have air circulated across them by an exterior fan.

  1. Nonstatic vacuum strings: Exterior and interior solutions

    Energy Technology Data Exchange (ETDEWEB)

    Stein-Schabes, J.A.

    1986-06-15

    New nonstatic cylindrically symmetric solutions of Einstein's equations are presented. Some of these solutions represent stringlike objects. An exterior vacuum solution is matched to a nonvacuum interior solution for different forms of the energy-momentum tensor. They generalize the standard static string.

  2. Regulation of AR Degradation and Function by Ubiquitylation

    Science.gov (United States)

    2015-10-01

    STATEMENT Approved for Public Release; Distribution Unlimited 13. SUPPLEMENTARY NOTES 14. ABSTRACT The pathways that normally mediate AR...ligase (CHIP) may mediate the polyubiquitylation and proteasome degradation of AR that fails to fold appropriately and bind ligand. However, there are...pathways that normally mediate the ubiquitin dependent or independent degradation of AR, which might be targeted therapeutically, remain to be

  3. Antarlides: A New Type of Androgen Receptor (AR) Antagonist that Overcomes Resistance to AR-Targeted Therapy.

    Science.gov (United States)

    Saito, Shun; Fujimaki, Takahiro; Panbangred, Watanalai; Igarashi, Yasuhiro; Imoto, Masaya

    2016-02-18

    Prostate cancer is treated with androgen receptor (AR) antagonists but most patients experience disease progression after long-term treatment with these compounds. Therefore, new AR antagonists are required for patient follow-up treatment. In the course of screening for a new AR antagonist, we isolated the novel compounds antarlides A-E (1-5) from Streptomyces sp. BB47. Antarlides are mutually isomeric with respect to the double bond and have a 22-membered-ring macrocyclic structure. The full stereostructure of 1 was established by chemical modifications, including methanolysis, the Trost method, acetonide formation, and the PGME method. 1-5 inhibited the binding of androgen to ARs in vitro. In addition, 2 inhibited the transcriptional activity of not only wild-type AR but also mutant ARs, which are seen in patients with acquired resistance to clinically used AR antagonists. Therefore, antarlides are a potent new generation of AR antagonists that overcome resistance.

  4. Tracking fluid action in Little Sark Pluton (Channel Islands, UK): a UV laserprobe Ar/Ar study of excess 40Ar

    Science.gov (United States)

    Schwenzer, S. P.; Schwanethal, J.; Tindle, A. G.; Kelley, S. P.; Sherlock, S. C.

    2011-12-01

    Little Sark pluton (Channel Islands, UK) is a weakly to moderately deformed pluton of quartz diorite composition. Zircon from Little Sark has been dated as 611.4(+2.1/-1.3) Ma [Miller et al. 1991, Tectonophysics, 312], whereas titanite has an age of 606.2±0.6 Ma. Hornblende yields an Ar-Ar age of 606.4±3.4 Ma [Dallmeyer et al., 1991, J. Geol. Soc. London 148]. The rocks show evidence for post-magmatic hydrous alteration including chloritisation of biotite, and sericite formation in feldspar. We investigated the alteration in order to understand its influence on the Ar-Ar system. Detailed petrographic investigations of two samples indicate different deformation levels - S1, (less deformed), and S2 (more deformed). The feldspar is andesine to oligoclase in composition, but contains K-rich areas with patchy and sometimes cleavage guided sericitization. Mafic minerals include hornblende and biotite (the latter partially chloritized). Ar-Ar investigations were carried out using high spatial resolution UV laser ablation gas release in combination with a Nu instruments Noblesse gas mass spectrometer using spots of 80 to 140 μm diameter. Mafic minerals in S1 have highly variable 38Ar/39Ar and 37Ar/39Ar ratios and unusually high atmospheric contents for such old samples, possibly reflecting the presence of fluid inclusions associated with the sericite, particularly in the feldspar. The apparent ages in their entirety range from 429 to 668 Ma. Hornblende yields homogeneous apparent ages, whereas the younger and older ages are measured in both micas and feldspars, whose apparent ages range from 245-670 Ma. The modal age for feldspar is around 400-450 Ma, but this may not have geological meaning. Sample S2 shows many of the same features as S1. Mafic minerals span a slightly smaller age range and feldspars display apparent ages of ~245-645 Ma with a mode around 480 Ma. The alteration of both samples appears to have been accompanied by the introduction of 40Ar-rich fluids

  5. The thermal history of the Lhasa Block, South Tibetan Plateau based on FTD and Ar-Ar dating

    CERN Document Server

    Yang, T F; Lo Chong Huah; Chung, S L; Tien, R L; Xu, R; Deng, W

    1999-01-01

    Twelve basement samples were collected from South Tibet Plateau for FTD and Ar-Ar analysis to demonstrate their uplifting history since Cenozoic era. The preliminary results from different minerals with different closure temperatures, including apatite and zircon for fission-track dating, and K-feldspar, biotite for Ar-Ar dating, show that at least four stages of thermal history can be recognized in the studied area.

  6. Qualitative and quantitative assessment of interior moisture buffering by enclosures

    DEFF Research Database (Denmark)

    Janssen, Hans; Roels, Staf

    2009-01-01

    an alternative basis for quantitative evaluation of interior moisture buffering by the effective moisture penetration depth and effective capacitance models. The presented methodology uses simple and fast measurements only and can also be applied to multimaterial and/or multidimensional interior elements.......The significance of interior humidity in attaining sustainable, durable, healthy and comfortable buildings is increasingly recognised. Given their significant interaction, interior humidity appraisals need a qualitative and/or quantitative assessment of interior moisture buffering. While...

  7. Ar + NO microwave plasmas for Escherichia coli sterilization

    Energy Technology Data Exchange (ETDEWEB)

    Hueso, Jose L; Rico, Victor J; Cotrino, Jose; Gonzalez-Elipe, Agustin R [Instituto de Ciencia de Materiales de Sevilla, Centro Mixto CSIC-Universidad de Sevilla, Centro de Investigaciones Cientificas Isla de la Cartuja, Avda. Americo Vespucio 49, 41092 Sevilla (Spain); Frias, Jose E [Instituto de BioquImica Vegetal y FotosIntesis (IBVF-CSIC). Centro de Investigaciones CientIficas Isla de la Cartuja. Avda Americo Vespucio, 49, 41092 Sevilla (Spain)], E-mail: jhueso@icmse.csic.es

    2008-05-07

    Ar + NO microwave discharges are used for sterilization and the results are compared with additional experiments with Ar, O{sub 2} and N{sub 2}-O{sub 2} plasma mixtures. The NO{sup *} species produced in the Ar-NO mixtures remain up to long distances from the source, thus improving the sterilization efficiency of the process. E. coli individuals exposed to the Ar + NO plasma undergo morphological damage and cell lysis. Combined effects of etching (by O{sup *} and Ar{sup *} species) and UV radiation (from deactivation of NO{sup *} species) are responsible for the higher activity found for this plasma mixture. (fast track communication)

  8. Ar-Ar and Rb-Sr Ages of the Tissint Olivine-phyric Martian Shergottite

    Science.gov (United States)

    Park, J.; Herzog, G. F.; Nyquist, L. E.; Shih, C.-Y.; Turin, B.; Lindsay, F. N.; Delaney, J. S.; Swisher, C. C., III; Agee, C.

    2013-01-01

    The fifth martian meteorite fall, Tissint, is an olivine-phyric shergottite that contains olivine macrocrysts (approximately 1.5 mm) [1]. [2] reported the Sm-Nd age of Tissint as 596 plus or minus 23 Ma along with Rb-Sr data that defined no isochron. [3] reported Lu-Hf and Sm-Nd ages of 583 plus or minus 86 Ma and 616 plus or minus 67 Ma, respectively. The cosmic-ray exposure ages of Tissint are 1.10 plus or minus 0.15 Ma based on 10Be [4], and 1.0-1.1 Ma, based on 3He, 21Ne, and 38Ar [5,6].We report Ar-Ar ages and Rb-Sr data.

  9. Enseñar a ser

    OpenAIRE

    García Barreno, Pedro

    2004-01-01

    El «Informe Delors», cuyo texto fue presentado hace ahora diez años, señala que cualquier proyecto educativo para el siglo XXI debe contemplar dos acciones. «Enseñar a conocer, a hacer, a vivir juntos, a ser», y garantizar el acceso de todos a ello. El siglo que concluyó apenas media docena de años, ha estado cargado de inmensas paradojas: entre grandes males, extraordinarios logros y no pocas esperanzas inalcanzadas. Marcado por dos guerras mundiales, po...

  10. Iron opacity experiments for the solar interior

    Science.gov (United States)

    Nagayama, T.; Bailey, J. E.; Loisel, G.; Rochau, G. A.; Hansen, S. B.; Blancard, C.; Cosse, Ph.; Faussurier, G.; Gilleron, F.; Pain, J.-C.; Pradhan, A. K.; Orban, C.; Pinsonneault, M.; Nahar, S. N.; Iglesias, C. A.; Wilson, B.; Colgan, J.; Fontes, C.; Kilcrease, D.; Sherrill, M.; Macfarlane, J. J.; Golovkin, I.; Mancini, R. C.

    2014-10-01

    Iron opacity experiments near solar interior conditions are performed at SNL Z-machine to better constrain solar models. The SNL opacity science platform satisfies the many challenging requirements for opacity measurements and successfully determines iron opacities at multiple conditions. We found that the agreement between the modeled opacity and the measured opacity deteriorates as Te and ne are raised to approach solar interior conditions. While the inaccuracy of the modeled opacity partially resolves the solar abundance problem, the announcement of such discrepancies has a high impact on the astrophysics, atomic physics, and high energy density physics, and thus more scrutiny on the potential experimental flaws is critical. We report the synthetic investigation for potential sources of systematic uncertainties in the experiments. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract DE-AC04-94AL85000.

  11. Recent advances in modeling stellar interiors (u)

    Energy Technology Data Exchange (ETDEWEB)

    Guzik, Joyce Ann [Los Alamos National Laboratory

    2010-01-01

    Advances in stellar interior modeling are being driven by new data from large-scale surveys and high-precision photometric and spectroscopic observations. Here we focus on single stars in normal evolutionary phases; we will not discuss the many advances in modeling star formation, interacting binaries, supernovae, or neutron stars. We review briefly: (1) updates to input physics of stellar models; (2) progress in two and three-dimensional evolution and hydrodynamic models; (3) insights from oscillation data used to infer stellar interior structure and validate model predictions (asteroseismology). We close by highlighting a few outstanding problems, e.g., the driving mechanisms for hybrid {gamma} Dor/{delta} Sct star pulsations, the cause of giant eruptions seen in luminous blue variables such as {eta} Car and P Cyg, and the solar abundance problem.

  12. Predictions of mineral assemblages in planetary interiors

    Science.gov (United States)

    Stolper, E.

    1980-01-01

    It is shown that mineral compatibilities in the model system CaO-MgO-Al2O3-SiO2 can be applied to deduce the mineral assemblages expected in planetary interiors and their variation with depth. In general, the available estimates of bulk composition of the terrestrial planets suggest that the terrestrial planets can be divided into two groups based on their predicted mineral assemblages. The terrestrial, Venusian, and lunar bulk compositions are expected to display the following sequence of mineral assemblages with increasing pressure: plagioclase lherzolite, spinel lherzolite, and garnet lherzolite. The sequences expected in Martian and Mercurian are different: spinel-plagioclase wehrlite, spinel lherzolite, and spinel-garnet wehrlite. These assemblages have a major influence on the compositions of liquids produced by melting of these planetary interiors, on the solidus temperatures, and thus on the nature of planetary differentiation and the types of magmas extruded at planetary surfaces.

  13. Quantum state of the black hole interior

    Energy Technology Data Exchange (ETDEWEB)

    Brustein, Ram [Department of Physics, Ben-Gurion University,Beer-Sheva 84105 (Israel); Medved, A.J.M. [Department of Physics & Electronics, Rhodes University,Grahamstown 6140 (South Africa); National Institute for Theoretical Physics (NITheP),Western Cape 7602 (South Africa)

    2015-08-17

    If a black hole (BH) is initially in an approximately pure state and it evaporates by a unitary process, then the emitted radiation will be in a highly quantum state. As the purifier of this radiation, the state of the BH interior must also be in some highly quantum state. So that, within the interior region, the mean-field approximation cannot be valid and the state of the BH cannot be described by some semiclassical metric. On this basis, we model the state of the BH interior as a collection of a large number of excitations that are packed into closely spaced but single-occupancy energy levels; a sort-of “Fermi sea” of all light-enough particles. This highly quantum state is surrounded by a semiclassical region that lies close to the horizon and has a non-vanishing energy density. It is shown that such a state looks like a BH from the outside and decays via gravitational pair production in the near-horizon region at a rate that agrees with the Hawking rate. We also consider the fate of a classical object that has passed through to the BH interior and show that, once it has crossed over the near-horizon threshold, the object meets its demise extremely fast. This result cannot be attributed to a “firewall”, as the trauma to the in-falling object only begins after it has passed through the near-horizon region and enters a region where semiclassical spacetime ends but the energy density is still parametrically smaller than Planckian.

  14. Calidad ambiental interior: bienestar, confort y salud

    Directory of Open Access Journals (Sweden)

    Francisco Vargas Marcos

    2005-01-01

    Full Text Available Distintas formas de interpretar las condiciones ambientales han llevado al desarrollo de conceptos tales como edificio enfermo, calidad del aire o calidad ambiental interior, todos ellos encaminados a entender la complejidad de los contaminantes en los ambientes cerrados y las implicaciones sobre la salud de la población. La propuesta de "Calidad ambiental interior" es un avance conceptual y operativo que supera ampliamente a los anteriores, puesto que orienta las acciones hacia ambientes saludables sin limitar al aire la idea de contaminación. El objetivo del trabajo es identificar las competencias y el marco legislativo que permiten actuar en la prevención de riesgos asociados a la exposición de contaminantes en ambientes interiores. Óptimas condiciones en los ambientes interiores deben redundar en salud, bienestar y confort, tanto en lo que respecta a la vida laboral como a los ámbitos donde se desarrollan las actividades cotidianas extralaborales, escolares, de descanso y de ocio. La sociedad actual exige lugares seguros, limpios y bien climatizados, para lo que es necesario integrar percepciones y exigencias de los habitantes y alcanzar un óptimo equilibrio entre estándares sociales, uso de la energía y desarrollo sostenible, buscando confort sin contaminar y sin aumentar el consumo de fuentes energéticas que degraden el medio ambiente. El desarrollo legislativo se orienta a la seguridad y la salud en los lugares de trabajo y la regulación de las sustancias químicas. La Sanidad Ambiental lleva a cabo tareas de prevención y control, participa en la ejecución de convenios internacionales de reducción de contaminantes y desechos y promueve acciones para el desarrollo de la Estrategia Europea de Salud y Medio Ambiente.

  15. Quantum state of the black hole interior

    Science.gov (United States)

    Brustein, Ram; Medved, A. J. M.

    2015-08-01

    If a black hole (BH) is initially in an approximately pure state and it evaporates by a unitary process, then the emitted radiation will be in a highly quantum state. As the purifier of this radiation, the state of the BH interior must also be in some highly quantum state. So that, within the interior region, the mean-field approximation cannot be valid and the state of the BH cannot be described by some semiclassical metric. On this basis, we model the state of the BH interior as a collection of a large number of excitations that are packed into closely spaced but single-occupancy energy levels; a sort-of "Fermi sea" of all light-enough particles. This highly quantum state is surrounded by a semiclassical region that lies close to the horizon and has a non-vanishing energy density. It is shown that such a state looks like a BH from the outside and decays via gravitational pair production in the near-horizon region at a rate that agrees with the Hawking rate. We also consider the fate of a classical object that has passed through to the BH interior and show that, once it has crossed over the near-horizon threshold, the object meets its demise extremely fast. This result cannot be attributed to a "firewall", as the trauma to the in-falling object only begins after it has passed through the near-horizon region and enters a region where semiclassical spacetime ends but the energy density is still parametrically smaller than Planckian.

  16. Gravitational Higgs Mechanism in Neutron Star Interiors

    CERN Document Server

    Coates, Andrew; Sotiriou, Thomas P

    2016-01-01

    We suggest that nonminimally coupled scalar fields can lead to modifications of the microphysics in the interiors of relativistic stars. As a concrete example, we consider the generation of a non-zero photon mass in such high-density environments. This is achieved by means of a light gravitational scalar, and the scalarization phase transition in scalar-tensor theories of gravitation. Two distinct models are presented, and phenomenological implications are briefly discussed.

  17. Probe into the interior of compact stars

    CERN Document Server

    Nana, Pan

    2007-01-01

    The interior of neutron stars contains nuclear matter at very high density for numerous subatomic particles compete with each other. Therefore, confirming the components and properties there is our significant task. Here we summarize the possible methods especial the way of r-mode instability to probe into the neutron star and show our some results. The KHz pulsar in XTE J1739-285 may give a significant implication

  18. Interiors of the Planets [Book Review

    OpenAIRE

    Stevenson, D. J.

    1981-01-01

    The number of scientists devoted to the problems of planetary interiors (especially for planets other than the Earth) is small, appropriately so in view of the limited data base. However, the recent results from deep space missions together with recent rapid advances in high pressure physics are providing planetary modelers with well-constrained problems and solutions of limited ambiguity. These advances are important and interesting for a wide community of planetary and oth...

  19. Curious interior solutions of general relativity

    CERN Document Server

    Kozyrev, S M

    2010-01-01

    In this article, we provide a discussion on a composite class of exact static spherically symmetric vacuum solutions of Einstein's equations. We construct the composite solution of Einstein field equation by match the interior vacuum metric in Schwarzschild original gauge, to the exterior vacuum metric in isotropic gauge, at a junction surface. This approach allows us to associate rigorously with both gauges as a same "space", which is a unique differentiable manifold M^4

  20. Unveiling Turrialba (Costa Rica) volcano's latest geological evolution through new 40Ar/39Ar, ages

    Science.gov (United States)

    Ruiz Cubillo, P.; Turrin, B. D.; Soto, G. J.; Del Potro, R.; Gagnevin, D.; Gazel, E.; Mora Fernandez, M.; Carr, M. J.; Swisher, C. C.

    2010-12-01

    Step-heating 40Ar/39Ar dating experiments on whole rock matrix were performed on samples from eight key lava flow units from Turrialba, the easternmost volcano of the Central Volcanic Range of Costa Rica. Our results, together with available corrected 14C ages, recent mapping and new geochemical analyses, are part of a study to reconstruct Turrialba’s evolution. The project is being conducted as part of wider studies because of the increase in volcanic activity during the last three years. The geochemical compositions of the lava flow units span the range from basalts to dacites, and commonly have high K2O concentrations, making them good candidates for 40Ar/39Ar radiometric dating. The ages reported here correspond to the Paleo Turrialba (600-250 ka) and Neo Turrialba (< 250 ka) temporal stages. Sample TUR-38 (251 ± 4 ka) belongs to the latest unit of Paleo Turrialba stage, known as Finca Liebres volcano, while the remaining seven samples belong to Neo Turrialba: TUR-30 (99 ± 3 ka), TUR-19 (90 ± 4 ka), TUR-32 (62 ± 2 ka) TUR-33 (61 ± 2 ka), TUR-12 (25 ± 1.9 ka), TUR-36 (10 ± 3 ka) and TUR-08 (3 ± 3 ka). All the obtained ages in this study are in agreement with the local stratigraphy and prior 14C age determinations, adding robustness to our results. According to ages obtained and the areal distribution of the sampled units, the most important construction period of the massif was during the Neo-Turrialba stage which has passed through two important constructing episodes, around 100-60 ka and 10 ka-present. Although our results include some very young ages, all of them meet the established evaluation criteria used for plateau and isochron ages, commonly used for 40Ar/39Ar dating. Furthermore, we used a protocol that closely monitors the mass spectrometer mass discrimination during the measurements to provide additional control. Three of the eight 40Ar/39Ar ages reported here are remarkably young (25 ka or less). Two of those are the samples with the

  1. Quantum state of the black hole interior

    CERN Document Server

    Brustein, Ram

    2015-01-01

    If a black hole (BH) is initially in an approximately pure state and it evaporates by a unitary process, then the emitted radiation will be in a highly quantum state. As the purifier of this radiation, the state of the BH interior must also be in some highly quantum state. So that, within the interior region, the mean-field approximation cannot be valid and the state of the BH cannot be described by some semiclassical metric. On this basis, we model the state of the BH interior as a collection of a large number of excitations that are packed into closely spaced but single-occupancy energy levels; a sort-of "Fermi sea" of all light-enough particles. This highly quantum state is surrounded by a semiclassical region that lies close to the horizon and has a non-vanishing energy density. It is shown that such a state looks like a BH from the outside and decays via gravitational pair production in the near-horizon region at a rate that agrees with the Hawking rate. We also consider the fate of a classical object th...

  2. Influence of ethanol and morphine on pain perception evoked by deep tissue injury A influência do etanol e da morfina sobre a percepção dolorosa provocada por injúria tecidual profunda

    Directory of Open Access Journals (Sweden)

    Gustavo Hauber Gameiro

    2004-09-01

    Full Text Available The aim of this study was to evaluate the effect of ethanol and morphine on nociceptive behavioral responses evoked by the injection of formalin into the temporomandibular joint region of rats (the TMJ formalin test. In experiment 1, animals were given an ethanol solution (6.5% or tap water to drink for 4 and 10 days, before the procedure for TMJ pain. In the group treated for 4 days, significant analgesia was observed in the TMJ formalin test, whereas the group treated for 10 days did not show this effect, revealing the development of tolerance to ethanol antinociceptive effects. In experiment 2, animals were submitted to chronic regimen of ethanol (6.5% for 10 days and the control group was given tap water to drink. After this period, morphine (10 mg/kg i.p. was administrated 30 minutes before the TMJ formalin test. Morphine had the same analgesic effect in both groups, showing that the treatment with ethanol was not able to alter the analgesic potency of morphine. The results showed that ethanol can affect nociceptive behavioral responses related to pain from deep tissues, like the TMJ, and the absence of interaction between ethanol and morphine suggest that ethanol-induced analgesia was mediated by nonopiate mechanisms.O objetivo deste estudo foi avaliar o efeito do etanol e da morfina sobre as respostas comportamentais nociceptivas provocadas pelo teste da formalina na ATM de ratos (Teste da formalina na ATM. No experimento 1, os animais receberam uma solução de etanol 6,5 % ou água comum para beber durante 4 e 10 dias, antes da realização do teste da formalina na ATM. No grupo tratado por 4 dias, observou-se analgesia significativa ao teste da formalina, enquanto que no grupo tratado por 10 dias esse efeito não ocorreu, demonstrando o desenvolvimento de tolerância aos efeitos antinociceptivos do etanol. No experimento 2, os animais foram submetidos ao regime crônico de etanol (6,5% por 10 dias e o grupo controle recebeu água comum

  3. The role of mitochondrial fusion and StAR phosphorylation in the regulation of StAR activity and steroidogenesis.

    Science.gov (United States)

    Castillo, Ana F; Orlando, Ulises; Helfenberger, Katia E; Poderoso, Cecilia; Podesta, Ernesto J

    2015-06-15

    The steroidogenic acute regulatory (StAR) protein regulates the rate-limiting step in steroidogenesis, i.e. the delivery of cholesterol from the outer (OMM) to the inner (IMM) mitochondrial membrane. StAR is a 37-kDa protein with an N-terminal mitochondrial targeting sequence that is cleaved off during mitochondrial import to yield 30-kDa intramitochondrial StAR. StAR acts exclusively on the OMM and its activity is proportional to how long it remains on the OMM. However, the precise fashion and the molecular mechanism in which StAR remains on the OMM have not been elucidated yet. In this work we will discuss the role of mitochondrial fusion and StAR phosphorylation by the extracellular signal-regulated kinases 1/2 (ERK1/2) as part of the mechanism that regulates StAR retention on the OMM and activity.

  4. Behavior of argon gas release from manganese oxide minerals as revealed by 40Ar/39Ar laser incremental heating analysis

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    Manganese oxides in association with paleo- weathering may provide significant insights into the multiple factors affecting the formation and evolution of weathering profiles, such as temperature, precipitation, and biodiversity. Laser probe step-heating analysis of supergene hollandite and cryptomelane samples collected from central Queensland, Australia, yield well-defined plateaus andconsistent isochron ages, confirming the feasibility dating very-fined supergene manganese oxides by 40Ar/39Ar technique. Two distinct structural sites hostingAr isotopes can be identified in light of their degassing behaviors obtained byincremental heating analyses. The first site, releasing its gas fraction at thelaser power 0.2-0.4 W, yields primarily 40Aratm, 38Aratm, and 36Aratm (atmospheric Ar isotopes). The second sites yield predominantly 40Ar* (radiogenic 40Ar),39ArK, and 38ArK (nucleogenic components), at ~0.5-1.0 W. There is no significant Ar gas released at the laser power higher than 1.0 W, indicating the breakdown of the tunnel sites hosting the radiogenic and nucleogenic components. The excellent match between the degassing behaviors of 40Ar*, 39ArK, and 38ArK suggests that these isotopes occupy the same crystallographic sites and that 39ArK lossfrom the tunnel site by recoil during neutron irradiation and/or bake-out procedure preceding isotopic analysis does not occur. Present investigation supports that neither the overwhelming atmospheric 40Ar nor the very-fined nature of the supergene manganese oxides poses problems in extracting meaningful weathering geochronological information by analyzing supergene manganese oxides minerals.

  5. Astronomical calibration of 40Ar/39Ar reference minerals using high-precision, multi-collector (ARGUSVI) mass spectrometry

    Science.gov (United States)

    Phillips, D.; Matchan, E. L.; Honda, M.; Kuiper, K. F.

    2017-01-01

    The new generation of multi-collector mass spectrometers (e.g. ARGUSVI) permit ultra-high precision (1%) in 40K decay constants and the ages of natural reference minerals that form the basis of the technique. For example, reported ages for widely used 40Ar/39Ar reference materials, such as the ca. 28 Ma Fish Canyon Tuff sanidine (FCTs) and the ca. 1.2 Ma Alder Creek Rhyolite sanidine (ACRs), vary by >1%. Recent attempts to independently calibrate these reference minerals have focused on K-Ar analyses of the same minerals and inter-comparisons with astronomically tuned tephras in sedimentary sequences and U-Pb zircon ages from volcanic rocks. Most of these studies used older generation (effectively single-collector) mass spectrometers that employed peak-jumping analytical methods to acquire 40Ar/39Ar data. In this study, we reassess the inter-calibration and ages of commonly used 40Ar/39Ar reference minerals Fish Canyon Tuff sanidine (FCTs), Alder Creek Rhyolite sanidine (ACRs) and Mount Dromedary biotite (MD2b; equivalent to GA-1550 biotite), relative to the astronomically tuned age of A1 Tephra sanidine (A1Ts), Faneromeni section, Crete (Rivera et al., 2011), using a multi-collector ARGUSVI mass spectrometer. These analyses confirm the exceptional precision capability (0.1% in the 40Ar/39Ar ages of reference minerals without consideration of recoil artefacts, thus limiting the benefits of high precision multi-collector analyses. Significant improvement to the accuracy of the 40Ar/39Ar method (<0.1%) will require further inter-laboratory 40Ar/39Ar studies utilizing multi-collector mass spectrometry, additional constraints on recoil 39ArK loss from reference minerals, further resolution of discrepancies between astronomically tuned sedimentary successions and refinement of the 238U/206Pb zircon age cross-calibration approach.

  6. New high-precision 40Ar/39Ar ages on Oligocene volcanic rocks of northwestern Kenya

    Science.gov (United States)

    Brown, Francis H.; Jicha, Brian R.

    2016-02-01

    New, high-precision 40Ar/39Ar ages from volcanic rocks in northwestern Kenya are provided for some areas of exposure in this remote area. We report seven 40Ar/39Ar ages generated from single crystal total fusion experiments on alkali feldspar separated from volcanic rocks in the Mogila, Songot, and Lokwanamur Ranges and the Gatome valley. A rhyolite from the lower part of the sequence in the Mogila Range yielded ages of 32.31 ± 0.06 Ma and 32.33 ± 0.07 Ma, and a rhyolite near the top of that sequence yielded 31.67 ± 0.04 Ma. A single sample from the Songot Range yielded an age of 32.49 ± 0.07 Ma, slightly older than the rocks collected from Mogila. In both ranges the early Oligocene rhyolites are underlain by basalts, as is also the case in the Labur Range. Ages of 25.95 ± 0.03 Ma, 25.91 ± 0.04 Ma, and 27.15 ± 0.03 Ma were measured on alkali feldspar from rhyolites from the Lokwanamur Range, and the nearby Gatome valley. All of these rocks are part of an episode of widespread volcanism in northwestern Kenya in the mid-to late Oligocene that is not currently known from the Ethiopian Rift Valley.

  7. Identification of an AR mutation-negative class of androgen insensitivity by determining endogenous AR activity

    NARCIS (Netherlands)

    Hornig, N.C.; Ukat, M.; H.U. Schweikert (H.); O. Hiort (Olaf); Werner, R.; S.L.S. Drop (Stenvert); M.L. Cools (Martine); I.A. Hughes (Ieuan A.); L. Audí (Laura); S.F. Ahmed (S. Faisal); Demiri, J.; Rodens, P.; Worch, L.; Wehner, G.; Kulle, A.E.; Dunstheimer, D.; Müller-Roßberg, E.; T. Reinehr (Thomas); Hadidi, A.T.; Eckstein, A.K.; Van Der Horst, C.; Seif, C.; R. Siebert (Reiner); O. Ammerpohl (Ole); P-M. Holterhus (Paul-Martin)

    2016-01-01

    textabstractContext: Only approximately 85%of patients with a clinical diagnosis complete androgen insensitivity syndrome and less than 30%with partial androgen insensitivity syndrome can be explained by inactivating mutations in the androgen receptor (AR) gene. Objective: The objective of the study

  8. A method for intercalibration of U-Th-Pb and 40Ar- 39Ar ages in the Phanerozoic

    Science.gov (United States)

    Villeneuve, Mike; Sandeman, Hamish A.; Davis, William J.

    2000-12-01

    The increasing analytical precision of 40Ar- 39Ar geochronological data and its use in studies that combine U-Pb and 40Ar- 39Ar data has necessitated derivation of a means to intercalibrate ages between the two isotopic systems. The primary determinants inhibiting accurate cross calibration are uncertainty in decay constant values and uncertainty in 40Ar∗/ 40K (usually presented as apparent age) for 40Ar- 39Ar standards, notably those derived from the Fish Canyon Tuff. By utilizing a monazite- and biotite bearing Oligocene ash flow tuff (MAC-83) as the primary standard material, precise U-Th-Pb and 40Ar- 39Ar ages can be derived. Because both isotopic systems should reflect closure during the instantaneous eruption event, the 24.21 ± 0.10 Ma 207Pb/ 235U age should match the age resulting from 40Ar- 39Ar biotite analysis. This forced equivalence will partly offset the effects of decay constant uncertainty. Furthermore, by co-irradiating Fish Canyon Tuff sanidine with MAC-83 biotite, the apparent age for Fish Canyon Tuff sanidine is back-calculated to 27.98 ± 0.15 Ma, relative to the MAC-83 207Pb/ 235U age. Hence, intercalibration between the two isotopic systems in a relative sense can be accomplished, allowing for a direct and valid comparison of ages. It is also shown that forcing equivalence of the two isotopic systems minimizes the effect of decay constant uncertainty for samples of Phanerozoic age.

  9. Identification and analysis of ARS function of six plant MARs

    Institute of Scientific and Technical Information of China (English)

    LI Hong; YANG Yutao; ZHANG Kewei; ZHENG Chengchao

    2004-01-01

    Six plant MARs isolated from tobacco and Arabdiposis were investigated for their ARS activity in yeast.The results showed that among the six plant MARs, only TM1 and AM4 had strong ARS activity which was almost the same as that of ARS from yeast chromosome. In order to further identify the core region of the two MARs for the ARS activity, a series of subclones were created by PCR strategy,and the corresponding subclones were designated as TM1-1,TM1-2, TM1-3, AM4-1, AM4-2 and AM4-3, respectively. Our studies revealed that TM1-3 and AM4-3 not only had higher ARS activity, but also displayed higher transformation frequency, plasmid stability and growth rate compared to their intact MARs, TM1 and AM4. These data present an important clue for further elucidating the relationship between MAR and ARS.

  10. Tidal constraints on the interior of Venus

    Science.gov (United States)

    Dumoulin, Caroline; Tobie, Gabriel; Verhoeven, Olivier; Rosenblatt, Pascal; Rambaux, Nicolas

    2016-10-01

    As a prospective study for a future exploration of Venus, we propose to systematically investigate the signature of the internal structure in the gravity field and the rotation state of Venus, through the determination of the moment of inertia and the tidal Love number.We test various mantle compositions, core size and density as well as temperature profiles representative of different scenarios for formation and evolution of Venus. The mantle density ρ and seismic vP and vS wavespeeds are computed in a consistent manner from given temperature and composition using the Perple X program. This method computes phase equilibria and uses the thermodynamics of mantle minerals developped by Stixrude and Lithgow-Bertelloni (2011).The viscoelastic deformation of the planet interior under the action of periodic tidal forces are computed following the method of Tobie et al. (2005).For a variety of interior models of Venus, the Love number, k2, and the moment of inertia factor are computed following the method described above. The objective is to determine the sensitivity of these synthetic results to the internal structure. These synthetic data are then used to infer the measurement accuracies required on the time-varying gravitational field and the rotation state (precession rate, nutation and length of day variations) to provide useful constraints on the internal structure.We show that a better determination of k2, together with an estimation of the moment of inertia, the radial displacement, and of the time lag, if possible, will refine our knowledge on the present-day interior of Venus (size of the core, mantle temperature, composition and viscosity). Inferring these quantities from a future ex- ploration mission will provide essential constraints on the formation and evolution scenarios of Venus.

  11. Enseñar a ser

    Directory of Open Access Journals (Sweden)

    García Barreno, Pedro

    2004-09-01

    Full Text Available El «Informe Delors», cuyo texto fue presentado hace ahora diez años, señala que cualquier proyecto educativo para el siglo XXI debe contemplar dos acciones. «Enseñar a conocer, a hacer, a vivir juntos, a ser», y garantizar el acceso de todos a ello. El siglo que concluyó apenas media docena de años, ha estado cargado de inmensas paradojas: entre grandes males, extraordinarios logros y no pocas esperanzas inalcanzadas. Marcado por dos guerras mundiales, por genocidios, por la acelerada degradación de la biosfera o por la miseria de una masa de marginados frente al creciente bienestar de los privilegiados.…

  12. Perspectives on the Interior of the Sun

    Indian Academy of Sciences (India)

    S. Μ. Chitre

    2000-09-01

    The interior of the Sun is not directly accessible to observations. Nonetheless, it is possible to infer the physical conditions inside the Sun with the help of structure equations governing its equilibrium and with the powerful observational tools provided by the neutrino fluxes and oscillation frequencies. The helioseismic data show that the internal constitution of the Sun can be adequately represented by a standard solar model. It turns out that a cooler solar core is not a viable solution for the measured deficit of neutrino fluxes, and the resolution of the solar neutrino puzzle should be sought in the realm of particle physics.

  13. Interior Structure and Tidal Response of Mercury

    Science.gov (United States)

    Steinke, Teresa; Sohl, Frank; Hussmann, Hauke; Knapmeyer, Martin; Wagner, Frank Walter

    2013-04-01

    Recent determinations of Mercury's mean density, polar moment of inertia factor, and the inertia of its solid outer shell provide strong constraints on the radius of its liquid core. We present an ensemble of spherically symmetric interior structure models that all satisfy the observational constraints. The models consist of a pure iron solid inner core, a liquid Fe-FeS outer core, a peridotite mantle and a crust predominantly composed of plagioclase. The sulfur content in the outer core, the iron and magnesium content of the mantle, and the crustal thickness vary throughout the ensemble. Comparison of observed and predicted moments of inertia yields admissible ranges for the outer core radius and the mantle density. From this model ensemble we derive geophysical observables that would allow further constraining the interior structure of Mercury in future experiments. The moment of inertia constraints allow for both forsterite and fayalite rich mantle compositions. Variations of mantle density trade off with crustal thickness and core composition. This non-uniqueness could be resolved using seismic travel time observations: since the P wave velocity of a fayalite mantle is significantly lower than that of the plagioclase-rich crust, a shadow zone arises as a clear discriminant between the two end-member compositions. The planet's response to solar tidal forcing strongly depends on its interior structure and rheological properties and can be parameterized in terms of the surface body tide Love numbers k2 and h2, respectively. We employ the frequency-dependent Maxwell rheology to calculate the body tide Love numbers for the main tidal period (87.97 days) using the density, rigidity and viscosity profiles of our structural models. We obtain values between 0.38 and 0.65 for k2 and between 0.70 and 1.12 for h2, respectively, thereby indicating the substantial tidal response of Mercury's interior. Furthermore we find that, via viscosity and rigidity, both k2 and h2 are

  14. Burning and browsing effects on willow growth in interior Alaska

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The dominant species in mature forests of interior Alaska is either white spruce (Picea glauca} or black spruce (P. mariana), with wood shrubs present at lower...

  15. Avian populations and habitat use in interior Alaska taiga

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Avian community structure, habitat occupancy levels, and species habitat use patterns were examined in the woody habitats of interior Alaska taiga. Some birds...

  16. Plasma AR and abiraterone-resistant prostate cancer.

    Science.gov (United States)

    Romanel, Alessandro; Gasi Tandefelt, Delila; Conteduca, Vincenza; Jayaram, Anuradha; Casiraghi, Nicola; Wetterskog, Daniel; Salvi, Samanta; Amadori, Dino; Zafeiriou, Zafeiris; Rescigno, Pasquale; Bianchini, Diletta; Gurioli, Giorgia; Casadio, Valentina; Carreira, Suzanne; Goodall, Jane; Wingate, Anna; Ferraldeschi, Roberta; Tunariu, Nina; Flohr, Penny; De Giorgi, Ugo; de Bono, Johann S; Demichelis, Francesca; Attard, Gerhardt

    2015-11-01

    Androgen receptor (AR) gene aberrations are rare in prostate cancer before primary hormone treatment but emerge with castration resistance. To determine AR gene status using a minimally invasive assay that could have broad clinical utility, we developed a targeted next-generation sequencing approach amenable to plasma DNA, covering all AR coding bases and genomic regions that are highly informative in prostate cancer. We sequenced 274 plasma samples from 97 castration-resistant prostate cancer patients treated with abiraterone at two institutions. We controlled for normal DNA in patients' circulation and detected a sufficiently high tumor DNA fraction to quantify AR copy number state in 217 samples (80 patients). Detection of AR copy number gain and point mutations in plasma were inversely correlated, supported further by the enrichment of nonsynonymous versus synonymous mutations in AR copy number normal as opposed to AR gain samples. Whereas AR copy number was unchanged from before treatment to progression and no mutant AR alleles showed signal for acquired gain, we observed emergence of T878A or L702H AR amino acid changes in 13% of tumors at progression on abiraterone. Patients with AR gain or T878A or L702H before abiraterone (45%) were 4.9 and 7.8 times less likely to have a ≥50 or ≥90% decline in prostate-specific antigen (PSA), respectively, and had a significantly worse overall [hazard ratio (HR), 7.33; 95% confidence interval (CI), 3.51 to 15.34; P = 1.3 × 10(-9)) and progression-free (HR, 3.73; 95% CI, 2.17 to 6.41; P = 5.6 × 10(-7)) survival. Evaluation of plasma AR by next-generation sequencing could identify cancers with primary resistance to abiraterone.

  17. Space station interior design: Results of the NASA/AIA space station interior national design competition

    Science.gov (United States)

    Haines, R. F.

    1975-01-01

    The results of the NASA/AIA space station interior national design competition held during 1971 are presented in order to make available to those who work in the architectural, engineering, and interior design fields the results of this design activity in which the interiors of several space shuttle size modules were designed for optimal habitability. Each design entry also includes a final configuration of all modules into a complete space station. A brief history of the competition is presented with the competition guidelines and constraints. The first place award entry is presented in detail, and specific features from other selected designs are discussed. This is followed by a discussion of how some of these design features might be applied to terrestrial as well as space situations.

  18. Practical reactor production of {sup 41}Ar from argon clathrate

    Energy Technology Data Exchange (ETDEWEB)

    Mercer, J.R. E-mail: jmercer@pharmacy.ualberta.ca; Duke, M.J.M.; McQuarrie, S.A

    2000-06-01

    The radionuclide {sup 41}Ar has many ideal properties as a gas flow tracer. However, the modest cross-section of {sup 40}Ar for thermal neutron activation makes preparation of suitable activities of {sup 41}Ar technically difficult particularly for low flux reactors. Argon can however be trapped in a molecular complex called a clathrate that can then be irradiated. We prepared argon clathrate and explored its irradiation and stability characteristics. Argon clathrate can be used to provide gigabecquerel quantities of {sup 41}Ar even with low power reactors.

  19. 24 CFR 3285.803 - Interior close-up.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 5 2010-04-01 2010-04-01 false Interior close-up. 3285.803 Section... DEVELOPMENT MODEL MANUFACTURED HOME INSTALLATION STANDARDS Exterior and Interior Close-Up § 3285.803 Interior close-up. (a) All shipping blocking, strapping, or bracing must be removed from appliances, windows,...

  20. Interior structure models of GJ 436b

    CERN Document Server

    Nettelmann, N; Redmer, R; Neuhaeuser, R

    2010-01-01

    GJ436b is the first extrasolar planet discovered that resembles Neptune in mass and radius, two more are known (HAT-P-11b and Kepler-4b), and many more are expected to be found in the upcoming years. The particularly interesting property of Neptune-sized planets is that their mass Mp and radius Rp are close to theoretical M-R relations of water planets. Given Mp, Rp, and equilibrium temperature however, various internal compositions are possible. A broad set of interior structure models is presented here that illustrates the dependence of internal composition and possible phases of water in presumably water-rich planets such as GJ436b on the uncertainty in atmospheric temperature profile and mean density. We model the interior by assuming either three layers (hydrogen-helium envelope, water layer, rock core) or two layers (H/He/H2O envelope, rocky core). For water we use the equation of state H2O-REOS based on FT-DFT-MD. Some admixture of H/He appears mandatory for explaining the measured radius. In case of t...

  1. Department of the Interior Climate Science Centers

    Science.gov (United States)

    Jones, Sonya A.

    2011-01-01

    What is a Climate Science Center? On September 14, 2009, the Secretary of the Interior signed a Secretarial Order (No. 3289) entitled, "Addressing the Impacts of Climate Change on America's Water, Land, and Other Natural and Cultural Resources." The Order effectively established the U.S. Department of the Interior (DOI) Climate Science Centers (CSCs), which will integrate DOI science and management expertise with similar contributions from our partners to provide information to support adaptation and mitigation efforts on both public and private lands, across the United States and internationally.The Southeast CSC, hosted by NC State University (NCSU), will collaborate with a number of other universities, State and Federal agencies, and nongovernmental organizations (NGOs) with interest and expertise in climate science. The primary partner for the Southeast CSC will be the Landscape Conservation Cooperatives (LCCs) in the Southeast, including the Appalachian, Gulf Coastal Plains and Ozarks, Gulf Coast Prairie, Peninsular Florida, and the South Atlantic. CSC collaborations are focused on common science priorities, addressing priority partner needs, minimizing redundancies in science, sharing scientific findings, and expanding understanding of climate change impacts in the Southeast.

  2. Estudo exploratorio da qualidade do ar em escolas de educacao basica, Coimbra, Portugal

    Directory of Open Access Journals (Sweden)

    Ana Maria Conceicao Ferreira

    2013-12-01

    Full Text Available OBJETIVO : Analisar a qualidade do ar em escolas de educação básica e suas condições estruturais e funcionais. MÉTODOS : Foi avaliada a qualidade do ar de 51 escolas (81 salas de aula de educação básica da cidade de Coimbra, Portugal, tanto na parte interior das salas como na exterior, durante as quatro estações do ano, de 2010 a 2011. Foram avaliadas a temperatura (Tº, umidade relativa (Hr, concentrações de monóxido de carbono (CO, dióxido de carbono (CO 2 , ozona (O 3 , dióxido de nitrogênio (NO 2 , dióxido de enxofre (SO 2 , compostos orgânicos voláteis (COV, formaldeído e material particulado (PM 10 , de novembro de 2010 a fevereiro de 2011 (outono/inverno e de março de 2011 a junho de 2011 (primavera/verão. Procedeu-se ao preenchimento de uma grelha de caracterização das condições estruturais e funcionais das escolas. Aplicaram-se os testes estatísticos t- Student para amostras emparelhadas e o teste t de Wilcoxon. RESULTADOS : Em 47 escolas, as concentrações médias de CO 2 encontravam-se acima da concentração máxima de referência (984 ppm mencionada na legislação portuguesa. Os valores máximos de concentração encontrados no interior das salas foram críticos, principalmente no outono/inverno (5.320 ppm. As concentrações médias de COV e de PM 10 no interior ultrapassaram a concentração máxima de referência legislada em algumas escolas. Não foram detetados valores relevantes (risco de CO, formaldeído, NO 2 , SO 2 e O 3 . CONCLUSÕES : Houve maior concentração de poluentes no interior das salas, comparativamente com o exterior. A inadequada ventilação está associada à elevada concentração de CO 2 nas salas de aula.

  3. 40Ar-39Ar age of carbonatite-alkaline magmatism in Sung Valley, Maghalaya, India

    Indian Academy of Sciences (India)

    Jyotiranjan S Ray; Kanchan Pande

    2001-09-01

    40Ar-39Ar analyses of one alkali pyroxenite whole rock and two phlogopite separates of calcite carbonatites from the Sung Valley carbonatite-alkaline complex, which is believed to be a part of the Rajmahal-Bengal-Sylhet (RBS) ood basalt province, yielded indistinguishable plateau ages of 108.8 ± 2.0 Ma, 106:4 ± 1.3 Ma and 107.5 ± 1.4 Ma, respectively. The weighted mean of these ages, 107.2 ± 0.8 Ma, is the time of emplacement of this complex. This implies that Sung Valley complex and probably other such complexes in the Assam-Meghalaya Plateau postdate the main ood basalt event (i.e., the eruption of tholeiites) in the RBS province by ∼10 Ma.

  4. 40Ar/39Ar dates from the West Siberian Basin: Siberian flood basalt province doubled.

    Science.gov (United States)

    Reichow, Marc K; Saunders, Andrew D; White, Rosalind V; Pringle, Malcolm S; Al'Mukhamedov, Alexander I; Medvedev, Alexander I; Kirda, Nikolay P

    2002-06-07

    Widespread basaltic volcanism occurred in the region of the West Siberian Basin in central Russia during Permo-Triassic times. New 40Ar/39Ar age determinations on plagioclase grains from deep boreholes in the basin reveal that the basalts were erupted 249.4 +/- 0.5 million years ago. This is synchronous with the bulk of the Siberian Traps, erupted further east on the Siberian Platform. The age and geochemical data confirm that the West Siberian Basin basalts are part of the Siberian Traps and at least double the confirmed area of the volcanic province as a whole. The larger area of volcanism strengthens the link between the volcanism and the end-Permian mass extinction.

  5. Acoustic resonance spectroscopy (ARS): ARS300 operations manual, software version 2.01

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-07-25

    Acoustic Resonance Spectroscopy (ARS) is a nondestructive evaluation technology developed at the Los Alamos National Laboratory. The ARS technique is a fast, safe, and nonintrusive technique that is particularly useful when a large number of objects need to be tested. Any physical object, whether solid, hollow, or fluid filled, has many modes of vibration. These modes of vibration, commonly referred to as the natural resonant modes or resonant frequencies, are determined by the object`s shape, size, and physical properties, such as elastic moduli, speed of sound, and density. If the object is mechanically excited at frequencies corresponding to its characteristic natural vibrational modes, a resonance effect can be observed when small excitation energies produce large amplitude vibrations in the object. At other excitation frequencies, i.e., vibrational response of the object is minimal.

  6. Cooling age of Dabie orogen, China, determined by 40Ar-39Ar and fission track techniques

    Institute of Scientific and Technical Information of China (English)

    陈江峰; 谢智; 刘顺生; 李学明; K.A.Foland

    1995-01-01

    Based on 40Ar-39Ar results of hornblendes and biotites and fission track dating results of apatites separated from the same rock samples, cooling history of rocks from Dabie orogen is discussed. Rocks from both Southern Dabie Terrain (SDT) and Northern Dabie Terrain (NDT) have an early fast cooling followed by a more recent slow cooling. Rocks from SDT cooled to about 540℃ at about 190 Ma B.C., while rocks from NDT cooled to about 540℃ at 125 Ma B C. Until about 110-120 Ma B.C., rocks from both SDT and NDT cooled to about 100℃. This suggests that a relative movement among rocks from SDT, NDT and ul-Ira-high pressure metamorphic rocks exis-ts before 110-120 Ma B.C.

  7. Laser step-heating 40Ar/39Ar dating on young volcanic rocks

    Institute of Scientific and Technical Information of China (English)

    WANG Fei; HE Huaiyu; ZHU Rixiang; YANG Liekun; SANG Haiqing; WANG Yinglan

    2006-01-01

    An attempt was made to use CO2 laser step-heating method to date the late Pleistocene basaltic groundmass (DF-2) from Tengchong volcanic field. Among the fourteen heating steps, ten define a good inverse isochron (MSWD = 1.4) with an age of 32.2 ± 7.1 ka (2 σ).The inverse isochron also shows that the initial argon isotopic ratio is 297.1±2.0 (2σ)which is the same as the atmospheric argon at the 2σ error level. Study indicates that it is a useful means to date young volcanic groundmass with low K content by using CO2 laser step-heating 40Ar/39Ar method.

  8. Spatial autocorrelation method using AR model; Kukan jiko sokanho eno AR model no tekiyo

    Energy Technology Data Exchange (ETDEWEB)

    Yamamoto, H.; Obuchi, T.; Saito, T. [Iwate University, Iwate (Japan). Faculty of Engineering

    1996-05-01

    Examination was made about the applicability of the AR model to the spatial autocorrelation (SAC) method, which analyzes the surface wave phase velocity in a microtremor, for the estimation of the underground structure. In this examination, microtremor data recorded in Morioka City, Iwate Prefecture, was used. In the SAC method, a spatial autocorrelation function with the frequency as a variable is determined from microtremor data observed by circular arrays. Then, the Bessel function is adapted to the spatial autocorrelation coefficient with the distance between seismographs as a variable for the determination of the phase velocity. The result of the AR model application in this study and the results of the conventional BPF and FFT method were compared. It was then found that the phase velocities obtained by the BPF and FFT methods were more dispersed than the same obtained by the AR model. The dispersion in the BPF method is attributed to the bandwidth used in the band-pass filter and, in the FFT method, to the impact of the bandwidth on the smoothing of the cross spectrum. 2 refs., 7 figs.

  9. Fatores de risco para recidiva após tratamento de lesões provocadas pelo HPV no trato genital feminino Risk factors for relapse of HPV-induced lesions of the female genital tract

    Directory of Open Access Journals (Sweden)

    Heitor Ricardo Cosiski Marana

    1999-05-01

    Full Text Available Objetivos: avaliação de fatores de risco [grau da lesão e associação com o vírus da imunodeficiência adquirida tipo 1 (HIV-1 e gestação] para recidiva após tratamento de lesões provocadas pelo papilomavírus humano (HPV no trato genital feminino. Material e métodos: foram avaliadas 70 pacientes com diagnóstico clínico, colposcópico e citológico de infecção pelo HPV. O seguimento clínico foi de no mínimo 6 meses após o tratamento inicial, possibilitando avaliar os resultados terapêuticos. Neste grupo, 26 pacientes eram grávidas, sendo 12 com sorologia positiva para o HIV-1. As 44 pacientes restantes encontravam-se fora do período gravídico-puerperal, sendo que destas, 14 eram contaminadas pelo HIV-1. Segundo os critérios citológicos as lesões de colo foram classificadas em alterações associadas ao HPV ou neoplasia intra-epitelial cervical (NIC graus I (lesões de baixo grau ou NIC II/III (lesões de alto grau. A análise estatística foi realizada pelo teste exato de Fisher com nível de significância para pPurpose: evaluation of the risk factors [lesion grade, seropositivity for type 1 acquired immunodeficiency virus (HIV-1 and association with pregnancy ] for relapse of human papillomavirus (HPV induced lesions of the female genital tract. Patients and Methods: seventy patients with a clinical, colposcopic and cytologic diagnosis of HPV infection were studied. Clinical follow-up lasted at least 6 months after the initial treatment, thus permitting the evaluation of the therapeutic results. Twenty-seven of these patients were pregnant and 12 were seropositive for HIV-1. The remaining 44 patients were not in the pregnancy-puerperium cycle and 14 of them were HIV-1 positive. According to cytologic criteria, the cervical lesions were classified as changes associated with HPV or grade I cervical intraepithelial neoplasia (CIN I (low grade lesions or CIN II/III (high grade lesions. Data were analyzed statistically by

  10. Efeito de ciclos de umidade relativa e temperatura do ar na resistência de juntas colodas com lâminas de Eucalyptus grandis W. Hill ex Maiden, Eucalyptus saligna Smith e chapas de fibra de densidade média (MDF Air relative humidity and temperature cycle effects on the resistence of glued joints between bords of Eucalyptus grandis, Eucalyptus saligna and medium density fiberbord (MDF

    Directory of Open Access Journals (Sweden)

    Benedito Rocha Vital

    2005-10-01

    Full Text Available Este trabalho teve como objetivo avaliar o efeito de ciclos de umidade relativa e temperatura do ar na resistência da linha de cola, em juntas coladas entre lâminas de madeira de Eucalyptus grandis, Eucalyptus saligna e lâminas de chapa de fibras de média densidade (MDF cujas densidades foram iguais a 0,60, 0,66, e 0,72g/cm³, respectivamente. Foram empregados adesivos de poliacetato de média viscosidade e uréia-formaldeído nas gramaturas de 150,0g/m² e 180,0g/m², respectivamente, em face simples. O teor médio de umidade no momento da colagem foi igual a 14%. Foram observadas diferenças significativas tanto na resistência da linha de cola quanto na percentagem de falha na madeira provocada pela composição das amostras, etapa de equilíbrio e tipo de adesivo. Os valores mais elevados de resistência foram observados nas juntas coladas com madeira de Eucalyptus saligna após a primeira etapa de equilíbrio, enquanto os menores valores ocorreram nas juntas combinando lâminas de eucalipto e MDF. Considerando apenas as lâminas de madeira, os valores mais elevados de falha na madeira foram observados nas juntas coladas entre lâminas de Eucalyptus grandis. Nas amostras compostas de madeira de eucalipto e lâminas de MDF, a porcentagem de falha foi total e o rompimento ocorreu exclusivamente no interior da chapa de MDF. Observou-se interação significativa entre a composição das amostras lâminas e o tipo de adesivo, em que os valores mais altos de resistência ocorreram nas juntas coladas com madeira de Eucalyptus saligna e adesivo à base de uréia-formaldeído.The objectives of this work was to evaluate the effect of air relative humidity and air temperature cycles on glue line resistance of glued veneer joints of Eucalyptus grandis, Eucalyptus saligna and medium density fiberboard (MDF. Densities of Eucalyptus grandis, Eucalyptus saligna wood and MDF were equal to 0,60, 0.66, e 0.72g/cm³ respectively. Medium viscosity

  11. Regulation of AR Degradation and Function by Ubiquitylation

    Science.gov (United States)

    2014-10-01

    Identify ubiquitylation sites associated with degradation of the unliganded AR. We have used liquid chromatography followed by tandem mass spectrometry (LC...unmodified AR band in another gel slice). Protein in gel slices was then digested with trypsin (which leaves a gly-gly tag on ubiquitin-modified proteins

  12. Aspects of What Makes or Breaks a Museum AR Experience

    DEFF Research Database (Denmark)

    Madsen, Claus B.; Madsen, Jacob Boesen; Morrison, Ann

    2012-01-01

    The paper critically evaluates central aspects of an iPad AR application developed for a museum context. The application is designed for children aged 8 to 12 and mixes AR and mini-game elements to convey dramatized historical events. The game has been deployed for roughly 3 months and the findin...

  13. 75 FR 12163 - Class E Airspace; Mountain View, AR

    Science.gov (United States)

    2010-03-15

    ... Federal Aviation Administration 14 CFR Part 71 Class E Airspace; Mountain View, AR AGENCY: Federal... proposes to amend Class E airspace at Mountain View, AR. Decommissioning of the Wilcox non-directional beacon (NDB) at Mountain View Wilcox Memorial Field Airport has made this action necessary for the...

  14. Estudo das pressões no interior dos balonetes de tubos traqueais

    Directory of Open Access Journals (Sweden)

    Aranha André Galante Alencar

    2003-01-01

    Full Text Available JUSTIFICATIVA E OBJETIVOS: Como não é rotineiro o controle da pressão no interior dos balonetes de tubos traqueais, e não há descrição detalhada na literatura de como mantê-la abaixo dos 30 cmH2O sem utilização de manômetro, decidiu-se verificar as pressões no interior de balonetes de tubos traqueais em pacientes sob intubação traqueal na unidade de terapia intensiva e no cento cirúrgico, testando manobra para manter a pressão no balonete abaixo de 30 cmH2O, mas em níveis mínimos necessários para ciclagem do ventilador sem perda do volume corrente. MÉTODO: Foram estudadas as pressões no interior de balonetes de tubos traqueais de 50 pacientes sob intubação traqueal na unidade de terapia intensiva (Grupo I e 72 pacientes sob intubação traqueal no centro cirúrgico (Grupo II. Testou-se uma manobra para obter a pressão mínima no interior do balonete do tubo traqueal, necessária para adequada ventilação, sem vazamento de ar. Registrou-se a pressão inicial (P1 no interior dos balonetes dos tubos traqueais utilizando-se manômetro digital graduado em centímetros de água, acoplado a seringa de 15 ml. Aspirou-se secreção da orofaringe. Com o meato acústico externo do examinador próximo da boca do paciente entre 10 e 20 cm, conectou-se o manômetro ao balonete, que foi esvaziado lentamente, até se ouvir ruído em sopro, pelo vazamento do volume corrente no período inspiratório da ventilação artificial. Neste momento, encheu-se lentamente o balonete até o desaparecimento do ruído. Anotou-se a pressão final (P2 do balonete e o volume de ar que restou na seringa do manômetro (V. RESULTADOS: As médias das pressões P1 nos grupos I e II foram 85,3 e 56,2 cmH2O, respectivamente. As médias de pressões P2 nos grupos I e II foram 26,7 e 15,5 cmH2O respectivamente. Após a manobra testada, o desvio padrão baixou de 56,3 para 8,2 no grupo I, e de 48 para 6,7 no grupo II. No grupo I, a manobra reduziu o volume e a

  15. Mobile Modelling for Crowdsourcing Building Interior Data

    Science.gov (United States)

    Rosser, J.; Morley, J.; Jackson, M.

    2012-06-01

    Indoor spatial data forms an important foundation to many ubiquitous computing applications. It gives context to users operating location-based applications, provides an important source of documentation of buildings and can be of value to computer systems where an understanding of environment is required. Unlike external geographic spaces, no centralised body or agency is charged with collecting or maintaining such information. Widespread deployment of mobile devices provides a potential tool that would allow rapid model capture and update by a building's users. Here we introduce some of the issues involved in volunteering building interior data and outline a simple mobile tool for capture of indoor models. The nature of indoor data is inherently private; however in-depth analysis of this issue and legal considerations are not discussed in detail here.

  16. Magnetic investigations for studying planetary interiors

    Directory of Open Access Journals (Sweden)

    A. De Santis

    1994-06-01

    Full Text Available Most of the magnetic methods used for investigating planetary interiors are based on the reasonable hypothesis that the mechanism for the origin of the field is an Earth-like hydromagnetic dynamo: in this case the planet has an electrically conducting fluid shell within it as in the case of the Earth's core. The present paper describes several techniques of planetary magnetic investigation which give important clues on the internal constitution of planets. Some considerations on the possible mechanisms for maintaining a dynamo and simple concepts with the help of a few non-dimensional numbers are also introduced and discussed. Then some fundamental relationships are given in order to relate the planetary magnetism to other physical parameters, such as angular rotation, core dimensions etc. It finally summarizes some results available for the planets of the Solar System.

  17. DASAR-DASAR PERENCANAAN INTERIOR MUSEUM

    Directory of Open Access Journals (Sweden)

    Anak Agung Ayu Wulandari

    2014-05-01

    Full Text Available Old, haunted, dark and poorly maintained are the impressions of Indonesian museums. Unlike foreign museums which are always crowded with visitors, Indonesian museums are always quiet and deserted. The biggest challenge for museums today is recognise that museums are for people and that their future depends on developing themselves to meet the needs of the people. Thus, Indonesian museums need to develop and apply mass communication model combined with the interpersonal communication model where in this type of communication visitors are allowed to participate in the exhibition and become part of the exhibition since this is what nowadays visitors desired to do. With a better planned exhibition interior design, following the basic design principles such as transforming space with harmony, creating room atmosfer, pacing and circulation, suitable lighting design and display as well as using appropriate presetantion technique combined with technology and multimedia, an exhibition will become a more interactive and attractive that will meet visitors expectation

  18. Titan's interior from Cassini-Huygens

    Science.gov (United States)

    Tobie, G.; Baland, R.-M.; Lefevre, A.; Monteux, J.; Cadek, O.; Choblet, G.; Mitri, G.

    2013-09-01

    The Cassini-Huygens mission has brought many informations about Titan that can be used to infer its interior structure: the gravity field coefficients (up to degree 3, [1]), the surface shape (up to degree 6, [2]), the tidal Love number [1], the electric field [3], and the orientation of its rotation axis [4]. The measured obliquity and gravity perturbation due to tides, as well as the electric field, are lines of evidence for the presence of an internal global ocean beneath the ice surface of Titan [5,1,3]. The observed surface shape and gravity can be used to further constrain the structure of the ice shell above the internal ocean. The presence of a significant topography associated with weak gravity anomalies indicates that deflections of internal interface or lateral density variations may exist to compensate the topography. To assess the sources of compensation, we consider interior models including interface deflections and/or density variations, which reproduces simultaneously the surface gravity and long-wavelength topography data [6]. Furthermore, in order to test the long-term mechanical stability of the internal mass anomalies, we compute the relaxation rate of each internal interface in response to surface mass load. We show that the topography can be explained either by defections of the ocean/ice interface or by density variations in an upper crust [6]. For non-perfectly compensated models of the outer ice shell, the present-day structure is stable only for a conductive layer above a relatively cold ocean (for bottom viscosity > 1016 Pa.s, T Love number and the obliquity. To derive the possible density profile, the obliquity is computed from a Cassini state model for a satellite with an internal liquid layer, each layer having an ellipsoidal shape consistent with the measured surface shape and gravity field [7]. We show that, once the observed surface flattening is taken into account, the measured obliquity can be reproduced only for internal models

  19. Wall grid structure for interior scene synthesis

    KAUST Repository

    Xu, Wenzhuo

    2015-02-01

    We present a system for automatically synthesizing a diverse set of semantically valid, and well-arranged 3D interior scenes for a given empty room shape. Unlike existing work on layout synthesis, that typically knows potentially needed 3D models and optimizes their location through cost functions, our technique performs the retrieval and placement of 3D models by discovering the relationships between the room space and the models\\' categories. This is enabled by a new analytical structure, called Wall Grid Structure, which jointly considers the categories and locations of 3D models. Our technique greatly reduces the amount of user intervention and provides users with suggestions and inspirations. We demonstrate the applicability of our approach on three types of scenarios: conference rooms, living rooms and bedrooms.

  20. Interior design of the lunar outpost

    Science.gov (United States)

    Kennedy, Kriss J.

    1990-01-01

    This paper is part of an ongoing study on the interior design of a lunar outpost habitat facility. The concept presented represents the work done up to and including August 1989. This concept is part of NASA's ongoing effort to explore alternative options for planet surface systems habitation. Results of a volume analog study to determine the required pressurized volume are presented along with an internal layout of the habitat facility. The concept presented in this paper is a constructible lunar habitat that provides a living and working environment for a crew of 12. It is a 16-m diameter spherical pneumatic structure which contains 2145 cubic meters of volume. Five levels of living and working areas make up the 742 sq m of floor space. A 2-m vertical circulation shaft at the center allows for transfer of crew and equipment.

  1. AR Sco: A White Dwarf Synchronar

    CERN Document Server

    Katz, J I

    2016-01-01

    The emission of the white dwarf-M dwarf binary AR Sco is driven by the rapid synchronization of its white dwarf, rather than by accretion. This requires a comparatively large magnetic field $\\sim 100$ gauss at the M dwarf and $\\sim 10^8$ gauss on the white dwarf, larger than the fields of most intermediate polars but within the range of fields of known magnetic white dwarfs. The spindown power is dissipated in the atmosphere of the M dwarf by magnetic reconnection, accelerating particles that produce the observed synchrotron radiation. The displacement of the optical maximum from conjunction may be explained either by dissipation in a bow wave as the white dwarf's magnetic field sweeps past the M dwarf or by a misaligned white dwarf's rotation axis and oblique magnetic moment. In the latter case the rotation axis precesses with a period of decades, predicting a drift in the orbital phase of maximum. Binaries whose emission is powered by synchronization may be termed synchronars, in analogy to magnetars.

  2. AR Sco: A Precessing White Dwarf Synchronar?

    Science.gov (United States)

    Katz, J. I.

    2017-02-01

    The emission of the white dwarf–M dwarf binary AR Sco is driven by the rapid synchronization of its white dwarf, rather than by accretion. Synchronization requires a magnetic field ∼100 Gauss at the M dwarf and ∼ {10}8 Gauss at the white dwarf, larger than the fields of most intermediate polars but within the range of fields of known magnetic white dwarfs. The spindown power is dissipated in the atmosphere of the M dwarf, within the near zone of the rotating white dwarf’s field, by magnetic reconnection, accelerating particles that produce the observed synchrotron radiation. The displacement of the optical maximum from conjunction may be explained either by dissipation in a bow wave as the white dwarf’s magnetic field sweeps past the M dwarf or by a misaligned white dwarf rotation axis and oblique magnetic moment. In the latter case the rotation axis precesses with a period of decades, predicting a drift in the orbital phase of the optical maximum. Binaries whose emission is powered by synchronization may be termed synchronars, in analogy to magnetars.

  3. Laser fusion 40Ar/39Ar dating on young volcanic rocks.%(极)年轻火山岩激光熔蚀40Ar/39Ar定年

    Institute of Scientific and Technical Information of China (English)

    周晶; 季建清; Alan DEINO; 龚俊峰; 韩宝福; 涂继耀; 桑海清; 徐剑光

    2013-01-01

    It is extremely difficult to date young volcanic rocks.Accurate 40Ar/39Ar dating research and practice of young volcanic rocks in China put forward several notable and important points during the process of 40Ar/39 Ar dating for young volcanic rocks.Because of the low background level,small sample quantity,and high sensitivity of modem noble gas isotope mass spectrometry device,laser ablation 40Ar/39Ar dating technique has been used in depth application in volcanic rocks dating.With the laser in 40Ar/39Ar dating of young and modern volcanic rocks,the discrepancy of Nier value and initial argon isotope ratio in Quaternary samples may cause a remarkable deviation between K-Ar apparent age and 40 Ar/39 Ar apparent age.The deviation show exponential increase for samples younger than 0.2Ma,but it is not so notable for samples older than 2Ma.There out,the boundary of young and modern volcanic rocks,which is applied to 40 Ar/39 Ar system,is assigned at 0.2Ma:rocks aged 2 ~ 0.2Ma is defined as young volcanic rock,while rocks aged younger than 0.2Ma is defined as modem volcanic rock.The phenocrysts,which are from different argon isotope fractionation system,should be rejected from the sample during 40Ar/39 Ar dating.According to rock texture and grain size of mineral,the matrix should be picked with ideal grain size.In normal cases,about 0.2mm (or 60 ~ 80 mesh) is recommended; Cooling time after irradiation of fast neutron reactor should not be no more than three months,or else it may cause an error on 37 Ar measurement,and consequently on final results.As neutron-flux monitor,standards should be characteristic of high homogeneity during laser 40Ar/39Ar dating.In calibrating the international and domestic standards we have,we find that SB-778-Bi,Bern4M and BT-1 can be ideal standard samples with good homogeneity.We also find that the isochron age calculated from the laser 40Ar/39Ar data of the phenocryst and matrix,which were cooled and crystallized at the same time

  4. O monitoramento dos movimentos corporais do sono e do ritmo de sono-vigília como indicador das alterações provocadas pela asfixia em ratos recém-nascidos

    OpenAIRE

    Suarez,Olivia Adayr Xavier

    2006-01-01

    As limitações dos métodos diagnósticos da asfixia perinatal levaram-nos a investigar se o monitoramento dos movimentos corporais do sono (MCS) e do ritmo de sono-vigília (S/V) pode ser utilizado como marcador diagnóstico deste processo patológico. Para tanto, os registros eletromiográfico e eletrocardiográfico de 8 ratos recém-nascidos, Wistar, com 6 a 48h de vida, foram obtidos durante 4 períodos experimentais: período controle - com ratos respirando ar atmosférico, por 30min; período de asf...

  5. ``Smoking From The Same Pipe": Developement of an 40Ar/39Ar Datting Intercalibration PIpette System (Invited)

    Science.gov (United States)

    Turrin, B. D.; Swisher, C. C.; Deino, A.; Hemming, S. R.; Hodges, K.; Renne, P. R.

    2010-12-01

    The precision and accuracy of Ar isotope ratio measurements is one of the main limiting factors in the uncertainties of an 40Ar/39Ar age. Currently, it is relatively common to measure Ar isotopic ratios to a precision of 1-2‰ or better on an intralaboratory basis. This level of analytical precision equates to a comparable level of precision (1-3‰) in the calculated age, depending on the extent of atmospheric Ar contamination, importance of nucleogenic interference corrections, and other factors. However, it has become clear that improving the precision of mass spectrometry is not the only bottleneck towards improving the accuracy and precision of 40Ar/39Ar dating in general. Rather, the most urgent issue is interlaboratory reproducibility. This became obvious in a recent EARTHTIME initiative undertaken to intercalibrate two commonly used 40Ar/39Ar standards [the Fish Canyon sanidine (FCs) and the Alder Creek sanidine (ACs)]. This effort revealed variations amongst laboratories (at the 1-2% level), an order of magnitude greater than the internal analytical precisions. To address these issues, we have proposed (to NSF) to construct two identical pipette systems loaded to identical starting pressures and with identical isotopic compositions. One pipette system will travel between participating 40Ar/39Ar labs and the second system will not travel and serve as the “Master” system to test for any fractionation or undocumented depletion of the traveling pipette system. In order to ensure delivery of uniform amounts of homogenous gas, the pipette system will be computer-controlled with preprogrammed routines and lockouts to prevent compromising the reservoirs. The pipette systems will deliver three gas samples with different isotopic ratios at two different pressures/concentrations. One pipette bulb will be of atmospheric isotopic composition, and the other two pipette bulbs will have 40Ar*/39ArK ratios corresponding to co-irradiated ACs and FCs fixed by their

  6. Evaluation of the IPCC Models (AR4 and AR5) in the Precipitation Simulation in the Northeast of Brazil

    Science.gov (United States)

    Alves, José; Vasconcelos Junior, Francisco; Chaves, Rosane; Silva, Emerson; Servain, Jacques; Costa, Alexandre; Sombra, Sérgio; Barbosa, Augusto; Dos Santos, Antonio

    2016-04-01

    With the simulations of the models used in the latest reports from the Intergovernmental Panel on Climate Change (IPCC), comparative studies are necessary between observations and the so-called historical run (C20) and future projections of the AR4 (A2) and AR5 (RCP8.5) experiments, in order to assess whether the AR5 models had a better performance in the representation of physical processes. This article compares the sensitivity of IPCC models (AR4 and AR5) in representing the anuall average and seasonal rainfall variation (summer and autumn) in three regions of the Northeast of Brazil between 1979 and 2000, using the CMAP - CPC (Merged Analysis of Precipitation) data as reference. The projections made by these models for the period 2040-2070 were also analyzed.

  7. 40Ar/39Ar geochronology and exhumation of mylonitized metamorphic complex in Changle-Nanao ductile shear zone

    Institute of Scientific and Technical Information of China (English)

    王志洪; 卢华复

    1997-01-01

    New 40Ar/39Ar plateau ages from rocks of Changle-Nanao ductile shear zone are 107.9 Ma(Mus), 108.2 Ma(Bi), 107. 1 Ma(Bi), 109. 2 Ma(Hb) and 117. 9 Ma(Bi) respectively, which are concordant with their isochron ages and record the formation age of the ductile shear zone. The similarity and apparent overlap of the cooling ages with respective closure temperatures of 5 minerals document initial rapid uplift during 107-118 Ma following the collision between the Min-Tai microcontinent and the Min-Zhe Mesozoic volcanic arc. The 40Ar/39Ar plateau ages, K-Ar date of K-feldspar and other geochronologic information suggest that the exhumation rate of the ductile shear zone is about 0.18-1.12 mm/a in the range of 107-70 Ma, which is mainly influenced by tectonic extension.

  8. Ar-40/Ar-39 age determinations for the Rotoiti eruption, New Zealand

    Science.gov (United States)

    Flude, S.; Storey, M.

    2013-12-01

    The contemporaneous Rotoiti and Earthquake Flat ignimbrites, erupted from the Taupo Volcanic zone, New Zealand, form a distinctive tephrostratigraphic horizon in the Southern Pacific. Radioisotopic dating results for these eruptions remain controversial, with published ages ranging from 35.1 × 2.8 ka [1] to 71 × 6 ka [2], with 61.0 × 1.5 ka [3] often being cited as the most widely accepted age. These eruptions are difficult to date as their age is near the limit for various radiometric dating techniques, which are complicated by a large proportion of inherited material (xenocrysts) and a lack of phases suitable for dating. Glass-bearing plutonic blocks erupted with the Rotoiti and Earthquake Flat ignimbrites have previously been interpreted as deriving from a slowly cooled and incompletely solidified magma body that was sampled by the eruptions. They contain large vugs lined with euhedral quartz, sanidine and biotite crystals, indicating that these crystals grew in a gas or aqueous fluid rich environment and are interpreted to have formed shortly before or during eruption. Here we will present Ar-40/Ar-39 ages for sanidines and biotites extracted from vugs in lithic blocks erupted as part of the Earthquake Flat ignimbrite. We show that, even for vug-lining material, inherited ages remain a problem and are the likely source of the wide variation in published radiometric ages. Nevertheless, many of the Ar-40/Ar-39 ages are much younger than the 61 ka age [3] and are more consistent with the recent stratigraphic, C-14 and U-238/Th-230+(U-Th)/He ages that have been suggested (e.g. [4,5]). 1. Whitehead, N. & Ditchburn, R. New Zealand Journal of Geology and Geophysics 37, 381-383 (1994). 2. Ota, Y., Omura, A. & Iwata, H. New Zealand Journal of Geology and Geophysics 32, 327-331 (1989). 3. Wilson, C. J. N. et al. Quaternary Science Reviews 26, 1861-1870 (2007). 4. Molloy, C., Shane, P. & Augustinus, P. Geological Society of America Bulletin 121, 1666-1677 (2009). 5

  9. Expression of ER and AR in lung cancer

    Directory of Open Access Journals (Sweden)

    Shuling WANG

    2008-02-01

    Full Text Available Background and objective Epidemiology of lung cancer differs between sexes and it might be partially explained by different sex hormone levels in women and men. There are some epidemiological data indicating that gender is a significant, independent prognostic factor in lung cancer. The aim of this study is to determine expression of ER (estrogen receptor and AR (androgen receptor in lung cancer, and evaluate the relationship between their expression and clinical or pathologic characteristics. Methods Immunohistochemistry assay was used to detect expression of ER and AR. Results Positive expression of ER and AR were 14.3%(15/105 and 20%(21/105. Positive expression of ER had no relationship with age, gender, pathology, histological differentiation, TNM staging, size of tumor and lymph node metastasis. Although age, gender, pathology, histological differentiation and size of tumor had no effect on the expression of AR, positive rate of AR in staging III lung cancer was significantly higher than that in staging I lung cancer. The different AR expression was significant between N0 and N2 lymph node metastasis ( Chisquare= 4.7828,P=0.0287. Conclusion The expression of ER has no relationship with biological behavior. Positive expression of AR may be correlated with the progression and the lymph node metastasis of lung cancer.

  10. Optimal Power Flow by Interior Point and Non Interior Point Modern Optimization Algorithms

    Directory of Open Access Journals (Sweden)

    Marcin Połomski

    2013-03-01

    Full Text Available The idea of optimal power flow (OPF is to determine the optimal settings for control variables while respecting various constraints, and in general it is related to power system operational and planning optimization problems. A vast number of optimization methods have been applied to solve the OPF problem, but their performance is highly dependent on the size of a power system being optimized. The development of the OPF recently has tracked significant progress both in numerical optimization techniques and computer techniques application. In recent years, application of interior point methods to solve OPF problem has been paid great attention. This is due to the fact that IP methods are among the fastest algorithms, well suited to solve large-scale nonlinear optimization problems. This paper presents the primal-dual interior point method based optimal power flow algorithm and new variant of the non interior point method algorithm with application to optimal power flow problem. Described algorithms were implemented in custom software. The experiments show the usefulness of computational software and implemented algorithms for solving the optimal power flow problem, including the system model sizes comparable to the size of the National Power System.

  11. Jurassic cooling ages in Paleozoic to early Mesozoic granitoids of northeastern Patagonia: 40Ar/39Ar, 40K-40Ar mica and U-Pb zircon evidence

    Science.gov (United States)

    Martínez Dopico, Carmen I.; Tohver, Eric; López de Luchi, Mónica G.; Wemmer, Klaus; Rapalini, Augusto E.; Cawood, Peter A.

    2016-12-01

    U-Pb SHRIMP zircon crystallization ages and Ar-Ar and K-Ar mica cooling ages for basement rocks of the Yaminué and Nahuel Niyeu areas in northeastern Patagonia are presented. Granitoids that cover the time span from Ordovician to Early Triassic constitute the main outcrops of the western sector of the Yaminué block. The southern Yaminué Metaigneous Complex comprises highly deformed Ordovician and Permian granitoids crosscut by undeformed leucogranite dikes (U-Pb SHRIMP zircon age of 254 ± 2 Ma). Mica separates from highly deformed granitoids from the southern sector yielded an Ar-Ar muscovite age of 182 ± 3 Ma and a K-Ar biotite age of 186 ± 2 Ma. Moderately to highly deformed Permian to Early Triassic granitoids made up the northern Yaminué Complex. The Late Permian to Early Triassic (U-Pb SHRIMP zircon age of 252 ± 6 Ma) Cabeza de Vaca Granite of the Yaminué block yielded Jurassic mica K-Ar cooling ages (198 ± 2, 191 ± 1, and 190 ± 2 Ma). At the boundary between the Yaminué and Nahuel Niyeu blocks, K-Ar muscovite ages of 188 ± 3 and 193 ± 5 Ma were calculated for the Flores Granite, whereas the Early Permian Navarrete granodiorite, located in the Nahuel Niyeu block, yielded a K-Ar biotite age of 274 ± 4 Ma. The Jurassic thermal history is not regionally uniform. In the supracrustal exposures of the Nahuel Niyeu block, the Early Permian granitoids of its western sector as well as other Permian plutons and Ordovician leucogranites located further east show no evidence of cooling age reset since mica ages suggest cooling in the wake of crystallization of these intrusive rocks. In contrast, deeper crustal levels are inferred for Permian-Early Triassic granitoids in the Yaminué block since cooling ages for these rocks are of Jurassic age (198-182 Ma). Jurassic resetting is contemporaneous with the massive Lower Jurassic Flores Granite, and the Marifil and Chon Aike volcanic provinces. This intraplate deformational pulse that affected northeastern

  12. Full Waveform Inversion of Solar Interior Flows

    CERN Document Server

    Hanasoge, Shravan M

    2014-01-01

    The inference of flows of material in the interior of the Sun is a subject of major interest in helioseismology. Here we apply techniques of Full Waveform Inversion (FWI) to synthetic data to test flow inversions. In this idealized setup, we do not model seismic realization noise, training the focus entirely on the problem of whether a chosen supergranulation flow model can be seismically recovered. We define the misfit functional as a sum of L_2 norm deviations in travel times between prediction and observation, as measured using short-distance f and p_1 filtered and large-distance unfiltered $p$ modes. FWI allows for the introduction of measurements of choice and iteratively improving the background model, while monitoring the evolution of the misfit in all desired categories. Although the misfit is seen to uniformly reduce in all categories, convergence to the true model is very slow, possibly because it is trapped in a local minimum. The primary source of error is inaccurate depth localization, which, owi...

  13. Capillary Flow in an Interior Corner

    Science.gov (United States)

    Weislogel, Mark Milton

    1996-01-01

    The design of fluids management processes in the low-gravity environment of space requires an accurate model and description of capillarity-controlled flow in containers of irregular geometry. Here we consider the capillary rise of a fluid along an interior corner of a container following a rapid reduction in gravity. The analytical portion of the work presents an asymptotic formulation in the limit of a slender fluid column, slight surface curvature along the corner, small inertia, and low gravity. New similarity solutions are found and a list of closed form expressions is provided for flow rate and column length. In particular, it is found that the flow is proportional to t(exp 1/2) for a constant height boundary condition, t(exp 2/5) for a spreading drop, and t(exp 3/5) for constant flow. In the experimental portion of the work, measurements from a 2.2s drop tower are reported. An extensive data set, collected over a previously unexplored range of flow parameters, includes estimates of repeatability and accuracy, the role of inertia and column slenderness, and the effects of corner angle, container geometry, and fluid properties. Comprehensive comparisons are made which illustrate the applicability of the analytic results to low-g fluid systems design.

  14. Space station interior noise analysis program

    Science.gov (United States)

    Stusnick, E.; Burn, M.

    1987-02-01

    Documentation is provided for a microcomputer program which was developed to evaluate the effect of the vibroacoustic environment on speech communication inside a space station. The program, entitled Space Station Interior Noise Analysis Program (SSINAP), combines a Statistical Energy Analysis (SEA) prediction of sound and vibration levels within the space station with a speech intelligibility model based on the Modulation Transfer Function and the Speech Transmission Index (MTF/STI). The SEA model provides an effective analysis tool for predicting the acoustic environment based on proposed space station design. The MTF/STI model provides a method for evaluating speech communication in the relatively reverberant and potentially noisy environments that are likely to occur in space stations. The combinations of these two models provides a powerful analysis tool for optimizing the acoustic design of space stations from the point of view of speech communications. The mathematical algorithms used in SSINAP are presented to implement the SEA and MTF/STI models. An appendix provides an explanation of the operation of the program along with details of the program structure and code.

  15. Magnetism and the interior of the moon

    Science.gov (United States)

    Dyal, P.; Parkin, C. W.; Daily, W. D.

    1974-01-01

    During the time period 1961-1972, 11 magnetometers were sent to the moon. The primary purpose of this paper is to review the results of lunar magnetometer data analysis, with emphasis on the lunar interior. Magnetic fields have been measured on the lunar surface at the Apollo 12, 14, 15, and 16 landing sites. The remanent field values at these sites are 38, 103 (maximum), 3, and 327 gammas (maximum), respectively. Simultaneous magnetic field and solar plasma pressure measurements show that the Apollo 12 and 16 remanent fields are compressed during times of high plasma dynamic pressure. Apollo 15 and 16 subsatellite magnetometers have mapped in detail the field above portions of the lunar surface and have placed an upper limit on the global permanent dipole moment. Satellite and surface measurements show strong evidence that the lunar crust is magnetized over much of the lunar globe. Magnetic fields are stronger in highland regions than in mare regions and stronger on the lunar far side than on the near side. The largest magnetic anomaly measured to date is between the craters Van de Graaff and Aitken on the lunar far side.

  16. The Gravity Recovery and Interior Laboratory Mission

    Science.gov (United States)

    Lehman, David H.; Hoffman, Tom L.; Havens, Glen G.

    2013-01-01

    The Gravity Recovery and Interior Laboratory (GRAIL) mission, launched in September 2011, successfully completed its Primary Science Mission in June 2012 and is currently in Extended Mission operations. Competitively selected under a NASA Announcement of Opportunity in December 2007, GRAIL is a Discovery Program mission subject to a mandatory project cost cap. The purpose of the mission is to precisely map the gravitational field of the Moon to reveal its internal structure from crust to core, determine its thermal evolution, and extend this knowledge to other planets. The mission uses twin spacecraft flying in tandem to provide the gravity map. The GRAIL Flight System, consisting of the spacecraft and payload, was developed based on significant heritage from previous missions such an experimental U.S. Air Force satellite, the Mars Reconnaissance Orbiter (MRO) mission, and the Gravity Recovery and Climate Experiment (GRACE) mission. The Mission Operations System (MOS) was based on high-heritage multimission operations developed by NASA's Jet Propulsion Laboratory and Lockheed Martin. Both the Flight System and MOS were adapted to meet the unique challenges posed by the GRAIL mission design. This paper summarizes the implementation challenges and accomplishments of getting GRAIL ready for launch. It also discusses the in-flight challenges and experiences of operating two spacecraft, and mission results.

  17. A Survey on Web-based AR Applications

    CERN Document Server

    Parhizkar, Behrang; Lashkari, Arash Habibi; Bartaripou, Mohammad Mehdi; Babae, Hossein Reza

    2011-01-01

    Due to the increase of interest in Augmented Reality (AR), the potential uses of AR are increasing also. It can benefit the user in various fields such as education, business, medicine, and other. Augmented Reality supports the real environment with synthetic environment to give more details and meaning to the objects in the real word. AR refers to a situation in which the goal is to supplement a user's perception of the real-world through the addition of virtual objects. This paper is an attempt to make a survey of web-based Augmented Reality applications and make a comparison among them.

  18. A Survey on Web-based AR Applications

    Directory of Open Access Journals (Sweden)

    Behrang Parhizkar

    2011-07-01

    Full Text Available Due to the increase of interest in Augmented Reality (AR, the potential uses of AR are increasing also. It can benefit the user in various fields such as education, business, medicine, and other. Augmented Reality supports the real environment with synthetic environment to give more details and meaning to the objects in the real word. AR refers to a situation in which the goal is to supplement a user's perception of the real-world through the addition of virtual objects. This paper is an attempt to make a survey of web-based Augmented Reality applications and make a comparison among them.

  19. (40)Ar/(39)Ar Age of Hornblende-Bearing R Chondrite LAP 04840

    Science.gov (United States)

    Righter, K.; Cosca, M.

    2015-01-01

    Chondrites have a complex chronology due to several variables affecting and operating on chondritic parent bodies such as radiogenic heating, pressure and temperature variation with depth, aqueous alteration, and shock or impact heating. Unbrecciated chondrites can record ages from 4.56 to 4.4 Ga that represent cooling in small parent bodies. Some brecciated chondrites exhibit younger ages (much less than 4 to 4.4 Ga) that may reflect the age of brecciation, disturbance, or shock and impact events (much less than 4 Ga). A unique R chondrite was recently found in the LaPaz Icefield of Antarctica - LAP 04840. This chondrite contains approximately 15% hornblende and trace amounts of biotite, making it the first of its kind. Studies have revealed an equigranular texture, mineral equilibria yielding equilibration near 650-700 C and 250-500 bars, hornblende that is dominantly OH-bearing (very little Cl or F), and high D/H ratios. To help gain a better understanding of the origin of this unique sample, we have measured the (40)Ar/(39)Ar age (LAP 04840 split 39).

  20. Mass Spectrometric and Langmuir Probe Measurements in Inductively Coupled Plasmas in Ar, CHF3/Ar and CHF3/Ar/O2 Mixtures

    Science.gov (United States)

    Kim, J. S.; Rao, M. V. V. S.; Cappelli, M. A.; Sharma, S. P.; Meyyappan, M.; Arnold, Jim (Technical Monitor)

    2000-01-01

    Absolute fluxes and energy distributions of ions in inductively coupled plasmas of Ar, CHF3/Ar, and CHF3/Ar/O2 have been measured. These plasmas were generated in a Gaseous Electronics Conference (GEC) cell modified for inductive coupling at pressures 10-50 mTorr and 100-300 W of 13.56 MHz radio frequency (RF) power in various feedgas mixtures. In pure Ar plasmas, the Ar(+) flux increases linearly with pressure as well as RF-power. Total ion flux in CHF3 mixtures decreases with increase in pressure and also CHF3 concentration. Relative ion fluxes observed in the present studies are analyzed with the help of available cross sections for electron impact ionization and charge-exchange ion-molecule reactions. Measurements of plasma potential, electron and ion number densities, electron energy distribution function, and mean electron energy have also been made in the center of the plasma with a RF compensated Langmuir probe. Plasma potential values are compared with the mean ion energies determined from the measured ion energy distributions and are consistent. Electron temperature, plasma potential, and mean ion energy vary inversely with pressure, but increase with CHF3 content in the mixture.

  1. 40Ar/39Ar dating of Pleistocene tuffs: an accurate age for the Matuyama-Brunhes geomagnetic reversal (MBGR)

    Science.gov (United States)

    Mark, D. F.; Renne, P. R.; Morgan, L. E.; Deino, A.; Smith, V. C.; Ellis, B. S.; Pearce, N. J.

    2012-12-01

    Recent recalibrations of the 40Ar/39Ar system [1,2] reveal inconsistencies with some previous ages inferred for the MBGR. An Ar/Ar age [3] for the Bishop Tuff (BT) (which post-dates the MBGR by at least 15.3 ± 2.2 ka [3]) recalculated [2] yields an age of 778.0 ± 3.8 ka (1σ, full systematic uncertainty). The age is c. 10 ka older than the BT zircon ID-TIMS U-Pb age [4] and places the MBGR at c. 793 ka, c. 13 and 20 ka older than astronomical ages for the MBGR of 780 ka [5] and 773 ka [6], respectively. To determine an accurate age for the MBGR, we have made a series of 40Ar/39Ar age determinations for Pleistocene tuffs from both Indonesia and North America that have direct relationships to the MBGR. Blind analyses were conducted at SUERC and BGC. We observed excellent inter-laboratory agreement and no systematic offset in data. Ar/Ar ages are reported relative to [2] (1σ, full systematic uncertainty). Drill cores from ODP Site 758 show the precise location of the MBGR. Below the MBGR are two distal tephra horizons that we have identified as products of two temporally distinct Old Toba Tuff (OTT) eruptions (layer d OTT1 and layer D OTT2). Continuous sedimentation between OTT1 (802.8 ± 0.7 ka, n = 100, MSWD 1.2) and OTT2 (796.2 ± 0.8 ka, n = 62, MSWD 1.3) allows for calculation of an accurate sedimentation rate and for extrapolation of an age from OTT2 to the MBGR. Data define an age for the MBGR of 795.2 ± 0.9 ka. Using tephra above the MBGR boundary, the Middle Toba Tuff (layer C) and Young Toba Tuff (layer A), extrapolation down core supports a MBGR age of c. 795 ka. Recent age data for BT sanidine reported relative to FCs at 28.172 Ma (767.4 ± 1.1 Ma) [7] oddly yielded an Ar/Ar age that was indistinguishable from the BT zircon U-Pb age [4], which is consistent with previous 40Ar/39Ar age measurements made relative to FCs at 28.02 Ma [3]. Thus we made a series of 40Ar/39Ar measurements on the exact same sample as used by Rivera et al. [7] and observed

  2. 40Ar/39Ar and U-Th-Pb dating of separated clasts from the Abee E4 chondrite

    Science.gov (United States)

    Bogard, D.D.; Unruh, D.M.; Tatsumoto, M.

    1983-01-01

    Determinations of 40Ar/39Ar and U-Th-Pb are reported for three clasts from the Abee (E4) enstatite chondrite, which has been the object of extensive consortium investigations. The clasts give 40Ar/39Ar plateau ages and/or maximum ages of 4.5 Gy, whereas two of the clasts give average ages of 4.4 Gy. Within the range of 4.4-4.5 Gy these data do not resolve any possible age differences among the three clasts. 206Pb measured in these clasts is only ???1.5-2.5% radiogenic, which leads to relatively large uncertainties in the Pb isochron age and in the 207Pb/206Pb model ages. The Pb data indicate that the initial 207Pb/206Pb was no more than 0.08??0.07% higher than this ratio in Can??on Diablo troilite. The U-Th-Pb data are consistent with the interpretation that initial formation of these clasts occurred 4.58 Gy ago and that the clasts have since remained closed systems, but are contaminated with terrestrial Pb. The 40Ar/39Ar ages could be gas retention ages after clast formation or impact degassing ages. The thermal history of Abee deduced from Ar data appears consistent with that deduced from magnetic data, and suggests that various Abee components experienced separate histories until brecciation no later than 4.4 Gy ago, and experienced no appreciable subsequent heating. ?? 1983.

  3. The Thermo Scientific HELIX-SFT noble gas mass spectrometer: (preliminary) performance for 40Ar/39Ar geochronology

    Science.gov (United States)

    Barfod, D. N.; Mark, D. F.; Morgan, L. E.; Tomkinson, T.; Stuart, F.; Imlach, J.; Hamilton, D.

    2011-12-01

    The Thermo Scientific HELIX-platform Split Flight Tube (HELIX-SFT) noble gas mass spectrometer is specifically designed for simultaneous collection of helium isotopes. The high mass spur houses a switchable 1011 - 1012 Ω resistor Faraday cup and the low mass spur a digital pulse-counting secondary electron multiplier (SEM). We have acquired the HELIX-SFT with the specific intention to measure argon isotopes for 40Ar/39Ar geochronology. This contribution will discuss preliminary performance (resolution, reproducibility, precision etc.) with respect to measuring argon isotope ratios for 40Ar/39Ar dating of geological materials. We anticipate the greatest impact for 40Ar/39Ar dating will be increased accuracy and precision, especially as we approach the techniques younger limit. Working with Thermo Scientific we have subtly modified the source, alpha and collector slits of the HELIX-SFT mass spectrometer to improve its resolution for resolving isobaric interferences at masses 36 to 40. The enhanced performance will allow for accurate and precise measurement of argon isotopes. Preliminary investigations show that we can obtain a valley resolution of >700 and >1300 (compared to standard HELIX-SFT specifications of >400 and >700) for the high and low mass spurs, respectively. The improvement allows for full resolution of hydrocarbons (C3+) at masses 37 - 40 and almost full resolution at mass 36. The HELIX-SFT will collect data in dual collection mode with 40Ar+ ion beams measured using the switchable 1011 - 1012 Ω resistor Faraday cup and 39Ar through 36Ar measured using the SEM. The HELIX-SFT requires Faraday-SEM inter-calibration but negates the necessity to inter-calibrate multiple electron multipliers. We will further present preliminary data from the dating of mineral standards: Alder Creek sanidine, Fish Canyon sanidine and Mount Dromedary biotite (GA1550).

  4. Single-crystal 40Ar/39Ar incremental heating reveals bimodal sanidine ages in the Bishop Tuff

    Science.gov (United States)

    Andersen, N. L.; Jicha, B. R.; Singer, B. S.

    2015-12-01

    The 650 km3 Bishop Tuff (BT) is among the most studied volcanic deposits because it is an extensive marker bed deposited just after the Matuyama-Brunhes boundary. Reconstructions of the vast BT magma reservoir from which high-silica rhyolite erupted have long influenced thinking about how large silicic magma systems are assembled, crystallized, and mixed. Yet, the longevity of the high silica rhyolitic melt and exact timing of the eruption remain controversial due to recent conflicting 40Ar/39Ar sanidine vs. SIMS and ID-TIMS U-Pb zircon dates. We have undertaken 21 40Ar/39Ar incremental heating ages on 2 mm BT sanidine crystals from pumice in 3 widely separated outcrops of early-erupted fall and flow units. Plateau ages yield a bimodal distribution: a younger group has a mean of 766 ka and an older group gives a range between 772 and 782 ka. The younger population is concordant with the youngest ID-TIMS and SIMS U-Pb zircon ages recently published, as well as the astronomical age of BT in marine sediment. Of 21 crystals, 17 yield older, non-plateau, steps likely affected by excess Ar that would bias traditional 40Ar/39Ar total crystal fusion ages. The small spread in older sanidine ages, together with 25+ kyr of pre-eruptive zircon growth, suggest that the older sanidines are not partially outgassed xenocrysts. A bimodal 40Ar/39Ar age distribution implies that some fraction of rhyolitic melt cooled below the Ar closure temperature at least 10 ky prior to eruption. We propose that rapid "thawing" of a crystalline mush layer released older crystals into rhyolitic melt from which sanidine also nucleated and grew immediately prior to the eruption. High precision 40Ar/39Ar dating can thus provide essential information on thermo-physical processes at the millenial time scale that are critical to interpreting U-Pb zircon age distributions that are complicated by large uncertainties associated with zircon-melt U-Th systematics.

  5. RadNet Air Data From Little Rock, AR

    Science.gov (United States)

    This page presents radiation air monitoring and air filter analysis data for Little Rock, AR from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.

  6. H- Beam Stripping Loss at Background Partial Pressure of Ar

    Institute of Scientific and Technical Information of China (English)

    Hu Chundong; Wang Shaohu; Hu Liqun

    2005-01-01

    It has been observed that H- current could be improved by adding Ar to H2 plasma.But due to a slower pumping speed for Ar with the existing pumping scheme, the tank pressure will increase quickly during the length of a beam pulse. Since H- stripping loss depends on the tank pressure and gas species, part of the H- beam can be converted to H0 and then H0 can be converted into H+ with background H2 and Ar gas thickness. Therefore, the H- beam current,measured by a Faraday cup, situated at a distance L from GG (ground grid), will decrease because it will be converted into a H+ current. This gives a ratio of the Faraday cup net current to the H- beam current before stripping at background partial pressure of Ar.

  7. The emission spectra of Ar, Kr and Xe + TEA

    Science.gov (United States)

    Suzuki, Masayo; Strock, Pierre; Sauli, Fabio; Charpak, Georges

    1987-03-01

    The emission spectra of Ar, Kr and Xe + 6% TEA gas mixtures are measured by using a single wire proportional counter as the emission source. Asymmetric emission bands are observed in the range of 270 to 350 nm, which can be attributed to the radiative deexcitation of excited TEA molecules. For the practical application of optical readout of avalanche chambers, the Ar + 2.0% TEA + 20% isobutane gas mixture is also examined, and nearly the same emission band is observed.

  8. The challenge to explore the Brazilian interior basins; O desafio da exploracao das bacias interiores brasileiras

    Energy Technology Data Exchange (ETDEWEB)

    Bacoccoli, Giuseppe [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia; Guimaraes, Paulo Buarque [Organizacao da Industria do Petroleo (ONIP), Rio de Janeiro, RJ (Brazil)

    2004-07-01

    Due to the development of the fields, already discovered in the deep waters of the Southeastern Atlantic Margin, the Brazilian domestic production will shortly be equivalent to the consumption. Despite reaching this goal, the exploration of large interior basins is still considered a challenge. Surprisingly, after the discoveries in the Solimoes Basin, as well after the opening of the Brazilian Petroleum Sector in 1997, the present level of the exploration activities in these basins is far below the previous historical averages. The available data are still now considered too scarce, to perform a proper evaluation. Apparently, a vicious circle has been established: due to the a priori low attractiveness new data are not acquired and because the lack of new data the attractiveness cannot be modified nor improved. The Parnaiba Basin is usually mentioned as an example of this poor amount of data. A modest coverage of ancient 2D seismic lines, and obsolete aero magnetic survey and thirty one exploratory wells, mostly located without geophysical support, represents all the available data in this vast basin with an area over 600,000 sq km. Recent regional geologic interpretations in such interior basins, as in Solimoes, Parana and also Parnaiba, are pointing out the presence of remarkable intraplate tectonic events, successively reactivated along the geologic time. It is now intended that these events can play an important role in the control of the petroleum system and in focalizing the new exploration activities. However, efforts should be applied in the revision of some regulatory rules, in Brazil, in order to better stimulate the onshore exploration and particularly the exploration of the interior basins. As recommended by the new Brazilian Petroleum Law, part of the government takes shall be effectively applied to acquire more geologic and geophysical data in the onshore areas (author)

  9. Virtual Interior Design Based On VRML AND JAVA

    Science.gov (United States)

    Qi, Shaoliang

    Virtual reality has been involved in a wide range of academic and commercial applications. It can give users a natural feeling of the environment by creating realistic virtual worlds. In this paper, we use vrml and java to discuss the virtual interior design. EAI and JASI are used to realize the interaction between user and virtual interior scene.

  10. Mood perception of interior colors in a gym

    Science.gov (United States)

    Ohno, Haruyo; Koizumi, Naoko

    2002-06-01

    When people enter a gym, they feel more like exercising in some cases than other cases. The interior color of the space may be a contributing factor. This paper discusses how the interior color of a gym affects female subjects in their twenties and forties to fifties both physiologically and psychologically.

  11. Design for subjective well-being in interior architecture

    NARCIS (Netherlands)

    Petermans, A.; Pohlmeyer, A.E.

    2014-01-01

    Can interior environments engage people in pleasurable and meaningful experiences and thereby have a positive influence on their happiness? This paper discusses why and how interior architects might want to consider implementing ideas in relation to ‘design for subjective well-being’. Despite of pe

  12. Field Dependence and Vocational Choice of Interior Design Students.

    Science.gov (United States)

    Davis, Diane M.; And Others

    One hundred ninety-three interior design college students were administered the Group Embedded Figures Test, a measure of field dependence, in order to evaluate two of Witkin's hypotheses regarding career choice. The career-differentiation hypothesis predicted that students electing to major in interior design would be field independent because…

  13. Interior Design Education within a Human Ecological Framework

    Science.gov (United States)

    Kaup, Migette L.; Anderson, Barbara G.; Honey, Peggy

    2007-01-01

    An education based in human ecology can greatly benefit interior designers as they work to understand and improve the human condition. Design programs housed in colleges focusing on human ecology can improve the interior design profession by taking advantage of their home base and emphasizing the human ecological framework in the design curricula.…

  14. Interior Design Standards in the Secondary FCS Curriculum

    Science.gov (United States)

    Katz, Shana H.; Smith, Bettye P.

    2006-01-01

    This article deals with a study on interior design standards in the secondary FCS curriculum. This study assessed the importance FCS teachers placed on content standards in the interior design curriculum to help determine the amount of time and emphasis to place on the units within the courses. A cover letter and questionnaire were sent…

  15. Interior Design Supports Art Education: A Case Study

    Science.gov (United States)

    Clemons, Stephanie A.

    2006-01-01

    Interior design, as a field of study, is a rapidly growing area of interest--particularly for teenagers in the United States. Part of this interest stems from the proliferation of design-related reality shows available through television media. Some art educators and curriculum specialists in the nation perceive the study of interior spaces as a…

  16. /sup 40/Ar-/sup 39/Ar dating of melt rock from impact craters

    Energy Technology Data Exchange (ETDEWEB)

    Bottomley, R.J.

    1982-01-01

    Meteorite impacts produce large volumes of shocked and brecciated rocks near the impact site. If the impact is large enough, target rocks will be fused to form melt rock which often pools on the crater floor. This melt rock will typically have a fine grained matrix enclosing heated but unmelted clasts of broken country rock. A suite of melt rocks from fifteen craters along with shocked rock from one crater and three tektites were analyzed by 40Ar-39Ar dating to study the argon systematics of melted and shocked rocks and to determine the time of impact which formed the craters. The age spectra from most of the melt rock samples turned out to be more complex than expected. The spectra could be classified into four families: 1) good plateaux; 2) structured plateaux; 3) stepwise rising spectra; and 4) snail shape spectra. In most cases an age based on one or both of these factors could be made of the non-plateau spectra. However the meaning of the resulting age is less certain than in the good plateaux cases. On the basis of their age, either of two Canadian craters, Wanapitei or Mistastin, could be comtemporaneous with the formation of the bediasites, raising the possibility that more than one impact was responsible for North American tektite strewnfield. In addition, there appears to be evidence that there was a higher than average incidence of impacts about 35 m.y. ago. During sample fusion, melt rocks release a greater proportion of their argon below 800/sup 0/C than do most terrestrial whole rocks.

  17. Non-Adiabatic Dynamics of ICN-(Ar)n and BrCN-(Ar)n

    Science.gov (United States)

    Opoku-Agyeman, Bernice; McCoy, Anne B.

    2016-06-01

    We investigate the dynamics of the photodissociation of ICN-(Ar)n and BrCN-(Ar)n following electronic excitation to states that dissociate into X- + CN and X* + CN- (X = I or Br) using classical dynamics approaches. Observations made from previous experiments and calculations of these anions demonstrated that non-adiabatic effects are important in the photodissociation process and are reflected in the branching ratios of the photoproducts. The addition of an argon atom is expected to shift the relative energies of these excited states, thereby altering the product branching. Interestingly, experimental studies show that electronically exciting ICN- solvated with even a single argon atom leads to a small fraction of the products recombine to form ICN-.a In this study, the dynamics are carried out using classical mechanics, treating the non-adiabatic effect with a surface hopping algorithm. We assess the accuracy of this approach by first calculating the branching ratios for the bare anions and comparing the results to those from quantum dynamics calculations.a,b Once the results from both the quantum and classical dynamics are shown to be consistent, the classical dynamics simulations are extended to the argon solvated anions. S. Case, E. M. Miller, J. P. Martin, Y. J. Lu, L. Sheps, A. B. McCoy, and W. C. Lineberger, Angew. Chem., Int. Ed. 51, 2651 (2012). B. Opoku-Agyeman, A. S. Case, J. H. Lehman, W. Carl Lineberger and A. B. McCoy, J. Chem Phys. 141, 084305 (2014). J. C. Tully, J. Chem Phys. 93, 1061 (1990).

  18. Ar-Ar Analysis of Chelyabinsk: Evidence for a Recent Impact

    Science.gov (United States)

    Beard, S. P.; Kring, D. A.; Isachsen, C. E.; Lapen, T. J.; Zolensky, M. E.; Swindle, T. D.

    2014-01-01

    The Chelyabinsk meteorite is an LL5 ordinary chondrite that fell as a spectacular fireball on February 15th, 2013, over the Ural region in Russia. The meteoroid exploded at an altitude of 25-30 km, producing shockwaves that broke windowpanes in Chelyabinsk and surrounding areas, injuring some 1500 people. Analyses of the samples show that the meteorite underwent moderate shock metamorphism (stage S4; 25-35 GPa) [1]. Most of the samples have a fusion crust ranging from 0.1-1mm thick, and roughly a third of the samples were composed of a dark fine-grained impact melt with chondrule fragments which were targeted for chronometry. A Pb-Pb age obtained by [2] of a shock-darkened and potentially melted sample of Chelyabinsk is reported as 4538.3 +/- 2.1 Ma, while a U-Pb study [3] gave an upper concordia intercept of 4454 +/- 67 Ma and a lower intercept of 585 +/- 390. Galimov et al. 2013 [1] suggest the Sm-Nd system records a recent impact event [290 Ma] that may represent separation from the parent body, while the Rb-Sr isotopic system is disturbed and does not give any definitive isochron. In order to better understand its history, we have performed 40Ar-39Ar analysis on multiple splits of two Chelyabinsk samples; clast- rich MB020f,2 and melt-rich MB020f,5. The term "clast-rich" lithology is meant to indicate a mechanical mixture of highly shock-darkened and less shocked components, both with some shock melt veining.

  19. Combined U-Th/He and 40Ar/ 39Ar geochronology of post-shield lavas from the Mauna Kea and Kohala volcanoes, Hawaii

    Science.gov (United States)

    Aciego, S. M.; Jourdan, F.; DePaolo, D. J.; Kennedy, B. M.; Renne, P. R.; Sims, K. W. W.

    2010-03-01

    Late Quaternary, post-shield lavas from the Mauna Kea and Kohala volcanoes on the Big Island of Hawaii have been dated using the 40Ar/ 39Ar and U-Th/He methods. The objective of the study is to compare the recently demonstrated U-Th/He age method, which uses basaltic olivine phenocrysts, with 40Ar/ 39Ar ages measured on groundmass from the same samples. As a corollary, the age data also increase the precision of the chronology of volcanism on the Big Island. For the U-Th/He ages, U, Th and He concentrations and isotopes were measured to account for U-series disequilibrium and initial He. Single analyses U-Th/He ages for Hamakua lavas from Mauna Kea are 87 ± 40 to 119 ± 23 ka (2 σ uncertainties), which are in general equal to or younger than 40Ar/ 39Ar ages. Basalt from the Polulu sequence on Kohala gives a U-Th/He age of 354 ± 54 ka and a 40Ar/ 39Ar age of 450 ± 40 ka. All of the U-Th/He ages, and all but one spurious 40Ar/ 39Ar ages conform to the previously proposed stratigraphy and published 14C and K-Ar ages. The ages also compare favorably to U-Th whole rock-olivine ages calculated from 238U- 230Th disequilibria. The U-Th/He and 40Ar/ 39Ar results agree best where there is a relatively large amount of radiogenic 40Ar (>10%), and where the 40Ar/ 36Ar intercept calculated from the Ar isochron diagram is close to the atmospheric value. In two cases, it is not clear why U-Th/He and 40Ar/ 39Ar ages do not agree within uncertainty. U-Th/He and 40Ar/ 39Ar results diverge the most on a low-K transitional tholeiitic basalt with abundant olivine. For the most alkalic basalts with negligible olivine phenocrysts, U-Th/He ages were unattainable while 40Ar/ 39Ar results provide good precision even on ages as low as 19 ± 4 ka. Hence, the strengths and weaknesses of the U-Th/He and 40Ar/ 39Ar methods are complimentary for basalts with ages of order 100-500 ka.

  20. Combined U-Th/He and 40Ar/39Ar geochronology of post-shield lavas from the Mauna Kea and Kohala volcanoes, Hawaii

    Energy Technology Data Exchange (ETDEWEB)

    Aciego, S.M.; Jourdan, F.; DePaolo, D.J.; Kennedy, B.M.; Renne, P.R.; Sims, K.W.W.

    2009-10-01

    Late Quaternary, post-shield lavas from the Mauna Kea and Kohala volcanoes on the Big Island of Hawaii have been dated using the {sup 40}Ar/{sup 39}Ar and U-Th/He methods. The objective of the study is to compare the recently demonstrated U-Th/He age method, which uses basaltic olivine phenocrysts, with {sup 40}Ar/{sup 39}Ar ages measured on groundmass from the same samples. As a corollary, the age data also increase the precision of the chronology of volcanism on the Big Island. For the U-Th/He ages, U, Th and He concentrations and isotopes were measured to account for U-series disequilibrium and initial He. Single analyses U-Th/He ages for Hamakua lavas from Mauna Kea are 87 {+-} 40 ka to 119 {+-} 23 ka (2{sigma} uncertainties), which are in general equal to or younger than {sup 40}Ar/{sup 39}Ar ages. Basalt from the Polulu sequence on Kohala gives a U-Th/He age of 354 {+-} 54 ka and a {sup 40}Ar/{sup 39}Ar age of 450 {+-} 40 ka. All of the U-Th/He ages, and all but one spurious {sup 40}Ar/{sup 39}Ar ages conform to the previously proposed stratigraphy and published {sup 14}C and K-Ar ages. The ages also compare favorably to U-Th whole rock-olivine ages calculated from {sup 238}U - {sup 230}Th disequilibria. The U-Th/He and {sup 40}Ar/{sup 39}Ar results agree best where there is a relatively large amount of radiogenic {sup 40}Ar (>10%), and where the {sup 40}Ar/{sup 36}Ar intercept calculated from the Ar isochron diagram is close to the atmospheric value. In two cases, it is not clear why U-Th/He and {sup 40}Ar/{sup 39}Ar ages do not agree within uncertainty. U-Th/He and {sup 40}Ar/{sup 39}Ar results diverge the most on a low-K transitional tholeiitic basalt with abundant olivine. For the most alkalic basalts with negligible olivine phenocrysts, U-Th/He ages were unattainable while {sup 40}Ar/{sup 39}Ar results provide good precision even on ages as low as 19 {+-} 4 ka. Hence, the strengths and weaknesses of the U-Th/He and {sup 40}Ar/{sup 39}Ar methods are

  1. Active Noise Control of the Heavy Truck Interior Cab

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    In order to control the noise of the heavy truck interior cab effectively, the active noise control methods are employed. First, an interior noise field test for the heavy truck is performed, and frequencies of interior noise of this vehicle are analyzed. According to the spectrum analysis of acquired noise signal, it is found out that the main frequencies of interior noise are less than 800Hz. Then the least squares lattice (LSL) algorithm is used as signal processing algorithm of the controller and a closed-loop control DSP system, based on TMS 320VC5416, is developed. The residual signal at driver's ear is used as feedback signal. Lastly, the developed ANC system is loaded into the heavy truck cab, and controlling the noise at driver's ear for that truck at different driving speeds is attempted. The noise control test results indicate that the cab interior noise is reduced averagely by 0.9 dBA at different driving speeds.

  2. Exhumation history of the NW Indian Himalaya revealed by fission track and 40Ar/39Ar ages

    Science.gov (United States)

    Schlup, M.; Steck, A.; Carter, A.; Cosca, M.; Epard, J.-L.; Hunziker, J.

    2011-01-01

    New fission track and Ar/Ar geochronological data provide time constraints on the exhumation history of the Himalayan nappes in the Mandi (Beas valley) - Tso Morari transect of the NW Indian Himalaya. Results from this and previous studies suggest that the SW-directed North Himalayan nappes were emplaced by detachment from the underthrusted upper Indian crust by 55. Ma and metamorphosed by ca. 48-40. Ma. The nappe stack was subsequently exhumed to shallow upper crustal depths (Elsevier Ltd.

  3. Exhumation history of the NW Indian Himalaya revealed by fission track and 40Ar/39Ar ages

    Science.gov (United States)

    Schlup, Micha; Steck, Albrecht; Carter, Andrew; Cosca, Michael; Epard, Jean-Luc; Hunziker, Johannes

    2011-01-01

    New fission track and Ar/Ar geochronological data provide time constraints on the exhumation history of the Himalayan nappes in the Mandi (Beas valley) — Tso Morari transect of the NW Indian Himalaya. Results from this and previous studies suggest that the SW-directed North Himalayan nappes were emplaced by detachment from the underthrusted upper Indian crust by 55 Ma and metamorphosed by ca. 48–40 Ma. The nappe stack was subsequently exhumed to shallow upper crustal depths (

  4. 40Ar-39Ar age of a lava flow from the Bhimashankar Formation, Giravali Ghat, Deccan Traps

    Indian Academy of Sciences (India)

    Kanchan Pande; S K Pattanayak; K V Subbarao; P Navaneethakrishnan; T R Venkatesan

    2004-12-01

    We report here a 40Ar-39Ar age of 66.0 ± 0.9Ma (2 ) for a reversely magnetised tholeiitic lava flow from the Bhimashankar Formation (Fm.), Giravali Ghat, western Deccan province, India. This age is consistent with the view that the 1.8–2km thick bottom part of the exposed basalt flow sequence in the Western Ghats was extruded very close to 67.4 Ma.

  5. The mass of sup 3 sup 2 Ar and sup 3 sup 3 Ar for fundamental tests

    CERN Document Server

    Blaum, K; Beck, D; Bollen, G; Herfurth, F; Kellerbauer, A G; Kluge, H J; Sauvan, E; Schwarz, S

    2003-01-01

    Masses of the short-lived radionuclides sup 3 sup 2 Ar (T sub 1 sub / sub 2 = 98 ms) sup 3 sup 3 Ar (T sub 1 sub / sub 2 = 173 ms) have been determined with the Penning trap mass spectrometer ISOLTRAP. Relative uncertainties of 6.0 x 10 sup - sup 8 (delta m = 1.8 keV) and 1.4 x 10 sup - sup 8 (delta m = 0.44 keV), respectively, have been achieved. At present, these new mass data serve as the most stringent test of the quadratic form of the isobaricmultiplet mass equation IMME. Furthermore, the improved accuracy for the mass of sup 3 sup 2 Ar yields a better constraint on scalar contributions to the weak interaction. New mass values have also been measured for sup 4 sup 4 Ar and sup 4 sup 5 Ar, and a 20 sigma deviation for sup 4 sup 4 Ar from the literature value was found and interpreted.

  6. Ar-40/Ar-39 Ages for Maskelynites and K-Rich Melt from Olivine-Rich Lithology in (Kanagawa) Zagami

    Science.gov (United States)

    Park, J.; Herzog, G. F.; Nyquist, L. E.; Lindsay, F.; Turrin, B.; Swisher, C. C., III; Delaney, J. S.; Shih, C.-Y.; Niihara, T.; Misawa, K.

    2013-01-01

    We report Ar/Ar release patterns for small maskelynite grains and samples of a K-rich phase separated from the basaltic shergottite Zagami. The purpose of the work is to investigate the well-known discrepancy between published Ar/Ar ages of Zagami, >200 Ma, and its age of approx. 170 Ma as determined by other methods [1-6]. Niihara et al. [7] divide less abundant darker material present in Zagami into an olivine-rich lithology (ORL), from which most of our samples came, and a pyroxene-rich one (Dark Mottled-Lithology: DML) [8, 9]. ORL consists of vermicular fayalitic olivine, coarse-grained pyroxene, maskelynite, and a glassy phase exceptionally rich in K (up to 8.5 wt%), Al, and Si, but poor in Fe and Mg. The elemental composition suggests a late-stage melt, i.e., residual material that solidified late in a fractional crystallization sequence. Below we refer to it as "K-rich melt." The K-rich melt contains laths of captured olivine, Ca-rich pyroxene, plagioclase, and opaques. It seemed to offer an especially promising target for Ar-40/Ar-39 dating.

  7. New methodologies at PF AR-NW12A: the implementation of high-pressure macromolecular crystallography

    Energy Technology Data Exchange (ETDEWEB)

    Chavas, Leonard Michel Gabriel, E-mail: leonard.chavas@kek.jp [PF/IMSS/KEK, 1-1 Oho, Tsukuba, Ibaraki 300-0801 (Japan); Nagae, Tadayuki [Nagoya University, Nagoya, Aichi 464-8603 (Japan); Nagoya University, Nagoya, Aichi 464-8603 (Japan); Yamada, Hiroyuki [Nagoya University, Nagoya, Aichi 464-8603 (Japan); Watanabe, Nobuhisa [Nagoya University, Nagoya, Aichi 464-8603 (Japan); Nagoya University, Furo-cho Chikusa-ku, Nagoya, Aichi 464-8603 (Japan); Yamada, Yusuke; Hiraki, Masahiko; Matsugaki, Naohiro [PF/IMSS/KEK, 1-1 Oho, Tsukuba, Ibaraki 300-0801 (Japan)

    2013-11-01

    The evolution of AR-NW12A into a multi-purpose end-station with optional high-pressure crystallography is described. The macromolecular crystallography (MX) beamline AR-NW12A is evolving from its original design of high-throughput crystallography to a multi-purpose end-station. Among the various options to be implemented, great efforts were made in making available high-pressure MX (HPMX) at the beamline. High-pressure molecular biophysics is a developing field that attracts the interest of a constantly growing scientific community. A plethora of activities can benefit from high pressure, and investigations have been performed on its applicability to study multimeric complex assemblies, compressibility of proteins and their crystals, macromolecules originating from extremophiles, or even the trapping of higher-energy conformers for molecules of biological interest. Recent studies using HPMX showed structural hydrostatic-pressure-induced changes in proteins. The conformational modifications could explain the enzymatic mechanism differences between proteins of the same family, living at different environmental pressures, as well as the initial steps in the pressure-denaturation process that have been attributed to water penetration into the protein interior. To facilitate further HPMX, while allowing access to various individualized set-ups and experiments, the AR-NW12A sample environment has been revisited. Altogether, the newly added implementations will bring a fresh breath of life to AR-NW12A and allow the MX community to experiment in a larger set of fields related to structural biology.

  8. Optical Emission Spectroscopic Studies of ICP Ar Plasma

    Institute of Scientific and Technical Information of China (English)

    QI Xuelian; REN Chunsheng; ZHANG Jian; MA Tengcai

    2007-01-01

    The ion line of 434.8 nm and atom line of 419.8 nm of Ar plasma produced by an inductively coupled plasma (ICP) were measured by optical emission spectroscopy and the influences from the working gas pressure, radio-frequency (RF) power and different positions in the discharge chamber on the line intensities were investigated in this study. It was found that the intensity of Ar atom line increased firstly and then saturated with the increase of the pressure. The line intensity of Ar+, on the other hand, reached a maximum value and then decreased along with the pressure. The intensity of the line in an RF discharge also demonstrated a jumping mode and a hysteresis phenomenon with the RF power. When the RF power increased to 400 W, the discharge jumped from the E-mode to the H-mode where the line intensity of Ar atom demonstrated a sudden increase, while the intensity of Ar+ ion only changed slightly. If the RF power decreased from a high value, e.g., 1000 W, the discharge would jump from the H-mode back to the E-mode at a power of 300 W. At this time the intensities of Ar and Ar+ lines would also decrease sharply. It was also noticed in this paper that the intensity of the ion line depended on the detective location in the chamber, namely at the bottom of the chamber the line was more intense than that in the middle of the chamber, but less intense than at the top, which is considered to be related to the capacitance coupling ability of the ICP plasma in different discharge areas.

  9. Acoustic Resonance Spectroscopy (ARS) Munition Classification System enhancements. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Vela, O.A.; Huggard, J.C.

    1997-09-18

    Acoustic Resonance Spectroscopy (ARS) is a non-destructive evaluation technology developed at the Los Alamos National Laboratory (LANL). This technology has resulted in three generations of instrumentation, funded by the Defense Special Weapons Agency (DSWA), specifically designed for field identification of chemical weapon (CW) munitions. Each generation of ARS instrumentation was developed with a specific user in mind. The ARS1OO was built for use by the U.N. Inspection Teams going into Iraq immediately after the Persian Gulf War. The ARS200 was built for use in the US-Russia Bilateral Chemical Weapons Treaty (the primary users for this system are the US Onsite Inspection Agency (OSIA) and their Russian counterparts). The ARS300 was built with the requirements of the Organization for the Prohibition of Chemical Weapons (OPCW) in mind. Each successive system is an improved version of the previous system based on learning the weaknesses of each and, coincidentally, on the fact that more time was available to do a requirements analysis and the necessary engineering development. The ARS300 is at a level of development that warrants transferring the technology to a commercial vendor. Since LANL will supply the computer software to the selected vendor, it is possible for LANL to continue to improve the decision algorithms, add features where necessary, and adjust the user interface before the final transfer occurs. This paper describes the current system, ARS system enhancements, and software enhancements. Appendices contain the Operations Manual (software Version 3.01), and two earlier reports on enhancements.

  10. Interior's Climate Science Centers: Focus or Fail

    Science.gov (United States)

    Udall, B.

    2012-12-01

    After a whirlwind two years of impressive and critical infrastructure building, the Department of Interior's Climate Science Centers are now in a position to either succeed or fail. The CSCs have a number of difficult structural problems including too many constituencies relative to the available resources, an uneasy relationship among many of the constituencies including the DOI agencies themselves, a need to do science in a new, difficult and non-traditional way, and a short timeframe to produce useful products. The CSCs have built a broad and impressive network of scientists and stakeholders. These entities include science providers of the universities and the USGS, and decision makers from the states, tribes, DOI land managers and other federal agencies and NGOs. Rather than try to support all of these constituencies the CSCs would be better served by refocusing on a core mission of supporting DOI climate related decision making. The CSCs were designed to service the climate science needs of DOI agencies, many of which lost their scientific capabilities in the 1990s due to a well-intentioned but ultimately harmful re-organization at DOI involving the now defunct National Biological Survey. Many of these agencies would like to have their own scientists, have an uneasy relationship with the nominal DOI science provider, the USGS, and don't communicate effectively among themselves. The CSCs must not succumb to pursuing science in either the traditional mode of the USGS or in the traditional mode of the universities, or worse, both of them. These scientific partners will need to be flexible, learn how to collaborate and should expect to see fewer resources. Useful CSC processes and outputs should start with the recommendations of the 2009 NRC Report Informing Decisions in a Changing Climate: (1) begin with users' needs; (2) give priority to process over products; (3) link information producers and users; (4) build connections across disciplines and organizations

  11. Ar-40-Ar-39 Age of an Impact-Melt Lithology in Lunar Meteorite Dhofar 961

    Science.gov (United States)

    Cohen, Barbara; Frasl, Barbara; Jolliff, Brad; Korotev, Randy; Zeigler, Ryan

    2016-01-01

    The Dhofar 961 lunar meteorite was found in 2003 in Oman. It is texturally paired with Dhofar 925 and Dhofar 960 (though Dhofar 961 is more mafic and richer in incompatible elements). Several lines of reasoning point to the South Pole-Aitken Basin (SPA) basin as a plausible source (Figure 2): Mafic character of the melt-breccia lithic clasts consistent the interior of SPA, rules out feldspathic highlands. Compositional differences from Apollo impact-melt groups point to a provenance that is separated and perhaps far distant from the Procellarum KREEP Terrane SPA "hot spots" where Th concentrations reach 5 ppm and it has a broad "background" of about 2 ppm, similar to lithic clasts in Dhofar 961 subsamples If true, impact-melt lithologies in this meteorite may be unaffected by the Imbrium-forming event that is pervasively found in our Apollo sample collection, and instead record the early impact history of the Moon.

  12. 40Ar/39Ar dating of the Honghuaqiao Formation in SE China

    Science.gov (United States)

    Chang, S.; Zhang, H.; Hemming, S. R.; Mesko, G. T.; Fang, Y.

    2010-12-01

    The Jehol Biota, defined as the characteristic Eosestheria-Ephemeropsis-Lycoptera assemblage (Grabau, 1923, Bulletin of the Geological Survey of China), is widely distributed in eastern and central Asia (Li et al., 1982, Acta Geologica Sinica; Chen, 1988, Acta Palaeontologica Sinica). Abundant and varied fossils of the terrestrial Jehol Biota, including plants, insects, dinosaurs, birds, mammals, and freshwater invertebrates, have been discovered from the Dabeigou, the Yixian and the Jiufotang Formations (or their correlative strata) in northeast China from the Liaoning and Hebei Provinces and Inner Mongolia (Chen and Jin, 1999, Acta Palaeontologica Sinica). In addition, strata that may be correlative with the classic Jehol fossil-bearing formations have been identified extensively in central and eastern China, the Korean Peninsula, Mongolia, and Siberia. In the past three decades mollusk, conchostracan, ostracod, insect, fish, and plant fossils from localities in southeastern China, interpreted as related to the Jehol biota of the northeast, have been found (Mateer and Chen, 1986, Cretaceous Research; Li, 2003, Chinese Science Bulletin; Chen, Li and Batten, 2007, Geological Journal). However, a detailed correlation between the classic Jehol outcrops and the more recently found localities to the South and West has yet to emerge. Volcanic rocks from the Honghuaqiao fossil-bearing Formation in Tuzhou City of eastern Anhui Province, southeastern China provide an excellent opportunity to rectify this situation. Preliminary results of a pilot study suggest that the Honghuaqiao Formation is equivalent to the Longwanshan Formation of Anhui Province, southeastern China and the Yixian Formation, northeastern China (Chang et al., 2009, AGU abstract). Initial 40Ar/39Ar results indicate that conchostracans from the upper Honghuaqiao Formation are approximately 130 Ma. Our ongoing work aims to establish a high-resolution chronostratigraphy for Tuzhou City in Anhui Province

  13. Decline of forest interior conditions in the conterminous United States

    OpenAIRE

    Riitters, Kurt H.; James D. Wickham

    2012-01-01

    Forest fragmentation threatens the sustainability of forest interior environments, thereby endangering subordinate ecological attributes and functions. We analyzed the spatial patterns of forest loss and gain for the conterminous United States from 2001 to 2006 to determine whether forest interior environments were maintained at five spatial scales. A 1.1% net loss of total forest area translated to net losses of 3.2% to 10.5% of forest interior area over spatial scales of 4.41 ha to 5,310 ha...

  14. Penalized interior point approach for constrained nonlinear programming

    Institute of Scientific and Technical Information of China (English)

    LU Wen-ting; YAO Yi-rong; ZHANG Lian-sheng

    2009-01-01

    A penalized interior point approach for constrained nonlinear programming is examined in this work. To overcome the difficulty of initialization for the interior point method, a problem equivalent to the primal problem via incorporating an auxiliary variable is constructed. A combined approach of logarithm barrier and quadratic penalty function is proposed to solve the problem. Based on Newton's method, the global convergence of interior point and line search algorithm is proven.Only a finite number of iterations is required to reach an approximate optimal solution. Numerical tests are given to show the effectiveness of the method.

  15. {sup 40}Ar-{sup 39}Ar dating of terrestrial and exterrestrial materials. Basalts from the Japan Sea floor, Deccan Plateau and meteorites from Antarctica

    Energy Technology Data Exchange (ETDEWEB)

    Kaneoka, Ichiro [Tokyo Univ. (Japan). Earthquake Research Inst.; Takigami, Yutaka

    1994-09-01

    Through a series of {sup 40}Ar-{sup 39}Ar dating for terrestrial and exterrestrial samples, the results for basalts from the Japan Sea floor, Deccan Plateau and for meteorites from Antarctica give significant information concerning their formation histories. {sup 40}Ar-{sup 39}Ar ages of basalts from the Japan Sea floor give a constraint that the Japan Sea floor was formed at least 20 Ma. {sup 40}Ar-{sup 39}Ar ages for dyke samples from the Deccan Plateau indicate a possibility for the occurrence of a little younger ages than that of the main plateau formations by a few million years. Meteorites collected from Antarctica show some variable {sup 40}Ar-{sup 39}Ar ages reflecting their different thermal histories. (author).

  16. Analysis of Intensity Fluctuations of SASE using the AR Model

    CERN Document Server

    Kato, Ryukou; Isoyama, Goro; Kashiwagi, Shigeru; Okamoto, C; Suemine, Shoji; Yamamoto, Tamotsu

    2004-01-01

    We are conducting experimental study on Self-Amplified Spontaneous Emission (SASE) in the far-infrared region using the L-band linac at the Institute of Scientific and Industrial Research (ISIR), Osaka University. The intensity of SASE fluctuates intrinsically because the number of coherent optical pulses generated in an electron bunch is limited. In the actual system, however, another factor producing intensity fluctuations also shows up, which is instability of the linac. Generally speaking, it is difficult to distinguish contributions of these two factors in measured intensity fluctuations. We have applied the autoregressive (AR) model, which is one of the techniques of statistical analysis, to exclude contributions of linac instability from measured data. In the AR model, the present data can be expressed with a linear combination of the past data plus white noise. In the analysis, contributions of the linac instability are identified with the AR model and can be subtracted from the measured data of SASE,...

  17. Effects of AR Antagonist on Myocardial α1-AR Density and VERP-D after Myocardial Infarction

    Institute of Scientific and Technical Information of China (English)

    Zhang Jingmin; Wu Wei; Fang Chang; Zhang Yan; Wang Jingfeng

    2004-01-01

    Objectives To investigate the effects of adrenergic receptor antagonist ( metoprolol or prazosin) on myocardial α1-AR density and the changes of ventricular effective refractory period dispersion (VERP-D) in rabbits after myocardial infarction.Methods twenty-four adult male New Zealand rabbits were divided into four groups at random: control group ( n = 6 ); MI with placebo group ( n = 6 ); MI with metoprolol group (n = 6 ) ; MI with prazosin group (n = 6 ). The rabbits received corresponding drugs for seven days, beginning at the first day after MI and myocardial α1-AR density were measured and meanwhile, myocardial β-AR was also measured.Results In the placebo group, the density of ventricular α1-AR was increased in comparison with control group ( α1 -AR in normal region 36.9 ± 0.2 vs 27.3 ±0.9 fmol mg-1 Pro-1 ,p <0.01; α1-AR in ischemic region 33.0±0.9 vs 26.6 ±0.4 fmol mg-1 pro-1 P <0.01). In the metoprolol group, it was also increased in comparison with control group( α1-AR in normal region 44.7 ±1.5 vs 27.3 ±0.9 fmol mg-1 pro-1 ,P <0.01; α1-AR in ischemic region 33.6 ± 0.5 vs 26.6 ± 0.4 fmol mg-1pro-1 , P < 0.01 ). Meanwhile the density of ventricular α1-AR in normal region in the metoprolol group was increased in comparison with placebo group (44.7 ±1.5 vs 36.9 ±0.2 fmol mg-1 pro-1,P<0.01). While it decreased in the prazosin group in comparison with control group ( α1-AR in normal region 22.5 ± 0.6 vs27.3 ±0.9 fmol mg-1pro-1 ,P <0.01; α1-AR in ischemic region 20.9 ±0.4 vs 26.6 ±0.4 fmol mg-1 pro-1,P <0.01 ). VERP-D was increased after MI(P <0.01 ).After treatment with metoprolol or prazosin, VERP-D was decreased ( P < 0.01 ). Conclusions After acute MI, α1-AR of ventricular myocardium was upregulated, which may be accompanied by its activitation.The density of myocardial α1-AR became upregulated more dramatically treated with metoprolol and downregulated with prazosin. When treated with metoprolol or prazosin

  18. A model for meteoritic and lunar 40Ar/39Ar age spectra: Addressing the conundrum of multi-activation energies

    Science.gov (United States)

    Boehnke, P.; Harrison, T. Mark; Heizler, M. T.; Warren, P. H.

    2016-11-01

    Results of whole-rock 40Ar/39Ar step-heating analyses of extra-terrestrial materials have been used to constrain the timing of impacts in the inner solar system, solidification of the lunar magma ocean, and development of planetary magnetic fields. Despite the importance of understanding these events, the samples we have in hand are non-ideal due to mixed provenance, isotopic disturbances from potentially multiple heating episodes, and laboratory artifacts such as nuclear recoil. Although models to quantitatively assess multi-domain, diffusive 40Ar* loss have long been applied to terrestrial samples, their use on extra-terrestrial materials has been limited. Here we introduce a multi-activation energy, multi-diffusion domain model and apply it to 40Ar/39Ar temperature-cycling, step-heating data for meteoritic and lunar samples. We show that age spectra of extra-terrestrial materials, the Jilin chondrite (K-4) and Apollo 16 lunar breccia (67514 , 43), yielding seemingly non-ideal behavior commonly interpreted as either laboratory artifacts or localized shock heating of pyroxene, are meaningful and can be understood in context of the presence of multi-diffusion domains containing multiple activation energies. Internally consistent results from both the meteoritic and lunar samples reveal high-temperature/short duration thermal episodes we interpret as due to moderate shock heating.

  19. Pengenalan Teori Servicescape dan Penerapannya dalam Desain Interior

    Directory of Open Access Journals (Sweden)

    Ulli Aulia Ruki

    2011-09-01

    Full Text Available The reason of constructing the building facility is to facilitate users activity and service. The article purpose is to introduce servicescape concept as a part of route that could be used to measure users satisfaction level towards interior facility by giving additional value in selling goods and services in the building. Servicescape theory is one physical prove that could influence somebodys point of view about physical environment in a commercial facility. Some points discussed in servicescape are style, design, sign, space layout, function, and ambient condition. Method used is literature study from some books along with illustration analysis related to commercial facility interior. The expected result is to give point of view from servicescape theory that could be applied by an interior design in defining design concept especially related to commercial facility. The conclusion showed some points in servicescape theory that could be used to direct and deliver the designer to design concept decision that would satisfy facility interior users.

  20. Amount of Future Forest Interior at a 2 Hectare Scale

    Data.gov (United States)

    U.S. Environmental Protection Agency — Forests provide economic and ecological value. High amounts of forest interior indicates a highly connected forest, which generally enhances those economic and...

  1. Advanced Acoustic Blankets for Improved Aircraft Interior Noise Reduction Project

    Data.gov (United States)

    National Aeronautics and Space Administration — In this project advanced acoustic blankets for improved low frequency interior noise control in aircraft will be developed and demonstrated. The improved performance...

  2. Connecting horizon pixels and interior voxels of a black hole

    CERN Document Server

    Nicolini, Piero

    2014-01-01

    In this paper we discuss to what extent one can infer details of the interior structure of a black hole based on its horizon. Recalling that black hole thermal properties are connected to the non-classical nature of gravity, we circumvent the restrictions of the no hair theorem by postulating that the black hole interior is singularity free due to violations of the usual energy conditions. Further these conditions allow one to establish a one-to-one, holographic projection between Planckian areal "bits" on the horizon and "voxels", representing the gravitational degrees of freedom in the black hole interior. We illustrate the repercussions of this idea by discussing an example of the black hole interior consisting of a de Sitter core postulated to arise from the local graviton quantum vacuum energy. It is shown that the black hole entropy can emerge as the statistical entropy of a gas of voxels.

  3. Hybrid Prediction Method for Aircraft Interior Noise Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This proposal discusses the development and application of new methods of structural-acoustic analysis in order to address existing problems in aircraft interior...

  4. Morphology and Disease Information from Waterfowl, Interior Alaska, 2010

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This data set includes data from five waterfowl species (northern pintail, American wigeon, lesser scaup, green-winged teal and mallard) that were captured in...

  5. Connecting horizon pixels and interior voxels of a black hole

    Energy Technology Data Exchange (ETDEWEB)

    Nicolini, Piero, E-mail: nicolini@fias.uni-frankfurt.de [Frankfurt Institute for Advanced Studies (FIAS), Ruth-Moufang-Str. 1, 60438 Frankfurt am Main (Germany); Institut für Theoretische Physik, J.W. Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt am Main (Germany); Singleton, Douglas, E-mail: dougs@csufresno.edu [Department of Physics, California State University, Fresno, CA 93740-8031 (United States); Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Apartado Postal 70-543, Distrito Federal, 04510 (Mexico)

    2014-11-10

    In this paper we discuss to what extent one can infer details of the interior structure of a black hole based on its horizon. Recalling that black hole thermal properties are connected to the non-classical nature of gravity, we circumvent the restrictions of the no-hair theorem by postulating that the black hole interior is singularity free due to violations of the usual energy conditions. Further these conditions allow one to establish a one-to-one, holographic projection between Planckian areal “bits” on the horizon and “voxels”, representing the gravitational degrees of freedom in the black hole interior. We illustrate the repercussions of this idea by discussing an example of the black hole interior consisting of a de Sitter core postulated to arise from the local graviton quantum vacuum energy. It is shown that the black hole entropy can emerge as the statistical entropy of a gas of voxels.

  6. Decline of forest interior conditions in the conterminous United States

    Science.gov (United States)

    Forest fragmentation threatens the sustainability of forest interior environments, thereby endangering subordinate ecological attributes and functions. We analyzed the spatial patterns of forest disturbance and recovery for the conterminous United States from 2001 to 2006 to det...

  7. Vehicle Interior Noise Prediction Using Energy Finite Element Analysis Project

    Data.gov (United States)

    National Aeronautics and Space Administration — It is proposed to develop and implement a computational technique based on Energy Finite Element Analysis (EFEA) for interior noise prediction of advanced aerospace...

  8. Vehicle Interior Noise Prediction Using Energy Finite Element Analysis Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Prediction and enhancement of vehicle interior noise due to high frequency excitation, based on computer simulation, allows the application of the technology at the...

  9. Axenfeld-Rieger syndrome (ARS): A review and case report.

    LENUS (Irish Health Repository)

    Waldron, Jennie M

    2011-08-29

    Axenfeld-Rieger syndrome (ARS) is a rare, autosomal dominant condition characterized by ocular, craniofacial, dental, and periumbilical abnormalities. Relatively little information exists on this syndrome within the dental literature despite the fact that midface hypoplasia and maxillary hypodontia are classical presenting features of this syndrome. This is a case report of a 7-year-old Caucasian female with ARS who presented with significant ocular and dental anomalies. She was also found to have osteopenia. Her dental condition is described, her immediate treatment is shown, and her long-term treatment needs are discussed.

  10. Interatomic scattering in energy dependent photoelectron spectra of Ar clusters

    Energy Technology Data Exchange (ETDEWEB)

    Patanen, M.; Benkoula, S.; Nicolas, C.; Goel, A. [Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex (France); Antonsson, E. [Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex (France); Physikalische und Theoretische Chemie Institut für Chemie und Biochemie, Fachbereich Biologie, Chemie, Pharmazie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin (Germany); Neville, J. J. [Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex (France); Department of Chemistry, University of New Brunswick, Fredericton, New Brunswick E3B 6E2 (Canada); Miron, C., E-mail: Catalin.Miron@synchrotron-soleil.fr [Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex (France); Extreme Light Infrastructure - Nuclear Physics (ELI-NP), ‘Horia Hulubei’ National Institute for Physics and Nuclear Engineering, 30 Reactorului Street, RO-077125 Măgurele, Jud. Ilfov (Romania)

    2015-09-28

    Soft X-ray photoelectron spectra of Ar 2p levels of atomic argon and argon clusters are recorded over an extended range of photon energies. The Ar 2p intensity ratios between atomic argon and clusters’ surface and bulk components reveal oscillations similar to photoelectron extended X-ray absorption fine structure signal (PEXAFS). We demonstrate here that this technique allows us to analyze separately the PEXAFS signals from surface and bulk sites of free-standing, neutral clusters, revealing a bond contraction at the surface.

  11. β-delayed Multi-particle Emission From 31Ar

    Institute of Scientific and Technical Information of China (English)

    A. A. Ciemny; J. Du´enas-Daz; V. Dunin; J. M. Espino; A. Estrade; F. Farinon; A. Fomichev; H. Geisse; A. Gorshkov; G. Kami´nski; O. Kiselev; C. Mazzocchi; R. Kn¨obe; S. Krupko; M. Kuich; Yu. A. Litvinov; G. Marquinez-Dur´an; I. Martel; I. Mukha; C. Nociforo; A. K. Ord´uz; S. Pietri; W. Dominik; A. Prochazka; A. M. S´anchez-Ben´ıtez; H. Simon; B. Sitar; R. Slepnev; M. Stanoiu; P. Strmen; I. Szarka; M. Takechi; Y. Tanaka; Z. Janas; H. Weick; J. S. Winfield; M. Pf¨utzner; M. Pomorski; L. Acosta; S. Baraeva; E. Casarejos

    2016-01-01

    The β+ decay of 31Ar was investigated in an experiment at the GSI-FRS spectrometer. The ions of interest have been produced in the fragmentation of a 36Ar beam at 880 MeV/nucleon and implanted in a time projection chamber with optical readout. In addition to β-delayed one and two proton emission, for the first time the emission ofβ-delayed 3 protons has been observed. The branching ratio for this decay mode is found to be (0.07 ± 0.02)%.

  12. Adsorption of Ar on a nonuniform MgO surface

    Science.gov (United States)

    Hinman, D. C.; Halsey, G. D.

    1976-01-01

    Data are presented for the adsorption of Ar and N2 on a strongly heterogeneous MgO surface at 84 K and for Ar at a range of temperatures between 130 and 250 K. The high-temperature data are analyzed according to a model which separates the contributions to the potential into bulk and surface terms, providing a method for the determination of the surface area from parameters characteristic of the bulk material. A solid-gas energy parameter and parameters indicating the strength of the impurity sites are also evaluated.

  13. Development of a low-level Ar-37 calibration standard

    CERN Document Server

    Williams, R M; Bowyer, T W; Day, A R; Fuller, E S; Haas, D A; Hayes, J C; Hoppe, E W; Humble, P H; Keillor, M E; LaFerriere, B D; Mace, E K; McIntyre, J I; Miley, H S; Myers, A W; Orrell, J L; Overman, C T; Panisko, M E; Seifert, A

    2016-01-01

    Argon-37 is an environmental signature of an underground nuclear explosion. Producing and quantifying low-level Ar-37 standards is an important step in the development of sensitive field measurement instruments. This paper describes progress at Pacific Northwest National Laboratory in developing a process to generate and quantify low-level Ar-37 standards, which can be used to calibrate sensitive field systems at activities consistent with soil background levels. This paper presents a discussion of the measurement analysis, along with assumptions and uncertainty estimates.

  14. A Knock-in Reporter for a Novel AR-Targeted Therapy

    Science.gov (United States)

    2016-05-01

    MK, Gursoy-Yuzugullu O, Xu C, Xu Y, Price BD. DNA double-strand breaks promote methylation of histone H3 on lysine 9 and transient formation of...carrying FLuc in the AR gene locus and thereby bicistronically co-expressing the reporter gene with AR under the control of the endogenous AR promoter and...AR gene under the control of the endogenous AR promoter and enhancer. Such a knock-in reporter can faithfully reproduce chemical responses of the

  15. Ergonomic analysis for a regional aircraft interior design.

    OpenAIRE

    Flavia Renata Dantas Alves Silva

    2007-01-01

    The purpose of this work is to develop a preliminary interior design of a regional aircraft considering ergonomic and cost aspects. The use of virtual humans provides a better interpretation of the aircraft interior environment, making possible to simulate movements and passenger comfort aspects. The importance of this study becomes evident through the necessity of the aircraft manufacturer of predicting human behavior during all the flight phases. This text also aims to present the difficult...

  16. Design for subjective well-being in interior architecture

    OpenAIRE

    Petermans, A.; Pohlmeyer, A.E.

    2014-01-01

    Can interior environments engage people in pleasurable and meaningful experiences and thereby have a positive influence on their happiness? This paper discusses why and how interior architects might want to consider implementing ideas in relation to ‘design for subjective well-being’. Despite of people being the ingredients that bring life to the built environment, it tends to be designed in such a way for them to predominantly only passively absorb the surrounding. Up to date, when desig...

  17. Interior microelectrolysis oxidation of polyester wastewater and its treatment technology.

    Science.gov (United States)

    Yang, Xiaoyi

    2009-09-30

    This paper has investigated the effects of interior microelectrolysis pretreatment on polyester wastewater treatment and analyzed its mechanism on COD and surfactant removal. The efficiency of interior microelectrolysis is mainly influenced by solution pH, aeration and reaction time. Contaminants can be removed not only by redox reaction and flocculation in the result of ferrous and ferric hydroxides but also by electrophoresis under electric fields created by electron flow. pH confirms the chemical states of surfactants, Fe(II)/Fe(III) ratio and the redox potential, and thus influences the effects of electrophoresis, flocculation and redox action on contaminant removal. Anaerobic and aerobic batch tests were performed to study the degradation of polyester wastewater. The results imply that interior microelectrolysis and anaerobic pretreatment are lacking of effectiveness if applied individually in treating polyester wastewater in spite of their individual advantages. The interior microelectrolysis-anaerobic-aerobic process was investigated to treat polyester wastewater with comparison with interior microelectrolysis-aerobic process and anaerobic-aerobic process. High COD removal efficiencies have been gotten by the combination of interior microelectrolysis with anaerobic technology and aerobic technology. The results also imply that only biological treatment was less effective in polyester wastewater treatment.

  18. Thermal plasma properties for Ar-Al, Ar-Fe and Ar-Cu mixtures used in welding plasmas processes: I. Net emission coefficients at atmospheric pressure

    Science.gov (United States)

    Cressault, Y.; Gleizes, A.

    2013-10-01

    This article is devoted to the calculation of the net emission coefficient (NEC) of Ar-Al, Ar-Fe and Ar-Cu mixtures at atmospheric pressure for arc welding processes. The results are given in data tables for temperatures between 3 kK and 30 kK, for five plasma thicknesses (0, 0.5, 1, 2, 5 mm) and ten concentrations of metallic vapours (pure gas, 0.01%, 0.1%, 1%, 5%, 10%, 25%, 50%, 75% and pure metal vapours in mass proportions). The results are in good agreement with most of the works published on the subject for such mixtures. They highlight the influence of three parameters on the radiation of the plasma: the NEC is directly related to temperature and inversely related to plasma radius and is highly sensitive to the presence of metal vapours. Finally, numerical data are supplied in tables in order to develop accurate computational modelling of welding arc and to estimate both qualitatively and quantitatively the influence of each metallic vapour on the size and on the shape of the weld pool.

  19. Transcriptional and posttranscriptional regulation of Bacillus sp. CDB3 arsenic-resistance operon ars1

    Directory of Open Access Journals (Sweden)

    Xuefei Yu

    2015-09-01

    Full Text Available Bacillus sp. CDB3 possesses a novel eight-gene ars cluster (ars1, arsRYCDATorf7orf8 with some unusual features in regard to expression regulation. This study demonstrated that the cluster is a single operon but can also produce a short three-gene arsRYC transcript. A hairpin structure formed by internal inverted repeats between arsC and arsD was shown to diminish the expression of the full operon, thereby probably acting as a transcription attenuator. A degradation product of the arsRYC transcript was also identified. Electrophoretic mobility shift analysis demonstrated that ArsR interacts with the ars1 promoter forming a protein-DNA complex that could be impaired by arsenite. However, no interaction was detected between ArsD and the ars1 promoter, suggesting that the CDB3 ArsD protein may not play a regulatory role. Compared to other ars gene clusters, regulation of the Bacillus sp. CDB3 ars1 operon is more complex. It represents another example of specific mRNA degradation in the transporter gene region and possibly the first case of attenuator-mediated regulation of ars operons.

  20. Petrografía y edad 40Ar/39Ar de leucogranitos peraluminosos al oeste de Valcheta: Macizo Nordpatagónico (Río Negro

    Directory of Open Access Journals (Sweden)

    Martín R. Gozalvez

    2009-04-01

    Full Text Available Entre la localidad rionegrina de Valcheta y la Estación Muster del ex ferrocarril Gral. Roca se localizan numerosos afloramientos de leucogranitos que en conjunto forman un cuerpo plutónico de bordes rectos y geometría elipsoidal, aquí denominado plutón Valcheta. El intrusivo mencionado forma parte del basamento ígneo-metamórfico del sector oriental del macizo nordpatagónico. El plutón Valcheta es un cuerpo leucogranítico, peraluminoso (A/CNK >1,1, de grano medio, levemente deformado en los bordes, compuesto por una facies leucogranítica con muscovita-biotita-granate y otra con muscovita-biotita. Las zonas de contacto con los esquistos de la Formación Nahuel Niyeu están cubiertas y en su interior presenta xenolitos de gneises y anfibolitas inyectados por material leucocrático. El estudio radimétrico 40Ar/39Ar en muscovita del plutón Valcheta resultó en una edad de 470 ± 1,8 Ma. Estos datos permiten descartar la correlación de rocas leucogranitcas aflorantes al noroeste de Valcheta con el Granito Flores de edad jurásica. El plutón Valcheta presenta diferencias macroscópicas, petrográficas, microestructurales y composicionales con los intrusivos ordovícicos del Complejo Plutónico Punta Sierra, aflorante sobre la costa atlántica rionegrina. En consecuencia, la extensión del magmatismo ordovícico del este del Macizo Nordpatagónico hasta las inmediaciones de Valcheta debe ser revisada. La morfología, mineralogía, rasgos microestructurales y geoquímica del plutón Valcheta se comparan favorablemente con los leucogranitos del Complejo Mina Gonzalito que forman los plutones Tapera y María Teresa. El pico metamórfico de dicho complejo, según dataciones U-Pb en circones, es del Ordovícico medio (472 ± 5 Ma. El plutón Valcheta es composicionalmente semejante a leucogranitos post-colisionales tipo S formados en una corteza engrosada.

  1. Additional 40Ar- 39Ar dating of the basement and the alkaline volcanism of Gorringe Bank (Atlantic Ocean)

    Science.gov (United States)

    Féraud, Gilbert; York, Derek; Mével, Catherine; Cornen, Guy; Hall, Chris M.; Auzende, Jean-Marie

    1986-09-01

    40Ar/ 39Ar step heating analyses are reported for a variety of samples from Gorringe Bank (Atlantic Ocean). Flat age spectra for two primary, igneous hornblendes of Gorringe (corresponding to an age of 143 Ma) show that the K-Ar ages obtained on these samples by Prichard and Mitchell [4] are evidently crystallization and not hybrid ages. This sustains the concept of an initiation age of 140 Ma [4] for Gorringe Bank. No support is found for Carpena's suggestion [7] that the formation of Gorringe Bank began 200 Ma ago. Secondary hornblendes from Ormonde seamount rocks appear to have formed shortly after the initiation of the Bank. Precise plateau ages on samples of two alkaline volcanics from Ormonde correspond to the older limit of the alkaline volcanism suggested by Féraud et al. [3,5].

  2. Characterization of the ars Gene Cluster from Extremely Arsenic-Resistant Microbacterium sp. Strain A33▿ †

    Science.gov (United States)

    Achour-Rokbani, Asma; Cordi, Audrey; Poupin, Pascal; Bauda, Pascale; Billard, Patrick

    2010-01-01

    The arsenic resistance gene cluster of Microbacterium sp. A33 contains a novel pair of genes (arsTX) encoding a thioredoxin system that are cotranscribed with an unusual arsRC2 fusion gene, ACR3, and arsC1 in an operon divergent from arsC3. The whole ars gene cluster is required to complement an Escherichia coli ars mutant. ArsRC2 negatively regulates the expression of the pentacistronic operon. ArsC1 and ArsC3 are related to thioredoxin-dependent arsenate reductases; however, ArsC3 lacks the two distal catalytic cysteine residues of this class of enzymes. PMID:19966021

  3. Thermal History of the Felsite Unit, Geysers Geothermal Field, From Thermal Modeling of 40Ar/39Ar Incremental Heating Data

    Energy Technology Data Exchange (ETDEWEB)

    T. M. Harrison (U of California); G. B. Dalrymple (Oregon State U); J. B. Hulen (U of Utah); M. A. Lanphere; M. Grove; O. M. Lovera

    1999-08-19

    An Ar-40/Ar-39 and U-Pb study was performed of the Geysers plutonic complex of the Geysers Geothermal Field in California. Sixty-nine ion microprobe spot analyses of zircons from four granite samples from the plutonic complex that underlies the Geysers geothermal field yielded Pb-207/Pb-206 vs. U-238/Pb-206 concordia ages ranging from 1.13 {+-} 0.04 Ma to 1.25 {+-} 0.04 Ma. The U-Pb ages coincide closely with Ar-40/Ar-39 age spectrum plateau and ''terminal'' ages from coexisting K-feldspars and with the eruption ages of overlying volcanic rocks. The data indicate that the granite crystallized at 1.18 Ma and had cooled below 350 C by {approximately}0.9-1.0 Ma. Interpretation of the feldspar Ar-40/Ar-39 age data using multi-diffusion domain theory indicates that post-emplacement rapid cooling was succeeded either by slower cooling from 350-300 C between 1.0 and 0.4 Ma or transitory reheating to 300-350 C at about 0.4-0.6 Ma. Heat flow calculations constrained with K-feldspar thermal histories and the pre sent elevated regional heal flow anomaly demonstrate that appreciable heat input from sources external to the known Geysers plutonic complex is required to maintain the geothermal system. This requirement is satisfied by either a large, underlying, convecting magma chamber (now solidified) emplaced at 1.2 Ma or episodic intrusion of smaller bodies from 1.2-0.6 Ma.

  4. Late Paleozoic deformation and exhumation in the Sierras Pampeanas (Argentina): 40Ar/39Ar-feldspar dating constraints

    Science.gov (United States)

    Löbens, Stefan; Oriolo, Sebastián; Benowitz, Jeff; Wemmer, Klaus; Layer, Paul; Siegesmund, Siegfried

    2016-09-01

    Systematic 40Ar/39Ar feldspar data obtained from the Sierras Pampeanas are presented, filling the gap between available high- (>~300 °C) and low-temperature (Pie de Palo regions, whereas the Sierras de San Luis and the Sierra de Comechingones regions record exhumation during the Carboniferous. Comparison between new and available data points to a Carboniferous tectonic event in the Sierras Pampeanas, which represents a key period to constrain the early evolution of the proto-Andean margin of Gondwana. This event was probably transtensional and played a major role during the evolution of the Paganzo Basin as well as during the emplacement of alkaline magmatism in the retroarc.

  5. Electron Scattering by Ar Atoms in a Laser Field

    Institute of Scientific and Technical Information of China (English)

    ZHANG Sheng-Hai; QIAN Xing-Zhong; JIANG Yu-Hai; SUN Jin-Feng

    2000-01-01

    The differentialcross sections of electron-Ar atom scattering for free-free transition with one and two photons absorption in the presence of CO2 laser field is obtained by the second Born approximation, the direction of laser polarization being perpendicular to the change of electron momentum. Compared with the more recent available experimental data, the present results are very good.

  6. Mälestusi "Ars Fennica'st" / Eha Komissarov

    Index Scriptorium Estoniae

    Komissarov, Eha, 1947-

    2009-01-01

    Ars Fennica 2008. aasta nominentide Tea Mäkipää, Seppo Renvalli, Maria Dunckeri, Katrīna Neiburga (Läti) ja Mark Raidpere näitus Kumu Kunstimuuseumis 26. aprillini. Preemiaga pärjati Mark Raidpere ekspositsioon

  7. Ars Fennica - isikliku ja poliitilise vahel / Janar Ala

    Index Scriptorium Estoniae

    Ala, Janar, 1979-

    2009-01-01

    2008. aasta Ars Fennica kunstiauhinna kandidaatide tööde näitus Kumu Kunstimuuseumis kuni 26. aprillini. Läti kunstniku Katrina Neiburga, soomlaste Seppo Renvalli, Maria Dunckeri ja Tea Mäkipää ning Mark Raidpere näitusel eksponeeritud töödest

  8. Big data computing: Building a vision for ARS information management

    Science.gov (United States)

    Improvements are needed within the ARS to increase scientific capacity and keep pace with new developments in computer technologies that support data acquisition and analysis. Enhancements in computing power and IT infrastructure are needed to provide scientists better access to high performance com...

  9. Atom trap trace analysis of {sup 39}Ar

    Energy Technology Data Exchange (ETDEWEB)

    Welte, Joachim

    2011-12-14

    Detection of {sup 39}Ar in natural water samples can be employed for radiometric dating on a timescale of 50 to 1000 years before present. This experimental work comprises the setup of an atomic beam and trap apparatus that captures and detects {sup 39}Ar atoms by the laser-cooling technique ''Atom Trap Trace Analysis''. With this approach, the limitations of low-level counting, regarding sample size and measurement time, could be overcome. In the course of this work, the hyperfine structure spectrum of the cooling transition 1s{sub 5}-2p{sub 9} has been experimentally determined. A high intensity, optically collimated beam of slow metastable argon atoms has been set up and fluorescence detection of individual {sup 39}Ar atoms in a magneto-optical trap is realized. {sup 39}Ar count rates of 1 atom in about 4 hours have been achieved for atmospheric argon. Recent improvements further suggest that even higher count rates of 1 atom/hour are within reach.

  10. The ARS Culture Collection and Developments in Biotechnology

    Science.gov (United States)

    The ARS Culture Collection (NRRL) has played a prominent role in the development of biotechnology since its founding in 1940 when the Northern Regional Research Laboratory opened. Early discoveries included selection of production strains for penicillin, dextran blood extender, xanthan gum and the v...

  11. Near-contact Binaries IZ Monocerotis and AR Draconis

    Science.gov (United States)

    Yang, Yuan-Gui; Dai, Hai-Feng; Zhou, Zheng; Li, Qun

    2016-05-01

    We present multi-color photometric observations for two neglected near-contact binaries, IZ Mon (P=0\\_\\_AMP\\_\\_fd;77980) and AR Dra (P=0\\_\\_AMP\\_\\_fd;67584). By the aid of the updated W-D analysis code, the photometric solutions were deduced from the multi-color light curves (LCs). IZ Mon is a semi-detached binary with a mass ratio of q=0.388(+/- 0.002), while AR Dra is a detached star with a mass ratio of q=0.652(+/- 0.002). The asymmetric LCs of IZ Mon were modeled by a hot spot on the secondary’s surface, which may be attributed to mass transfer from the primary. Based on all collected eclipse times for two systems, we constructed their timing residual curves. The orbital period for IZ Mon may be continuously decreasing at a rate of {dP}/{dt}=-2.06(+/- 0.04) {days} {{yr}}-1, which may result from mass and angular momentum loss from the central system. For AR Dra, there exists a cyclic variation with a period of {P}3=104.9(+/- 2.9) {yr} due to light-time orbit effect via the presence of the third body, whose mass is more than 0.28(+/- 0.02) {M}⊙ . Finally, two near-contact binaries, IZ Mon and AR Dra, will evolve into contact binaries.

  12. Multi-particle emission in the decay of $^{31}$Ar

    CERN Document Server

    Koldste, G T; Borge, M.J.G.; Briz, J.A.; Carmona-Gallardo, M.; Fraile, L.M.; Fynbo, H.O.U.; Giovinazzo, J.; Grann, B.D.; Johansen, J.G.; Jokinen, A.; Jonson, B.; Kurturkian-Nieto, T.; Kusk, J.H.; Nilsson, T.; Perea, A.; Pesudo, V.; Picado, E.; Riisager, K.; Saastamoinen, A.; Tengblad, O.; Thomas, J.C.; Van de Walle, J.

    2014-01-01

    A multi-hit capacity setup was used to study the decay of the dripline nucleus 31Ar, produced at the ISOLDE facility at CERN. A spectroscopic analysis of the beta-delayed three-proton decay of 31Ar is presented for the first time together with a quantitative analysis of the beta-delayed two-proton-gamma-decay. A new method for determination of the spin of low-lying levels in the beta-proton-daughter 30S using proton-proton angular correlations is presented and used for the level at 5.2 MeV, which is found to be either a 3+ or 4+ level, with the data pointing towards the 3+. The half-life of 31Ar is found to be 15.1(3) ms. An improved analysis of the Fermi beta-strength gives a total measured branching for the beta-3p-decay of 3.60(44) %, which is lower than the theoretical value found to be 4.24(43) %. Finally the strongest gamma-transitions in the decay of 33Ar are shown including a line at 4734(3) keV associated to the decay of the IAS, which has not previously been identified.

  13. He-, Ne-, and Ar-phosgene intermolecular potential energy surfaces

    DEFF Research Database (Denmark)

    Munteanu, Cristian R.; Henriksen, Christian; Felker, Peter M.;

    2013-01-01

    Using the CCSD(T) model, we evaluated the intermolecular potential energy surfaces of the He-, Ne-, and Ar-phosgene complexes. We considered a representative number of intermolecular geometries for which we calculated the corresponding interaction energies with the augmented (He complex) and double...

  14. Vector Magnetic Field Measurement of NOAA AR 10197

    Institute of Scientific and Technical Information of China (English)

    Hong-Fei Liang; Hai-Juan Zhao; Fu-Yuan Xiang

    2006-01-01

    A set of two-dimensional Stokes spectral data of NOAA AR 10197 obtained by the Solar Stokes Spectral Telescope (S3T) at the Yunnan Observatory are qualitatively analyzed.The three components of the vector magnetic field, the strength H, inclination γ and azimuth x, are derived. Based on the three components, we contour the distributions of the longitudinal magnetic field and transverse magnetic field. The active region (AR) has two different magnetic polarities apparent in the longitudinal magnetic map due to projection effect. There is a basic agreement on the longitudinal magnetic fields between the S3T and SOHO/MDI magnetograms, with a correlation coefficient ρBl = 0.911. The transverse magnetic field of the AR has a radial distribution from a center located in the southwest of the AR. It is also found that the transverse magnetic fields obtained by Huairou Solar Observing Station (HRSOS) have a similar radial distribution. The distributions of transverse magnetic field obtained by S3T and HRSOS have correlation coefficients, ρAzimu = 0.86 and ρBt = 0.883,in regard to the azimuthal angle and intensity.

  15. Interacting with Visual Poems through AR-Based Digital Artwork

    Science.gov (United States)

    Lin, Hao-Chiang Koong; Hsieh, Min-Chai; Liu, Eric Zhi-Feng; Chuang, Tsung-Yen

    2012-01-01

    In this study, an AR-based digital artwork called "Mind Log" was designed and evaluated. The augmented reality technique was employed to create digital artwork that would present interactive poems. A digital poem was generated via the interplay between a video film and a text-based poem. This artwork was created following a rigorous design flow,…

  16. Global properties of the white dwarf pulsar AR Scorpii

    CERN Document Server

    Franzon, B

    2016-01-01

    In view of the new recent observation and measurement of the fast-rotating and highly-magnetized white dwarf AR Sco \\cite{Marsh:2016uhc}, we determine bounds for its radius, magnetic fields, moment of inertia and gravitational wave (GW) emission by using observations of the luminosity, as well the rotation frequency $\

  17. Pulsed electric field (PEF)research at USDA, ARS, ERRC

    Science.gov (United States)

    This article summarizes the effects of pulsed electric fields on the microbiological safety and quality aspects of various liquid food matrices, obtained at USDA, ARS, Eastern Regional Research Center under CRIS Project No. 1935-41420-013-00D, Processing Intervention Technologies for Enhancing the S...

  18. Analizando las intenciones profundas del "Ars poetica" de Horacio

    Directory of Open Access Journals (Sweden)

    Óscar Velásquez

    1998-09-01

    Full Text Available El "Arte Poética" de Horacio ha sido interpretada muy diversamente, pero es conveniente tener en cuenta su estilo epistolar, que la distancia a la vez del tratado de tipo filosófico y de la libertad de la sátira. Se propone en este estudio que de todos modos el AP es una obra que se articula en base a una idea fundamental, a saber, la de "forma", de la que surgen los conceptos de 'materia temática' y 'acción', especialmente la épica y el drama. El amplio espacio, por otra parte, concedido al arte, como sería natural en una poética,se debería explicar por el hecho de que el "ars" es de un cierto modo la "forma" que da realidad al verdadero poeta. (Horace's "Ars Poetica" has been interpreted in many ways, but it is important to consider its epistolary style, which sets it apart from the philosophical essay and from the free-style satyre. This study proposes that "Ars Poetica" is articulated upon a fundamental notion, that of "form", from which the concepts of 'thematic matter' and 'action' emerge, especially epic and drama. The relevance given to art, on the other hand, is explained by the fact that "ars" is somehow the "form" that shapes the real poet.

  19. CANONICAL COMPUTATIONAL FORMS FOR AR 2-D SYSTEMS

    NARCIS (Netherlands)

    ROCHA, P; WILLEMS, JC

    1990-01-01

    A canonical form for AR 2-D systems representations is introduced. This yields a method for computing the system trajectories by means of a line-by-line recursion, and displays some relevant information about the system structure such as the choice of inputs and initial conditions.

  20. Renal coccidiosis in interior Canada geese, Branta canadensis interior Todd, of the Mississippi Valley population

    Science.gov (United States)

    Tuggle, Benjamin N.; Crites, John L.

    1984-01-01

    Kidneys from 309 Interior Canada geese from three locations in the Mississippi Flyway were examined for renal coccidia. Oocysts and/or young zygotes of Eimeria sp. were found in 6.8% of goose kidneys sampled. Only one type of renal coccidian oocyst was observed. Significantly more immature geese were infected than adults; however, there was no significant difference observed between the prevalences of infection in male and female birds. A host cellular response to zygotes and oocysts was noted in the majority of infected adult geese. Heavily infected kidneys were hypertrophic with minute foci on the surface of the organ. Histological examinations showed large numbers of unsporulated oocysts accumulated in distended collecting tubules, resulting in pressure necrosis to adjacent tissue and urate retention. Zygotes were observed in the cytoplasm of tubule cells and extracellularly in interstitial tissue. Infected tubule cells were characterized by the peripheral location of the nuclei, cytoplasmic basophilia, and cellular hypertrophy. This is the first report of an Eimeria sp. in the kidneys of Canada geese of the Mississippi Valley population.

  1. Behaviour of AR glass fibre for building structural applications

    Directory of Open Access Journals (Sweden)

    Miravete, A.

    2005-12-01

    Full Text Available The AR glass reinforcement fibres were designed to resist the alkalis from the concrete. This is the main reason for its utilisation as a short-fibre-reinforcement of mortar and concrete for the last decades. Originally, the AR glass fibre sizing was not compatible with synthetic resins, so that this type of reinforcement was applied exclusively to mortar and concrete matrices. Recently, due to the developments of sizing, which are compatible with synthetic resins, the AR- glass fibres may be used as reinforcement of organic matrix composite materials, broadening the range of structural applications. The mechanical properties of AR glass fibre and organic matrix composite materials will be studied in this paper. First, the behaviour of this material under stress corrosion will be analysed. Their mass loss will be compared to E, C, and boron free glass fibres. Second, an experimental study dealing with 3P test bending and short beam ofAR glass fibre/polyester will de described with the goal of obtaining their Young modulus and tensile and interlaminar shear strengths. Finally, these experimental results will be compared to E glass fibre/polyester and several conclusions about their structural applications will be drawn.

    El vidrio AR y su presentación en forma de fibras de refuerzo, fue diseñado para ser inerte a los álcalis de los cementos. Por este motivo se viene utilizando desde hace varias décadas como refuerzo de morteros y hormigones en forma de fibra corta. El ensimaje que estas fibras de vidrio de refuerzo A R presentaba en su origen no era compatible con resinas de tipo sintéticas, por lo que el refuerzo era exclusivo para cementos y hormigones fuera cual fuera la aplicación, formato o proceso productivo. Recientemente, gracias al desarrollo específico de ensimajes especiales acordes a las fibras de vidrio AR ha aparecido la misma tipología de vidrio AR como refuerzo en forma de fibra continua compatible con resinas sint

  2. Ar40/Ar39计时及西藏南部喜马拉雅期几个黑云母年龄的测定

    Institute of Scientific and Technical Information of China (English)

    戴橙谟; 洪阿实

    1982-01-01

    Five biotites of Himalayan Period from southern Xizang platean have been irradiated and determined using reactor No. 901 in Qinghua University as fast neutron source(neutron flux 1.17× 1013n/cm2·s, fast neutron - 25%, duration of irradiation 18 hours) and MMhb-1 hornblende from USA as standard. Most of the samples were also determined by Ar36 isotope dilation method, and good agreement has been obtained for the results between the two approaches. This shows that Ar40/Ar39 dating is capable to distinguish clearly the order of intrusion among the multiphase intrnsions with respect to the young granites of Himalayan Period. Powder sample of CaF2 and K2SO4 were irradiated and ratios of (Ar36/Ar37)Ca. and(Ar39/Ar37)Ca and (Ar40/Ar39)x have been measured, which are of the same magnitutc of order as reported from other reac-tors in the world. For the ZBH-2506 biotite standard of China, Ar40/Ar39 age (130.9--131.9my)agrees with the age of 131±2.6 my as determined by dilution method. Plateau age obtained by step-wise heating (131±0.8my) is similar with the data obtained from total fusion and dilution methods.

  3. NanoSIMS50 analyses of Ar/18O2 plasma-treated Escherichia coli bacteria

    Science.gov (United States)

    Clément, F.; Lecoq, E.; Duday, D.; Belmonte, T.; Audinot, J.-N.; Lentzen, E.; Penny, C.; Cauchie, H.-M.; Choquet, P.

    2011-11-01

    Reactive oxygen species (ROS) can be produced by electrical discharges and can be transported in uncharged regions by gas flows, in the so-called afterglows. These species are well known to have bactericidal effects but interaction mechanisms that occur with living micro-organisms remain misunderstood. In order to better understand these interactions, new analysis approaches are necessary. High-lateral-resolution secondary ion mass spectrometry (NanoSIMS) is one of the most promising ways of retrieving additional information on bacteria plasma inactivation mechanisms by combining isotopic imaging of plasma-treated bacteria and the use of 18O2 as process gas. Indeed, this technology combines a lateral resolution of a few tens of nanometres that is sufficient to image the interior of bacteria, and a high mass resolution allowing detection of isotopes present in low quantities (a few ppm or lower) within the bacteria. The present paper deals with Ar-18O2 (2%) plasma treatment, through low-pressure microwave late afterglows, of Escherichia coli bacteria and their elemental and isotopic imaging by NanoSIMS. E. coli bacteria have been exposed to this reactive medium for varying treatment duration while keeping all other parameters unchanged. Our main goal is to determine whether the quantity of 18O fixed in treated bacteria and the NanoSIMS50 lateral resolution are sufficient to give additional information on E. coli bacteria-plasma interaction.

  4. Cytocompatibility of Ar{sup +} plasma treated and Au nanoparticle-grafted PE

    Energy Technology Data Exchange (ETDEWEB)

    Svorcik, V. [Department of Solid State Engineering, Institute of Chemical Technology, 166 28 Prague (Czech Republic)], E-mail: vaclav.svorcik@vscht.cz; Kasalkova, N.; Slepicka, P. [Department of Solid State Engineering, Institute of Chemical Technology, 166 28 Prague (Czech Republic); Zaruba, K.; Kral, V. [Department of Analytical Chemistry, Institute of Chemical Technology, 166 28 Prague (Czech Republic); Bacakova, L.; Parizek, M.; Lisa, V. [Institute of Physiology, Academy of Sciences of the Czech Republic 142 20 Prague (Czech Republic); Ruml, T.; Gbelcova, H.; Rimpelova, S. [Department of Biochemistry and Microbiology, Institute of Chemical Technology, 166 28 Prague (Czech Republic); Mackova, A. [Nuclear Physics Institute, Academy of Sciences of the Czech Republic, 250 68 Rez (Czech Republic); Department of Physics, J.E. Purkinje University, 400 96 Usti nad Labem (Czech Republic)

    2009-06-01

    Polyethylene (PE) was irradiated with inert Ar plasma, and the chemically active PE surface was grafted with Au nanoparticles. The composition and the structure of the modified PE surface were studied using X-ray photoelectron spectroscopy (XPS) and Rutherford backscattering spectroscopy (RBS). Changes in the surface wettability were determined from the contact angle measured in a reflection goniometer. The changes in the surface roughness and morphology were followed by atomic force microscopy (AFM). The modified PE samples were seeded with rat vascular smooth muscle cells (VSMC) or mouse NIH 3T3 fibroblasts, and their adhesion and proliferation were studied. We found that plasma discharge and Au grafting lead to dramatic changes in the surface morphology and roughness of PE. The Au nanoparticles were found not only on the sample surface, but also in the sample interior up to the depth of about 100 nm. In addition, plasma modification of the PE surface, followed with grafting Au-nanoparticles, significantly increased the attractiveness of the PE surface for the adhesion and growth of VSMC, and particularly for mouse embryonic 3T3 fibroblasts.

  5. Cytocompatibility of Ar + plasma treated and Au nanoparticle-grafted PE

    Science.gov (United States)

    Švorčík, V.; Kasálková, N.; Slepička, P.; Záruba, K.; Král, V.; Bačáková, L.; Pařízek, M.; Lisá, V.; Ruml, T.; Gbelcová, H.; Rimpelová, S.; Macková, A.

    2009-06-01

    Polyethylene (PE) was irradiated with inert Ar plasma, and the chemically active PE surface was grafted with Au nanoparticles. The composition and the structure of the modified PE surface were studied using X-ray photoelectron spectroscopy (XPS) and Rutherford backscattering spectroscopy (RBS). Changes in the surface wettability were determined from the contact angle measured in a reflection goniometer. The changes in the surface roughness and morphology were followed by atomic force microscopy (AFM). The modified PE samples were seeded with rat vascular smooth muscle cells (VSMC) or mouse NIH 3T3 fibroblasts, and their adhesion and proliferation were studied. We found that plasma discharge and Au grafting lead to dramatic changes in the surface morphology and roughness of PE. The Au nanoparticles were found not only on the sample surface, but also in the sample interior up to the depth of about 100 nm. In addition, plasma modification of the PE surface, followed with grafting Au-nanoparticles, significantly increased the attractiveness of the PE surface for the adhesion and growth of VSMC, and particularly for mouse embryonic 3T3 fibroblasts.

  6. Near-IR Polarized Scattered Light Imagery of the DoAr 28 Transitional Disk

    CERN Document Server

    Rich, Evan A; Mayama, Satoshi; Brandt, Timothy D; Hashimoto, Jun; Kudo, Tomoyuki; Kusakabe, Nobuhiko; Espaillat, Catherine; Abe, Lyu; Akiyama, Eiji; Brandner, Wolfgang; Carson, Joseph C; Currie, Thayne; Egner, Sebastian; Feldt, Markus; Follette, Kate; Goto, Miwa; Grady, Carol A; Guyon, Olivier; Hayano, Yutaka; Hayashi, Masahiko; Hayashi, Saeko S; Henning, Thomas; Hodapp, Klaus W; Ishii, Miki; Iye, Masanori; Janson, Markus; Kandori, Ryo; Knapp, Gillian R; Kuzuhara, Masayuki; Kwon, Jungmi; Matsuo, Taro; McElwain, Michael W; Miyama, Shoken; Morino, Jun-Ichi; Moro-Martin, Amaya; Nishimura, Tetsuo; Pyo, Tae-Soo; Qi, Chunhua; Serabyn, Eugene; Suenaga, Takuya; Suto, Hiroshi; Suzuki, Ryuji; Takahashi, Yasuhiro H; Takami, Michihiro; Takato, Naruhisa; Terada, Hiroshi; Thalmann, Christian; Tomono, Daigo; Turner, Edwin L; Watanabe, Makoto; Yamada, Toru; Takami, Hideki; Usuda, Tomonori; Tamura, Motohide

    2015-01-01

    We present the first spatially resolved polarized scattered light H-band detection of the DoAr 28 transitional disk. Our two epochs of imagery detect the scattered light disk from our effective inner working angle of 0.10" (13 AU) out to 0.50" (65 AU). This inner working angle is interior to the location of the system's gap inferred by previous studies using SED modeling (15 AU). We detected a candidate point source companion 1.08" northwest of the system; however, our second epoch of imagery strongly suggests that this object is a background star. We constructed a grid of Monte Carlo Radiative Transfer models of the system, and our best fit models utilize a modestly inclined (50 deg), 0.01 Msun disk that has a partially depleted inner gap from the dust sublimation radius out to ~8 AU. Subtracting this best fit, axi-symmetric model from our polarized intensity data reveals evidence for two small asymmetries in the disk, which could be attributable to variety of mechanisms.

  7. Precision angle-resolved autoionization resonances in Ar and Ne

    Energy Technology Data Exchange (ETDEWEB)

    Berrah, N.; Langer, B.; Gorczyca, T.W. [Western Michigan Univ., Kalamazoo, MI (United States)] [and others

    1997-04-01

    Theoretical work has shown that the electron angular distribution and the shape of the autoionization resonances are crucial to the understanding of certain types of electron-electron correlation. Autoionization resonances in Ne (Ar) result from the decay of the excited discrete state Ne{sup *} 2s2p{sup 6} np (Ar{sup *} 3s3p{sup 6} np) into the continuum state Ne{sup +} 2s{sup 2}2p{sup 5} + e{sup {minus}} (ks,kd) (Ar{sup +} 3s{sup 2}3p{sup 5} + e{sup {minus}} (ks,kd)). Since the continuum can also be reached by direct photoionization, both paths add coherently, giving rise to interferences that produce the characteristic Beutler-Fano line shape. In this work, the authors report on quantitative angle-resolved electron spectrometry studies of (a) the Ne 2s{sup 2}2p{sup 6} {r_arrow} 2s2p{sup 6} np (n=3-5) autoionizing resonances and the 2s{sup 2}2p{sup 6} {r_arrow} 2p{sup 4}3s3p doubly excited resonance, (b) the Ar 3s{sup 2}3p{sup 6} {r_arrow} 3s3p{sup 6} np (n=4-9) autoionization resonances and extended R-matrix calculations of the angular-distribution parameters for both Ne and Ar measurements. Their results are compared with previous theoretical work by Taylor.

  8. Langmuir Probe Measurements of Inductively Coupled CHF3/Ar and Ar/CHF3/O2 Plasmas

    Science.gov (United States)

    Sharma, S. P.; Rao, M. V. V. S.; Meyyappan, M.

    2000-01-01

    Plasma parameters, such as, electron number density (ne), electron temperature (Te), y electron energy distribution function (EEDF), mean electron energy (Ee), ion number density (ni), and plasma potential (Vp), have been measured by using Langmuir probe in low-pressure (10-50 mTorr) inductively coupled CHF3/Ar and CHF3/Ar/O2 plasmas generated in the GEC cell. The measurements were made at the center of the plasma, keeping the lower electrode grounded, for various CHF3/Ar and Ar/CHF3/O2 mixtures operating at 10-50 mTorr pressures and two input RF power levels, 200 and 300 W. EEDF data show a strong Druyvesteyn distribution with relatively lower number of low energy electrons as compared to a Maxwell distribution and a large electron population with energies higher than the plasma potential. The results further show that at low CHF3 concentrations (less than 50%) the electron number density remains nearly constant with increase in pressure. At higher CHF3 concentrations, however, it decreases with increase in pressure. Plasma potential and electron temperature increase with decrease in pressure and with increase in CHF3 concentration. An analysis of the above observations and mechanisms will be presented.

  9. Geochemistry and 40Ar/39Ar age of Early Carboniferous dolerite sills in the southern Baltic Sea

    Directory of Open Access Journals (Sweden)

    Gediminas Motuza

    2015-08-01

    Full Text Available The Early Carboniferous magmatic event in the southern Baltic Sea is manifested by dolerite intrusions. The presumable area in which the dolerite intrusions occur ranges from 30 to 60 km in east–west direction, and is about 100 km in north–south direction. The dolerites were sampled in well D1-1 and investigated by applying chemical analysis and 40Ar/39Ar step-heating dating. Dolerites are classified as alkali and sodic, characterized by high TiO2 (3.92, 3.99 wt% and P2O5 (1.67, 1.77 wt% and low MgO (4.89, 4.91 wt% concentrations, enriched in light rare earth elements, originated from an enriched mantle magma source and emplaced in a continental rift tectonic setting. The 351 ± 11 Ma 40Ar/39Ar plateau age for groundmass plagioclase indicates a considerable age gap with the 310–250 Ma magmatism in southern Scandinavia and northern Germany. The magmatic rocks in the Baltic Sedimentary Basin are coeval with alkaline intrusions of NE Poland. Both magmatic provinces lie in the northwestward prolongation of the Pripyat–Dnieper–Donetsk Rift (370–359 Ma and may constitute a later phase of magmatic activity of this propagating rift system.

  10. 40Ar/ 39Ar ages for the alkaline volcanism and the basement of Gorringe Bank, North Atlantic ocean

    Science.gov (United States)

    Féraud, Gilbert; Gastaud, Janine; Auzende, Jean-Marie; Olivet, Jean-Louis; Cornen, Guy

    1982-01-01

    Gorringe Bank is situated on the Europe-Africa plate boundary at the eastern end of the Azores-Gibraltar fracture zone. It has two summits, Gettysburg Bank to the Southwest and Ormonde Bank to the northeast. We applied the 40Ar/ 39Ar stepwise heating method to date six samples of the alkaline volcanic rocks, two gabbros from the Ormonde Bank and a dolerite from the Gettysburg Bank. The results that the alkaline volcanism lasted probably for less than 6 Ma(66-60 Ma). Although the nature of this volcanism precludes any subduction feature during its setting, the alkaline volcanism of Ormonde is probably linked to Upper Cretaceous/Eocene compressive tectonic events. The basement rocks of Gorringe Bank reveal distrubed 40Ar/ 39Ar age spectra. One plagioclase and one biotite from a gabbro give evidence for a thermic event whose age is tentatively estimated at about 75 Ma, and related to a variation in the direction of the relative movement between Europe and Africa. The more probable age given by a plagioclase of another gabbro and by a dolerite (110 Ma) corresponds to tilting northeastward of the Gorringe massif.

  11. 40Ar/39Ar geochronological constraints on syn-orogenic strike-slip movement of Tan-Lu fault zone

    Institute of Scientific and Technical Information of China (English)

    ZHU Guang; LIU Guosheng; W. J. Dunlap; C. Teyssier; WANG Yongsheng; NIU Manlan

    2004-01-01

    Two phases of sinistral strike-slip ductile shear belts occur on the eastern margin of the Dabie orogenic belt.A muscovite 40Ar/39Ar plateau age of 128 Ma was obtained from mylonite in the later ductile shear zone. Three muscovite samples separated from mylonites of 3 localities in the earlier ductile shear belts yield 40Ar/39Ar plateau ages of 192.5±0.7 Ma, 189.7±0.6 Ma and 188.7±0.7 Ma, respectively. They are interpreted as cooling ages of the earlier sinistrai strike-slip deformation. It is suggested that left-lateral displacement of the Tan-Lu fault zone started in a late stage of the collision orogeny in the Dabie-Sulu orogenic belt between the North and South China plates. Therefore, the earlier Tan-Lu fault zone was syn-orogenic strike-slip tectonics.The fault zone was used again for sinistral displacement during tectonic activities of peri-Pacific regime in Early Cretaceous. It is proposed that the fault zone occurred as a transform fault during the orogenic process.

  12. Ar-Ar geochronology of Late Mesozoic volcanic rocks from the Yanji area,NE China and tectonic implications

    Institute of Scientific and Technical Information of China (English)

    LI ChaoWen; GUO Feng; FAN WeiMing; GAO XiaoFeng

    2007-01-01

    Ar-Ar dating results of late Mesozoic-Cenozoic volcanic rocks from the Yanji area, NE China provide a new volcano-sedimentary stratigraphic framework. The previously defined "Triassic-Jurassic" volcanic rocks(including those from Sanxianling, Tuntianying, Tianqiaoling and Jingouling Fms.)were erupted during 118-106Ma,corresponding to Early Cretaceous. The new eruption age span is slightly younger than the main stage(130-120 Ma)of the extensive magmatism in the eastern Central Asian Orogenic Belt and its adjacent regions. Subduction-related adakites occurring in the previously defined Quanshuicun Fm. Were extruded at ca.55 Ma. Based on these new Ar-Ar ages, the late Mesozoic to Palaeocene volcano-sedimentary sequences is rebuilt as:Tuopangou Fm., Sanxianling/Tuntianying Fm.(118-115 Ma),Malugou/Tianqiaoling Fm.(K1),Huoshanyan/Jingouling Fm.(108-106 Ma),Changcai Fm.(K2),Quanshuicun Fm.(~55 Ma)and Dalazi Fm. Our results suggest that subduction of the Palaeo-Pacific Ocean beneath the East Asian continental margin occurred during 106to 55 Ma. Consistent with the paleomagnetic observations and magmatic records which indicated that the Izanagi-Farallon ridge subduction beneath the southwestern Japan took place during 95-65 Ma.

  13. Ar-Ar geochronology of Late Mesozoic volcanic rocks from the Yanji area, NE China and tectonic implications

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Ar-Ar dating results of late Mesozoic-Cenozoic volcanic rocks from the Yanji area, NE China provide a new volcano-sedimentary stratigraphic framework. The previously defined “Triassic-Jurassic” volcanic rocks (including those from Sanxianling, Tuntianying, Tianqiaoling and Jingouling Fms.) were erupted during 118―106 Ma, corresponding to Early Cretaceous. The new eruption age span is slightly younger than the main stage (130―120 Ma) of the extensive magmatism in the eastern Central Asian Orogenic Belt and its adjacent regions. Subduction-related adakites occurring in the previously defined Quanshuicun Fm. were extruded at ca. 55 Ma. Based on these new Ar-Ar ages, the late Mesozoic to Palaeocene volcano-sedimentary sequences is rebuilt as: Tuopangou Fm., Sanxianling/Tuntianying Fm. (118―115 Ma), Malugou/Tianqiaoling Fm. (K1), Huoshanyan/Jingouling Fm. (108―106 Ma), Changcai Fm. (K2), Quanshuicun Fm. (~55 Ma) and Dalazi Fm. Our results suggest that subduction of the Pa- laeo-Pacific Ocean beneath the East Asian continental margin occurred during 106 to 55 Ma, consistent with the paleomagnetic observations and magmatic records which indicated that the Izanagi-Farallon ridge subduction beneath the southwestern Japan took place during 95―65 Ma.

  14. ISEA reversed event in the Cretaceous Normal Superchron (CNS):40Ar/39Ar dating and paleomagnetic results

    Institute of Scientific and Technical Information of China (English)

    SHI Ruiping; HE Huaiyu; ZHU Rixiang; PAN Yongxin

    2004-01-01

    In order to provide the age for the ISEA (one reversed event in the CNS) a combined rock magnetic, paleomagnetic and geochronologic study has been conducted on two Cretaceous andesitic basalt lava flows from Sanbaoying, Liaoning Province of northeastern China. Rock magnetic investigations show that pseudo-single domain (PSD) titanomagnetite with poor-Ti content is the dominant magnetic mineral in Sanbaoying lava flows. Detailed systematic thermal demagnetization allowed us to isolate two remanence components after removing a low temperature component at 100℃/150℃; an intermediate temperature component with normal polarity at 150℃/200℃-380℃/400℃ and the characteristic remanence component (ChRM) with reversed polarity above 400℃/450℃. 40Ar/39Ar dating results show that Sanbaoying rocks were erupted at 116.0±0.3 Ma. Combination of paleomagnetic results and 40Ar/39Ar dating indicates that the reversed event recorded in Sanbaoying lavas corresponds to the ISEA event in the CNS. Our age determination for ISEA reversed event provides chronological evidence to study the relevance between global geological events that occurred in the CNS and geodynamo processes.

  15. Improvement of Interior Ballistic Performance Utilizing Particle Swarm Optimization

    Directory of Open Access Journals (Sweden)

    Hazem El Sadek

    2014-01-01

    Full Text Available This paper investigates the interior ballistic propelling charge design using the optimization methods to select the optimum charge design and to improve the interior ballistic performance. The propelling charge consists of a mixture propellant of seven-perforated granular propellant and one-hole tubular propellant. The genetic algorithms and some other evolutionary algorithms have complex evolution operators such as crossover, mutation, encoding, and decoding. These evolution operators have a bad performance represented in convergence speed and accuracy of the solution. Hence, the particle swarm optimization technique is developed. It is carried out in conjunction with interior ballistic lumped-parameter model with the mixture propellant. This technique is applied to both single-objective and multiobjective problems. In the single-objective problem, the optimization results are compared with genetic algorithm and the experimental results. The particle swarm optimization introduces a better performance of solution quality and convergence speed. In the multiobjective problem, the feasible region provides a set of available choices to the charge’s designer. Hence, a linear analysis method is adopted to give an appropriate set of the weight coefficients for the objective functions. The results of particle swarm optimization improved the interior ballistic performance and provided a modern direction for interior ballistic propelling charge design of guided projectile.

  16. Emotion and interior space design: an ergonomic perspective.

    Science.gov (United States)

    Reddy, Swathi Matta; Chakrabarti, Debkumar; Karmakar, Sougata

    2012-01-01

    Interaction between the users and their environment is spontaneous and unavoidable. This interaction can be positive or negative. A good interior space is about considering all the physical, environmental and cognitive elements and harmonizing them to make it a space that feels right, functionally and emotionally. The important element that has to be considered the most in an interior space is the "user". Balancing all these elements is a challenging job and results in a perfect interior space design. This paper intends to bring to light the necessity of designing an optimum interior space, which is a balance of the user's choice and the mandatory standards that ought to be followed for user safety and convenience. There has to be an intervening domain of ergonomics which will guide to bring out a balance between the personal choice of the user and the usual standards followed. It should also provide a step-by-step information, guidance and direction to act to the specifications and standards systematically to adapt an integrated approach of handling all the elements holistically which will indeed result in a good interior space.

  17. Huntingtin-associated protein 1 (HAP1) interacts with androgen receptor (AR) and suppresses SBMA-mutant-AR-induced apoptosis.

    Science.gov (United States)

    Takeshita, Yukio; Fujinaga, Ryutaro; Zhao, Changjiu; Yanai, Akie; Shinoda, Koh

    2006-08-01

    Huntingtin-associated protein 1 (HAP1), an interactor of huntingtin, has been known as an essential component of the stigmoid body (STB) and recently reported to play a protective role against neurodegeneration in Huntington's disease (HD). In the present study, subcellular association between HAP1 and androgen receptor (AR) with a long polyglutamine tract (polyQ) derived from spinal-and-bulbar-muscular-atrophy (SBMA) was examined using HEp-2 cells cotransfected with HAP1 and/or normal ARQ25, SBMA-mutant ARQ65 or deletion-mutant AR cDNAs. The results provided the first clear evidence that HAP1 interacts with AR through its ligand-binding domain in a polyQ-length-dependent manner and forms prominent inclusions sequestering polyQ-AR, and that addition of dihydrotestosterone reduces the association strength of HAP1 with ARQ25 more dramatically than that with ARQ65. Furthermore, SBMA-mutant-ARQ65-induced apoptosis was suppressed by cotransfection with HAP1. Our findings strongly suggest that HAP1/STB is relevant to polyQ-length-dependent modification on subcellular AR functions and critically involved in pathogenesis of not only HD but also SBMA as an important intrinsic neuroprotectant determining the threshold for cellular vulnerability to apoptosis. Taking together with previous reports that HAP1/STB is selectively expressed in the brain regions spared from degenerative targets in HD and SBMA, the current study might explain the region-specific occurrence of neurodegeneration in both diseases, shedding light on common aspects of their molecular pathological mechanism and yet-to-be-uncovered diagnostic or therapeutic applications for HD and SBMA patients.

  18. 40Ar/39Ar geochronology, paleomagnetism, and evolution of the Boring volcanic field, Oregon and Washington, USA

    Science.gov (United States)

    Fleck, Robert J.; Hagstrum, Jonathan T.; Calvert, Andrew T.; Evarts, Russell C.; Conrey, Richard M.

    2014-01-01

    The 40Ar/39Ar investigations of a large suite of fine-grained basaltic rocks of the Boring volcanic field (BVF), Oregon and Washington (USA), yielded two primary results. (1) Using age control from paleomagnetic polarity, stratigraphy, and available plateau ages, 40Ar/39Ar recoil model ages are defined that provide reliable age results in the absence of an age plateau, even in cases of significant Ar redistribution. (2) Grouping of eruptive ages either by period of activity or by composition defines a broadly northward progression of BVF volcanism during latest Pliocene and Pleistocene time that reflects rates consistent with regional plate movements. Based on the frequency distribution of measured ages, periods of greatest volcanic activity within the BVF occurred 2.7–2.2 Ma, 1.7–0.5 Ma, and 350–50 ka. Grouped by eruptive episode, geographic distributions of samples define a series of northeast-southwest–trending strips whose centers migrate from south-southeast to north-northwest at an average rate of 9.3 ± 1.6 mm/yr. Volcanic activity in the western part of the BVF migrated more rapidly than that to the east, causing trends of eruptive episodes to progress in an irregular, clockwise sense. The K2O and CaO values of dated samples exhibit well-defined temporal trends, decreasing and increasing, respectively, with age of eruption. Divided into two groups by K2O, the centers of these two distributions define a northward migration rate similar to that determined from eruptive age groups. This age and compositional migration rate of Boring volcanism is similar to the clockwise rotation rate of the Oregon Coast Range with respect to North America, and might reflect localized extension on the trailing edge of that rotating crustal block.

  19. Comparação entre a dor provocada pela facoemulsificação com anestesia tópica e a pela infiltração peribulbar sem sedação Comparison between the pain induced by phacoemulsification with topical anesthesia and by peribulbar anesthesia without sedation

    Directory of Open Access Journals (Sweden)

    Roberto Pinto Coelho

    2005-02-01

    Full Text Available OBJETIVO: Comparar a sensação de dor produzida pela realização de facoemulsificação com anestesia tópica com a induzida pela infiltração peribulbar de solução anestésica. MÉTODOS: Usando-se uma escala visual análoga de dor de 10 níveis, mediu-se em 20 pacientes, a dor provocada pela realização de facoemulsificação com anestesia tópica (tetracaína 2%. A mesma escala foi usada para medir em 21 outros pacientes, a dor provocada pela infiltração peribulbar de solução anestésica (lidocaína a 2% e bupivacaína 0,5%. As infiltrações peribulbares e cirurgias foram feitas pelo mesmo cirurgião. As facoemulsificações foram realizadas com acesso "clear cornea" e implante de lente intra-ocular dentro do saco capsular. Não foi administrada qualquer medicação venosa ou via oral. Os valores de dor nos dois grupos estudados foram comparados pelo teste, não paramétrico, de Mann-Whitney U. RESULTADOS: A distribuição dos valores de dor da facectomia com anestesia tópica variou de 0 a 5, com mediana igual a 2. Com a infiltração peribulbar a distribuição obtida foi mais ampla, de 0 a 7, com mediana igual a 3. O teste de Mann-Whitney U, revelou que o "rank" médio do grupo da cirurgia com anestesia tópica (15,78 foi significantemente diferente do obtido com a infiltração peribulbar (25,98 (p=0,0056. CONCLUSÃO: Quando não se emprega sedação, a sensação de dor induzida pela realização da cirurgia da facoemulsificação com anestesia tópica é menor do que a causada pela anestesia peribulbar.PURPOSE: To compare pain sensation induced by phacoemulsification with topical anesthesia with that by peribulbar anesthesia, without sedation. METHODS: Using a 10-level visual pain analogue scale, the pain induced by phacoemulsification with topical anesthesia (2% tetracaine drops was measured in 20 patients. The same scale was used to measure the pain induced by peribulbar anesthesia (2% lidocaine and 0.5% bupivacaine in 21

  20. SYSTEMS OF INTERIOR STYLING AND TRAINING OF SPECIALISTS

    Directory of Open Access Journals (Sweden)

    samatdinov Marat Orynbaevich

    2016-09-01

    Full Text Available Increasing the quality of construction works and heat insulation efficiency of building envelope as well as providing additional fire proof and acoustic comfort suppose the use of special construction systems provided with the whole complex of components — composite construction systems. Composite interior systems include structural solutions of dividing walls, floors, suspended ceilings, inner facing of walls and fireproof facing, as well as assembling technology of these constructions. The main components of interior composite systems are gypsum board and gypsum-fiber sheets, gypsum-containing dry mortars. Less often gypsum partition blocks or panels based on Portland cement are used (cement fibrolite plates, aquapanels, etc.. The companies producing these materials are usually the movers of the creation of complex systems of interior facing. The systems are developed by leading Russian design organizations or engineering services of companies-the movers.

  1. Atmosphere-interior exchange on hot rocky exoplanets

    CERN Document Server

    Kite, Edwin S; Schaefer, Laura; Gaidos, Eric

    2016-01-01

    We provide estimates of atmospheric pressure and surface composition on short-period rocky exoplanets with dayside magma pools and silicate vapor atmospheres. Atmospheric pressure tends toward vapor-pressure equilibrium with surface magma, and magma-surface composition is set by the competing effects of fractional vaporization and surface-interior exchange. We use basic models to show how surface-interior exchange is controlled by the planet's temperature, mass, and initial composition. We assume that mantle rock undergoes bulk melting to form the magma pool, and that winds flow radially away from the substellar point. With these assumptions, we find that: (1) atmosphere-interior exchange is fast when the planet's bulk-silicate FeO concentration is low, and slow when FeO concentration is high; (2) magma pools are compositionally well-mixed for substellar temperatures $\\lesssim$ 2400 K, but compositionally variegated and rapidly variable for substellar temperatures $\\gtrsim$ 2400 K; (3) currents within the mag...

  2. Model Based Control of Moisture Sorption in a Historical Interior

    Directory of Open Access Journals (Sweden)

    P. Zítek

    2005-01-01

    Full Text Available This paper deals with a novel scheme for microclimate control in historical exhibition rooms, inhibiting moisture sorption phenomena that are inadmissible from the preventive conservation point of view. The impact of air humidity is the most significant harmful exposure for a great deal of the cultural heritage deposited in remote historical buildings. Leaving the interior temperature to run almost its spontaneous yearly cycle, the proposed non-linear model-based control protects exhibits from harmful variations in moisture content by compensating the temperature drifts with an adequate adjustment of the air humidity. Already implemented in a medieval interior since 1999, the proposed microclimate control has proved capable of permanently maintaining constant a desirable moisture content in organic or porous materials in the interior of a building. 

  3. An improved source model for aircraft interior noise studies

    Science.gov (United States)

    Mahan, J. R.; Fuller, C. R.

    1985-01-01

    There is concern that advanced turboprop engines currently being developed may produce excessive aircraft cabin noise level. This concern has stimulated renewed interest in developing aircraft interior noise reduction methods that do not significnatly increase take off weight. An existing analytical model for noise transmission into aircraft cabins was utilized to investigate the behavior of an improved propeller source model for use in aircraft interior noise studies. The new source model, a virtually rotating dipole, is shown to adequately match measured fuselage sound pressure distributions, including the correct phase relationships, for published data. The virtually rotating dipole is used to study the sensitivity of synchrophasing effectiveness to the fuselage sound pressure trace velocity distribution. Results of calculations are presented which reveal the importance of correctly modeling the surface pressure phase relations in synchrophasing and other aircraft interior noise studies.

  4. On ethics and the earthquake resistant interior design of buildings.

    Science.gov (United States)

    Hurol, Yonca

    2014-03-01

    The most common tectonic quality of modern structures, such as frame systems, is their flexibility; they are open for change. Although this characteristic is a big advantage in comparison to the inflexible masonry structures of the past, it might also create some serious problems, such as e.g. the lack of safety in the event of an earthquake, if the flexibility is not used consciously by architects and interior designers. This article attempts to define and establish some rules for the interior design of buildings with reinforced concrete frame systems. The rules for making subtractions from these structures and extending them by making additions to them are contained within this article. The main objective of this article is to derive some ethical values from these rules. Thus, the conclusion of the article focuses on the derivation of some ethical values for achieving earthquake resistant interior design of buildings with reinforced concrete frame systems.

  5. Time Evolution of Entanglement Entropy from Black Hole Interiors

    CERN Document Server

    Hartman, Thomas

    2013-01-01

    We compute the time-dependent entanglement entropy of a CFT which starts in relatively simple initial states. The initial states are the thermofield double for thermal states, dual to eternal black holes, and a particular pure state, dual to a black hole formed by gravitational collapse. The entanglement entropy grows linearly in time. This linear growth is directly related to the growth of the black hole interior measured along "nice" spatial slices. These nice slices probe the spacelike direction in the interior, at a fixed special value of the interior time. In the case of a two-dimensional CFT, we match the bulk and boundary computations of the entanglement entropy. We briefly discuss the long time behavior of various correlators, computed via classical geodesics or surfaces, and point out that their exponential decay comes about for similar reasons. We also present the time evolution of the wavefunction in the tensor network description.

  6. Time evolution of entanglement entropy from black hole interiors

    Science.gov (United States)

    Hartman, Thomas; Maldacena, Juan

    2013-05-01

    We compute the time-dependent entanglement entropy of a CFT which starts in relatively simple initial states. The initial states are the thermofield double for thermal states, dual to eternal black holes, and a particular pure state, dual to a black hole formed by gravitational collapse. The entanglement entropy grows linearly in time. This linear growth is directly related to the growth of the black hole interior measured along "nice" spatial slices. These nice slices probe the spacelike direction in the interior, at a fixed special value of the interior time. In the case of a two-dimensional CFT, we match the bulk and boundary computations of the entanglement entropy. We briefly discuss the long time behavior of various correlators, computed via classical geodesics or surfaces, and point out that their exponential decay comes about for similar reasons. We also present the time evolution of the wavefunction in the tensor network description.

  7. Development of a Low-Level Ar-37 Calibration Standard

    Energy Technology Data Exchange (ETDEWEB)

    Williams, Richard M.; Aalseth, Craig E.; Bowyer, Ted W.; Day, Anthony R.; Fuller, Erin S.; Haas, Derek A.; Hayes, James C.; Hoppe, Eric W.; Humble, Paul H.; Keillor, Martin E.; LaFerriere, Brian D.; Mace, Emily K.; McIntyre, Justin I.; Miley, Harry S.; Myers, Allan W.; Orrell, John L.; Overman, Cory T.; Panisko, Mark E.; Seifert, Allen

    2016-03-07

    Argon-37 is an important environmental signature of an underground nuclear explosion. Producing and quantifying low-level 37Ar standards is an important step in the development of sensitive field measurement instruments for use during an On-Site Inspection, a key provision of the Comprehensive Nuclear-Test-Ban Treaty. This paper describes progress at Pacific Northwest National Laboratory (PNNL) in the development of a process to generate and quantify low-level 37Ar standard material, which can then be used to calibrate sensitive field systems at activities consistent with soil background levels. The 37Ar used for our work was generated using a laboratory-scale, high-energy neutron source to irradiate powdered samples of calcium carbonate. Small aliquots of 37Ar were then extracted from the head space of the irradiated samples. The specific activity of the head space samples, mixed with P10 (90% stable argon:10% methane by mole fraction) count gas, is then derived using the accepted Length-Compensated Internal-Source Proportional Counting method. Due to the low activity of the samples, a set of three Ultra-Low Background Proportional-Counters designed and fabricated at PNNL from radio-pure electroformed copper was used to make the measurements in PNNL’s shallow underground counting laboratory. Very low background levels (<10 counts/day) have been observed in the spectral region near the 37Ar emission feature at 2.8 keV. Two separate samples from the same irradiation were measured. The first sample was counted for 12 days beginning 28 days after irradiation, the second sample was counted for 24 days beginning 70 days after irradiation (the half-life of 37Ar is 35.0 days). Both sets of measurements were analyzed and yielded very similar results for the starting activity (~0.1 Bq) and activity concentration (0.15 mBq/ccSTP argon) after P10 count gas was added. A detailed uncertainty model was developed based on the ISO Guide to the Expression of Uncertainty in

  8. A feature refinement approach for statistical interior CT reconstruction

    Science.gov (United States)

    Hu, Zhanli; Zhang, Yunwan; Liu, Jianbo; Ma, Jianhua; Zheng, Hairong; Liang, Dong

    2016-07-01

    Interior tomography is clinically desired to reduce the radiation dose rendered to patients. In this work, a new statistical interior tomography approach for computed tomography is proposed. The developed design focuses on taking into account the statistical nature of local projection data and recovering fine structures which are lost in the conventional total-variation (TV)—minimization reconstruction. The proposed method falls within the compressed sensing framework of TV minimization, which only assumes that the interior ROI is piecewise constant or polynomial and does not need any additional prior knowledge. To integrate the statistical distribution property of projection data, the objective function is built under the criteria of penalized weighed least-square (PWLS-TV). In the implementation of the proposed method, the interior projection extrapolation based FBP reconstruction is first used as the initial guess to mitigate truncation artifacts and also provide an extended field-of-view. Moreover, an interior feature refinement step, as an important processing operation is performed after each iteration of PWLS-TV to recover the desired structure information which is lost during the TV minimization. Here, a feature descriptor is specifically designed and employed to distinguish structure from noise and noise-like artifacts. A modified steepest descent algorithm is adopted to minimize the associated objective function. The proposed method is applied to both digital phantom and in vivo Micro-CT datasets, and compared to FBP, ART-TV and PWLS-TV. The reconstruction results demonstrate that the proposed method performs better than other conventional methods in suppressing noise, reducing truncated and streak artifacts, and preserving features. The proposed approach demonstrates its potential usefulness for feature preservation of interior tomography under truncated projection measurements.

  9. Petrografía y edad 40Ar/39Ar de leucogranitos peraluminosos al oeste de Valcheta: Macizo Nordpatagónico (Río Negro Petrography and 40Ar/39Ar age of peraluminous leucogranites west of Valcheta, Northpatagonian Massif (Río Negro

    Directory of Open Access Journals (Sweden)

    Martín R. Gozalvez

    2009-04-01

    Full Text Available Entre la localidad rionegrina de Valcheta y la Estación Muster del ex ferrocarril Gral. Roca se localizan numerosos afloramientos de leucogranitos que en conjunto forman un cuerpo plutónico de bordes rectos y geometría elipsoidal, aquí denominado plutón Valcheta. El intrusivo mencionado forma parte del basamento ígneo-metamórfico del sector oriental del macizo nordpatagónico. El plutón Valcheta es un cuerpo leucogranítico, peraluminoso (A/CNK >1,1, de grano medio, levemente deformado en los bordes, compuesto por una facies leucogranítica con muscovita-biotita-granate y otra con muscovita-biotita. Las zonas de contacto con los esquistos de la Formación Nahuel Niyeu están cubiertas y en su interior presenta xenolitos de gneises y anfibolitas inyectados por material leucocrático. El estudio radimétrico 40Ar/39Ar en muscovita del plutón Valcheta resultó en una edad de 470 ± 1,8 Ma. Estos datos permiten descartar la correlación de rocas leucogranitcas aflorantes al noroeste de Valcheta con el Granito Flores de edad jurásica. El plutón Valcheta presenta diferencias macroscópicas, petrográficas, microestructurales y composicionales con los intrusivos ordovícicos del Complejo Plutónico Punta Sierra, aflorante sobre la costa atlántica rionegrina. En consecuencia, la extensión del magmatismo ordovícico del este del Macizo Nordpatagónico hasta las inmediaciones de Valcheta debe ser revisada. La morfología, mineralogía, rasgos microestructurales y geoquímica del plutón Valcheta se comparan favorablemente con los leucogranitos del Complejo Mina Gonzalito que forman los plutones Tapera y María Teresa. El pico metamórfico de dicho complejo, según dataciones U-Pb en circones, es del Ordovícico medio (472 ± 5 Ma. El plutón Valcheta es composicionalmente semejante a leucogranitos post-colisionales tipo S formados en una corteza engrosada.NE trending leucogranites of the Valcheta pluton crop out west of Valcheta, between the

  10. Sistema de guía por voz en interiores

    OpenAIRE

    Martín-Calderín de la Villa, Mariana

    2013-01-01

    En los últimos años se ha producido un incremento del interés académico e industrial en los sistemas de localización para personas y objetos. Este crecimiento queda reflejado en la creación de aplicaciones comerciales, donde se ha recogido un aumento de la demanda en los sistemas de posicionamiento en interiores para las personas. En particular, dichos sistemas de localización en interiores, están teniendo una repercusión muy importante en fábricas, hospitales, grandes almacenes, entornos muy...

  11. A Comparison of the Interiors of Jupiter and Saturn

    CERN Document Server

    Guillot, T

    1999-01-01

    Interior models of Jupiter and Saturn are calculated and compared in the framework of the three-layer assumption, which rely on the perception that both planets consist of three globally homogeneous regions: a dense core, a metallic hydrogen envelope, and a molecular hydrogen envelope. Within this framework, constraints on the core mass and abundance of heavy elements (i.e. elements other than hydrogen and helium) are given by accounting for uncertainties on the measured gravitational moments, surface temperature, surface helium abundance, and on the inferred protosolar helium abundance, equations of state, temperature profile and solid/differential interior rotation.

  12. Conference on Boundary and Interior Layers : Computational and Asymptotic Methods

    CERN Document Server

    2015-01-01

    This volume offers contributions reflecting a selection of the lectures presented at the international conference BAIL 2014, which was held from 15th to 19th September 2014 at the Charles University in Prague, Czech Republic. These are devoted to the theoretical and/or numerical analysis of problems involving boundary and interior layers and methods for solving these problems numerically. The authors are both mathematicians (pure and applied) and engineers, and bring together a large number of interesting ideas. The wide variety of topics treated in the contributions provides an excellent overview of current research into the theory and numerical solution of problems involving boundary and interior layers.  .

  13. Seismic Study of Magnetic Field in the Solar Interior

    Indian Academy of Sciences (India)

    H. M. Antia

    2008-03-01

    Magnetic field in the solar interior contributes to the even order splitting coefficients, but it is not possible to separate the effect of magnetic field from those due to other deviations from spherical symmetry. Results obtained using GONG and MDI data are discussed. Limits on possible magnetic field in the solar core and in the tachocline region are obtained. There is some signal from possible magnetic field in the convection zone, but evidence of possible temporal variation in the solar interior is only marginal.

  14. Extreme Water: Characterizing Exoplanets with Excess Bulk Water Interiors

    Science.gov (United States)

    Sasselov, Dimitar

    2015-12-01

    A number of planets with radii of 1 - 2.5 Earth radius have measured mean densities that allow more than 20% of their bulk interior to be composed of water. How do planets with solid-state water mantles modulate the fluxes of gases reaching the surface? What should we expect about the composition of their evolved atmospheres? I review theoretical models of the interiors and near-surface layers that constrain the fluxes of major gases (in and out) and resulting atmospheric compositions. The results have implications for observational characterization of rocky versus water planets, when the density alone is not enough, as well as the search for biosignatures and habitability.

  15. The Sun's interior structure and dynamics, and the solar cycle

    CERN Document Server

    Broomhall, A -M; Howe, R; Norton, A A; Thompson, M J

    2014-01-01

    The Sun's internal structure and dynamics can be studied with helioseismology, which uses the Sun's natural acoustic oscillations to build up a profile of the solar interior. We discuss how solar acoustic oscillations are affected by the Sun's magnetic field. Careful observations of these effects can be inverted to determine the variations in the structure and dynamics of the Sun's interior as the solar cycle progresses. Observed variations in the structure and dynamics can then be used to inform models of the solar dynamo, which are crucial to our understanding of how the Sun's magnetic field is generated and maintained.

  16. Simulation of Carbon Nanotube Welding through Ar bombardment

    CERN Document Server

    Kucukkal, Mustafa U

    2014-01-01

    Single-walled carbon nanotubes show promise as nanoscale transistors, for nanocomputing applications. This use will require appropriate methods for creating electrical connections between distinct nanotubes, analogous to welding of metallic wires at larger length scales, but methods for performing nanoscale chemical welding are not yet sufficiently understood. This study examined the effect of Ar bombardment on the junction of two crossed single-walled carbon nanotubes, to understand the value and limitations of this method for generating connections between nanotubes. A geometric criterion was used to assess the quality of the junctions formed, with the goal of identifying the most productive conditions for experimental ion bombardment. In particular, the effects of nanotube chirality, Ar impact kinetic energy, impact particle flux and fluence, and annealing temperature were considered. The most productive bombardment conditions, leading to the most crosslinking of the tubes with the smallest loss of graphit...

  17. Ryoji Ikeda, Data Artist - Prix Ars Electronica Collide@CERN

    CERN Document Server

    CERN. Geneva; Koek, Ariane; Heuer, Rolf; Ikeda, Ryoji; Mr. Horst, Hoertner

    2014-01-01

    at the CERN Globe of Science and Innovation, CERN. You are very warmly invited to the opening presentation of Data Artist, Ryoji Ikeda’s residency at CERN. Ryoji Ikeda, one of the world’s leading electronic composers and visual artists, is the new Prix Ars Electronica Collide@CERN award winner. Ryoji Ikeda and his science inspiration partner, Theoretical Physicist, Dr. Tom Melia will talk about their work in arts and science. They are at the beginning of their creative journey together at CERN. A little about Ryoji Ikeda – the new Prix Ars Electronica Collide@CERN artist in residence. Ryoji Ikeda focuses on the essential characteristics of sound itself and that of visuals as light by means of both mathematical precision and mathematical aesthetics. Ikeda has gained a reputation as one of the few international artists working convincingly across both visual ...

  18. Medidas da umidade relativa do ar em um ambiente fechado

    Directory of Open Access Journals (Sweden)

    Costa Eden V.

    2003-01-01

    Full Text Available Umidade do ar e o vapor d'água presente na atmosfera. Neste trabalho medimos a umidade relativa do ar em um ambiente fechado onde a temperatura foi mantida constante. Nestas condições, a umidade cresce até o vapor d'água tornar-se saturado. Neste instante, a umidade é máxima. O aparato experimental utilizado consiste de recipiente fechado de vidro, higrômetro, termômetro e relógio. Trata-se, portanto, de um experimento simples, possível de ser realizado em um laboratório didático e capaz de preencher a lacuna dos livros de texto de física, que, em geral, negligenciam este tópico.

  19. Discurso y ejemplaridad en Ovidio, Ars 1.101-134

    OpenAIRE

    Schniebs, Alicia

    2012-01-01

    RÉSUMÉ Sur la base d’une analyse concernant l’intertextualité, l’intratextualité ainsi que lês rapports avec d’autres discours symboliques du contexte de production, le travail se propose d’étudier l’excursus de l’enlèvement des Sabines chez Ovide Ars 1.101- 134. Cette étude a pour but de déterminer la construction du lien exemplaire Romulus-Auguste impliqué dans le texte et sa relation avec cette même exemplaritélà dans le régime du principat. Mots-clés: exemplarité, Ovide, Ars amatoria, Rom...

  20. Progreso y retos de la geocronología 40Ar/39Ar en Costa Rica y Nicaragua Progress and Challenges Using 40Ar/39Ar Geochronology in Costa Rica and Nicaragua

    Directory of Open Access Journals (Sweden)

    Ian Saginor¹

    2011-12-01

    Full Text Available Con el principal objetivo de realizar mejores cálculos de la producción volcánica, en el Arco Volcánico de América Central, realizamos 61 dataciones 40Ar/39Ar en tefras y lavas en localidades de frente volcánico de Costa Rica y Nicaragua por medio de varias campañas de campo y análisis de laboratorio (preparación de muestras, envió al reactor nuclear, espectroscopía de masas de las muestras radiactivas, al laboratorio de gases nobles del Departamento de Ciencias de la Tierra y Planetarias de la Universidad Rutgers del 2002-2008. En este artículo presentamos diferentes observaciones que resultaron de este estudio donde se describe la precisión, exactitud y la confiabilidad de las edades 40Ar/39Ar. El primer resultado muestra las limitaciones de esta técnica en muestras baja en K2O con edades To better estimate the extrusive flux of the Central American Arc, from 2002-2008, we obtained sixty one high precision 40Ar/39Ar ages on geographically well-situated lavas and tephra from Costa Rica and Nicaragua. Here, we describe a number of observations encountered during this study using four examples that well document the precision, accuracy and general reliability of the 40Ar/39Ar ages. First, low K2O values, particularly in samples from Nicaragua, is a major limitation in or attempts to obtain reliable dates on samples under 1 My. Second, extensive weathering of samples due to the tropical climate of Central America has resulted in various levels of argon loss even when the hand sample appeared unaltered. Third, our field and geochronological data lead us to conclude that eruptive rates have not been constant over the past 15 to 20 My, but rather appears punctuated by gaps of up to several million years. We attempted to address the temporal gaps in several ways. First, geochemical analyses were used to identify samples that may have erupted during time periods without known volcanism. For example, U/Th values in the active Central

  1. Constraining the alteration history of a Late Cretaceous Patagonian volcaniclastic bentonite-ash-mudstone sequence using K-Ar and 40Ar/39Ar isotopes

    Science.gov (United States)

    Warr, L. N.; Hofmann, H.; van der Pluijm, B. A.

    2017-01-01

    Smectite is typically considered unsuitable for radiometric dating, as argon (40Ar) produced from decay of exchangeable potassium (40K) located in the interlayer sites can be lost during fluid-rock interaction and/or during wet sample preparation in the laboratory. However, age analysis of Late Cretaceous Argentinian bentonites and associated volcaniclastic rocks from Lago Pellegrini, Northern Patagonia, indicates that, in the case of these very low-permeability rocks, the radioactive 40Ar was retained and thus can provide information on smectite age and the timing of rock alteration. This study presents isotopic results that indicate the ash-to-bentonite conversion and alteration of the overlying tuffaceous mudstones in Northern Patagonia was complete 13-17 my after middle Campanian sedimentation when the system isotopically closed. The general absence of illite in these smectite-rich lithologies reflects the low activity of K and the low temperature (<60 °C) of the formation waters that altered the parent ash.

  2. Análise da qualidade do ar interior sob a abordagem da manutenção preditiva e da inovação

    Directory of Open Access Journals (Sweden)

    André Marques Cavalcanti

    2015-01-01

    Full Text Available The quality of indoor air has a direct influence on the welfare of persons occupying or moving through these spaces. The use of indoor climate control systems arises from the need to provide comfortable conditions for the occupants, as well as providing systems that protect them from impurities in the air. In some environments with climate control, occupants can develop diseases, such as fatigue, infections, irritation of the eyes and mucous membranes, nausea, dizziness, etc. According to the WHO, these symptoms are characteristic of “Sick Building Syndrome”. This article, through a descriptive and exploratory methodology, deals with the assessment of the quality of indoor air, pointing to predictive maintenance and its innovative aspects as factors that minimize the causative agents of diseases that may arise in these environments. For this, we analyzed ten clients of a company specializing in climate-control systems. The results revealed noncompliance in some aspects that were analyzed, enabling the preparation of an action plan for compliance with all legal standards.

  3. Infrared absorption spectroscopy of CO 2-Ar complexes

    Science.gov (United States)

    Sharpe, S. W.; Sheeks, R.; Wittig, C.; Beaudet, R. A.

    1988-10-01

    The ν 4 rovibrational band of CO 2-Ar near 2350 cm -1 (i.e. CO 2 asymmetric stretch) has been recorded in absorption at 8 K using a tunable diode laser. Rotational constants for both ν 4=0 and 1 are very similar, and indicate a T-shaped geometry. It was not possible to detect this species mass spectrometrically (18-70 eV electrons), indicating extensive fragmentation.

  4. BUSINESS ETHICS: THE CASE OF AR CONSULTORIA LTD A

    Directory of Open Access Journals (Sweden)

    Fernando Fantoni Bencke

    2014-03-01

    business: the significant taxes, lack of incentives and credit available and the opportunity to “make a little extra” through informal sales. AR Consultoria’s entry to the market was marked by these and other difficulties. This case aims at presenting a real situation that can be found in some organizational sectors areas, which demands readers to take a decision and an ethical stance when faced with moral challenges.

  5. Secondary scintillation in Ar-CF$_4$ mixtures

    CERN Document Server

    Beschi, Andrea

    2015-01-01

    In order to build a optical time projection chamber that can be used as a tracking detector, it is necessary to study the scintillation proprieties of gases in order to optimize the light emission. A detailed study of the scintillation of Ar-CF$_4$ mixtures at different concentrations has been performed to study the light emission of the gas in a triple GEM detector.

  6. arXiv in the classical Russian literature

    CERN Document Server

    Silagadze, Z K

    2012-01-01

    The creation of arXiv, a highly democratic open access repository of research papers in high-energy physics more than twenty years ago was undoubtedly the most spectacular and landmark event for the high-energy physics community. However, we report a curious observation which indicates that the general cultural significance of this event extends far beyond the boundaries assumed at the beginning.

  7. Immune epitope database analysis resource (IEDB-AR)

    DEFF Research Database (Denmark)

    Zhang, Qing; Wang, Peng; Kim, Yohan;

    2008-01-01

    We present a new release of the immune epitope database analysis resource (IEDB-AR, http://tools.immuneepitope.org), a repository of web-based tools for the prediction and analysis of immune epitopes. New functionalities have been added to most of the previously implemented tools, and a total...... of eight new tools were added, including two B-cell epitope prediction tools, four T-cell epitope prediction tools and two analysis tools....

  8. Selective AR Modulators that Distinguish Proliferative from Differentiative Gene Promoters

    Science.gov (United States)

    2015-08-01

    dependent compound screen, aided by the University of Michigan Center for Chemical Genomics . Differential AR activation in transfected cells was assessed...WR, Parker JS, Lee MX, Kass EM, Spratt DE, Iaquinta PJ, Arora VK, Yen WF, Cai L, Zheng D, Carver BS, Chen Y, Watson PA, Shah NP, Fujisawa S, Goglia...for known genes and genome -wide by ChIP-seq. Results will strengthen our overall hypothesis that genes with similar function (i.e

  9. Transfer ionization of the isocharge sequence ion and Ar collisions

    Institute of Scientific and Technical Information of China (English)

    Cai Xiao-Hong; Yu De-Yang; Cao Zhu-Rong; Lu Rong-Chun; Yang Wei; Shao Cao-Jie; Chen Xi-Meng

    2004-01-01

    The ratios of transfer ionization to single capture for isocharge Cq+, Nq+, Oq+, Neq+ ions on Ar atoms are measured by using position-sensitive and time-of-flight techniques. It is found that the ratio R1 increases with nuclear charge Z in a q=4 sequence, and the ratio R1 sequences have the minimum values at Z=7 and Z=8 in q=5 and q=6 sequences, respectively, and the ratio R1 decreases with the increase in the nuclear charge Z in a q=7 sequence. The results may be explained within the frame of the statistical model. It may be concluded that the transfer ionization depends remarkably upon the electronic structure of the projectile. The projectiles used in this study have the same charge state and velocity, but different electronic structures. The dependence of the ratio R1 on q is studied for Neq+-Ar collisions. The ratio R1 is found to increase as q increases for Neq+-Ar collisions. The measured dependence of the ratio R1 on q is compared with the calculation using the molecular Coulomb over-barrier model.

  10. Production of Ar metastables in a dielectric barrier discharge

    Science.gov (United States)

    Mikheyev, Pavel A.; Han, Jiande; Clark, Amanda; Sanderson, Carl; Heaven, Michael C.

    2017-01-01

    The results of experiments with a dielectric barrier discharge (DBD) are presented, where the production of metastable argon atoms was studied. The recently proposed optically pumped all-rare-gas laser (OPRGL) utilizes metastable atoms of heavier rare gases as lasing species. The required number density of metastables for efficient laser operation is 1012÷1013 cm-3 in an atmospheric pressure of He buffer gas. Recent experiments had shown that such densities are easily produced in a nanosecond pulsed discharge, even at pressures larger than atmospheric, but problems appear when one is trying to produce them in a CW regime. The reason for difficulties in the CW production of metastables at an atmospheric pressure seems to be the low value of the E/N parameter (DBD in 2-5% Ar mixture with He at an atmospheric pressure was studied. [Ar(1s5)] number density of the order of 1012 cm-3 was readily achieved. Temporal behavior of [Ar(1s5)] throughout the DBD cycle was obtained. The results demonstrate the feasibility of DBDs for OPRGL development.

  11. Electrical properties and dielectric spectroscopy of Ar+ implanted polycarbonate

    Science.gov (United States)

    Chawla, Mahak; Shekhawat, Nidhi; Aggarwal, Sanjeev; Sharma, Annu; Nair, K. G. M.

    2015-05-01

    The aim of the present paper is to study the effect of argon ion implantation on electrical and dielectric properties of polycarbonate. Specimens were implanted with 130 keV Ar+ ions in the fluence ranging from 1×1014 to 1×1016 ions cm-2. The beam current used was ˜0.40 µA cm-2. The electrical conduction behaviour of virgin and Ar+ implanted polycarbonate specimens have been studied through current-voltage (I-V characteristic) measurements. It has been observed that after implantation conductivity increases with increasing ion fluence. The dielectric spectroscopy of these specimens has been done in the frequency range of 100 kHz-100 MHz. Relaxation processes were studied by Cole-Cole plot of complex permittivity (real part of complex permittivity, ɛ' vs. imaginary part of complex permittivity, ɛ″). The Cole-Cole plots have also been used to determine static dielectric constant (ɛs), optical dielectric constant (ɛ∞), spreading factor (α), average relaxation time (τ0) and molecular relaxation time (τ). The dielectric behaviour has been found to be significantly affected due to Ar+ implantation. The possible correlation between this behaviour and the changes induced by the implantation has been discussed.

  12. Los Espacios interiores de la Vivienda y el diseño de interiores en Hoteles para el turismo.

    OpenAIRE

    Yunior Vázquez Rodríguez

    2011-01-01

    Desde hace más de dos décadas y como ya se hace costumbre según se ha comprobado en muchos casos, el diseño de interiores por lo general se emplea en las obras para el turismo y en alguna otra de gran interés por su importancia o significación determinada. Esto no quiere decir que las obras de la vivienda no deban de ser diseñadas en sus espacios interiores y mucho menos que sean obras de baja importancia. En muchos de nuestros hoteles de Varadero podemos encontrar elementos de diseño interio...

  13. Isolated neutron stars and studies of their interiors

    Science.gov (United States)

    Popov, S. B.

    2012-12-01

    In these lectures presented at Baikal summer school on physics of elementary particles and astrophysics 2011, I present a wide view of neutron star astrophysics with special attention paid to young isolated compact objects and studies of the properties of their interiors using astronomical methods.

  14. The interior transmission problem and bounds on transmission eigenvalues

    CERN Document Server

    Hitrik, Michael; Ola, Petri; Päivärinta, Lassi

    2010-01-01

    We study the interior transmission eigenvalue problem for sign-definite multiplicative perturbations of the Laplacian in a bounded domain. We show that all but finitely many complex transmission eigenvalues are confined to a parabolic neighborhood of the positive real axis.

  15. The Neutron star Interior Composition Explorer (NICER): design and development

    DEFF Research Database (Denmark)

    Gendreau, Keith C.; Arzoumanian, Zaven; Adkins, Phillip W.;

    2016-01-01

    During 2014 and 2015, NASA's Neutron star Interior Composition Explorer (NICER) mission proceeded successfully through Phase C, Design and Development. An X-ray (0.2-12 keV) astrophysics payload destined for the International Space Station, NICER is manifested for launch in early 2017 on the Comm...

  16. Some Geometric Inequalities Relating to an Interior Point in Triangle

    Science.gov (United States)

    Wu, Yu-Dong; Zhang, Zhi-Hua; Liang, Chun-Lei

    2010-01-01

    In this short note, by using one of Li and Liu's theorems [K.-H. Li, "The solution of CIQ. 39," "Commun. Stud. Inequal." 11(1) (2004), p. 162 (in Chinese)], "s-R-r" method, Cauchy's inequality and the theory of convex function, we solve some geometric inequalities conjectures relating to an interior point in triangle. (Contains 1 figure.)

  17. Generators with interior degeneracy on spaces of L^2 type

    Directory of Open Access Journals (Sweden)

    Genni Fragnelli

    2012-10-01

    Full Text Available We consider operators in divergence and in nondivergence form with degeneracy at the interior of the space domain. Characterizing the domain of the operators, we prove that they generate positive analytic semigroups on spaces of L^2 type. Finally, some applications to linear and semilinear parabolic evolution problems and to linear hyperbolic ones are presented.

  18. The Numerical Method of Inversion for the Interior Radon Transform

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    The interior Radon transform arises from a limited data problem in computerized tomography.The corresponding operator R is investigated as a mapping between weightedL2- spaces. Our result is the explicit construction of a singular value decomposition for R. This immediately leads to an inversion formula by series expansion and range characterizations.

  19. A POSITIVE INTERIOR-POINT ALGORITHM FOR NONLINEAR COMPLEMENTARITY PROBLEMS

    Institute of Scientific and Technical Information of China (English)

    马昌凤; 梁国平; 陈新美

    2003-01-01

    A new iterative method, which is called positive interior-point algorithm, is presented for solving the nonlinear complementarity problems. This method is of the desirable feature of robustness. And the convergence theorems of the algorithm is established. In addition, some numerical results are reported.

  20. Isolated neutron stars and studies of their interiors

    OpenAIRE

    Popov, S. B.

    2011-01-01

    In these lectures presented at Baikal summer school on physics of elementary particles and astrophysics 2011, I present a wide view of neutron star astrophysics with special attention paid to young isolated compact objects and studies of the properties of neutron star interiors using astronomical methods.

  1. Modelling of Building Interiors with Mobile Phone Sensor Data

    Directory of Open Access Journals (Sweden)

    Julian Rosser

    2015-06-01

    Full Text Available Creating as-built plans of building interiors is a challenging task. In this paper we present a semi-automatic modelling system for creating residential building interior plans and their integration with existing map data to produce building models. Taking a set of imprecise measurements made with an interactive mobile phone room mapping application, the system performs spatial adjustments in accordance with soft and hard constraints imposed on the building plan geometry. The approach uses an optimisation model that exploits a high accuracy building outline, such as can be found in topographic map data, and the building topology to improve the quality of interior measurements and generate a standardised output. We test our system on building plans of five residential homes. Our evaluation shows that the approach enables construction of accurate interior plans from imprecise measurements. The experiments report an average accuracy of 0.24 m, close to the 0.20 m recommended by the CityGML LoD4 specification.

  2. Penerapan Tipografi dalam Sistem Signage pada Interior Ruang Publik

    OpenAIRE

    Ulli Aulia Ruki; Amarena Nediari

    2014-01-01

    Sistem signage diaplikasikan pada sebuah interior ruang publik dengan memerhatikan dasar tipografi. Manfaat signage adalah memberikan kemudahan para pengguna ruang publik dalam mencapai tujuan saat mereka berada di dalam sebuah bangunan. Hal mendasar yang perlu diperhatikan dalam merencanakan sistem signage adalah kejelasan bentuk huruf serta kemudahan untuk dibaca. Masih banyak desainer yang kurang memerhatikan desain signage, sehingga terkadang desainnya memberikan kesan hanya s...

  3. Mercury’s Tides As a Window to its Interior

    Science.gov (United States)

    Padovan, Sebastiano; Margot, J. L.; Hauck, S. A., II; Solomon, S. C.

    2012-10-01

    Measurements of the obliquity and forced librations of Mercury, along with the precise determination of the static component of the gravitational field obtained by MESSENGER, provide estimates of the polar moment of inertia of the planet and of the planet’s outer solid shell. Although these data greatly improve our knowledge of the planet’s interior, the process of inverting geodetic observations to infer the interior structure is highly non-unique, and a wide range of models are compatible with the available observations. The recent determination of the tidal component of the gravitational field, particularly the Love number k2, can provide additional constraints on the interior structure of Mercury. The orbital timescale that characterizes the tidal action of the Sun is sufficiently short that the response of materials inside Mercury is dictated both by their elastic properties and by their physical state (e.g., solid or liquid). The presence of a liquid layer below the mantle should then manifest itself in the tidal component of the gravity field. Furthermore, it has recently been suggested that a dense solid metallic layer might surround the fluid core and form the bottom of the planet’s outer solid shell. If present, this layer, depending on its thickness and material properties, may influence the tidal response of Mercury. Calculations of the tidal response for a variety of interior models for Mercury provide a basis for comparison with observations.

  4. Research on the Interior Sound Quality in Hybrid Electric Vehicle

    Directory of Open Access Journals (Sweden)

    Liao Lian Ying

    2016-01-01

    Full Text Available Even the overall level of vehicle interior noise of hybrid electric vehicle (HEV reduced to a certain degree, the vibration and noise generated by the engine, motor, generator and power split have made greater effect on the vehicle interior sound quality in HEV. In order to research the feature of vehicle interior sound quality in HEV, the HEV is used to be the research object, the binaural noise sample of the driver when playing different kinds of music in the vehicle with the speed of sixty kilometers per hour is collected. ArtemiS is used to conduct frequency division processing, so as to obtain the relative weight of each frequency band and the overall noise. The tone, roughness and sharpness of sound quality subjective evaluation parameters are quantified, the SPSS is used to establish the linear regression model of the sample, and the best masking music tracks are found out. Then, the sound samples that contains the best music tracks and the simple vehicle interior noise are re-collected, the regression model and ArtemiS are used to predict the subjective evaluation value. The research results show that when adding the music, the tone degree rises and the lowering degree decreases, thus the disturbing degree reduces, which significantly improves the sound quality in the HEV.

  5. Computer-assisted ergonomic analysis for vehicle interior design

    NARCIS (Netherlands)

    Punte, P.A.J.; Oudenhuijzen, A.J.K.

    2000-01-01

    TNO Human Factors is involved in the process of designing and testing a new concept for driver workplaces in passenger cars, i.e. with a horizontally fixed driver seat and adjustable pedals, steering wheel and instrument panel. This new concept is intended to achieve an interior space and arrangemen

  6. Physical and subjective studies of aircraft interior noise and vibration

    Science.gov (United States)

    Stephens, D. G.; Leatherwood, J. D.

    1979-01-01

    Measurements to define and quantify the interior noise and vibration stimuli of aircraft are reviewed as well as field and simulation studies to determine the subjective response to such stimuli, and theoretical and experimental studies to predict and control the interior environment. In addition, ride quality criteria/standards for noise, vibration, and combinations of these stimuli are discussed in relation to the helicopter cabin environment. Data on passenger response are presented to illustrate the effects of interior noise and vibration on speech intelligibility and comfort of crew and passengers. The interactive effects of noise with multifrequency and multiaxis vibration are illustrated by data from LaRC ride quality simulator. Constant comfort contours for various combinations of noise and vibration are presented and the incorporation of these results into a user-oriented model are discussed. With respect to aircraft interior noise and vibration control, ongoing studies to define the near-field noise, the transmission of noise through the structure, and the effectiveness of control treatments are described.

  7. U-CrAc Flexible Interior Doctrine, Agile Learning Environments

    DEFF Research Database (Denmark)

    Poulsen, Søren Bolvig; Rosenstand, Claus Andreas Foss

    2012-01-01

    The research domain of this article is flexible learning environment for immediate use. The research question is: How can the learning environment support an agile learning process? The research contribution of this article is a flexible interior doctrine. The research method is action research...

  8. The Integration of Interior Architecture Education with Digital Design Approaches

    Science.gov (United States)

    Yazicioglu, Deniz Ayse

    2011-01-01

    It is inevitable that as a result of progress in technology and the changes in the ways with which design is conceived, interior architecture schools should be updated according to these requirements and that new educational processes should be tried out. It is for this reason that the scope and aim of this study have been determined as being the…

  9. Non-static vacuum strings: exterior and interior solutions

    Energy Technology Data Exchange (ETDEWEB)

    Stein-Schabes, J.A.

    1986-01-01

    New non-static cylindrically symmetric solutions of Einsteins's equations are presented. Some of these solutions represent string-like objects. An exterior vacuum solution is matched to a non-vacuum interior solution for different forms of the energy-momentum tensor. They generalize the standard static string. 12 refs.

  10. Distributed Interior-point Method for Loosely Coupled Problems

    DEFF Research Database (Denmark)

    Pakazad, Sina Khoshfetrat; Hansson, Anders; Andersen, Martin Skovgaard

    2014-01-01

    ’s method and utilizes proximal splitting to distribute the computations for calculating the Newton step at each iteration. A combination of this algorithm and the interior-point method is then used to introduce a distributed algorithm for solving constrained loosely coupled problems. We also provide...

  11. The Attitudes of Interior Design Students towards Sustainability

    Science.gov (United States)

    Ruff, Caimen Leigh; Olson, Margot A.

    2009-01-01

    To measure attitudes toward environmental issues, interior design students responded to a four-part survey: demographics, ecology, sustainability, and comments. The ecology section was composed of modifications of questions from the New Ecological Paradigm Scale (Dunlap et al. "Journal of Environmental Education," 9:10-19, 2000). The researchers…

  12. Improving FCS Accountability: Increasing STEM Awareness with Interior Design Modules

    Science.gov (United States)

    Etheredge, Jessica; Moody, Dana; Cooper, Ashley

    2014-01-01

    This paper demonstrates ways in which family and consumer sciences (FCS) educators can explore more opportunities to integrate Science, Technology, Engineering, and Math (STEM) principles into secondary education curriculum. Interior design is used as a case study for creating learning modules that incorporate STEM principles in a creative and…

  13. Emergency evacuation : how better interior design can improve passenger flow

    NARCIS (Netherlands)

    Boer, L.C.; Skjong, R.

    2001-01-01

    The paper presents some conclusions from the EU basic research project "MEPdesign" relevant for design of ship interiors. The findings are discussed with regard to passenger flow as a function of design parameters. The paper explains that current evacuation analyses may be overly optimistic. The con

  14. Possibilities to improve the aircraft interior comfort experience

    NARCIS (Netherlands)

    Vink, P.; Bazley, C.; Kamp, I.; Blok, M.

    2012-01-01

    Comfort plays an increasingly important role in the interior design of airplanes. Although ample research has been conducted on airplane design technology, only a small amount of public scientific information is available addressing the passenger's opinion. In this study, more than 10,000 internet t

  15. Group Dynamics in the Interior Design Studio: Student Perceptions

    Science.gov (United States)

    Hill, Caroline

    2008-01-01

    This article presents the findings of a study measuring the classroom climates in collegiate interior design studios and considers these findings within the group dynamics theory framework. Three groups of students completed the College Classroom Environment Scales (CCES) questionnaire. Five of the six CCES subscale F ratios were statistically…

  16. Group Projects in Interior Design Studio Classes: Peer Feedback Benefits

    Science.gov (United States)

    Jurado, Juan A.

    2011-01-01

    Group projects have been shown to be effective for providing peer feedback in classrooms. While students in regular enrollment classes benefit from peer feedback, low-enrollment classes face many challenges. This study compares peer feedback effectiveness between two interior design studio classes with different design projects. In one class,…

  17. Service-Learning and Interior Design: A Case Study

    Science.gov (United States)

    Sterling, Mary

    2007-01-01

    The case study approach was used to analyze experiential learning through its three components: knowledge, action, and reflection. Two interior design courses were integrated through a university service-learning project. The restoration/adaptive reuse of a 95-year-old library building was to serve as a prototype for future off-campus…

  18. Measure Guideline: Summary of Interior Ducts in New Construction, Including an Efficient, Affordable Method to Install Fur-Down Interior Ducts

    Energy Technology Data Exchange (ETDEWEB)

    Beal, D. [BA-PIRC, Cocoa, FL (United States); McIlvaine, J. [BA-PIRC, Cocoa, FL (United States); Fonorow, K. [BA-PIRC, Cocoa, FL (United States); Martin, E. [BA-PIRC, Cocoa, FL (United States)

    2011-11-01

    This document illustrates guidelines for the efficient installation of interior duct systems in new housing, including the fur-up chase method, the fur-down chase method, and interior ducts positioned in sealed attics or sealed crawl spaces.

  19. Fractal symmetry of protein interior: what have we learned?

    Science.gov (United States)

    Banerji, Anirban; Ghosh, Indira

    2011-08-01

    The application of fractal dimension-based constructs to probe the protein interior dates back to the development of the concept of fractal dimension itself. Numerous approaches have been tried and tested over a course of (almost) 30 years with the aim of elucidating the various facets of symmetry of self-similarity prevalent in the protein interior. In the last 5 years especially, there has been a startling upsurge of research that innovatively stretches the limits of fractal-based studies to present an array of unexpected results on the biophysical properties of protein interior. In this article, we introduce readers to the fundamentals of fractals, reviewing the commonality (and the lack of it) between these approaches before exploring the patterns in the results that they produced. Clustering the approaches in major schools of protein self-similarity studies, we describe the evolution of fractal dimension-based methodologies. The genealogy of approaches (and results) presented here portrays a clear picture of the contemporary state of fractal-based studies in the context of the protein interior. To underline the utility of fractal dimension-based measures further, we have performed a correlation dimension analysis on all of the available non-redundant protein structures, both at the level of an individual protein and at the level of structural domains. In this investigation, we were able to separately quantify the self-similar symmetries in spatial correlation patterns amongst peptide-dipole units, charged amino acids, residues with the π-electron cloud and hydrophobic amino acids. The results revealed that electrostatic environments in the interiors of proteins belonging to 'α/α toroid' (all-α class) and 'PLP-dependent transferase-like' domains (α/β class) are highly conducive. In contrast, the interiors of 'zinc finger design' ('designed proteins') and 'knottins' ('small proteins') were identified as folds with the least conducive electrostatic

  20. 40Ar/39Ar Dating of Zn-Pb-Ag Mineralization in the Northern Brooks Range, Alaska

    Science.gov (United States)

    Werdon, Melanie B.; Layer, Paul W.; Newberry, Rainer J.

    2004-01-01

    The 40Ar/39Ar laser step-heating method potentially can be used to provide absolute ages for a number of formerly undatable, low-temperature ore deposits. This study demonstrates the use of this method by determining absolute ages for Zn-Pb-Ag sediment-hosted massive sulfide deposits and vein-breccia occurrences found throughout a 300-km-long, east-west-trending belt in the northern Brooks Range, Alaska. Massive sulfide deposits are hosted by Mississippian to Pennsylvanian(?) black carbonaceous shale, siliceous mudstone, and lesser chert and carbonate turbidites of the Kuna Formation (e.g., Red Dog, Anarraaq, Lik (Su), and Drenchwater). The vein-breccia occurrences (e.g., Husky, Story Creek, West Kivliktort Mountain, Vidlee, and Kady) are hosted by a deformed but only weakly metamorphosed package of Upper Devonian to Lower Mississippian mixed continental and marine clastic rocks (the Endicott Group) that stratigraphically underlie the Kuna Formation. The vein-breccias are mineralogically similar to, but not spatially associated with, known massive sulfide deposits. The region's largest shale-hosted massive sulfide deposit is Red Dog; it has reserves of 148 Mt grading 16.6 percent zinc, 4.5 percent lead, and 77 g of silver per tonne. Hydrothermally produced white mica in a whole-rock sample from a sulfide-bearing igneous sill within the Red Dog deposit yielded a plateau age of 314.5 Ma. The plateau age of this whole-rock sample records the time at which temperatures cooled below the argon closure temperature of the white mica and is interpreted to represent the minimum age limit for massive sulfide-related hydrothermal activity in the Red Dog deposit. Sulfide-bearing quartz veins at Drenchwater crosscut a hypabyssal intrusion with a maximum biotite age of 337.0 Ma. Despite relatively low sulfide deposition temperatures in the vein-breccia occurrences (162°-251°C), detrital white mica in sandstone immediately adjacent to large vein-breccia zones was partially to

  1. Charge-exchange, ionization and excitation in low-energy Li$^{+}-$ Ar, K$^{+}-$ Ar, and Na$^{+}-$He collisions

    CERN Document Server

    Lomsadze, Ramaz A; Kezerashvili, RomanYa; Schulz, Michael

    2016-01-01

    Absolute cross sections are measured for charge-exchange, ionization, and excitation within the same experimental setup for the Li$^{+}-$Ar, K$^{+}-$ Ar, and Na$^{+}-$ He collisions in the ion energy range $0.5-10$ keV. Results of our measurements along with existing experimental data and the schematic correlation diagrams are used to analyze and determine the mechanisms for these processes. The experimental results show that the charge-exchange processes are realized with high probabilities and electrons are predominately captured in ground states. The cross section ratio for charge exchange, ionization and excitation processes roughly attains the value $10:2:1$, respectively. The contributions of various partial inelastic channels to the total ionization cross sections are estimated and a primary mechanism for the process is defined. The energy-loss spectrum, in addition, is applied to estimate the relative contribution of different inelastic channels and to determine the mechanisms for the ionization and f...

  2. 40Ar/39Ar dating of shear deformation of the Xianshuihe fault zone in west Sichuan and its tectonic significance

    Institute of Scientific and Technical Information of China (English)

    ZHANG; Yueqiao; CHEN; Wen; YANG; Nong

    2004-01-01

    Based on field geological survey, structural measurements and classical 40Ar/39Ar dating of mica, biotite and K-feldspar, we obtain cooling ages for Miocene left-lateral shear along the Xianshuihe fault zone. The results document two thermal events during the sinistral shear.The early event (12-10 Ma) corresponds to rapid cooling of the Zheduoshan granitic massif from above 700℃ to below 350℃. The late event (5-3.5 Ma) corresponds to cooling of granites intruded along the eastern side of the fault zone. These dating results provide important thermochronological constraint on the timing of late Cenozoic eastward extrusion of the Chuan-Dian Block in the SE Tibetan margin.

  3. Emplacement of Amba Dongar Carbonatite-alkaline Complex at Cretaceous/Tertiary Boundary: Evidence from 40Ar-39Ar Chronology

    Indian Academy of Sciences (India)

    Jyotiranjan S Ray; Kanchan Pande; T R Venkatesan

    2000-03-01

    40Ar-39Ar analyses of three fresh alkaline rock samples and a phlogopite separate from a carbonatite from Amba Dongar carbonatite-alkaline complex of the Deccan Flood Basalt Province, India, yield indistinguishable precise plateau ages of 64.8 ± 0.6, 64.7 ± 0.5, 65.5 ± 0.8 and 65.3 ± 0.6 Ma, giving a mean plateau age of 65.0 ± 0.3 Ma, which is the age of emplacement of this complex. This age implies contemporaneity of Amba Dongar with several other carbonatite-alkaline activities of Chhota Udaipur subprovince and is consistent with their Reunion-Deccan plume origin hypothesis. The emplacement of these complexes at 65 Ma makes them very significant in the ongoing debate on the K/T extinctions owing to their capacity to rapidly inject a substantial amount of CO2 and SO2 into the atmosphere.

  4. Age of the youngest volcanism at Eagle Lake, northeastern California—40Ar/39Ar and paleomagnetic results

    Science.gov (United States)

    Clynne, Michael A.; Calvert, Andrew T.; Champion, Duane E.; Muffler, L.J.P.; Sawlan, Michael G.; Downs, Drew T.

    2017-03-22

    The age of the youngest volcanism at Eagle Lake, California, was investigated using stratigraphic, paleomagnetic, and 40Ar/39Ar techniques. The three youngest volcanic lava flows at Eagle Lake yielded ages of 130.0±5.1, 127.5±3.2 and 123.6±18.7 ka, and are statistically indistinguishable. Paleomagnetic results demonstrate that two of the lava flows are very closely spaced in time, whereas the third is different by centuries to at most a few millennia. These results indicate that the basalt lava flows at Eagle Lake are not Holocene in age, and were erupted during an episode of volcanism at about 130–125 ka that is unlikely to have spanned more than a few thousand years. Thus, the short-term potential for subsequent volcanism at Eagle Lake is considered low. 

  5. Chromosomal context and replication properties of ARS plasmids in Schizosaccharomyces pombe

    Indian Academy of Sciences (India)

    Aditya S Pratihar; Vishnu P Tripathi; Mukesh P Yadav; Dharani D Dubey

    2015-12-01

    Short, specific DNA sequences called as Autonomously Replicating Sequence (ARS) elements function as plasmid as well as chromosomal replication origins in yeasts. As compared to ARSs, different chromosomal origins vary greatly in their efficiency and timing of replication probably due to their wider chromosomal context. The two Schizosaccharomyces pombe ARS elements, ars727 and ars2OO4, represent two extremities in their chromosomal origin activity - ars727 is inactive and late replicating, while ars2OO4 is a highly active, early-firing origin. To determine the effect of chromosomal context on the activity of these ARS elements, we have cloned them with their extended chromosomal context as well as in the context of each other in both orientations and analysed their replication efficiency by ARS and plasmid stability assays. We found that these ARS elements retain their origin activity in their extended/altered context. However, deletion of a 133-bp region of the previously reported ars727-associated late replication enforcing element (LRE) caused advancement in replication timing of the resulting plasmid. These results confirm the role of LRE in directing plasmid replication timing and suggest that the plasmid origin efficiency of ars2OO4 or ars727 remains unaltered by the extended chromosomal context.

  6. 75 FR 30750 - Drawbridge Operation Regulation; Arkansas Waterway, Little Rock, AR

    Science.gov (United States)

    2010-06-02

    ..., Little Rock, AR AGENCY: Coast Guard, DHS. ACTION: Notice of proposed rulemaking. SUMMARY: The Coast Guard... Waterway at mile 119.6 at Little Rock, AR, so that vessel operators will contact the remote drawbridge... the Baring Cross Railroad Drawbridge, mile 119.6, at Little Rock, AR is maintained in the...

  7. File list: Oth.ALL.20.AR.AllCell [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Oth.ALL.20.AR.AllCell hg19 TFs and others AR All cell types SRX595676,SRX595671,SRX...736053,SRX502068,SRX092448,SRX092447,SRX861678,SRX147604,SRX1033268 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/Oth.ALL.20.AR.AllCell.bed ...

  8. File list: Oth.Brs.05.AR.AllCell [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Oth.Brs.05.AR.AllCell hg19 TFs and others AR Breast SRX1339020,SRX1339018,SRX250092...,SRX1339019,SRX1339016,SRX1339017,SRX1339015 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/Oth.Brs.05.AR.AllCell.bed ...

  9. 75 FR 29656 - Amendment of Class E Airspace; Mountain View, AR

    Science.gov (United States)

    2010-05-27

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Mountain View, AR AGENCY... airspace for Mountain View, AR. Decommissioning of the Wilcox non-directional beacon (NDB) at Mountain View Wilcox Memorial Field Airport, Mountain View, AR, has made this action necessary to enhance the...

  10. Geochemical and 40Ar/39Ar constraints on the evolution of volcanism in the Woodlark Rift, Papua New Guinea

    Science.gov (United States)

    Catalano, Joseph P.

    The tectonic mechanisms producing Pliocene to active volcanism in eastern Papua New Guinea (PNG) have been debated for decades. In order to assess mechanisms that produce volcanism in the Woodlark Rift, we evaluate the evolution of volcanism in eastern PNG using 40Ar/39Ar thermochronology and whole rock geochemistry. Active volcanism in southeastern Papua New Guinea occurs on the Papuan Peninsula (Mt. Lamington, Mt. Victory and Waiwa), in the Woodlark Rift (Dobu Island, SE Goodenough Island, and Western Fergusson Island), and in the Woodlark Basin. In the Woodlark Basin, seafloor spreading is active and decompression melting of the upper mantle is producing basaltic magmatism. However, the cause of Pliocene and younger volcanism in the Woodlark Rift is controversial. Two hypotheses for the tectonic setting have been proposed to explain Pliocene and younger volcanism in the Woodlark Rift: (1) southward subduction of Solomon Sea lithosphere beneath eastern PNG at the Trobriand Tough and (2) decompression melting of mantle, previously modified by subduction, as the lithosphere undergoes extension associated with the opening of the Woodlark Basin. A comparison of 40Ar/39Ar ages with high field strength element (HFSE) concentrations in primary magmas indicates that HFSE concentrations correlate with age in the Woodlark rift. These data support the hypothesis that Pliocene to active volcanism in the Woodlark Rise and D'Entrecasteaux Islands results from decompression melting of a relict mantle wedge. The subduction zone geochemical signatures (negative HFSE anomalies) in Woodlark Rift lavas younger than 4 m.y. are a relict from older subduction beneath eastern Papua, likely in the middle Miocene. As the lithosphere is extended ahead of the tip of the westward propagating seafloor spreading center in the Woodlark Basin, the composition of volcanism is inherited from prior arc magmatism (via flux melting) and through time evolves toward magmatism associated with a rifting

  11. Detailed 40Ar/39Ar dating of geologic events associated with the Mantos Blancos copper deposit, northern Chile

    Science.gov (United States)

    Oliveros, Verónica; Féraud, Gilbert; Aguirre, Luis; Ramírez, Luis; Fornari, Michel; Palacios, Carlos; Parada, Miguel

    2008-03-01

    The 40Ar/39Ar geochronological method was applied to date magmatic and hydrothermal alteration events in the Mantos Blancos mining district in the Coastal Cordillera of northern Chile, allowing the distinction of two separate mineralization events. The Late Jurassic Mantos Blancos orebody, hosted in Jurassic volcanic rocks, is a magmatic-hydrothermal breccia-style Cu deposit. Two superimposed mineralization events have been recently proposed. The first event is accompanied by a phyllic hydrothermal alteration affecting a rhyolitic dome. The second mineralization event is related to the intrusion of bimodal stocks and sills inside the deposit. Because of the superposition of several magmatic and hydrothermal events, the obtained 40Ar/39Ar age data are complex; however, with a careful interpretation of the age spectra, it is possible to detect complex histories of successive emplacement, alteration, mineralization, and thermal resetting. The extrusion of Jurassic basic to intermediate volcanic rocks of the La Negra Formation is dated at 156.3 ± 1.4 Ma (2 σ) using plagioclase from an andesitic lava flow. The first mineralization event and associated phyllic alteration affecting the rhyolitic dome occurred around 155-156 Ma. A younger bimodal intrusive event, supposed to be equivalent to the bimodal stock and sill system inside the deposit, is probably responsible for the second mineralization event dated at ca. 142 Ma. Other low-temperature alteration events have been dated on sericitized plagioclase at ca. 145-146, 125, and 101 Ma. This is the first time that two distinct mineralization events have been documented from radiometric data for a copper deposit in the metallogenic belt of the Coastal Cordillera of northern Chile.

  12. Paleozoic accretionary orogenesis in the eastern Beishan orogen: constraints from zircon U-Pb and 40Ar/39Ar geochronology

    Science.gov (United States)

    Ao, Songjian; Xiao, Wenjiao; Windley, Brian; Mao, Qigui

    2016-04-01

    The continental growth mechanism of the Altaids in Central Asia is still in controversy between models of continuous subduction-accretion versus punctuated accretion by closure of multiple oceanic basins. The Beishan orogenic belt, located in the southern Altaids, is a natural laboratory to address this controversy. Key questions that are heavily debated are: the closure time and subduction polarity of former oceans, the emplacement time of ophiolites, and the styles of accretion and collision. This paper reports new structural data, zircon ages and Ar-Ar dates from the eastern Beishan Orogen that provide information on the accretion process and tectonic affiliation of various terranes. Our geochronological and structural results show that the younging direction of accretion was northwards and the subduction zone dipped southwards under the northern margin of the Shuangyingshan micro-continent. This long-lived and continuous accretion process formed the Hanshan accretionary prism. Our field investigations show that the emplacement of the Xiaohuangshan ophiolite was controlled by oceanic crust subduction beneath the forearc accretionary prism of the Shuangyingshan-Mazongshan composite arc to the south. Moreover, we address the age and terrane affiliation of lithologies in the eastern Beishan orogen through detrital zircon geochronology of meta-sedimentary rocks. We provide new information on the ages, subduction polarities, and affiliation of constituent structural units, as well as a new model of tectonic evolution of the eastern Beishan orogen. The accretionary processes and crustal growth of Central Asia were the result of multiple sequences of accretion and collision of manifold terranes. Reference: Ao, S.J., Xiao, W., Windley, B.F., Mao, Q., Han, C., Zhang, J.e., Yang, L., Geng, J., Paleozoic accretionary orogenesis in the eastern Beishan orogen: Constraints from zircon U-Pb and 40Ar/39Ar geochronology. Gondwana Research, doi: http://dx.doi.org/10.1016/j

  13. Pneumatically sprayed Cu2ZnSnS4 films under Ar and Ar-H2 atmosphere

    Science.gov (United States)

    Espindola Rodriguez, M.; Sylla, D.; Sanchez, Y.; López-Marino, S.; Fontané, X.; López-García, J.; Placidi, M.; Pérez-Rodríguez, A.; Vigil-Galán, O.; Saucedo, E.

    2014-06-01

    Cu2ZnSnS4 (CZTS) thin films have been deposited by pneumatic spray pyrolysis onto soda-lime glass and Mo-coated glass substrates by using a special reactor designed for working under controlled atmospheres. The films were grown using both Ar and Ar-H2 as the carrier gas and atmosphere, aiming to eliminate the oxygen-containing atmosphere from the classical spray pyrolysis configuration that uses air as the carrier gas. Thin films with different compositions were prepared and thermally annealed to investigate its compositional and physical properties and its performance as absorber layers in solar cells. To know the impact of the thermal annealing, two different annealing temperatures were used: 550 and 580 °C, both for 30 min. The last temperature showed a great improvement in the crystallinity and allowed a better incorporation of Sn into the films. The optical band gap of the annealed films was found to be around 1.45 eV. Cu-S and ZnO were found as contaminant phases in the as-grown Ar-sprayed samples, but were effectively transformed after annealing. ZnS was detected in both the as-grown and annealed films as the main secondary phase. Solar cells free of scarce elements were fabricated showing an improved conversion efficiency of 1.4%, evidencing the higher potential of this approach for the synthesis of device-grade films.

  14. Evaluation of sintering effects on SiC-incorporated UO2 kernels under Ar and Ar-4%H2 environments

    Science.gov (United States)

    Silva, Chinthaka M.; Lindemer, Terrence B.; Hunt, Rodney D.; Collins, Jack L.; Terrani, Kurt A.; Snead, Lance L.

    2013-11-01

    Silicon carbide (SiC) is suggested as an oxygen getter in UO2 kernels used for tristructural isotropic (TRISO) particle fuels and to prevent kernel migration during irradiation. Scanning electron microscopy and X-ray diffractometry analyses performed on sintered kernels verified that an internal gelation process can be used to incorporate SiC in UO2 fuel kernels. Even though the presence of UC in either argon (Ar) or Ar-4%H2 sintered samples suggested a lowering of the SiC up to 3.5-1.4 mol%, respectively, the presence of other silicon-related chemical phases indicates the preservation of silicon in the kernels during sintering process. UC formation was presumed to occur by two reactions. The first was by the reaction of SiC with its protective SiO2 oxide layer on SiC grains to produce volatile SiO and free carbon that subsequently reacted with UO2 to form UC. The second process was direct UO2 reaction with SiC grains to form SiO, CO, and UC. A slightly higher density and UC content were observed in the sample sintered in Ar-4%H2, but both atmospheres produced kernels with ˜95% of theoretical density. It is suggested that incorporating CO in the sintering gas could prevent UC formation and preserve the initial SiC content.

  15. WA1ms: A ∼2.61 Ga muscovite standard for 40Ar/39Ar dating

    Science.gov (United States)

    Jourdan, Fred; Frew, Adam; Joly, Aurore; Mayers, Celia; Evans, Noreen J.

    2014-09-01

    The 40Ar/39Ar dating technique requires the use of neutron fluence monitors (standards) to allow calculation of the age of a sample. Precise calibration of these standards is crucial to obtaining accurate ages and decreasing the uncertainties associated with 40Ar/39Ar dates. Few fully intercalibrated 40Ar/39Ar standards with a sufficient total fusion grain-to-grain reproducibility are currently in use in the argon community. For Precambrian samples, only Hb3gr hornblende (∼1.08 Ga) yields sufficient grain-to-grain reproducibility and has an appropriate age for acceptable argon isotopic ratio measurements. Here, we present chemical and intercalibration results for a new ∼2.61 Ga standard. WA1ms is a muscovite extracted from an Archaean shear zone in the Lake Johnston greenstone belt, Western Australia. In situ trace element analysis by ELA-ICPMS revealed consistent K contents, subtle zonation and intra-grain and grain-to-grain heterogeneities in Rb, Sr, Ti, and Fe but a lack of mineral inclusions.WA1ms has been investigated over 3 irradiations ranging from 25 to 40 h, in two reactors, with several disc positions and three grains sizes and has been calibrated against FCs and GA1550, and Hb3gr. Overall, we carried out 48 total fusion and 4 step-heating experiments of WA1ms crystals. Flat age spectra and average F-value (40Ar∗/39ArK) relative standard deviations ranging from of 0.43% to 0.60% (P = 0.15-0.83) for 47/48 analyses demonstrate the reproducibility of WA1ms and its suitability as a reliable 40Ar/39Ar standard. We calculated R[WA1ms/FCs] = 205.59 ± 0.25, R[WA1ms/GA1550] = 57.25 ± 0.06 and R[WA1ms/Hb3gr] = 3.9713 ± 0.014 (all with P > 0.14) allowing direct comparison between WA1ms and any standards in used in the community, provided that they have been calibrated against any of the three standards used in the calibration and regardless of the age adopted for each of these standards. The recently revised decay constant values and standard ages proposed

  16. Mars Atmospheric History Derived from Upper-Atmospheric Structure of 38Ar/36Ar Measured From MAVEN

    Science.gov (United States)

    Jakosky, Bruce; Slipski, Marek; Benna, Mehdi; Mahaffy, Paul; Elrod, Meredith K.; Yelle, Roger; Stone, Shane; Alsaeed, Noora

    2016-10-01

    Measurements of the structure of the Martian upper atmosphere made from MAVEN observations allow us to derive homopause and exobase altitudes in the Mars upper atmosphere and to determine the isotopic fractionation that occurs between them. Fractionation in the ratio of 38Ar/36Ar occurs between the homopause and exobase due to diffusive separation. This fractionation, combined with measurements of the bulk atmospheric ratio, is used to determine the total amount of argon lost to space by pick-up-ion sputtering. Our analysis is based on Rayleigh distillation, modified by replenishment of gas to the atmosphere by outgassing, impact, and crustal weathering. Approximately 80 % of the 36Ar that was ever in the atmosphere has been removed through time. This high value requires that a major fraction of Mars atmospheric gas has been lost to space. It points strongly to loss to space as having been the dominant mechanism driving the transition in Martian climate from an early, warm, wet environment to today's cold, dry, thin atmosphere.

  17. Effects of Ar or O2 Gas Bubbling for Shape, Size, and Composition Changes in Silver-Gold Alloy Nanoparticles Prepared from Galvanic Replacement Reaction

    Directory of Open Access Journals (Sweden)

    Md. Jahangir Alam

    2013-01-01

    Full Text Available The galvanic replacement reaction between silver nanostructures and AuCl4- solution has recently been demonstrated as a versatile method for generating metal nanostructures with hollow interiors. Here we describe the results of a systematic study detailing the morphological, structural, compositional, and spectral changes involved in such a heterogeneous reaction on the nanoscale. Effects of Ar or O2 gas bubbling for the formation of Ag-Au alloy nanoparticles by the galvanic replacement between spherical Ag nanoparticles and AuCl4- especially were studied in ethylene glycol (EG at 150°C. The shape, size, and composition changes occur rapidly under O2 bubbling in comparison with those under Ar bubbling. The major product after 60 min heating under Ar gas bubbling was perforated Ag-Au alloy particles formed by the replacement reaction and the minor product was ribbon-type particles produced from splitting off some perforated particles. On the other hand, the major product after 60 min heating under O2 gas bubbling was ribbon-type particles. In addition, small spherical Ag particles are produced. They are formed through rereduction of Ag+ ions released from the replacement reaction and oxidative etching of Ag nanoparticles by O2/Cl− in EG.

  18. 40Ar* loss in experimentally deformed muscovite and biotite with implications for 40Ar/39Ar geochronology of naturally deformed rocks

    Science.gov (United States)

    Cosca, Michael; Stunitz, Holger; Bourgiex, Anne-Lise; Lee, John P.

    2011-01-01

    The effects of deformation on radiogenic argon (40Ar*) retentivity in mica are described from high pressure experiments performed on rock samples of peraluminous granite containing euhedral muscovite and biotite. Cylindrical cores, ~15 mm in length and 6.25 mm in diameter, were drilled from granite collected from the South Armorican Massif in northwestern France, loaded into gold capsules, and weld-sealed in the presence of excess water. The samples were deformed at a pressure of 10 kb and a temperature of 600 degrees C over a period 29 of hours within a solid medium assembly in a Griggs-type triaxial hydraulic deformation apparatus. Overall shortening in the experiments was approximately 10%. Transmitted light and secondary and backscattered electron imaging of the deformed granite samples reveals evidence of induced defects and for significant physical grain size reduction by kinking, cracking, and grain segmentation of the micas.

  19. Los Espacios interiores de la Vivienda y el diseño de interiores en Hoteles para el turismo.

    Directory of Open Access Journals (Sweden)

    Yunior Vázquez Rodríguez

    2011-01-01

    Full Text Available Desde hace más de dos décadas y como ya se hace costumbre según se ha comprobado en muchos casos, el diseño de interiores por lo general se emplea en las obras para el turismo y en alguna otra de gran interés por su importancia o significación determinada. Esto no quiere decir que las obras de la vivienda no deban de ser diseñadas en sus espacios interiores y mucho menos que sean obras de baja importancia. En muchos de nuestros hoteles de Varadero podemos encontrar elementos de diseño interior que vienen de la arquitectura vernácula, sobre todo de la vivienda de madera y tejas, del pasado siglo (casi extinguida en este polo turístico, así como nuevos elementos de modernidad y nuevos materiales, los cuales pueden ser utilizados en los proyectos de viviendas que hoy se proyectan y se construyen en Cuba. El aspecto económico es uno de los que más elimina esta etapa de diseño dentro de los proyectos, sin embargo, en ocasiones se hacen los proyectos de arquitectura y el diseño de interiores queda solucionado con algún comentario donde se refiere a colores y algunas terminaciones solamente, pero esto no incluye muebles, falsos techos, texturas ni otros elementos decorativos que componen el hábitat de las personas. En el trabajo se describirá el diseño de interiores y las características más importantes de dos ejemplos de instalaciones turísticas seleccionadas. En ellos se podrá observar con claridad nuestra identidad cultural en el interiorismo, el cual nos servirá como apoyo para la realización de proyectos de viviendas.

  20. High-Energy Ions Emitted from Ar Clusters Irradiated by Intense Femtosecond Laser Pulses

    Institute of Scientific and Technical Information of China (English)

    LI Zhong; LEI An-Le; NI Guo-Quan; XU Zhi-Zhan

    2000-01-01

    We have experimentally studied the energy spectra of Ar ions emitted from Ar clusters irradiated by intense femtosecond laser pulses. The Ar clusters were produced in the adiabatic expansion of Ar gas into vacuum at high backing pressures. The laser peak intensity was about 2×106 W/cm2 with a pulse duration of 45 fs. The maximum and the average energies of Ar ions are 0.2 MeV and 15kev at a backing pressure of 2. S MPa, respectively. They are almost independent of the backing pressures in the range of 0.6 to 4.5 MPa.

  1. Audit, Control and Monitoring Design Patterns (ACMDP for Autonomous Robust Systems (ARS

    Directory of Open Access Journals (Sweden)

    C. Trad

    2008-11-01

    Full Text Available This paper proposes the Audit, Control and Monitoring Design Patterns (ACMDP for building Autonomous and Robust Systems (ARS such as Mobile Robot Systems (MRS. These patterns are also applicable to other Mission Critical and Complex Systems (MCCS. This paper presents a proposal which will help ARS project managers and engineers design, build and estimate the probability that an ARS will succeed or fail. Furthermore, this proposal offers the possibility to ARS problems with the help of audit, monitoring and controlling components, adjust the project management pathways, and define the problem sources as well as their possible solutions, in order to deliver an ARS or an MRS.

  2. Simulation of Extreme Arctic Cyclones in IPCC AR5 Experiments

    Science.gov (United States)

    2014-05-15

    emerge in the interior Arctic Ocean, especially over regions where sea ice loss exposes open water. However, this change is not effected by the...htm> Scientific American ("Warming Arctic spurs cyclones and sea ice loss "), < http://www.scientificamerican.com/article/warming- arctic -spurs...cyclones-and-sea- ice - loss /?&WT.mc_id=SA_DD_20140220> Nelson Institute of Environmental Studies at University of Wisconsin feature ("More extreme Arctic

  3. Identification of a new androgen receptor (AR) co-regulator BUD31 and related peptides to suppress wild-type and mutated AR-mediated prostate cancer growth via peptide screening and X-ray structure analysis.

    Science.gov (United States)

    Hsu, Cheng-Lung; Liu, Jai-Shin; Wu, Po-Long; Guan, Hong-Hsiang; Chen, Yuh-Ling; Lin, An-Chi; Ting, Huei-Ju; Pang, See-Tong; Yeh, Shauh-Der; Ma, Wen-Lung; Chen, Chung-Jung; Wu, Wen-Guey; Chang, Chawnshang

    2014-12-01

    Treatment with individual anti-androgens is associated with the development of hot-spot mutations in the androgen receptor (AR). Here, we found that anti-androgens-mt-ARs have similar binary structure to the 5α-dihydrotestosterone-wt-AR. Phage display revealed that these ARs bound to similar peptides, including BUD31, containing an Fxx(F/H/L/W/Y)Y motif cluster with Tyr in the +5 position. Structural analyses of the AR-LBD-BUD31 complex revealed formation of an extra hydrogen bond between the Tyr+5 residue of the peptide and the AR. Functional studies showed that BUD31-related peptides suppressed AR transactivation, interrupted AR N-C interaction, and suppressed AR-mediated cell growth. Combination of peptide screening and X-ray structure analysis may serve as a new strategy for developing anti-ARs that simultaneously suppress both wt and mutated AR function.

  4. Estudio del sistema simbiótico AR Pavonis

    Science.gov (United States)

    Quiroga, C.; Brandi, E.; Ferrer, O.; García, L.; Barbá, R.

    Se presenta un estudio espectroscópico y polarimétrico de la binaria eclipsante AR Pavonis a partir de observaciones obtenidas con el telescopio de 2.15 m. del CASLEO (San Juan). El estudio de la naturaleza del sistema se realizó a través del análisis de algunos espectros reunidos entre los años 1990 y 1995 y de datos polarimétricos correspondientes al intervalo 1995 y 1997. El análisis espectroscópico indica que AR Pav está compuesta por una gigante roja M3.7 y una componente caliente compacta, con una temperatura mayor a 90000 K y una luminosidad del orden de 500Lsolar. A lo largo del período orbital, las variaciones observadas en flujo y en velocidades radiales, reflejan que las emisiones permitidas se forman en una región que rodea la componente caliente. El estudio de la polarización lineal de AR Pav indica que además de una componente interestelar, existe una componente intrínseca del sistema que varía temporalmente y con la longitud de onda de la luz polarizada. El distinto comportamiento del grado de polarización y del ángulo de posición observado en fases diferentes, sugiere que distintos mecanismos pueden estar actuando, dependiendo de la región de scattering observado a lo largo de la línea de la visual.

  5. Rotational Spectrum of Ar...PROPARGYL Alcohol Complex

    Science.gov (United States)

    Mani, Devendra; Shahi, Abhishek; Arunan, E.

    2012-06-01

    Pure rotational spectrum for Ar...Propargyl alcohol complex has been observed and fitted. Fitted rotational constants for the complex are : A=4346.17307(90) MHz, B=1617.15317(19)MHz and C= 1245.42065(15) MHz. These rotational constants are very close to the ab-initio rotational constants for the geometry, in which propargyl alcohol exists in gauche conformation and Ar interacts with both, the hydroxyl group and the acetylenic group of propargyl alcohol. Rotational spectrum of deuterated isotopologue (-OD) of the complex further confirms the existence of the above mentioned geometry. In previous studies tunneling frequency corresponding to -OH tunneling motion in propargyl alocohol monomer was determined to be 652.4 GHz and for -OD tunneling motion in mono-deuterated species, it was 213.5 GHz. In Ar...Propargyl alcohol complex also, a-type and c-dipole transitions show tunneling splitting. In the parent complex, for a-type transitions, tunneling splitting was 10 KHz and for c-type transitions (c-dipole of the complex is in the same direction as in propargyl alcohol monomer, and it is antisymmetric with respect to OH tunneling motion in both monomer and the complex), it was 2.59 MHz. In deuterated complex (OD) splitting was not resolvable for a-type transitions while for c-type it reduces to 900 KHz. Search for C-13 isotopologues is in progress. Moreover, propargyl alcohol offers several possibilities for H-bonding and we are planning to study its complexes with water in near future. Results will be presented in the talk. E. Hirota,J. Mol. Spectrosc. 26 (1968) 335-350. J.C. Pearson, B.J. Drouin, J. Mol. Spectrosc. 234 (2005) 149-156.

  6. Production and release rate of (37)Ar from the UT TRIGA Mark-II research reactor.

    Science.gov (United States)

    Johnson, Christine; Biegalski, Steven R; Artnak, Edward J; Moll, Ethan; Haas, Derek A; Lowrey, Justin D; Aalseth, Craig E; Seifert, Allen; Mace, Emily K; Woods, Vincent T; Humble, Paul

    2017-02-01

    Air samples were taken at various locations around The University of Texas at Austin's TRIGA Mark II research reactor and analyzed to determine the concentrations of (37)Ar, (41)Ar, and (133)Xe present. The measured ratio of (37)Ar/(41)Ar and historical records of (41)Ar releases were then utilized to estimate an annual average release rate of (37)Ar from the reactor facility. Using the calculated release rate, atmospheric transport modeling was performed in order to determine the potential impact of research reactor operations on nearby treaty verification activities. Results suggest that small research reactors (∼1 MWt) do not release (37)Ar in concentrations measurable by currently proposed OSI detection equipment.

  7. Ulcera cutanea provocada por hongos del genero Fusarium

    Directory of Open Access Journals (Sweden)

    Negroni Ricardo

    1997-01-01

    Full Text Available Se presenta el caso de un paciente oriundo y procedente del Paraguay, de 40 años de edad, portador de una ulceración crónica en cara externa del pie izquierdo, de 2 meses de evolución, debida a una hialohifomicosis por Fusarium oxysporum. Se destacan las características clínicas, métodos de diagnóstico y terapeútica de esta micosis, además de las diferentes etiologías a considerar en el diagnóstico diferencial de una úlcera en personas procedentes del área tropical o subtropical.

  8. Compressões medicares provocadas por mielomas vertebrais

    Directory of Open Access Journals (Sweden)

    Adherbal Tolosa

    1956-06-01

    Full Text Available Os autores apresentam 4 casos de mieloma vertebral, com invasão do espaço epidural, provocando compressão medular ou radículo-medular. Em um caso havia lesões em vários ossos; noutro foi verificada apenas osteólise costal, além da lesão vertebral; nos demais tratava-se, provavelmente, de formas solitárias. A lesão se localizou entre C7 e T9, nos 4 casos. Em nenhum deles se verificou invasão do espaço subdural. Em 3 casos a sintomatologia era representada por paraplegia crural sensitivo-motora; em 1 caso prevaleciam sintomas radiculálgicos. Dos exames complementares destacam-se: presença de proteinuria de Bence-Jones e anormalidade do mielograma só verificadas no caso de mielo-matose generalizada; neste caso foi observada também redução da colesterolemia, hiperuricemia e positividade de algumas provas de função hepática; a eletroforese das proteínas plasmáticas, efetuada no caso 4, revelou diminuição da albumina e discreto aumento das taxas de globulina α1 e α2; o exame do liqüido cefalorraqueano, por punção lombar, revelou sempre a síndrome de compressão medular; o bloqueio do canal raqueano e seu nível foram comprovados por perimielografia, que confirmou os elementos clínicos de localização, sendo, entretanto, sugestiva de tumor intramedular em um caso. O tratamento consistiu em laminectomia, com extirpação do tecido tumoral peridural, seguida de radioterapia em altas doses. Os resultados obtidos foram altamente satisfatórios em 3 casos, porém o paciente com mielo-matose múltipla não se beneficiou, vindo a falecer um ano após a operação.

  9. Dermatoses provocadas por plantas (fitodermatoses Dermatosis due to plants (phytodermatosis

    Directory of Open Access Journals (Sweden)

    Vitor Manoel Silva dos Reis

    2010-08-01

    Full Text Available As dermatoses causadas por plantas são relativamente comuns no nosso meio e podem ocorrer por diversos mecanismos patogênicos. São descritas dermatoses por trauma físico, por ação farmacológica, mediadas por IgE, por irritação, por ação conjunta da luz e por sensibilização. Também são descritas na introdução desta revisão as pseudofitodermatoses causadas por elementos veiculados pelas plantas e, por isso, aparentemente causadas pelas plantas.Dermatosis caused by plants is relatively common and may occur by various pathogenic mechanisms. Dermatitis due to physical trauma, pharmacological action, irritation, sensitization, mediated by IgE and induced by light are described. Pseudophytodermatosis caused by plant-delivered elements is also described in the introduction to this work.

  10. Destruição de falanges provocada por onicofagia

    OpenAIRE

    Dalanora,Amelia; Uyeda,Hirofumi; Empinotti, Julio C.; Roseli T. Ruaro; Clarindo,Marcos V.

    2007-01-01

    É descrito o caso de paciente de 32 anos que relatava o hábito de roer as unhas há mais de 20 anos, apresentando destruição total das falanges distais do primeiro, segundo e terceiro quirodáctilos esquerdos.

  11. Adsorption of Ar on individual carbon nanotubes, graphene, and graphite

    Science.gov (United States)

    Dzyubenko, Boris; Kahn, Joshua; Vilches, Oscar; Cobden, David

    2015-03-01

    We compare and contrast results of adsorption measurements of Ar on single-walled carbon nanotubes, graphene, and graphite. Adsorption isotherms on individual suspended nanotubes were obtained using both the mechanical resonance frequency shift (sensitive to mass adsorption) and the electrical conductance. Isotherms on graphene mounted on hexagonal boron nitride were obtained using only the conductance. New volumetric adsorption isotherms on bulk exfoliated graphite were also obtained, paying special attention to the very low coverage region (less than 2% of a monolayer). This allowed us to compare the degree of heterogeneity on the three substrate types, the binding energies, and the van der Waals 2D parameters. Research supported by NSF DMR 1206208.

  12. Predication of Crane Condition Parameters Based on SVM and AR

    Science.gov (United States)

    Xiuzhong, Xu; Xiong, Hu; Congxiao, Zhou

    2011-07-01

    Through statistic analysis of vibration signals of motor on the container crane hoisting mechanism in a port, the feature vectors with vibration are obtained. Through data preprocessing and training data, Training models of condition parameters based on support vector machine (SVM) are established. The testing data of condition monitoring parameters can be predicted by the training models. During training the models, the penalty parameter and kernel function of model are optimized by cross validation. In order to analysis the accurate of SVM model, autoregressive model is used to predict the trend of vibration. The research showed the predicted results of model using SVM are better than the results by autoregressive (AR) modeling.

  13. Tissue Characterization on Common Carotid Artery using AR Model

    Science.gov (United States)

    Koya, Yoshiharu; Mizoshiri, Isao

    This study uses one image with a echocardiography and detects arteriosclerosis on the common carotid artery by tissue characterization. The conventional methods are measurement of thickness on the vessel wall or stiffness on the common carotid artery. However, they need frames of several beats and great calculation times. But, we detect the arteriosclerosis with only one image. Our method estimate the grade of arteriosclerosis by AR model parameters fitted to the texture on the lumen-intima wall. Experimental results show the validity of the proposed method.

  14. Energy Levels of Highly Ionized Ar ⅩⅣ

    Institute of Scientific and Technical Information of China (English)

    CHENG Zhang; LI Ping; DENG Xiao-Hui

    2006-01-01

    With the Breit interaction and quantum electrodynamics corrections considered, relativistic configuration interaction calculations have been carried out in the extended optimal level scheme using multi-configuration Dirac-Fock wave functions on the 204 energy levels and electric dipole transitions of Ar ⅩⅣ. The results of electric dipole transitions are in good agreement with experiments. Among the energy levels calculated, the lowest 125 levels are in good agreement with available experimental and other theoretical ones, and the other 79 levels are new ones obtained by the present work. This wide range of atomic energy levels is useful in astrophysics and plasma physics.

  15. The readout system for the ArTeMis camera

    Science.gov (United States)

    Doumayrou, E.; Lortholary, M.; Dumaye, L.; Hamon, G.

    2014-07-01

    During ArTeMiS observations at the APEX telescope (Chajnantor, Chile), 5760 bolometric pixels from 20 arrays at 300mK, corresponding to 3 submillimeter focal planes at 450μm, 350μm and 200μm, have to be read out simultaneously at 40Hz. The read out system, made of electronics and software, is the full chain from the cryostat to the telescope. The readout electronics consists of cryogenic buffers at 4K (NABU), based on CMOS technology, and of warm electronic acquisition systems called BOLERO. The bolometric signal given by each pixel has to be amplified, sampled, converted, time stamped and formatted in data packets by the BOLERO electronics. The time stamping is obtained by the decoding of an IRIG-B signal given by APEX and is key to ensure the synchronization of the data with the telescope. Specifically developed for ArTeMiS, BOLERO is an assembly of analogue and digital FPGA boards connected directly on the top of the cryostat. Two detectors arrays (18*16 pixels), one NABU and one BOLERO interconnected by ribbon cables constitute the unit of the electronic architecture of ArTeMiS. In total, the 20 detectors for the tree focal planes are read by 10 BOLEROs. The software is working on a Linux operating system, it runs on 2 back-end computers (called BEAR) which are small and robust PCs with solid state disks. They gather the 10 BOLEROs data fluxes, and reconstruct the focal planes images. When the telescope scans the sky, the acquisitions are triggered thanks to a specific network protocol. This interface with APEX enables to synchronize the acquisition with the observations on sky: the time stamped data packets are sent during the scans to the APEX software that builds the observation FITS files. A graphical user interface enables the setting of the camera and the real time display of the focal plane images, which is essential in laboratory and commissioning phases. The software is a set of C++, Labview and Python, the qualities of which are respectively used

  16. X-ray calculations for a NLTE Ar plasma

    Institute of Scientific and Technical Information of China (English)

    WU Ze-qing; PANG Jin-qiao; HAN Guo-xing

    2004-01-01

    A model is developed to calculate emission spectrum of non-local thermodynamic equilibrium(NLTE) plasmas. The Collisional-Radiative model is adopted for non-LTE population calculations. Configuration-averaged rate coefficients that needed in the rate equations are obtained based on the first order perturbation theory. The Hatree-Fock-Slater self-consistent-field method is used to calculate electron wave functions. The present model is applied to the calculation of emissivity from a Ar plasma. The features of the spectra are in good agreement with those calculated by other theoretical models, but the data of the integrated emissivity differ by a factor 2~8.

  17. AR-based Algorithms for Short Term Load Forecast

    Directory of Open Access Journals (Sweden)

    Zuhairi Baharudin

    2014-02-01

    Full Text Available Short-term load forecast plays an important role in planning and operation of power systems. The accuracy of the forecast value is necessary for economically efficient operation and effective control of the plant. This study describes the methods of Autoregressive (AR Burg’s and Modified Covariance (MCOV in solving the short term load forecast. Both algorithms are tested with power load data from Malaysian grid and New South Wales, Australia. The forecast accuracy is assessed in terms of their errors. For the comparison the algorithms are tested and benchmark with the previous successful proposed methods.

  18. The Solar Heavy Element Abundances: I. Constraints from Stellar Interiors

    CERN Document Server

    Delahaye, F; Delahaye, Franck; Pinsonneault, Marc

    2005-01-01

    The latest solar atmosphere models include non-LTE corrections and 3D hydrodynamic convection simulations. These models predict a significant reduction in the solar metal abundance, which leads to a serious conflict between helioseismic data and the predictions of solar interiors models. We demonstrate that the helioseismic constraints on the surface convection zone depth and helium abundance combined with stellar interiors models can be used to define the goodness of fit for a given chemical composition. After a detailed examination of the errors in the theoretical models we conclude that models constructed with the older solar abundances are consistent (<2 \\sigma) with the seismic data. Models constructed with the proposed new low abundance scale are strongly disfavored, disagreeing at the 15 \\sigma level. We then use the sensitivity of the seismic properties to abundance changes to invert the problem and infer a seismic solar heavy element abundance mix with two components: meteoritic abundances, and th...

  19. Preliminary Results on Lunar Interior Properties from the GRAIL Mission

    Science.gov (United States)

    Williams, James G.; Konopliv, Alexander S.; Asmar, Sami W.; Lemoine, H. Jay; Melosh, H. Jay; Neumann, Gregory A.; Phillips, Roger J.; Smith, David E.; Solomon, Sean C.; Watkins, Michael M.; Wieczorek, Mark A.; Zuber, Maria T.; Andrews-Hanna, Jeffrey C.; Head, James W.; Kiefer, Walter S.; Matsuyama, Isamu; McGovern, Patrick J.; Nimmo, Francis; Weber, Renee C.; Boggs, D. H.; Goossens, Sander J.; Kruizinga, Gerhard L.; Mazarico, Erwan; Park, Ryan S.; Yuan, Dah-Ning

    2013-01-01

    The Gravity Recovery and Interior Laboratory (GRAIL) mission has provided lunar gravity with unprecedented accuracy and resolution. GRAIL has produced a high-resolution map of the lunar gravity field while also determining tidal response. We present the latest gravity field solution and its preliminary implications for the Moon's interior structure, exploring properties such as the mean density, moment of inertia of the solid Moon, and tidal potential Love number k2. Lunar structure includes a thin crust, a deep mantle, a fluid core, and a suspected solid inner core. An accurate Love number mainly improves knowledge of the fluid core and deep mantle. In the future GRAIL will search for evidence of tidal dissipation and a solid inner core.

  20. Combining interior and exterior characteristics for remote sensing image denoising

    Science.gov (United States)

    Peng, Ni; Sun, Shujin; Wang, Runsheng; Zhong, Ping

    2016-04-01

    Remote sensing image denoising faces many challenges since a remote sensing image usually covers a wide area and thus contains complex contents. Using the patch-based statistical characteristics is a flexible method to improve the denoising performance. There are usually two kinds of statistical characteristics available: interior and exterior characteristics. Different statistical characteristics have their own strengths to restore specific image contents. Combining different statistical characteristics to use their strengths together may have the potential to improve denoising results. This work proposes a method combining statistical characteristics to adaptively select statistical characteristics for different image contents. The proposed approach is implemented through a new characteristics selection criterion learned over training data. Moreover, with the proposed combination method, this work develops a denoising algorithm for remote sensing images. Experimental results show that our method can make full use of the advantages of interior and exterior characteristics for different image contents and thus improve the denoising performance.

  1. Propeller aircraft interior noise model utilization study and validation

    Science.gov (United States)

    Pope, L. D.

    1984-01-01

    Utilization and validation of a computer program designed for aircraft interior noise prediction is considered. The program, entitled PAIN (an acronym for Propeller Aircraft Interior Noise), permits (in theory) predictions of sound levels inside propeller driven aircraft arising from sidewall transmission. The objective of the work reported was to determine the practicality of making predictions for various airplanes and the extent of the program's capabilities. The ultimate purpose was to discern the quality of predictions for tonal levels inside an aircraft occurring at the propeller blade passage frequency and its harmonics. The effort involved three tasks: (1) program validation through comparisons of predictions with scale-model test results; (2) development of utilization schemes for large (full scale) fuselages; and (3) validation through comparisons of predictions with measurements taken in flight tests on a turboprop aircraft. Findings should enable future users of the program to efficiently undertake and correctly interpret predictions.

  2. Imaging the Earth's Interior: the Angular Distribution of Terrestrial Neutrinos

    CERN Document Server

    Fields, Brian D

    2004-01-01

    Decays of radionuclides throughout the Earth's interior produce geothermal heat, but also are a source of antineutrinos. The (angle-integrated) geoneutrino flux places an integral constraint on the terrestrial radionuclide distribution. In this paper, we calculate the angular distribution of geoneutrinos, which opens a window on the differential radionuclide distribution. We develop the general formalism for the neutrino angular distribution, and we present the inverse transformation which recovers the terrestrial radioisotope distribution given a measurement of the neutrino angular distribution. Thus, geoneutrinos not only allow a means to image the Earth's interior, but offering a direct measure of the radioactive Earth, both (1) revealing the Earth's inner structure as probed by radionuclides, and (2) allowing for a complete determination of the radioactive heat generation as a function of radius. We present the geoneutrino angular distribution for the favored Earth model which has been used to calculate g...

  3. High Resolution 3D Radar Imaging of Comet Interiors

    Science.gov (United States)

    Asphaug, E. I.; Gim, Y.; Belton, M.; Brophy, J.; Weissman, P. R.; Heggy, E.

    2012-12-01

    Knowing the interiors of comets and other primitive bodies is fundamental to our understanding of how planets formed. We have developed a Discovery-class mission formulation, Comet Radar Explorer (CORE), based on the use of previously flown planetary radar sounding techniques, with the goal of obtaining high resolution 3D images of the interior of a small primitive body. We focus on the Jupiter-Family Comets (JFCs) as these are among the most primitive bodies reachable by spacecraft. Scattered in from far beyond Neptune, they are ultimate targets of a cryogenic sample return mission according to the Decadal Survey. Other suitable targets include primitive NEOs, Main Belt Comets, and Jupiter Trojans. The approach is optimal for small icy bodies ~3-20 km diameter with spin periods faster than about 12 hours, since (a) navigation is relatively easy, (b) radar penetration is global for decameter wavelengths, and (c) repeated overlapping ground tracks are obtained. The science mission can be as short as ~1 month for a fast-rotating JFC. Bodies smaller than ~1 km can be globally imaged, but the navigation solutions are less accurate and the relative resolution is coarse. Larger comets are more interesting, but radar signal is unlikely to be reflected from depths greater than ~10 km. So, JFCs are excellent targets for a variety of reasons. We furthermore focus on the use of Solar Electric Propulsion (SEP) to rendezvous shortly after the comet's perihelion. This approach leaves us with ample power for science operations under dormant conditions beyond ~2-3 AU. This leads to a natural mission approach of distant observation, followed by closer inspection, terminated by a dedicated radar mapping orbit. Radar reflections are obtained from a polar orbit about the icy nucleus, which spins underneath. Echoes are obtained from a sounder operating at dual frequencies 5 and 15 MHz, with 1 and 10 MHz bandwidths respectively. The dense network of echoes is used to obtain global 3D

  4. Occurrence of hepatic lesions caused by Strongylus spp larvae diagnosed in post mortem exam in horses slaughtered in Apucarana, state of Paraná / Ocorrência de lesões hepáticas provocadas por larvas de Strongylus spp diagnosticadas no exame post mortem de eqüídeos abatidos em Apucarana, Paraná

    Directory of Open Access Journals (Sweden)

    Werner Okano

    2008-08-01

    Full Text Available The objective of this study was to determinate the occurrence of hepatic lesions caused by migratory large Strongyle larvaes in horses slaughtered in city of Apucarana in state of Paraná. The lesions were diagnostic in post mortem exam by macro and microscopic analysis. From April 2003 to April 2004, 38,363 animals, coming from different regions of Brazil, were examined. The occurrence of granulomas in liver was observed in 14,443 (37.64%, with adhesions and spot in 6,645 (17,32%, and 17,275 (45.03% without macroscopic lesions. Macroscopic analysis revealed the presence of livers with calcified nodules, the presence of whitish spots, and adhesions in the format of “lines” over the hepatic capsule. No larvae were found in the livers. Hepatic fragments were histologically processed and revealed, by optical microscopy, inflammatory cells with predominance of eosinophils around the granulomas with a moderate amount of macrophages and the presence of fibroblasts.O objetivo deste estudo foi determinar a ocorrência de lesões hepáticas provocadas por larvas de estrongilídeos em eqüídeos abatidos em matadouro-frigorífico no Paraná, diagnosticado durante o exame post mortem e estudo macro e microscópico destas lesões. Foram pesquisados nos meses de abril de 2003 a abril de 2004, 38.363 animais, procedentes de diversos estados do país. A ocorrência de granulomas no fígado foi observada em 14.443 (37,64%, com aderências e manchas em 6.645 (17,32%, e sem lesões macroscópicas em 17.275 (45.03%. Macroscopicamente, foram verificados fígados com nódulos calcificados, presença de manchas esbranquiçadas, aderências e em forma de “linhas” sob a cápsula hepática. Não foram encontradas as larvas nos fígados. Histologicamente, os fragmentos hepáticos revelaram na microscopia óptica, células inflamatórias com o predomínio de eosinófilos ao redor dos granulomas, com moderada quantidade de macrófagos e presença de fibroblastos.

  5. Intoxicações provocadas por agrotóxicos de uso agrícola na microrregião de Dourados, Mato Grosso do Sul, Brasil, no período de 1992 a 2002 Pesticide poisoning in Dourados, Mato Grosso do Sul State, Brazil, 1992/2002

    Directory of Open Access Journals (Sweden)

    Dario Xavier Pires

    2005-06-01

    Full Text Available As notificações de intoxicações e tentativas de suicídio provocadas por agrotóxicos na microrregião de Dourados, Mato Grosso do Sul, entre 1992 e 2002, foram avaliadas baseando-se nos registros do Centro Integrado de Vigilância Toxicológica da Secretaria de Saúde do estado. Foram notificadas 475 ocorrências no período, sendo 261 intoxicações (acidental ou ocupacional, 203 tentativas de suicídio e 11 eventos de causa indeterminada. O Município de Dourados apresentou a maior prevalência de intoxicações, por 100 mil habitantes, considerando a população rural, e Fátima do Sul a segunda maior prevalência de suicídios na microrregião. Correlações significativas foram encontradas entre intoxicação e tentativa de suicídio (r = 0,60; p Reports of poisoning and suicide attempts involving pesticides in the micro region of Dourados, Mato Grosso do Sul State, Brazil, from 1992 to 2002, were evaluated, using data from the Integrated Center for Toxicological Surveillance under the State Health Department. A total of 475 reports were made during the period, of which 261 were accidental or occupational poisonings, 203 suicide attempts, and 11 undetermined. Dourados county had the highest prevalence of pesticide poisoning and suicide attempts per 100,000 inhabitants, considering the rural population, and Fátima do Sul the second highest prevalence of suicides within the micro region. Significant correlations were found between poisoning and suicide (r = 0.60; p < 0.05 and between poisoning and temporary crop area as a percentage of the county's total area (r = 0.68; p < 0.05. Poisoning occurred predominantly in men (87.0%, but the percentage of suicide attempts by men and women were similar (53 and 47.0%, respectively. Poisonings occurred mostly from October to March and the organophosphate insecticides monocrotophos and methamidophos were the main pesticides involved.

  6. Sequestration of noble gases in giant planet interiors

    OpenAIRE

    Wilson, Hugh F.; Militzer, Burkhard

    2010-01-01

    The Galileo probe showed that Jupiter's atmosphere is severely depleted in neon compared to protosolar values. We show, via ab initio simulations of the partitioning of neon between hydrogen and helium phases, that the observed depletion can be explained by the sequestration of neon into helium-rich droplets within the postulated hydrogen-helium immiscibility layer of the planet's interior. We also demonstrate that this mechanism will not affect argon, explaining the observed lack of depletio...

  7. A post-Galileo view of Io's interior

    Science.gov (United States)

    Keszthelyi, L.; Jaeger, W.L.; Turtle, E.P.; Milazzo, M.; Radebaugh, J.

    2004-01-01

    We present a self-consistent model for the interior of Io, taking the recent Galileo data into account. In this model, Io has a completely molten core, substantially molten mantle, and a very cold lithosphere. Heat from magmatic activity can mobilize volatile compounds such as SO2 in the lithosphere, and the movement of such cryogenic fluids may be important in the formation of surface features including sapping scarps and paterae. ?? Published by Elsevier Inc.

  8. Development of a Two-Dimensional Implicit Interior Ballistics Code

    Science.gov (United States)

    1980-01-01

    the universal gas constant, W is the gas molecular weight, u m and n is the covolume factor, which is composition dependent . Following Gough (Ref...c is dependent on the gas composition but not temperature. v The static enthalpy is then h = p e + p The specific heat at constant pressure is...Gun Interior Ballistics Transient Combustion Time- dependent Adaptive Grid 20, ABST’RACT (Cazrt&au:e _. .. ._._ lliO 11 ~ llltld ldenllly by block

  9. Habitable Planets: Interior Dynamics and Long-Term Evolution

    Science.gov (United States)

    Tackley, Paul J.; Ammann, Michael M.; Brodholt, John P.; Dobson, David P.; Valencia, Diana

    2014-04-01

    Here, the state of our knowledge regarding the interior dynamics and evolution of habitable terrestrial planets including Earth and super-Earths is reviewed, and illustrated using state-of-the-art numerical models. Convection of the rocky mantle is the key process that drives the evolution of the interior: it causes plate tectonics, controls heat loss from the metallic core (which generates the magnetic field) and drives long-term volatile cycling between the atmosphere/ocean and interior. Geoscientists have been studying the dynamics and evolution of Earth's interior since the discovery of plate tectonics in the late 1960s and on many topics our understanding is very good, yet many first-order questions remain. It is commonly thought that plate tectonics is necessary for planetary habitability because of its role in long-term volatile cycles that regulate the surface environment. Plate tectonics is the surface manifestation of convection in the 2900-km deep rocky mantle, yet exactly how plate tectonics arises is still quite uncertain; other terrestrial planets like Venus and Mars instead have a stagnant lithosphere- essentially a single plate covering the entire planet. Nevertheless, simple scalings as well as more complex models indicate that plate tectonics should be easier on larger planets (super-Earths), other things being equal. The dynamics of terrestrial planets, both their surface tectonics and deep mantle dynamics, change over billions of years as a planet cools. Partial melting is a key process influencing solid planet evolution. Due to the very high pressure inside super-Earths' mantles the viscosity would normally be expected to be very high, as is also indicated by our density function theory (DFT) calculations. Feedback between internal heating, temperature and viscosity leads to a superadiabatic temperature profile and self-regulation of the mantle viscosity such that sluggish convection still occurs.

  10. Cogging torque reduction for interior permanent magnet synchronous motors

    OpenAIRE

    Tost Candel, Miquel

    2015-01-01

    Interior permanent magnet synchronous machines show a good range of behaviours, which make these kinds of machines good candidates for an electromechanical energy conversion. However, in order to improve their accuracy in their torque responses, the cogging torque and torque ripple phenomena should be mitigated to obtain better performance of the machine. In order to reduce the cogging torque and torque ripple, control techniques as well as geometric parameters of the machine have to be im...

  11. Introduction to the evolution and development of interior design

    Institute of Scientific and Technical Information of China (English)

    米耘锐

    2014-01-01

    With the continuous development of society, modern interior art design bring us is not only a comfortable environment, is more of a new life concept, adjusting to the fast pace of modern people life; The forefront of art is not independent, but correspond to people’s thought, people thought progress is not only the development orientation of art, is also the forefront of art.

  12. The megalithic tombs of southern Beira Interior, Portugal: recent contributions.

    OpenAIRE

    Cardoso, João Luís

    2008-01-01

    In this study, we present the main results obtained during the archaeological survey of a vast area south of Beira Interior, in the region of International river Tagus, followed by the excavation of the more representative and best preserved funerary megalithic monuments. In this way, it was possible to identify several types of monuments and to relate these with the artefact findings, and to develop a model to explain the architectonic succession of funerary megalithic monuments in the regio...

  13. Null controllability for linear parabolic cascade systems with interior degeneracy

    Directory of Open Access Journals (Sweden)

    Idriss Boutaayamou

    2016-11-01

    Full Text Available We study the null controllability problem for linear degenerate parabolic systems with one control force through Carleman estimates for the associated adjoint problem. The novelty of this article is that for the first time it is considered a problem with an interior degeneracy and a control set that only requires to contain an interval lying on one side of the degeneracy points. The obtained result improves and complements a number of earlier works. As a consequence, observability inequalities are established.

  14. Exact interior solutions in 2 + 1-dimensional spacetime

    Energy Technology Data Exchange (ETDEWEB)

    Rahaman, Farook; Bhar, Piyali [Jadavpur University, Department of Mathematics, Kolkata, West Bengal (India); Biswas, Ritabrata [Indian Institute of Engineering Sceince and Technology Shibpur, Howrah, West Bengal (India); Usmani, A.A. [Aligarh Muslim University, Department of Physics, Aligarh, Uttar Pradesh (India)

    2014-04-15

    We provide a new class of exact solutions for the interior in 2 + 1-dimensional spacetime. The solutions obtained for the perfect fluid model both with and without cosmological constant (Λ) are found to be regular and singularity free. It assumes very simple analytical forms that help us to study the various physical properties of the configuration. Solutions without Λ are found to be physically acceptable. (orig.)

  15. Jauno vecāku apmierinātības ar attiecībām saistība ar vecāku stresu.

    OpenAIRE

    Strangate, Ilze

    2011-01-01

    Bakalaura darba mērķis ir izpētīt apmierinātības ar pāra attiecībām saistību ar vecāku stresu, un atbildēt uz jautājumiem - Vai pastāv saistība starp jauno vecāku apmierinātību ar attiecībām un vecāku stresu? Vai pastāv apmierinātības ar attiecībām un vecāku stresa saistības atšķirības jaunajām mātēm un tēviem? Vai atšķiras apmierinātība ar attiecībām un vecāku stress jaunajiem vecākiem ar dažādu kopdzīves veidu? Vai kopdzīves ilgums ir saistīts ar apmierinātību ar attiecībām un vecāku stresu...

  16. Time and Spectrally Resolved Fluorescence of Cl*2 and ArCl* in Cl2 Doped Ar Under State Selective Pulsed Photoexcitation with Synchrotron Radiation

    Science.gov (United States)

    Möller, T.; Jordan, B.; Zimmerer, G.; Haaks, D.; Le Calvé, J.; Castex, M.-C.

    1986-03-01

    Synchrotron Radiation is used to selectively excite chlorine and Cl2 doped argon in the VUV region. Stationary fluorescence and excitation spectra of the 11Σ{/u +}, 21Σ{/u +} and 23Π g Cl{2/*} states and of the ArCl*( B-X) transition are obtained. The excitation threshold of ArCl*( B) in Ar/Cl2 system is found to be 1,285±5 Å and that of ArCl( C) at ˜1,260 Å. The formation of ArCl* and Cl*2(23Π g) is discussed in terms of recent potential curves data. A detailed time resolved study is reported which allows us to determine precisely the radiative lifetime of ArCl*( B) state (5.2 ns) and numerous kinetic parameters of this system, to estimate the C state energy and to discuss the relaxation and mixing process of the ArCl*( B) and ( C) states. A two ladder multilevel kinetic model is described which accounts for the experimental results and shows the difficulty of studying this particular ArCl* system as compared to the closely related XeCl* and KrCl* ones.

  17. Eruption of the Continental Flood Basalts at ~259 Ma in the Emeishan Large Igneous Province, SW China: Evidence from Laser Microprobe 40Ar/39Ar Dating

    Institute of Scientific and Technical Information of China (English)

    HOU Zengqian; CHEN Wen; LU Jiren

    2006-01-01

    A suite of continental flood basalts sampled over a vast exposure and stratigraphic thickness in the Emeishan large igneous province (LLP), SW China was investigated for laser microprobe 40Ar/39Ar dating. There are two 40Ar/39Ar age groups for these basalts, corresponding to 259-246 Ma and 177-137 Ma, respectively. A well-defined isochron gives an eruption age of huge quantities of mafic magmas at 258.9±3.4 Ma, which is identical to previous dating and paleontological data. Much younger 40Ar/39Ar ages for some basalts with low-greenschist metamorphic facies probably recorded a late thermo-tectonic event caused by collision between the Yangtze and Qiangtang continental blocks during the Mesozoic, which resulted in the reset of argon isotope system. The 40Ar/39Ar age data, we present here, combined with previous dating and paleontological data, suggest relatively short duration (about 3 Ma) of mafic volcanism, which have important implication on mantle plume genesis of the Emeishan continental flood basalts in the LIP.

  18. Sedimentary cycles and volcanic ash beds in the Lower Pliocene lacustrine succession of Ptolemais (NW Greece): discrepancy between 40 Ar/39 Ar and astronomical ages

    NARCIS (Netherlands)

    Steenbrink, J.; Vugt, N. van; Hilgen, F.J.; Wijbrans, J.R.; Meulenkamp, J.E.

    2001-01-01

    A high-resolution cyclostratigraphy for the rhythmically bedded lignite-marl sequences of the Lower Pliocene Ptole-mais Formation is combined with 40 Ar= 39 Ar dating results of intercalated volcanic ash beds. Detailed field reconnaissance in three open-pit lignite mines reveals three end-member sed

  19. Concepts for particle foam based ultralight automotive interior parts

    Science.gov (United States)

    Trassl, C.; Altstädt, V.; Schreier, P.

    2014-05-01

    The described concepts for modern automotive interior parts are based on polypropylene (PP). These interior parts have a core of expanded polypropylene particle foam (EPP) and a decorative layer of a thermoplastic polyolefin elastomer (TPO) film. Compared with conventional solutions in the field of automotive interior parts, they are characterised mainly due to the avoidance of material mixtures so that they have better recycling properties and are significantly lighter in spite of comparable crash behaviour. Because of the optimized combination of positive component properties (specifically, the rigidity of the carrier, lower density combined with the better crash behaviour of the EPP foam core and good haptic and optical properties of the film), the multi-material system compensates the disadvantages of the individual components. In addition, the integration of all process steps into a new single-step manufacturing process combined with the elimination of an additional surface treatment means that the new ultra-light concept should lead to a significant reduction in the costs and cycle time.

  20. Propeller aircraft interior noise model: User's manual for computer program

    Science.gov (United States)

    Wilby, E. G.; Pope, L. D.

    1985-01-01

    A computer program entitled PAIN (Propeller Aircraft Interior Noise) has been developed to permit calculation of the sound levels in the cabin of a propeller-driven airplane. The fuselage is modeled as a cylinder with a structurally integral floor, the cabin sidewall and floor being stiffened by ring frames, stringers and floor beams of arbitrary configurations. The cabin interior is covered with acoustic treatment and trim. The propeller noise consists of a series of tones at harmonics of the blade passage frequency. Input data required by the program include the mechanical and acoustical properties of the fuselage structure and sidewall trim. Also, the precise propeller noise signature must be defined on a grid that lies in the fuselage skin. The propeller data are generated with a propeller noise prediction program such as the NASA Langley ANOPP program. The program PAIN permits the calculation of the space-average interior sound levels for the first ten harmonics of a propeller rotating alongside the fuselage. User instructions for PAIN are given in the report. Development of the analytical model is presented in NASA CR 3813.

  1. Ohmic Dissipation in the Interiors of Hot Jupiters

    CERN Document Server

    Huang, Xu

    2012-01-01

    We present models of ohmic heating in the interiors of hot jupiters in which we decouple the interior and the wind zone by replacing the wind zone with a boundary temperature Tiso and magnetic field Bphi0. Ohmic heating influences the contraction of gas giants in two ways: by direct heating within the convection zone, and by heating outside the convection zone which increases the effective insulation of the interior. We calculate these effects, and show that internal ohmic heating is only able to slow the contraction rate of a cooling gas giant once the planet reaches a critical value of internal entropy. We determine the age of the gas giant when ohmic heating becomes important as a function of mass, Tiso and induced Bphi0. With this survey of parameter space complete, we then adopt the wind zone scalings of Menou (2012) and calculate the expected evolution of gas giants with different levels of irradiation. We find that,with this prescription of magnetic drag, it is difficult to inflate massive planets or t...

  2. Atmosphere-interior Exchange on Hot, Rocky Exoplanets

    Science.gov (United States)

    Kite, Edwin S.; Fegley, Bruce, Jr.; Schaefer, Laura; Gaidos, Eric

    2016-09-01

    We provide estimates of atmospheric pressure and surface composition on short-period, rocky exoplanets with dayside magma pools and silicate-vapor atmospheres. Atmospheric pressure tends toward vapor-pressure equilibrium with surface magma, and magma-surface composition is set by the competing effects of fractional vaporization and surface-interior exchange. We use basic models to show how surface-interior exchange is controlled by the planet’s temperature, mass, and initial composition. We assume that mantle rock undergoes bulk melting to form the magma pool, and that winds flow radially away from the substellar point. With these assumptions, we find that: (1) atmosphere-interior exchange is fast when the planet’s bulk-silicate FeO concentration is low, and slow when the planet’s bulk-silicate FeO concentration is high; (2) magma pools are compositionally well mixed for substellar temperatures ≲2400 K, but compositionally variegated and rapidly variable for substellar temperatures ≳2400 K; (3) currents within the magma pool tend to cool the top of the solid mantle (“tectonic refrigeration”) (4) contrary to earlier work, many magma planets have time-variable surface compositions.

  3. CALCULATION OF INDUCTANCE OF THE INTERIOR PERMANENT MAGNET SYNCHRONOUS MOTOR

    Directory of Open Access Journals (Sweden)

    Phyong Le Ngo

    2017-01-01

    Full Text Available Interior permanent magnet synchronous motor (IPMSM refers to salient-pole synchronous motors, characterized by inequality of inductances of longitudinal (d and transverse (q axes. Electromagnetic torque of IPMSM consists of two components: active torque and reactive torque; the latter depends on inductances of d and q axes. An analytical method to calculate own inductances and mutual inductances of a three-phase IPMSM is presented. Distributed windings of the stator are substituted by equivalent sine distributed windings. An interior permanent magnets rotor is substituted by an equivalent salient-pole rotor. Sections of a magnetic circuit comprising interior permanent magnets, air barriers and steel bridges are substituted by equivalent air-gap. The expressions of the magnetic induction created by current of the stator windings at each point of the air gap as well as of magnetic flux linkage of the stator windings have been obtained. The equations of the self-inductances of phases A, B, C, and of inductance of mutual induction are determined from magnetic flux linkage. The inductance of the d and q axes have been obtained as a result of transformation of the axes abc–dq. The results obtained with the use of the proposed analytical method and the finite element method are presented in the form of a graph; the calculations that have been obtained by these two methods were compared. 

  4. Re-measurement of $^{32}$Ar to test the IMME

    CERN Multimedia

    The Isobaric Multiplet Mass Equation (IMME) has been subject to extensive studies in the low-mass region. Especially at the A = 32 quintet, the predicted quadratic form could not be confirmed, possible explanations being the insufficient accuracy of input parameters or higher-order interactions within the nucleon. For this quintet, the uncertainty on the mass-excess values of four of the five T = 2 multiplet members is extremely low: 0.6 keV for $^{32}$Cl, 0.3 keV for $^{32}$S, 0.2 keV for $^{32}$P, and 0.7 keV for $^{32}$Si. In the case of $^{32}$Ar, however, the uncertainty is as large as 1.8 keV. State-of-the-art high-precision Penning-trap mass spectrometry makes it possible to decrease this uncertainty. We propose to remeasure the mass of $^{32}$Ar at the Penning-trap mass spectrometer ISOLTRAP thus decreasing the uncertainty by a factor of 3-5. The proposed measurement is part of an experimental collaboration with JYFLTRAP, where the remaining masses of the T = 2 isospin quintet at A = 32 will be remeas...

  5. archAR: an archaeological augmented reality experience

    Science.gov (United States)

    Wiley, Bridgette; Schulze, Jürgen P.

    2015-03-01

    We present an application for Android phones or tablets called "archAR" that uses augmented reality as an alternative, portable way of viewing archaeological information from UCSD's Levantine Archaeology Laboratory. archAR provides a unique experience of flying through an archaeological dig site in the Levantine area and exploring the artifacts uncovered there. Using a Google Nexus tablet and Qualcomm's Vuforia API, we use an image target as a map and overlay a three-dimensional model of the dig site onto it, augmenting reality such that we are able to interact with the plotted artifacts. The user can physically move the Android device around the image target and see the dig site model from any perspective. The user can also move the device closer to the model in order to "zoom" into the view of a particular section of the model and its associated artifacts. This is especially useful, as the dig site model and the collection of artifacts are very detailed. The artifacts are plotted as points, colored by type. The user can touch the virtual points to trigger a popup information window that contains details of the artifact, such as photographs, material descriptions, and more.

  6. Scientia sexualis versus ars erotica: Foucault, van Gulik, Needham.

    Science.gov (United States)

    Rocha, Leon Antonio

    2011-09-01

    This paper begins with a discussion of the scientia sexualis/ars erotica distinction, which Foucault first advances in History of Sexuality Vol. 1, and which has been employed by many scholars to do a variety of analytical work. Though Foucault has expressed his doubts regarding his conceptualization of the differences between Western and Eastern discourses of desire, he never entirely disowns the distinction. In fact, Foucault remains convinced that China must have an ars erotica. I will explore Foucault's sources of authority. To this end, I introduce the work of famous Dutch sinologist Robert Hans van Gulik, who published the tremendously influential Sexual Life in Ancient China in 1961, and also explore Joseph Needham's view on Chinese sex. I argue that, Foucault, in his fierce polemic against the "Repressive Hypothesis", himself imagined a utopian Other where pleasure and desire were organised differently. I end on a discuss on Orientalism and the project of "Sinography" of comparative literature scholars Haun Saussy, Eric Hayot and others.

  7. An industrial approach to design compelling VR and AR experience

    Science.gov (United States)

    Richir, Simon; Fuchs, Philippe; Lourdeaux, Domitile; Buche, Cédric; Querrec, Ronan

    2013-03-01

    The convergence of technologies currently observed in the field of VR, AR, robotics and consumer electronic reinforces the trend of new applications appearing every day. But when transferring knowledge acquired from research to businesses, research laboratories are often at a loss because of a lack of knowledge of the design and integration processes in creating an industrial scale product. In fact, the innovation approaches that take a good idea from the laboratory to a successful industrial product are often little known to researchers. The objective of this paper is to present the results of the work of several research teams that have finalized a working method for researchers and manufacturers that allow them to design virtual or augmented reality systems and enable their users to enjoy "a compelling VR experience". That approach, called "the I2I method", present 11 phases from "Establishing technological and competitive intelligence and industrial property" to "Improvements" through the "Definition of the Behavioral Interface, Virtual Environment and Behavioral Software Assistance". As a result of the experience gained by various research teams, this design approach benefits from contributions from current VR and AR research. Our objective is to validate and continuously move such multidisciplinary design team methods forward.

  8. Synthesis and characterization of Ar-annealed zinc oxide nanostructures

    Directory of Open Access Journals (Sweden)

    Narayanan Kuthirummal

    2016-09-01

    Full Text Available Nanostructured zinc oxide samples were synthesized through CVD and annealed in argon. The samples were investigated using SEM, TEM, XRD, and UV/VIS/FTIR photoacoustic spectroscopy. The SEM/TEM images show relatively spherical particles that form elongated, connected domains post-anneal. XRD measurements indicate a typical wurtzite structure and reveal an increase in average grain size from 16.3 nm to 21.2 nm in Ar-annealed samples over pristine samples. Visible photoacoustic spectra reveal the contribution of defect levels on the absorption edge of the fundamental gap of zinc oxide. The steepness parameter of the absorption edge, which is inversely proportional to the width of the absorption edge, decreased from 0.1582 (pristine to 0.1539 (annealed for 90 minutes revealing increased density of defect states upon annealing. The FTIR photoacoustic spectra show an intense peak at 412 cm-1 and a shoulder at 504 cm-1 corresponding to the two transverse optical stretching modes of ZnO. These results may indicate a self-assembly mechanism upon anneal under Ar atmosphere leading to early-stage nanorod growth.

  9. 40 Ar/39 Ar Ages of Auriferous Quartz Veins from the Fengyang and Zhangbaling Regions and Their Geological Significance

    Institute of Scientific and Technical Information of China (English)

    应汉龙; 赵利清

    2003-01-01

    Geotectonically the Fengyang and Zhangbaling regions belong to the North China craton and the Dabie-Sulu orogene, respectively. Neo-Archean gneiss and amphibolite and metamor-phosed sea-facies sodic volcanic rocks are the main outcrops in the two regions, respectively. The Zhangbaling terrane strike-skipped along the Tancheng-Lujiang fault zone in Mesozoic and Cenozo-ic eras and got close to the Fengyang terrane. Mesozoic Yanshanian intrusions occur broadly in the two regions. Gold-bearing quartz veins occur in the metamorphic rocks in the Fengyang region and in the granodiorite and metamorphosed sea-facies sodic volcanic rocks in the Zhangbaling region.Generally, the formation of the auriferous quartz veins involved three stages. At the first stage, gold-poor sulfide quartz veins were formed; at the second stage gold-rich quartz sulfide veins were formed; and at the third stage gold-poor barite and/or carbonate veins were formed. The 40Ar/39Ar step-heating plateau ages of the first-stage and the second-stage quartz aggregates from the Zhuding, Maoshan and Shangcheng gold deposits range between 116.1 + 0.6 Ma and 118.3 + 0.5 Ma and are pretty close to their least apparent ages and isochronal ages, respectively. All plat-eau, least apparent and isochronal ages range between 113.4 ± 0.4 Ma and 118.3 ± 0.5 Ma,which are considered as the formation age range of the quartz. It is reasonable and reliable to take the 40Ar/39Ar age range of the quartz as the formation age range of gold-bearing quartz veins on the basis of spatial relationship between gold-bearing quartz veins and their country rocks. The gold deposits in the two regions were formed in Aptian, Cretaceous, when the Tancheng-Lujiang fault zone moved as a normal fault with slightly right-lateral strike-skip, was extensional and expe-rienced very strong magmatic process. It is shown that the magmatic hydrothermal fluid is a very important part of the gold ore-forming hydrothermal fluid in the Fengyang and

  10. Multiplicity fluctuations in Ar+Sc collisions at the CERN SPS from NA61/SHINE arXiv

    CERN Document Server

    Seryakov, Andrey

    Multiplicity fluctuations were investigated in Ar+Sc collisions at 13A, 19A, 30A, 40A, 75A, 150A GeV/c using the NA61/SHINE detector at the SPS. Centrality selection is based on the nucleon-spectator energy in the forward hemisphere as measured by the Projectile spectator detector. Preliminary results on the scaled variance {\\omega} and the strongly intensive measure {\\Omega} were obtained for the multiplicity distribution of all, negatively and positively charged hadrons. Results are discussed and compared with p+p results and Pb+Pb data of NA49 and EPOS 1.99 simulations.

  11. Dating fault-generated pseudotachylytes: comparison of 40Ar/39Ar stepwise-heating, laser-ablation and Rb-Sr microsampling analyses

    Science.gov (United States)

    Müller, Wolfgang; Kelley, Simon; Villa, Igor

    2002-07-01

    Three different geochronological techniques (stepwise-heating, laser-ablation 40Ar/39Ar, Rb-Sr microsampling) have been evaluated for dating fault-generated pseudotachylytes sampled along the Periadriatic Fault System (PAF) of the Alps. Because pseudotachylytes are whole-rock systems composed of melt, clast and alteration phases, chemical control from both Ar isotopes (Cl/K, Ca/K ratios) and EMPA analyses is crucial for their discrimination. When applied to stepwise-heating 40Ar/39Ar analyses, this approach yields accurate melt-related ages, even for complex age spectra. The spatial resolution of laser-ablation 40Ar/39Ar analyses is capable of contrasting melt, clast and alteration phases in situ, provided the clasts are not too fine grained, the latter of which results in integrated "mixed" ages without geological information. Elevated Cl/K and Ca/K ratios were found to be an invaluable indicator for the presence of clast admixture or inherited 40Ar. Due to incomplete isotopic resetting during frictional melting, Rb-Sr microsampling dating did not furnish geologically meaningful ages. On the basis of isotopic disequilibria among pseudotachylyte matrix phases, and independent Rb-Sr microsampling dating of cogenetic (ultra)mylonites, the concordant 40Ar/39Ar pseudotachylyte ages are interpreted as formation ages. The investigated pseudotachylytes altogether reveal a Cretaceous to Miocene history for the entire PAF, consistent with independent geological evidence. Individual faults, however, consistently reveal narrower intervals of enhanced activity lasting a few million years. Electronic supplementary material to this paper can be obtained by using the Springer LINK server at http://dx.doi.org/10.1008/s00410-002-0381-6

  12. Surface modification and biocompatible improvement of polystyrene film by Ar, O{sub 2} and Ar + O{sub 2} plasma

    Energy Technology Data Exchange (ETDEWEB)

    Chen Yashao, E-mail: yschen@snnu.edu.cn [Key Laboratory of Applied Surface and Colloid Chemistry (Shaanxi Normal University), Ministry of Education, School of Chemistry and Chemical Engineering, Xi' an 710062 (China); Gao Qiang; Wan Haiyan; Yi Jinhong; Wei Yanlin [Key Laboratory of Applied Surface and Colloid Chemistry (Shaanxi Normal University), Ministry of Education, School of Chemistry and Chemical Engineering, Xi' an 710062 (China); Liu Peng [Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, College of Bioengineering, Chongqing 400044 (China)

    2013-01-15

    Highlights: Black-Right-Pointing-Pointer NVP is successfully grafted onto the different discharge gases (Ar, O{sub 2}, and Ar + O{sub 2}) plasma-treated PS film surface by Ar plasma induced graft polymerization. Black-Right-Pointing-Pointer Compare with Ar and O{sub 2} plasma, the Ar + O{sub 2} plasma-treated film surface introduced large amounts of NVP, as known from ATR-FTIR and XPS results. Black-Right-Pointing-Pointer According to SEM, the surface roughness increased at different levels after plasma treatment. Contact angle reveal that the hydrophilicity of the PS film surface was greatly improved. Black-Right-Pointing-Pointer Cellular compatibility tests indicate that Ar + O{sub 2} plasma is more capable of increasing cell adhesion and proliferation. - Abstract: This paper reports the surface modification of different discharge gases (Ar, O{sub 2}, and Ar + O{sub 2}) plasma-treated polystyrene (PS) film by Ar plasma induced graft polymerization, with biocompatible monomer N-vinyl-2-pyrrolidone (NVP) is carried out to improve biocompatibility. The films are characterized by attenuated total reflectance Fourier transfer infrared (ATR-FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). Water contact angle measurement demonstrates the modified films possess a relatively hydrophilic surface. Furthermore, the films are also examined cell attachment and proliferation in vitro using mouse fibroblasts (L929 cells). The modified film surface shows a better cell distribution and growth than that of the pristine PS surface. From cell culture experiments, it is also observed that Ar + O{sub 2} plasma is more capable of increasing cell adhesion and proliferation. This method will provide a potential and effective solution for grafting useful component in future tissue-engineering applications.

  13. Acetalated dextran encapsulated AR-12 as a host-directed therapy to control Salmonella infection.

    Science.gov (United States)

    Hoang, Ky V; Borteh, Hassan M; Rajaram, Murugesan V S; Peine, Kevin J; Curry, Heather; Collier, Michael A; Homsy, Michael L; Bachelder, Eric M; Gunn, John S; Schlesinger, Larry S; Ainslie, Kristy M

    2014-12-30

    AR-12 has been evaluated in clinical trials as an anti-cancer agent but also has demonstrated host-directed, broad-spectrum clearance of bacteria. We have previously shown that AR-12 has activity in vitro against Salmonella enterica serovar Typhimurium and Francisella species by inducing autophagy and other host immune pathways. AR-12 treatment of S. Typhimurium-infected mice resulted in a 10-fold reduction in bacterial load in the liver and spleen and an increased survival time. However, AR-12 treatment did not protect mice from death, likely due poor formulation. In the current study, AR-12 was encapsulated in a microparticulate carrier formulated from the novel degradable biopolymer acetalated dextran (Ace-DEX) and subsequently evaluated for its activity in human monocyte-derived macrophages (hMDMs). Our results show that hMDMs efficiently internalized Ace-DEX microparticles (MPs), and that encapsulation significantly reduced host cell cytotoxicity compared to unencapsulated AR-12. Efficient macrophage internalization of AR-12 loaded MPs (AR-12/MPs) was further demonstrated by autophagosome formation that was comparable to free AR-12 and resulted in enhanced clearance of intracellular Salmonella. Taken together, these studies provide support that Ace-DEX encapsulated AR-12 may be a promising new therapeutic agent to control intracellular bacterial pathogens of macrophages by targeting delivery and reducing drug toxicity.

  14. Aurora A regulates expression of AR-V7 in models of castrate resistant prostate cancer

    Science.gov (United States)

    Jones, Dominic; Noble, Martin; Wedge, Steve R.; Robson, Craig N.; Gaughan, Luke

    2017-01-01

    Androgen receptor variants (AR-Vs) provide a mechanism of therapy evasion in castrate-resistant prostate cancer (CRPC), yet mechanisms of regulation remain largely unknown. Here we investigate the role of Aurora A kinase on AR-Vs in models of CRPC and show depletion of Aurora A reduces AR-V target gene expression. Importantly, knockdown of Aurora A reconfigures splicing of AR pre-mRNA to discriminately down-regulate synthesis of AR-V transcripts, including AR-V7, without effecting full-length AR mRNA; and as a consequence, AR-V-driven proliferation and survival of CRPC cells is markedly reduced. Critically, these effects are reproduced by Aurora A inhibition. We show that Aurora A levels increase in advanced disease and AURKA is an AR-V target gene demonstrating a positive feedback mechanism of androgenic signalling in CRPC. In all, our data suggests that Aurora A plays a pivotal role in regulation of AR-V7 expression and represents a new therapeutic target in CRPC. PMID:28205582

  15. Measure Guideline: Summary of Interior Ducts in New Construction, Including an Efficient, Affordable Method to Install Fur-Down Interior Ducts

    Energy Technology Data Exchange (ETDEWEB)

    Beal, D.; McIlvaine , J.; Fonorow, K.; Martin, E.

    2011-11-01

    This document illustrates guidelines for the efficient installation of interior duct systems in new housing, including the fur-up chase method, the fur-down chase method, and interior ducts positioned in sealed attics or sealed crawl spaces. This document illustrates guidelines for the efficient installation of interior duct systems in new housing. Interior ducts result from bringing the duct work inside a home's thermal and air barrier. Architects, designers, builders, and new home buyers should thoroughly investigate any opportunity for energy savings that is as easy to implement during construction, such as the opportunity to construct interior duct work. In addition to enhanced energy efficiency, interior ductwork results in other important advantages, such as improved indoor air quality, increased system durability and increased homeowner comfort. While the advantages of well-designed and constructed interior duct systems are recognized, the implementation of this approach has not gained a significant market acceptance. This guideline describes a variety of methods to create interior ducts including the fur-up chase method, the fur-down chase method, and interior ducts positioned in sealed attics or sealed crawl spaces. As communication of the intent of an interior duct system, and collaboration on its construction are paramount to success, this guideline details the critical design, planning, construction, inspection, and verification steps that must be taken. Involved in this process are individuals from the design team; sales/marketing team; and mechanical, insulation, plumbing, electrical, framing, drywall and solar contractors.

  16. 40Ar-39Ar Age Constraints on Volcanism and Tectonism in the Terror Rift of the Ross Sea, Antarctica

    Science.gov (United States)

    2007-01-01

    Volcanic sills and dikes inferred from seismic reflection profiles and geophysical studies of the Ross Sea are thought to be related to the rift basins in the region, and their emplacement to be coeval with extension. However, lack of precise geochronology in the Terror Rift of the Ross Sea region has left these inferred relationships poorly constrained and has hindered neotectonic studies, because of the large temporal gaps between seismic reflectors of known ages. New 40Ar/39Ar geochronology presented here for submarine volcanic rocks provides better age constraints for neotectonic interpretations within the Terror Rift. Several samples from seamounts yielded young ages between 156 ± 21 and 122 ± 26 Ka. These ages support interpretations that extension within the Terror Rift was active at least through the Pleistocene. Three evenly spaced samples from the lowermost 100 m of Franklin Island range in age from 3.28 ± 0.04 to 3.73 ± 0.05 Ma. These age determinations demonstrate that construction of a small volcanic edifice such as Franklin Island took at least several hundred thousand years, and therefore that much larger ones in the Erebus Volcanic Province are likely to have taken considerably longer than previously inferred. This warrants caution in applying a limited number of age determinations to define the absolute ages of events in the Ross Sea region

  17. Carbon isotope stratigraphy, magnetostratigraphy, and 40Ar/39Ar age of the Cretaceous South Atlantic coast, Namibe Basin, Angola

    Science.gov (United States)

    Strganac, Christopher; Salminen, Johanna; Jacobs, Louis L.; Polcyn, Michael J.; Ferguson, Kurt M.; Mateus, Octávio; Schulp, Anne S.; Morais, Maria Luísa; Tavares, Tatiana da Silva; Gonçalves, António Olímpio

    2014-11-01

    We present the δ13C and paleomagnetic stratigraphy for marine strata at the coast of southern Angola, anchored by an intercalated basalt with a whole rock 40Ar/39Ar radiometric age of 84.6 ± 1.5 Ma, being consistent with both invertebrate and vertebrate biostratigraphy. This is the first African stable carbon isotope record correlated to significant events in the global carbon record spanning the Late Cenomanian to Early Maastrichtian. A positive ∼3‰ excursion seen in bivalve shells below the basalt indicates the Cenomanian-Turonian Boundary Event at 93.9 Ma, during Oceanic Anoxic Event 2. Additional excursions above the basalt are correlated to patterns globally, including a negative ∼3‰ excursion near the top of the section interpreted as part of the Campanian-Maastrichtian Boundary Events. The age of the basalt ties the studied Bentiaba section to a pulse of Late Cretaceous magmatic activity around the South Atlantic and significant tectonic activity, including rotation, of the African continent.

  18. Potash-rich volcanic rocks and lamprophyres in western Shandong Province: 40Ar39Ar dating and source tracing

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    Highly precise 40Ar39Ar dating results demonstrate that the ages of potash-rich volcanic rocks in western Shandong Province are 114.7-124.3 Ma, and that of the lamprophyres is 119.6 Ma. The potash-rich volcanic rocks have relatively high (87Sr/86Sr)i ratios ( 0.708715-0.711418)and distinctly negative εNd values ( -11.47 - -17.54), and are enriched in radiogenic lead (206Pb/204pb=17.341-17.622,207pb/204Pb=15.525-15.538, 208Pb/204pb = 37.563-37.684).Similarly, the lamprophyres also have quite low εNd values ( -11.57 - -19.64). Based on the fact that the Sr, Nd and Pb isotopic compositions of potash-rich volcanic rocks are very consistent with that of the clinopyroxene separates, and by integrating comprehensive analyses of their tectonic settings,and extensive comparisons of the Sr, Nd isotopic compositions with that of the related simultaneous rocks, it is concluded that the potash-rich volcanic rocks and lamprophyres in western Shandong Province were most possibly derived from the partial melting of enriched mantle which was caused by source contamination and metasomatism of subducted continental crustal materials.``

  19. High resolution mapping of Dense spike-ar (dsp.ar) to the genetic centromere of barley chromosome 7H.

    Science.gov (United States)

    Shahinnia, Fahimeh; Druka, Arnis; Franckowiak, Jerome; Morgante, Michele; Waugh, Robbie; Stein, Nils

    2012-02-01

    Spike density in barley is under the control of several major genes, as documented previously by genetic analysis of a number of morphological mutants. One such class of mutants affects the rachis internode length leading to dense or compact spikes and the underlying genes were designated dense spike (dsp). We previously delimited two introgressed genomic segments on chromosome 3H (21 SNP loci, 35.5 cM) and 7H (17 SNP loci, 20.34 cM) in BW265, a BC(7)F(3) nearly isogenic line (NIL) of cv. Bowman as potentially containing the dense spike mutant locus dsp.ar, by genotyping 1,536 single nucleotide polymorphism (SNP) markers in both BW265 and its recurrent parent. Here, the gene was allocated by high-resolution bi-parental mapping to a 0.37 cM interval between markers SC57808 (Hv_SPL14)-CAPSK06413 residing on the short and long arm at the genetic centromere of chromosome 7H, respectively. This region putatively contains more than 800 genes as deduced by comparison with the collinear regions of barley, rice, sorghum and Brachypodium, Classical map-based isolation of the gene dsp.ar thus will be complicated due to the infavorable relationship of genetic to physical distances at the target locus.

  20. 40Ar-39Ar Age and Geological Significance of the Sawur Gold Belt in Northern Xinjiang, China

    Institute of Scientific and Technical Information of China (English)

    SHEN Ping; SHEN Yuanchao; ZENG Qingdong; LIU Tiebing; LI Guangming

    2005-01-01

    The 40Ar-39Ar age method is employed in this work to analyze fluid inclusions of quartz in the ore bodies from the Kuo'erzhenkuola and Bu'erkesidai gold deposits in the Sawur gold belt, northern Xinjiang. The results show that the main mineralization occurred in 332.05±2.02-332.59±0.51 Ma and 335.53±0.32 Ma-336.78±0.50 Ma for the Kuo'erzhenkuola and Bu'erkesidai gold deposits respectively, indicating that the two deposits are formed almost at the same time, and the metallogenic time of the two deposits are close to those of the hosting rocks formed by volcanic activity of the Sawur gold belt. This geochronological study supplies new evidence for determining the timing of gold mineralization, the geneses of gold deposits, and identifies that in the Hercynian period, the Altay area developed a tectonic-magmatic-hydrothermal mineralization of the Early Carboniferous period, except the two known mineralization periods including the tectonic-magmatic-hydrothermal mineralization of the Devonian period and Late CarboniferousPermian period.

  1. A combined noble gas and {sup 40}Ar-{sup 39}Ar study of Salt Lake Crater xenolith SL322 from Oahu, Hawaii

    Energy Technology Data Exchange (ETDEWEB)

    Trieloff, M. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Rocholl, A. [Heidelberg Univ. (Germany). Mineralogisch-Petrographisches Inst.; Jessberger, E.K. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany)]|[Muenster Univ. (Germany). Inst. fuer Planetologie

    1998-12-31

    The microdistribution of noble gases in a garnet pyroxenite nodule from Salt Lake Crater (SLC), Oahu, Hawaii, was investigated by a detailed step-heating and -crushing analysis and a {sup 40}Ar-{sup 39}Ar-study. A noble gas component with MORB type argon, helium and neon resides in CO{sub 2}-rich fluid inclusions trapped in <30 km depth. This component was most probably derived from the nephelinitic SLC host magma and confirms the dominance of MORB type noble gases in the late post-erosional magmatic stages of Hawaiian volcanism, as suggested previsouly (Kurz et al., 1983; Valbracht et al., 1996). A second previously detected (Rocholl et al., 1996) low {sup 40}Ar/{sup 36}Ar ({proportional_to}5000) component turned out to be associated with two different reservoirs. The larger reservoir is most probably related to garnet, the other one is associated with low retentive sites containing few K and Cl and could not yet be adequately identified. The low {sup 40}Ar/{sup 36}Ar ({proportional_to}5000) component hosted by garnet can be interpreted as a mixture of MORB and plume type noble gas components with specific {sup 4}He/{sup 40}Ar ratios. The results demonstrate the complexity of the microdistribution of noble gases in ultramafic nodules and allow insight into plume induced metasomatism of the Hawaiian lithosphere. (orig.)

  2. Interior of Mars from InSight geodesy

    Science.gov (United States)

    Dehant, V.; Folkner, W.; Asmar, S.; Rivoldini, A.; Van Hoolst, T.; Banerdt, B.

    2012-04-01

    Within the INSIGHT mission, the radioscience experiment aims at obtaining the rotation and interior structure of Mars. It is called for that reason RISE (Rotation and Interior Structure Experiment). It does not uses an instrument stricto sensus but uses the spacecraft X-band communication system. The parameters that will be determined from the rotation and orientation observation (i.e. from length-of-day variations, precession (long-term changes in the rotational orientation), and nutations (periodic changes in the rotational orientation)) are the angular momentum of the atmosphere, the moments of inertia of the whole planet and of the core. This will allow to constrain the interior models of Mars. The Doppler effect on the radio signal is related to the variations of the rotation and orientation of the planet Mars. When measured for a time longer than the seasonal timescale, the observation can provide values for the moments of inertia. The mean moment of inertia is a strong constraint on the core size and density, core temperature and mantle mineralogy. The size of the core has major consequences for internal structure and planetary evolution. For example, a large core makes a perovskite-bearing lower mantle impossible, due to insufficient pressure at the base of the mantle. The endothermic phase transition spinel-perovskite has a strong effect on mantle convection. The size and composition of the core are also important in the history of the magnetic dynamo, which in turn has important consequences for the retention of the atmosphere and the possible habitability of the surface early in Mars' history.

  3. The transcriptional programme of the androgen receptor (AR) in prostate cancer.

    Science.gov (United States)

    Lamb, Alastair D; Massie, Charlie E; Neal, David E

    2014-03-01

    The androgen receptor (AR) is essential for normal prostate and prostate cancer cell growth. AR transcriptional activity is almost always maintained even in hormone relapsed prostate cancer (HRPC) in the absence of normal levels of circulating testosterone. Current molecular techniques, such as chromatin-immunoprecipitation sequencing (ChIP-seq), have permitted identification of direct AR-binding sites in cell lines and human tissue with a distinct coordinate network evident in HRPC. The effectiveness of novel agents, such as abiraterone acetate (suppresses adrenal androgens) or enzalutamide (MDV3100, potent AR antagonist), in treating advanced prostate cancer underlines the on-going critical role of the AR throughout all stages of the disease. Persistent AR activity in advanced disease regulates cell cycle activity, steroid biosynthesis and anabolic metabolism in conjunction with regulatory co-factors, such as the E2F family, c-Myc and signal transducer and activator of transcription (STAT) transcription factors. Further treatment approaches must target these other factors.

  4. Further support for a Cretaceous age for the feathered-dinosaur beds of Liaoning,China:New 40Ar/39Ar dating of the Yixian and Tuchengzi Formations

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    We report new 40Ar/39Ar dating results obtained from total fusion and incremental-heating analyses of sanidine and biotite from three tuffs found interbedded within the fossil-bearing deposits of Liaoning, northeast China. The first is a new sample of the Bed 6 Sihetun tuff from the Yixian Formation, previously dated by our team as middle Early Cretaceous, and recently considered by Lo et al., partially reset due to metamorphism from a nearby basaltic sill. The second is the Yixian Bed 9 tuff from Hengdaozi considered by Lo et al. to be unaffected by metamorphism and whose age, based on total fusion 40Ar/39Ar dating of biotite, argues for a Jurassic age for the Yixian Formation.The third tuff is a previously undated tuff from the upper part of the underlying Tuchengzi Formation. Single crystal total fusion 40Ar/39Ar analyses of the Sihetun sanidine showed homogeneous radiogenic Ar, Ca/K ratios, excellent reproducibility and gave a mean age of 125.0 ± 0.18 (1SD) ±0.04 (SE) Ma. Single sanidine crystal total fusion 40Ar/39Aranalyses of the Hengdaozi tuff gave a mean age of 125.0 +0.19 (1SD) ± 0.04 (SE) Ma, which is indistinguishable from the Sihetun tuff. The Tuchengzi Formation tuff gave a mean age of 139.4 ± 0.19 (1SD) ± 0.05 (SE) Ma. Detailed laser incremental-heating analyses of biotite from Sihetun, Hengdaozi, and Tuchengzi tuffs show disturbed Ar release patterns and evidence of trapped argon components. We conclude from these analyses that the total fusion dates on biotite by Lo et al. are erroneously old and isotopic dating of both biotite and sanidine from tuffs of the Yixian Formation point to a middle Early Cretaceous age. The upper part of the Tuchengzi Formation can be referred to the Early Cretaceous.``

  5. Sequestration of noble gases in giant planet interiors

    CERN Document Server

    Wilson, Hugh F; 10.1103/PhysRevLett.104.121101

    2010-01-01

    The Galileo probe showed that Jupiter's atmosphere is severely depleted in neon compared to protosolar values. We show, via ab initio simulations of the partitioning of neon between hydrogen and helium phases, that the observed depletion can be explained by the sequestration of neon into helium-rich droplets within the postulated hydrogen-helium immiscibility layer of the planet's interior. We also demonstrate that this mechanism will not affect argon, explaining the observed lack of depletion of this gas. This provides strong indirect evidence for hydrogen-helium immiscibility in Jupiter.

  6. Evaluations of fiber optic sensors for interior applications

    Energy Technology Data Exchange (ETDEWEB)

    Sandoval, M.W.; Malone, T.P.

    1996-02-01

    This report addresses the testing and evaluation of commercial fiber optic intrusion detection systems in interior applications. The applications include laying optical fiber cable above suspended ceilings to detect removal of ceiling tiles, embedding optical fibers inside a tamper or item monitoring blanket that could be placed over an asset, and installing optical fibers on a door to detect movement or penetration. Detection capability of the fiber optic sensors as well as nuisance and false alarm information were focused on during the evaluation. Fiber optic sensor processing, system components, and system setup are described.

  7. Evolução da Atmosfera nos Planetas Interiores

    OpenAIRE

    Monteiro, Graça Maria Viana

    2001-01-01

    Dissertação de Mestrado em Geologia apresentada à Faculdade de Ciências da Universidade do Porto Os planetas do nosso Sistema Solar são muito diferentes uns dos outros no seu aspecto exterior, tamanho e temperatura superficial. Mas, sendo a planetologia uma ciência em expansão, muitas das aparentes diferenças revelam-se, como, caminhos evolutivos divergentes. Neste trabalho é explorada essa evolução no que respeita às atmosferas dos planetas interiores, em especial de Vénus, da Terra e de ...

  8. Multiperiod hydrothermal economic dispatch by an interior point method

    Directory of Open Access Journals (Sweden)

    Kimball L. M.

    2002-01-01

    Full Text Available This paper presents an interior point algorithm to solve the multiperiod hydrothermal economic dispatch (HTED. The multiperiod HTED is a large scale nonlinear programming problem. Various optimization methods have been applied to the multiperiod HTED, but most neglect important network characteristics or require decomposition into thermal and hydro subproblems. The algorithm described here exploits the special bordered block diagonal structure and sparsity of the Newton system for the first order necessary conditions to result in a fast efficient algorithm that can account for all network aspects. Applying this new algorithm challenges a conventional method for the use of available hydro resources known as the peak shaving heuristic.

  9. Development of assembly techniques for fire resistant aircraft interior panels

    Science.gov (United States)

    Lee, S. C. S.

    1978-01-01

    Ten NASA Type A fire resistant aircraft interior panels were fabricated and tested to develop assembly techniques. These techiques were used in the construction of a full scale lavatory test structure for flame propagation testing. The Type A panel is of sandwich construction consisting of Nomex honeycomb filled with quinone dioxime foam, and bismaleimide/glass face sheets bonded to the core with polyimide film adhesive. The materials selected and the assembly techniques developed for the lavatory test structure were designed for obtaining maximum fire containment with minimum smoke and toxic emission.

  10. Decorative Materials in the Application of Interior Design

    Institute of Scientific and Technical Information of China (English)

    高超

    2013-01-01

      Abstact:With the accelerating of urbanization process, people is becoming more and more about life and living and work space environment and facility requirements more and more high, people on indoor and outdoor when deco-rating, pays more attention to adopt economic, environmental protection and practical decoration materials used in modern indoor and outdoor decoration, thus promoting the rapid development of decoration industry. Decoration materials has become the carrier of the interior design, any design and ideas need through the choice of materials and build on.

  11. Interiority of the optimal population growth rate with endogenous fertility

    OpenAIRE

    Gemma Abio

    2003-01-01

    - Este artículo analiza el problema de la interioridad de la tasa de crecimiento óptima de la población en un modelo de generaciones solapadas de dos períodos con fecundidad endógena. Usando funciones de utilidad y de producción de tipo Cobb-Douglas, se muestra que la introducción de un coste de tener hijos permite la posibilidad de que exista un máximo global interior en el problema planificador, contrariamente a lo que sucede en el caso con fecundidad exógena

  12. Reforma Interior Integral del Foment Mataroní

    OpenAIRE

    Caballero Mateo, Víctor; Terrón Panadero, Ismael

    2014-01-01

    El contenido del presente proyecto, realizado por los técnicos Víctor Caballero Mateo e Ismael Terrón Panadero, desarrolla la propuesta de reforma interior del Foment Mataroní, situado en la ciudad de Mataró (Barcelona). Actualmente las actividades realizadas en el edificio tienen un objetivo social, como clases de idiomas en grupo, talleres de cocina, revelado fotográfico y pintura, además dispone de un espacio destinado a la proyección de películas y la representación de obra...

  13. The Deconfinement Phase Transition in the Interior of Neutron Stars

    CERN Document Server

    Zhou, Xia

    2010-01-01

    The decon?nement phase transition which happens in the interior of neutron stars are investigated. Coupled with the spin evolution of the stars, the effect of entropy production and deconfinement heat generation during the deconfinement phase transition in the mixed phase of the neutron stars are discussed. The entropy production of deconfinement phase transition can be act as a signature of phase transition, but less important and does not significantly change the thermal evolution of neutron stars. The deconfinement heat can change the thermal evolution of neutron star distinctly.

  14. Isolated Neutron Stars: From the Surface to the Interior

    CERN Document Server

    Zane, Silvia; Page, Dany

    2007-01-01

    This book collects the contributions presented at the conference Isolated Neutron Stars: From the Surface to the Interior, held in London in April 2006. Forty years after the discovery of radio pulsars it presents an up-to-date description of the new vision of isolated neutron stars that has emerged in recent years with the advance of multi-wavelength observations. The great variety of isolated neutron stars, from pulsars to magnetars, some of them discovered very recently and many of them not detectable in radio wavelengths, is amply covered by descriptions of recent observational results and presentations of the latest theoretical interpretation of these data.

  15. Effects of interior aircraft noise on speech intelligibility and annoyance

    Science.gov (United States)

    Pearsons, K. S.; Bennett, R. L.

    1977-01-01

    Recordings of the aircraft ambiance from ten different types of aircraft were used in conjunction with four distinct speech interference tests as stimuli to determine the effects of interior aircraft background levels and speech intelligibility on perceived annoyance in 36 subjects. Both speech intelligibility and background level significantly affected judged annoyance. However, the interaction between the two variables showed that above an 85 db background level the speech intelligibility results had a minimal effect on annoyance ratings. Below this level, people rated the background as less annoying if there was adequate speech intelligibility.

  16. Ikonografi Arsitektur dan Interior Masjid Kristal Khadija Yogyakarta

    Directory of Open Access Journals (Sweden)

    Rony Rony

    2014-10-01

    Full Text Available Masjid Kristal Khadija (MKK adalah sebuah masjid yang berada di kompleksYayasan Budi Mulia Dua di Yogyakarta. Masjid ini memiliki keunikan pada arsitekturdan desain interiornya. MKK sebagai karya seni akan dikaji dengan metodeikonografi. Metode ini adalah suatu studi untuk mengungkapkan makna dari suatukarya seni dengan tahapan-tahapan, yakni deskripsi praikonografi, analisis ikonografi,dan interpretasi ikonologi. Ketiga proses tahap kajian tersebut bersifat prerequisiteatau prasyarat dari tahapan satu ke tahapan selanjutnya. Hasil penelitian padatahap deskripsi praikonografi bahwa wujud arsitektur dan interior MKK memilikiciri-ciri masjid bergaya Persia, tetapi masjid ini bukan termasuk tipe hipostyle karenabangunan masjid yang berdiri sendiri dan tidak dilengkapi riwaqs. Analisis ikonografimenghasilkan makna yang ditunjukkan oleh tema feminin dengan konsep materialkaca cermin yang diasosiasikan aktivitas kaum wanita, yakni bersolek. Interpretasiikonologi dihasilkan makna secara simbolis bahwa MKK merepresentasikanide dan gagasan tokoh dibaliknya. Penafsiran makna ini dapat menambah muatanfilosofi MKK sebagai ikon kebanggaan Yayasan Budi Mulia Dua.   The Iconographic on the Architecture and Interior of Masjid Kristal KhadijaYogyakarta. The Masjid Kristal Khadija is a mosque located in a high school complexunder the auspices of the Budi Mulia Dua in Yogyakarta. This mosque is unique in itsarchitecture and interior design. The mosque as a work of art is analyzed by the methodof iconography. This method is a study to reveal the meaning of a work of art with thestages namely; pre-iconographical description, iconographical analysis, and iconologicalinterpretation. There is a prerequisite relationship among those stages, meaning thatthe first stage has to be conducted before the second and the second has to be completedbefore the last one. The result of the pre-iconographical description stage shows thatthe architecture and interior of Kristal

  17. Interior properties of five-dimensional Schwarzschild black hole

    CERN Document Server

    Hong, Soon-Tae

    2014-01-01

    We investigate inner structure of Schwarzschild black hole on a five-dimensional spacetime S^3xR^2. To do this, we exploit a f\\"unfbein scheme. In particular, we construct an equation of state of hydrostatic equilibrium for the five-dimensional Schwarzschild black hole, which is a five-dimensional version of the Tolman-Oppenheimer-Volkoff equation on four-dimensional manifold. We also investigate uniform density interior configuration of the five-dimensional black hole which consists of incompressible fluid of density, to find a general relativistic expression for pressure.

  18. Department of the Interior bison meeting : June 14-15, 2006 : Presentations and discussion notes

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Compilation of PowerPoint presentations and discussion notes from the Department of the Interior meeting held June 14-15, 2006 at Fort Niobrara National Wildlife...

  19. Contaminants in Interior Least Tern and Snowy Plover Eggs from Quivira National Wildlife Refuge in 1992

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Four flooded or abandoned eggs of interior least terns (Sterna anti11arum) and four flooded or abandoned eggs of snowy plovers (Charadrium aiexandrinus) that nested...

  20. Present status and possible future management of wolf populations in interior and arctic Alaska

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This paper discusses the status and possible future of wolf management in interior and arctic Alaska. The paper begins by discussing the history of the human-wolf...