WorldWideScience

Sample records for art galleries

  1. ART GALLERY IN LHASA

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Art galleries have emerged on the streets of Lhasa since the reform and opening up of China.The earliest ones were Art Gallery of Tibetan Exhibition Hall and Art Gallery of Potala Palace 20 years before.For 20 years as one fell,another rose until now,tens of art galleries of various sizes and centred around the Barkor Street are attracting enormous numbers of tourists from both home and abroad.

  2. Engineering Art Galleries

    OpenAIRE

    de Rezende, P.; Souza, C; Friedrichs, S.; Hemmer, M.; Kröller, A.; Tozoni, D.

    2014-01-01

    The Art Gallery Problem is one of the most well-known problems in Computational Geometry, with a rich history in the study of algorithms, complexity, and variants. Recently there has been a surge in experimental work on the problem. In this survey, we describe this work, show the chronology of developments, and compare current algorithms, including two unpublished versions, in an exhaustive experiment. Furthermore, we show what core algorithmic ingredients have led to recent successes.

  3. A Note on Edge Guards in Art Galleries

    CERN Document Server

    Nandakumar, R

    2011-01-01

    We examine the Art Gallery Problem with Edge Guards. We present a heuristic algorithm to arrange edge guards to guard only the inward side of the walls of any N-vertex simple polygonal gallery using at most roof (N/4) edge guards - a weakened version of Toussaint's conjecture on the number of edge guards that can guard an entire simple polygon

  4. Nest of blue paper cranes on floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  5. Nests of orange cranes on floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  6. Green and blue paper cranes in art gallery exhibit

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  7. Nest of yellow cranes on floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  8. View of crane exhibit from middle of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  9. View of crane exhibit from floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  10. View of crane exhibit from back of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  11. Long view of paper crane nests in art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  12. Paper cranes and nests of cranes in art gallery exhibit

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  13. Teaching from objects and classics in a college art gallery

    OpenAIRE

    Rothermel, Barbara

    2005-01-01

    The Daura Gallery exists to support the mission of Lynchburg College by being a resource for teaching through the collection, care, interpretation and exhibition of works of art. This paper examines the Lynchburg College undergraduate museum studies program, which combines teaching from the objects in the Daura Gallery collection with the Lynchburg College Symposium Readings, Classical Selections on Great Issues (LCSR). This innovative program connects ideas and objects, and develops critical...

  14. Developpment of art galleries and centers under conditions of contemporary art market

    Directory of Open Access Journals (Sweden)

    Олександра Артемівна Захарова

    2014-10-01

    Full Text Available The article is devoted to the actual problem - the definition of art galleries and centers as a social space. According to the results of an empirical study examined the nature of advertising in galleries and cultural practices of residents of Kiev; highlighted the features of Ukrainian art market and social problems that hinder its development.

  15. InfoGallery: Informative Arts Services for Physical Library Spaces

    DEFF Research Database (Denmark)

    Grønbæk, Kaj; Rohde, Anne; Sundararajah, Balasuthas;

    2006-01-01

    Much focus in digital libraries research has been devoted to new online services rather than services for the visitors in the physical library. This paper describes InfoGallery, which is a web-based infrastructure for enriching the physical library space with informative art "exhibitions......" of digital library material and other relevant information, such as RSS news streams, event announcements etc. InfoGallery presents information in an aesthetically attractive manner on a variety of surfaces in the library, including cylindrical displays and floors. The infrastructure consists of a server...

  16. The Art Gallery/La Galeria de Arte: An Exhibition of Transformation.

    Science.gov (United States)

    Biagi, Juliet

    2001-01-01

    Describes the development of an art gallery within an urban elementary school, examining its impact on diverse students and their social interactions at school and home. The gallery had a positive impact on students (improved self-esteem, motivation, and appreciation of others); the school (transformation of the physical space and appreciation of…

  17. Framing Measurement: An Art Gallery Installation

    Science.gov (United States)

    Bush, Sarah B.; Karp, Karen S.; Bennett, Victoria Miller; Popelka, Liz; Nadler, Jennifer

    2013-01-01

    In this article, the authors describe how mathematics teachers and art teachers were able to enthusiastically engage seventh- and eighth-grade students in an interdisciplinary activity focused on scaling, proportional reasoning, and measurement by recreating artwork on a famous private collection. Using the artwork from The Barnes Foundation in…

  18. Measurements of indoor 222Rn concentration in two art galleries

    International Nuclear Information System (INIS)

    It is point out that radon and their decay products in environment give high dose to human lung. Studies indicate that the indoor radon inhalation by humans has been considered probably the second most important cause of lung cancer after of smoking. A passive-type radon detector was used for measuring indoor radon concentration in two art galleries at Rio de Janeiro city during 90 days January to March, 2009. The aim of this study is to evaluate the occupational and public radon exposure in art galleries and museums. This paper shows the preliminary results of samples collected at two art galleries located in Gavea, Rio de Janeiro city. 30 LEXAN (GE) track detectors were exposed in the air (indoor as well as outdoor). The samples were collected in the same building which is a construction of XIX century. The analysis of the results suggests that the 222Rn concentration levels are different in both sampling site, in closed environmental, demonstrating that, although the construction materials are the same the absence of circulating air is a factor very important to increase the concentration of indoor Rn. (author)

  19. Communities of practice in art and design and museum and gallery education

    OpenAIRE

    Herne, Steve

    2006-01-01

    This article draws on a wider body of research that explores whether art and design teachers (art teachers) and museum and gallery educators (gallery educators) hold conflicting conceptions of ‘critical and contextual studies’. The data analysis focuses on what interviewees said about each other in relation to crossing boundaries between institutions, subject and pedagogical content knowledge, conceptions of the discipline of art and design, the role of gallery education in curriculum develop...

  20. From the Street to Art Galleries : How Graffiti Became a Legitimate Art Form

    OpenAIRE

    Diallo, David

    2014-01-01

    In this article, I explain why graffiti was established almost immediately as a legitimate art form; unlike other hip hop expressive forms such as rap music or break-dancing. I examine the development of this graphic practice and consider the structural elements responsible for its transition from juvenile clandestine expressive form to artistic profession. I especially argue that institutional commentators (journalists, art critics, academics), as much as galleries owners and art sellers, we...

  1. Guarding curvilinear art galleries with vertex or point guards

    CERN Document Server

    Karavelas, Menelaos I

    2008-01-01

    One of the earliest and most well known problems in computational geometry is the so-called art gallery problem. The goal is to compute the minimum possible number guards placed on the vertices of a simple polygon in such a way that they cover the interior of the polygon. In this paper we consider the problem of guarding an art gallery which is modeled as a polygon with curvilinear walls. Our main focus is on polygons the edges of which are convex arcs pointing towards the exterior or interior of the polygon (but not both), named piecewise-convex and piecewise-concave polygons. We prove that, in the case of piecewise-convex polygons, if we only allow vertex guards, $\\lfloor\\frac{4n}{7}\\rfloor-1$ guards are sometimes necessary, and $\\lfloor\\frac{2n}{3}\\rfloor$ guards are always sufficient. Moreover, an $O(n\\log{}n)$ time and $O(n)$ space algorithm is described that produces a vertex guarding set of size at most $\\lfloor\\frac{2n}{3}\\rfloor$. When we allow point guards the afore-mentioned lower bound drops down ...

  2. Communities of Practice in Art and Design and Museum and Gallery Education

    Science.gov (United States)

    Herne, Steve

    2006-01-01

    This article draws on a wider body of research that explores whether art and design teachers (art teachers) and museum and gallery educators (gallery educators) hold conflicting conceptions of "critical and contextual studies". The data analysis focuses on what interviewees said about each other in relation to crossing boundaries between…

  3. Perceptions of Pre-Service Teachers Value of Art Museums and Galleries

    Science.gov (United States)

    Lemon, Narelle; Garvis, Susanne

    2014-01-01

    Art museums and galleries provide many educational opportunities for generalist classroom teachers to engage in learning experiences with students. Beliefs about engagement with art museums and galleries can begin in teacher education programs. This paper explores the beliefs of pre-service teachers in a Bachelor of Education (primary) program in…

  4. Moving the body painting into the art gallery — knowing about and appreciating works of Aboriginal art

    Directory of Open Access Journals (Sweden)

    Howard Morphy

    2011-06-01

    Full Text Available The paper focuses on two kinds of relationship: between Western fine art and Indigenous art, and between anthropological and art historical approaches to understanding and appreciating works of art. The primary focus is on the process by which Australian Aboriginal art came to be incorporated within galleries of fine art. This process brought both kinds of relationships to the fore in the contemporary context and challenged established boundaries exemplified by the distinction between the museum and the art gallery. It is argued that objects encompassed within the category of fine art come from very different cultural traditions and historical backgrounds. The methods of both art history and anthropology can be productively applied in analysing the forms and significance of artworks in their social and cultural contexts. The paper concludes by considering some of the implications of the co-presence of artworks from different cultural traditions in the same contemporary gallery spaces.

  5. View of crane exhibit looking toward front area of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  6. Orange and pink paper crane nests on floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  7. Nests of red and orange paper cranes on floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  8. Paper crane nests in square pattern on floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  9. Nest of pinks and of orange paper cranes on floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  10. Pink and purple crane nests rest on floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  11. Two nest of orange paper cranes on floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  12. View of art gallery from back of room with paper cranes hung in color sequence

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  13. Close-up of doorway in art gallery with a few white cranes

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  14. Yellow, orange, and pink paper cranes nested on floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  15. Paper crane nest in shades of blue on floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  16. View of art gallery from doorway with paper cranes hung in color sequence

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  17. Pink and purple crane nest rests on floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  18. White paper cranes and nest of white cranes near entrance to art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  19. Nest of lavender and purple paper cranes on floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  20. Long view of center area of art gallery with crane display

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  1. Red and orange nests with paper cranes overhead in art gallery exhibit

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  2. Green paper cranes suspended over a green nest on floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  3. Yellow paper crane nests in square pattern on floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  4. Long view of paper cranes and nests in art gallery exhibit

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  5. Two blue paper crane nests and one suspended blue crane in art gallery exhibit

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  6. Two paper cranes with nests in the background in art gallery exhibit

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  7. Three nests of pink and orange paper cranes on floor of art gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  8. Krasotshnõje snõ Sed Arte Gallery / Irina Butjajeva

    Index Scriptorium Estoniae

    Butjajeva, Irina

    2007-01-01

    Valgevene kunstnike Jelena Shlegeli, Vladimir Gontsharuki, Dmitri Zenkovitshi ja Dmitri Masli maalinäitus "Valgevene värvilised unenäod" Tallinna galeriis Aatrium. Näitust vahendas Sed Arte Gallery, galerist Olga Ljubaskina

  9. Contemporary Adult Education Philosophies and Practices in Art Galleries and Museums in Canada and the UK

    Science.gov (United States)

    Clover, Darlene E.; Bell, Lorraine

    2013-01-01

    Public art galleries and museums have been mandated to become more relevant and useful to the lived experiences of the broad communities they claim to serve. Adult education has long been part of the work of these institutions, although historically the relationship has been uneasy, and they seldom feature in the adult education literature. To…

  10. Experiences from a Real-Time Mobile Collaborative Writing System in an Art Gallery

    DEFF Research Database (Denmark)

    Korn, Matthias; Polli, Anna Maria; Klokmose, Clemens Nylandsted

    interfaces to the shared physical space. With a collocated collaborative writing system in the semi-public space of a gallery, we encourage local art discussions and provide a platform for the public to actively participate in interpretations of individual artworks. In this paper, we focus on the experiences...

  11. Institutional history of the Scottish National Gallery of Modern Art : tensions, paradoxes and compromises

    OpenAIRE

    Galastro, Anne Bernadette

    2012-01-01

    This study provides the first comprehensive account of the institutional history of the Scottish National Gallery of Modern Art (SNGMA) from the earliest calls for its foundation at the start of the twentieth century to the recent series of exhibitions marking its fiftieth anniversary in 2010. The SNGMA is both a unique case‐study and a useful illustrative example of the specific category of modern art museum: the account of its history sets the institution within its wider cul...

  12. 加拿大阿尔伯塔省艺术博物馆%Art Gallery of Alberta

    Institute of Scientific and Technical Information of China (English)

    美国兰德尔·斯图特建筑事务所

    2007-01-01

    @@ The new Art Gallery of Alberta was conceived as an engaging and stimulating center for contemporary art in Edmonton. Celebrating its prominent location on Sir Winston Churchill Square,the main civic and arts public square in the city,the project represents the museum's commitment to enhancing the public's experience of the visual arts.

  13. Arts university student mentors and gallery peer leaders: partnerships for learning

    OpenAIRE

    Butcher, John

    2010-01-01

    This case study describes a partnership between University College Falmouth (UCF) and Tate St. Ives (TSI). Framed within a national Enquire project (one strand of a DCMS funded commissioning programme) investigating the learning benefits of gallery education, the report tells the story of a successful collaboration which engaged undergraduate Art student mentors from UCF in a peer leadership project at TSI. The project was evaluated using an innovative action research model to explore peer le...

  14. Art review Keith Tyson, South London Gallery, London

    CERN Multimedia

    Jones, J

    2002-01-01

    Keith Tyson's new exhibition is called Supercollider, the nickname of the CERN particle accelerator in Geneva. "Tyson's attempts to evoke the wonders of the universe include a sphere that changes colour (at least this is pretty), a big, tedious revolving machine with pieces of meteor stuck to it, a massive painting of the "infinite cellular blanket" that resembles a jokey version of the last days of 1960s art, and a 12-part drawing that can be arranged in any order called A Night in a Billion. Chance and the infinite unlikeliness of existence is his heavily stated theme."

  15. Visual events and the friendly eye: modes of educating vision in new educational settings in Danish art galleries

    DEFF Research Database (Denmark)

    Illeris, Helene

    2009-01-01

      New, experimental educational settings such as ‘art laboratories', ‘digital workshops' and ‘theme-based tours' are important to the processes of change towards more inclusive practices, which have been initiated in many Danish art galleries. While traditional gallery education was constructed in...... order to stimulate the ‘disciplined eye' or the ‘aesthetic eye' of the visitors, this article aims to discuss the practices of looking encouraged by contemporary and experimental educational projects. The first part of the article develops a theoretical perspective on educational settings conceived as...... Bal, proposes the ‘friendly eye' as a possible dialogical and collective practice of looking that can be stimulated in educational settings....

  16. Guarding curvilinear art galleries with edge or mobile guards via 2-dominance of triangulation graphs

    CERN Document Server

    Karavelas, Menelaos I

    2008-01-01

    In this paper we consider the problem of monitoring an art gallery modeled as a polygon, the edges of which are arcs of curves, with edge or mobile guards. Our focus is on piecewise-convex polygons, i.e., polygons that are locally convex, except possibly at the vertices, and their edges are convex arcs. We transform the problem of monitoring a piecewise-convex polygon to the problem of 2-dominating a properly defined triangulation graph with edges or diagonals, where 2-dominance requires that every triangle in the triangulation graph has at least two of its vertices in its 2-dominating set. We show that: (1) $\\lfloor\\frac{n+1}{3}\\rfloor$ diagonal guards are always sufficient and sometimes necessary, and (2) $\\lfloor\\frac{2n+1}{5}\\rfloor$ edge guards are always sufficient and $\\lfloor\\frac{2n}{5}\\rfloor$ edge guards are sometimes necessary, in order to 2-dominate a triangulation graph. Based on the above-mentioned results, we prove that, for piecewise-convex polygons, we can compute: (1) a mobile guard set of ...

  17. Post-occupancy evaluation of a restored industrial building: A contemporary art and design gallery in Mexico

    Directory of Open Access Journals (Sweden)

    J. Mundo-Hernández

    2015-12-01

    Full Text Available This paper presents the results obtained from a post-occupancy evaluation (POE study conducted in an old fabric building called “La Violeta”. This structure has been recently converted into a contemporary art gallery. La Violeta is located in Puebla City, Mexico. The building dates from the beginning of the 19th century; it was built and used as a textile factory until the first decades of the 20th century. This POE study aims to assess the new use of the building from the users׳ point of view. Methodology involves historical research of the building, analysis of the conversion strategy, walkthrough investigation, and a user survey. Questions regarding the re-utilization strategy used in the building and its current use are included in the survey, such as “How do people perceive the space regarding its functionality, accessibility, and comfort?” Although the re-utilization process destroyed several historic elements, the re-use of old industrial spaces that otherwise would be obsolete and disused seems pertinent. Developing small renovation projects as part of an integral and wider project seems feasible. Users perceive the building as comfortable but not properly advertised as an art gallery, and its location is difficult to find.

  18. Crafting glass vessels: current research on the ancient glass collections in the Freer Gallery of Art, Washington, D.C.

    Science.gov (United States)

    Nagel, Alexander; McCarthy, Blythe; Bowe, Stacy

    Our knowledge of glass production in ancient Egypt has been well augmented by the publication of recently excavated materials and glass workshops, but also by more recent materials analysis, and experiments of modern glass-makers attempting to reconstruct the production process of thin-walled coreformed glass vessels. From the mounting of a prefabricated core to the final glass product our understanding of this profession has much improved. The small but well preserved glass collection of the Freer Gallery of Art in Washington, D.C. is a valid tool for examining and studying the technology and production of ancient Egyptian core formed glass vessels. Charles Lang Freer (1854-1919) acquired most of the material from Giovanni Dattari in Cairo in 1909. Previously the glass had received only limited discussion, suggesting that most of these vessels were produced in the 18th Dynasty in the 15th and 14th centuries BCE, while others date from the Hellenistic period and later. In an ongoing project we conducted computed radiography in conjunction with qualitative x-ray fluorescence analysis on a selected group of vessels to understand further aspects of the ancient production process. This paper will provide an overview of our recent research and present our data-gathering process and preliminary results. How can the examinations of core formed glass vessels in the Freer Gallery contribute to our understanding of ancient glass production and technology? By focusing on new ways of looking at old assumptions using the Freer Gallery glass collections, we hope to increase understanding of the challenges of the production process of core-vessel technology as represented by these vessels.

  19. Earth Resources Observation and Science (EROS) Center's Earth as Art Image Gallery 3

    Data.gov (United States)

    National Aeronautics and Space Administration — The Earth Resources Observation and Science (EROS) Center manages the Earth as Art Three exhibit, which provides fresh and inspiring glimpses of different parts of...

  20. Art Therapy Services to Support Veterans' Transition to Civilian Life: The Studio and the Gallery

    Science.gov (United States)

    DeLucia, Jennifer Marie

    2016-01-01

    Beyond having knowledge of the treatment of combat-related trauma, art therapists need to understand veterans' experiences of transition from military to civilian life in order to offer effective interventions. This article reviews the literature on veteran transition and the challenges common to transition difficulty and describes two major…

  1. Image Gallery

    Science.gov (United States)

    ... R S T U V W X Y Z Image Gallery Share: The Image Gallery contains high-quality digital photographs available from ... Select a category below to view additional thumbnail images. Images are available for direct download in 2 ...

  2. Innovative Arts Programs Require Innovative Partnerships: A Case Study of STEAM Partnering between an Art Gallery and a Natural History Museum

    Science.gov (United States)

    Grant, Jacqualine; Patterson, Delaney

    2016-01-01

    The arts animate learning because they are inherently experiential and because of their potential to develop creative and critical thinking skills in students. These same skills are valued in science, technology, engineering, and math (STEM) education, but the arts have not been consistently included in STEM lessons. We transformed our STEM…

  3. Suspended paper cranes in gallery exhibit

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  4. Shanghai Huangjie Gallery

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    <正>Shanghai Huangjie Gallery, originally called Huangji Gallery, was founded in 1997. The name of Huangjie originates from the word Huangji Confucian by the great thinker Shao Yong in the Northen Song Dynasty Huang means great , while Ji is believed to be insurmountable The gallery aims at pursuing the culture idea with wonderful taste .

  5. Red and pink paper crane nests in gallery exhibit

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  6. Nest of green paper cranes on floor of gallery

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  7. Pink and orange paper crane nests on gallery floor

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  8. Suspended paper cranes and crane nests in gallery exhibit

    OpenAIRE

    Kletnieks, Carolyn (Photographer)

    2007-01-01

    These paper cranes were exhibited in the Perspective Art Gallery, Squires Student Center. 33,000 paper cranes were received as condolence gifts after the April 16, 2007 shootings on the Virginia Tech campus.

  9. Rael Artel Gallery Tartus ja Varssavis

    Index Scriptorium Estoniae

    2006-01-01

    Rael Artel Gallery : Non-Profit Project Space'i tegevusest Tartus. 27.04-27.05. 2006 Varssavis Warszawski Aktyw Artystov'i ruumides näitus "Estonian Video Art. The blood project", osalesid Flo Kasearu, Gert Hatsukov, Külli K. Kaats, Allan Tõnissoo, Marko Nautras, Tanja Muravskaja ja Airi Triisberg

  10. Lunar Orbiter Photo Gallery

    Data.gov (United States)

    National Aeronautics and Space Administration — The Lunar Orbiter Photo Gallery is an extensive collection of over 2,600 high- and moderate-resolution photographs produced by all five of the Lunar Orbiter...

  11. NAIP Status Maps Gallery

    Data.gov (United States)

    Farm Service Agency, Department of Agriculture — NAIP Status Maps Gallery. These maps illustrate what aerial imagery collection is planned, whats been collected, when it is available and how it is available. These...

  12. Advertising identities: virtual galleries as places of identity

    Directory of Open Access Journals (Sweden)

    Alexandra Zontea

    2010-10-01

    Full Text Available This paper is focused on the public presentation of self through virtual art galleries, singling out the field of photography. Photography has always been disputed as being part of the highbrow arts because of its popular character. Today, anyone who owes a photo camera can experience photography as art, without a rigorous training. Everybody is able to expose the photos freely to a large number of people, on the Internet. Consequently, the Internet opens up a virtual space, in which photo artists and amateurs can promote their works and exhibit them in a personal online gallery, which represents their place in the virtual vastness. Therefore, my research approaches the matter of the virtual gallery as an identitary place, being focused on finding out why artists choose to exhibit in virtual galleries. I asked myself what are the new functions of the virtual art galleries?Are they understood as online markers that distinguish the owners in these virtual environments? In other words, are these personal galleries a way of expressing online identities?

  13. National Gallery in Prague

    Czech Academy of Sciences Publication Activity Database

    Mikeš, Stanislav; Haindl, Michal; Holub, Radek

    2011-01-01

    Roč. 2011, č. 86 (2011), s. 23-24. ISSN 0926-4981 R&D Projects: GA MŠk(CZ) LG11009 Institutional research plan: CEZ:AV0Z10750506 Keywords : virtrual reality * information system Subject RIV: BD - Theory of Information http://library.utia.cas.cz/separaty/2011/RO/haindl-national gallery in prague.pdf

  14. O mercado de galerias e o comércio de arte moderna: São Paulo e Rio de Janeiro nos anos 1950-1960 The gallery market and commerce of modern art: São Paulo and Rio de Janeiro in the 1950's-1960's

    Directory of Open Access Journals (Sweden)

    Maria Lúcia Bueno

    2005-08-01

    Full Text Available Os anos 50 no Brasil transitaram do Nacionalismo de Vargas ao Desenvolvimento de JK, passando pela implantação definitiva de uma sociedade urbana modernizada. Sintonizada com a atmosfera desponta uma geração, imbuída de uma nova sensibilidade estética e novos hábitos de consumo. Neste universo criou-se a base da primeira estrutura de mercado de arte no país, nas cidades de São Paulo e Rio de Janeiro, tendo como condutor as galerias privadas de arte moderna e comtemporânea.In Brazil, the 1950's from the nationalism of Vargas to the developmentism of JK, passing through the definitive implantation of a modernized urban society. Tuned with the atmosphere, a generation is born, impregnated with a new habit of consumption. In this universe, the basis for the first structure of art market in the country was created in the cities of São Paulo and Rio de Janeiro, having as conductores the private galleries of modern and contemporary art.

  15. List of photographers represented in the Moravian Gallery in Brno photographic collection

    Czech Academy of Sciences Publication Activity Database

    Trnková, Petra

    Brno : Moravian Gallery, 2011, s. 527-550. ISBN 978-80-7027-241-1 Institutional research plan: CEZ:AV0Z80330511 Keywords : photography * photographers * Moravian Gallery * collection of photographs * biographic data Subject RIV: AL - Art, Architecture, Cultural Heritage

  16. Whispering Gallery Pulse Compressor

    International Nuclear Information System (INIS)

    A barrel-like cavity resonant at a whispering gallery mode is known as capable to provide a SLED-like rf pulse compression. To enhance the power handling capacity of the compressor, we propose to use a coupler based on a wave tunneling through a continuous slot. A modeling low power 11.4 GHz experiment proved to be consistent with theory. A preliminary technical design for an evacuated high-power compressor has also been developed. According to a theory, a twin-cavity version of the device can efficiently compress microwave pulses produced with sources of limited bandwidth, in particular frequency-chirped pulses

  17. Artfulness

    DEFF Research Database (Denmark)

    Chemi, Tatiana

    2011-01-01

    a collage of previously published materials on Artfulness, in this journal targeted teachers for dysfunctional behaviour children.......a collage of previously published materials on Artfulness, in this journal targeted teachers for dysfunctional behaviour children....

  18. The Art of Selling Art

    OpenAIRE

    Poulsen, Nina

    2009-01-01

    Presenting empirical material from the making of the exhibition “This is Not Fiction” at the Milk Wall Gallery in the autumn 2007, I will in this paper introduce some of the themes and characteristics that are central to the notion of art and to the ethnographic study of it.

  19. Art

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    What is Art?Art is a way of interpreting the worldaround us and our place within it.We can seeart not only in paintings,but in sculpture(雕塑),buildings and even advertising.Traditionally(传统上,照惯例),artists werejudged more for their technical skill,but artnowhas an aesthetic(美学的,审美的)valueand/or emotional impact(冲动).Art doesn't

  20. ARTS

    DEFF Research Database (Denmark)

    Mahadevan, Shankar; Virk, Kashif M.; Madsen, Jan

    2007-01-01

    . We present an abstract system-level modelling and simulation framework (ARTS) which allows for cross-layer modelling and analysis covering the application layer, middleware layer, and hardware layer. ARTS allows MPSoC designers to explore and analyze the network performance under different traffic...... and load conditions, consequences of different task mappings to processors (software or hardware) including memory and power usage, and effects of RTOS selection, including scheduling, synchronization and resource allocation policies. We present the application and platform models of ARTS as well as...... their implementation in SystemC. We present the usage of the ARTS framework as seen from platform developers’ point of view, where new components may be created and integrated into the framework, and from application designers’ point of view, where existing components are used to explore possible...

  1. New Media Art Projects, Panoramic Images and Live Video as Interface between Real and Virtual Worlds

    OpenAIRE

    2015-01-01

    This paper starts with the concept of a virtual gallery where art works, mainly pictures, are presented on the world wide web. One of the first such galleries, the Slovenian Virtual Gallery existing from 1995 is being considered. Today, such galleries are conceptually not much different, however, they typically contain much more material of higher resolution in 2D and 3D. Several open source tools are available for development of such virtual galleries. To gain some notion of immediacy, effor...

  2. Artistic Sensibility in the Studio and Gallery Model: Revisiting Process and Product

    Science.gov (United States)

    Thompson, Geoffrey

    2009-01-01

    This paper examines the cultivation of artistic sensibility and its impact on the art therapy process and product in a community mental health center. Artistic sensibility embodies the sense of self as an artist through the integration of artistic and aesthetic attributes of self and other. The formation of a gallery to exhibit patient art was…

  3. Acquiring and presenting Aboriginal art in art museums: my first 30 years

    Directory of Open Access Journals (Sweden)

    Ronald Radford

    2011-06-01

    Full Text Available Today, Aboriginal art is celebrated as one of the most popular areas in any Australian art museum. The author charts his role in presenting and acquiring Aboriginal art as art, in art museums, against the backdrop of related developments in the Australian art world. He traces developments from the late 1970s when he was director of the Ballarat Fine Art Gallery, though his 23 years at the Art Gallery of South Australia, as a curator then director, to his current position as director of the National Gallery of Australia in Canberra, which now has the largest collection and display of Australian Indigenous art. He also describes the steady progress long before his time, some of which has not been documented before, made by art museums around Australia as they gradually accepted, collected and prominently displayed Aboriginal art. He was invited to present this paper.

  4. The National Gallery of Canada's Theme Rooms: Exploring the Educational Exhibition.

    Science.gov (United States)

    Newlands, Anne

    1991-01-01

    Didactic space for education within art museums is explored, and the development of four such areas in the National Gallery of Canada (Ottawa) is traced. Evaluation of the resulting Theme Rooms through observations of and interviews with 112 patrons will increase their appeal and potential for education. (SLD)

  5. Visual Culture and Literacy Online: Image Galleries as Sites of Learning

    Science.gov (United States)

    Carpenter, B. Stephen, II; Cifuentes, Lauren

    2011-01-01

    As new media emerge in the common culture, the authors recommend that art educators adopt those media to facilitate deep understanding of visual culture and literacy. They report here on applications of an online image gallery that helps users develop ways to interpret what they see and compose. Over the past few years the authors have…

  6. Nanofabricated Optomechanical Whispering Gallery Mode Resonators Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Strong interest in whispering gallery mode resonators (WGMR) for use in chip-scale photonic devices is motivated by their high optical quality, mechanical...

  7. Art and Delusion: Unreality in Art School

    Science.gov (United States)

    Neher, Ross

    2010-01-01

    The author teaches painting in a Master of Fine Arts (MFA) program at Pratt Institute in Brooklyn, New York. Each fall semester he asks his students why they have come to Pratt and what they want to do when they graduate. The common answer is to develop as artists and find a commercial gallery to show and sell their work. Some want the MFA degree…

  8. Landslide Caused Damages in a Gallery

    Science.gov (United States)

    Poisel, R.; Mair am Tinkhof, K.; Preh, A.

    2016-06-01

    On October 5th, 2010, cracks were found in a gallery 1.8 m high and 1.4 m wide. The gallery is 100 years old, runs parallel to a valley flank and was excavated in a tectonically strongly stressed, weathered and slightly dipping sandwich of clayey shales, sandstones and marls. The cracks in the roof as well as in the invert ran parallel to the axis of the gallery. Monitoring showed that crack widths were increasing 1.5 mm per year, sidewall distances were increasing 3.5 mm per year, whereas the height of the gallery was decreasing 2.5 mm per year. After eliminating several possible causes of cracking, a landslide producing the damages had to be taken into consideration. Monitoring of the valley flank surface as well as inclinometer readings revealed that a landslide was occurring, loading the gallery lining. Most probably the landslide had been reactivated by excessive rainfall in 2009 as well as by works for the renewal of a weir in the valley bottom. As stabilization of the slope was not an option for several reasons, it was decided to replace the gallery by a new one deeper inside the slope, which will be ready for operation in 2017. Thus the old gallery has to be kept in operation till then and it was decided to reinforce the old gallery by a heavily reinforced shotcrete lining 10 cm thick. As slope displacements went on, cracks in the shotcrete lining developed with a completely different pattern: in the section where the gallery lies completely in the landslide shear zone no cracks formed until now due to heavy reinforcement, whereas in the transition sections stable ground-landslide and landslide-stable ground diagonal tension cracks in the roof due to shear by the landslide developed. Numerical models showed that cracking and spalling of the shotcrete lining would occur only after some centimetres of additional displacements of the slope, which hopefully will not occur before 2017.

  9. Art and Architectural Space

    DEFF Research Database (Denmark)

    Unterrainer, Walter

    2014-01-01

    and its content. The urban and spatial question goes far beyond museums and other buildings for art: how in democratic societies should public spaces be supported by art and how can public art support ´cityness´ and meaning versus spaces of consumerism. Famous but egocentric buildings with the main......art and architectural space museums and other exhibition spaces or how artists learn to love architects Over the last two decades, innumerable new museums, art galleries and other exhibition spaces have been built and opened all over the globe. The most extreme growth happened in China, where the...... number of museums went up from 300 by 1980 to estimated 3000 museums by 2015. In urban discourses, new museums and buildings for art have been considered as drivers for ´cultural sustainability´ of cities. The notion is diffuse and the reality is more an economic centred ´city branding´ to help the...

  10. Virginia Tech hosts Miniature Worlds: Art from India

    OpenAIRE

    Broughton, Sandra S.

    2007-01-01

    Watercolors, drawings, and sculpture spanning 400 years of Indian history are on view in Miniature Worlds: Art from India, on exhibit now through Oct. 20 in the Perspective Gallery at Squires Student Center on the Virginia Tech campus.

  11. Researching Student Experiences of Digital Workshops in Art Gallery Education

    DEFF Research Database (Denmark)

    Kobbernagel, Christian

    2012-01-01

    to investigate shared patterns among students’ experiences. The integration of a qualitative approach with quantitative technique provides a special interview and ensures that the analysis remains focused on the students’ perspective. This approach offers a way to overcome problems with weak links between data...

  12. Demonstration of LED Retrofit Lamps at the Smithsonian American Art Museum, Washington, DC

    Energy Technology Data Exchange (ETDEWEB)

    Miller, Naomi J.; Rosenfeld, Scott M.

    2012-06-22

    This report documents observations and results obtained from a lighting demonstration project conducted under the U.S. Department of Energy GATEWAY Solid-State Lighting (SSL) Technology Demonstration Program at the Smithsonain American Art Museum in Washington, DC. LED Lamp samples were tested in the museum workshop, temporarily installed in a gallery for feedback, and ultimately replaced all traditional incandescent lamps in one gallery of modernist art at the American Art Museum and partially replacing lamps in two galleries at the Musesum's Renwick Gallery. This report describes the selection and testing process, technology challenges, perceptions, economics, energy use, and mixed results of usign LED replacement lamps in art galleries housing national treasures.

  13. A Phenomenological Reading of Hegel's Concept of History of Philosophy:An Analysis of "The Gallery of Opinions","The Gallery of Knowledge" and "The Gallery of Dresden"

    Institute of Scientific and Technical Information of China (English)

    Ke Xiaogang

    2006-01-01

    From a phenomenological perspective of game-space and horizon,this paper tries to make a deconstructive reading of Hegel's "two galleries",namely,"the gallery of opinions"and "the gallery of knowledge",which are mentioned in the introduction of Hegel's Lectures on the History of Philosophy.The reading shows that the Game-space or the ab-gruendiger Grund of the Hegelian concept of philosophical history lies in an originally differencing space that is keeping in absence,which is called by Edmund Husserl and Jacques Derrida "the gallery of Dresden".

  14. Naturally-phasematched second harmonic generation in a whispering gallery mode resonator

    CERN Document Server

    Furst, J U; Elser, D; Lassen, M; Andersen, U L; Marquardt, C; Leuchs, G

    2009-01-01

    We demonstrate for the first time natural phase matching for optical frequency doubling in a high-Q whispering gallery mode resonator made of Lithium Niobate. A conversion efficiency of 9% is achieved at 30 micro Watt in-coupled continuous wave pump power. The observed saturation pump power of 3.2 mW is almost two orders of magnitude lower than the state-of-the-art. This suggests an application of our frequency doubler as a source of non-classical light requiring only a low-power pump, which easily can be quantum noise limited. Our theoretical analysis of the three-wave mixing in a whispering gallery mode resonator provides the relative conversion efficiencies for frequency doubling in various modes.

  15. Naturally Phase-Matched Second-Harmonic Generation in a Whispering-Gallery-Mode Resonator

    DEFF Research Database (Denmark)

    Fürst, J. U.; Strekalov, D.V.; Elser, D.;

    2010-01-01

    We demonstrate for the first time natural phase matching for optical frequency doubling in a high-Q whispering-gallery-mode resonator made of lithium niobate. A conversion efficiency of 9% is achieved at 30  μW in-coupled continuous wave pump power. The observed saturation pump power of 3.2 mW is...... almost 2 orders of magnitude lower than the state-of-the-art value. This suggests an application of our frequency doubler as a source of nonclassical light requiring only a low-power pump, which easily can be quantum noise limited. Our theoretical analysis of the three-wave mixing in a whispering-gallery-mode...

  16. Naturally Phase-Matched Second-Harmonic Generation in a Whispering-Gallery-Mode Resonator

    Science.gov (United States)

    Fürst, J. U.; Strekalov, D. V.; Elser, D.; Lassen, M.; Andersen, U. L.; Marquardt, C.; Leuchs, G.

    2010-04-01

    We demonstrate for the first time natural phase matching for optical frequency doubling in a high-Q whispering-gallery-mode resonator made of lithium niobate. A conversion efficiency of 9% is achieved at 30μW in-coupled continuous wave pump power. The observed saturation pump power of 3.2 mW is almost 2 orders of magnitude lower than the state-of-the-art value. This suggests an application of our frequency doubler as a source of nonclassical light requiring only a low-power pump, which easily can be quantum noise limited. Our theoretical analysis of the three-wave mixing in a whispering-gallery-mode resonator provides the relative conversion efficiencies for frequency doubling in various modes.

  17. Single molecules as whispering galleries for electrons

    Science.gov (United States)

    Reecht, G.; Bulou, H.; Schull, G.; Scheurer, F.

    2016-04-01

    Whispering gallery modes, well-known for acoustic and optical waves, have been shown recently for electrons in molecules on surfaces. The existence of such waves opens new possibilities for nanoelectronic devices. Here we propose a simple analytical textbook model which allows the main characteristic features of such electronic waves to be understood. The model is illustrated by two- and three-dimensional experimental situations.

  18. Microwave oscillator with 'whispering gallery' resonator

    International Nuclear Information System (INIS)

    It was presented researches of a generation of microwave radiation into system with azimuthally periodical relativistic electron beam current that excites a high-Q quasi-optical dielectric resonator. The Eigen parameters of cylindrical Teflon resonator were determined by numerical computation. Registration of the microwave radiation realizes by a crystal set of 8-mm wavelength range. Research projects of microwave oscillators with high-Q resonators, in which 'whispering gallery' oscillations are excited by an electron flow, are presented. Multiresonator oscillators ideology is based on principles of microwave generation in klystrons with both subcritical and supercritical electron beams currents.

  19. Art for All

    Directory of Open Access Journals (Sweden)

    Aksinja Kermauner

    2014-12-01

    Full Text Available The aim of spatial planning on the principles of “design for all” is to ensure that every individual, regardless of obstacle, can participate in the information society. It combines the principles of how as many people as possible could use products, services and systems without adjusting them. Why should we not transfer the concept of “design for all” also to other areas, such as the field of art? In this article we consider how a work of art, especially a two-dimensional one, could be adapted for blind or visually impaired visitors of a gallery or to a museum, and list what has already been done in this area. We also describe a textbook for teaching fine arts, adapted for blind and partially sighted students.

  20. The Art of Buddhism. A Teacher's Guide.

    Science.gov (United States)

    Forsgren, Krista; Benskin, Elizabeth

    While the art of Buddhism has an enduring tradition throughout Asia, this teaching guide focuses on the cultures of three countries in which the Smithsonian's Freer and Sackler Galleries' collections are particularly strong: India, China, and Japan. The guide identifies grade level appropriateness for some lessons and activities. It contains 15…

  1. Coral Reefs: A Gallery Program, Grades 7-12.

    Science.gov (United States)

    National Aquarium in Baltimore, MD. Dept. of Education.

    Gallery classes at the National Aquarium in Baltimore give the opportunity to study specific aquarium exhibits which demonstrate entire natural habitats. The coral reef gallery class features the gigantic western Atlantic coral reef (325,000 gallons) with over 1,000 fish. The exhibit simulates a typical Caribbean coral reef and nearby sandy…

  2. Exhibiting Western Desert Aboriginal painting in Australia’s public galleries: an institutional analysis, 1981-2002

    Directory of Open Access Journals (Sweden)

    Jim Berryman

    2012-12-01

    Full Text Available This paper documents and analyses the exhibition history of Aboriginal painting in Australia’s public art galleries over a two-decade period. It concentrates on Western Desert acrylics but is not confined to this movement or region alone. Based on a review of catalogues from key exhibitions, it identifies three interpretative frameworks used by curators to validate the presence of Aboriginal painting in the contemporary art realm. These modes of interpretation are called the aesthetic, ethnographic and the ownership discourses. Despite being a problematic art at odds with conventional art-historical classifications, Aboriginal painting was elevated to a position of prominence in Australian art history. Institutionally, Western Desert painting found legitimacy in the dominant aesthetic legacy of modernism. This modernist art historiography overrode the minority interests of cultural pluralism and critical postmodernism.

  3. De oorsprong van Art Nouveau - Het Bing imperium

    NARCIS (Netherlands)

    Weisberg, Gabriel P.; Becker, Edwin; Posseme, Evelyne

    2004-01-01

    The opening of Sigmund Bing's gallery L'Art Nouveau had been an eagerly expected event in the Paris art world throughout the latter half of 1895, since Bing first announced that he would be soon exhibiting artistic furniture. The doors finally opened on 26 December 1895 as visitors poured in at 22 R

  4. Sacred Circles: 2000 Years of North American Indian Art

    Science.gov (United States)

    Journal of American Indian Education, 1977

    1977-01-01

    "Sacred Circles" opened April 16, 1977 at the Nelson Gallery of Art-Atkins Museum of Fine Arts in Kansas City for its only showing in the Americas; the 850 objects on loan from 90 museums and private collectors included the "Adena Pipe" (considered the most important archaeological object found in the eastern US). (JC)

  5. Artistic Freedom under the Auspices of the Institution – the example of the Student Centre Gallery in the period between the end of the 1960s and the beginning of the 1970s

    Directory of Open Access Journals (Sweden)

    Marta Kis

    2013-12-01

    Full Text Available The author discusses the political and social context that made progressive and critical art practices possible in the communist Yugoslavia at the turbulent end of the 1960s concentrating on the example of Student Center and SC Gallery in Zagreb, one of the most important venues for the beginnings of conceptual art in Croatia.

  6. Promenade Among Words and Things: The Gallery as Catalogue, the Catalogue as Gallery

    Directory of Open Access Journals (Sweden)

    Mari Lending

    2015-12-01

    Full Text Available In the mid nineteenth century new casting techniques allowed for the production of huge architectural fragments. Well-selected collections could ideally display perfect series in galleries in which the visitor could wander among monuments and experience architecture history on full scale. The disembodied material of plaster was considered capable of embodying a number of modern historical taxonomies and aesthetical programs, most importantly chronology, comparison, style, and evolution. Veritable showcases of historicism, the casts could illustrate in spatial arrangements new conceptions on the history, contemporaneity and future of architecture. Plaster cast became a main medium in which to publish antiquities as novelties for grand audiences, taking the printed and published beyond the two-dimensional space of words and images. However, due to the increasing market of casts and their sheere size and weight, the reproductions as mounted in the galleries often behaved as unruly as architecture does outside curatorial control. In the end only the catalogues, the paper versions of these imaginary museums were capable to create the orders that their plaster referents constantly aspired to destroy. An important chapter in the history of the architecture museum these plaster monuments belong to a part of architectural print culture in which catalogues were curated and galleries edited. Metaphors drawn from the realm of writing saturated the discourse on the display of casts. Images and texts fluctuated and the image-objects were compared to books, paper, pages, documents and libraries but above all to illustrations inviting promenades in time and space.

  7. Aptasensors Based on Whispering Gallery Mode Resonators.

    Science.gov (United States)

    Nunzi Conti, Gualtiero; Berneschi, Simome; Soria, Silvia

    2016-01-01

    In this paper, we review the literature on optical evanescent field sensing in resonant cavities where aptamers are used as biochemical receptors. The combined advantages of highly sensitive whispering gallery mode resonator (WGMR)-based transducers, and of the unique properties of aptamers make this approach extremely interesting in the medical field, where there is a particularly high need for devices able to provide real time diagnosis for cancer, infectious diseases, or strokes. However, despite the superior performances of aptamers compared to antibodies and WGMR to other evanescent sensors, there is not much literature combining both types of receptors and transducers. Up to now, the WGMR that have been used are silica microspheres and silicon oxynitride (SiON) ring resonators. PMID:27438861

  8. Aptasensors Based on Whispering Gallery Mode Resonators

    Directory of Open Access Journals (Sweden)

    Gualtiero Nunzi Conti

    2016-07-01

    Full Text Available In this paper, we review the literature on optical evanescent field sensing in resonant cavities where aptamers are used as biochemical receptors. The combined advantages of highly sensitive whispering gallery mode resonator (WGMR-based transducers, and of the unique properties of aptamers make this approach extremely interesting in the medical field, where there is a particularly high need for devices able to provide real time diagnosis for cancer, infectious diseases, or strokes. However, despite the superior performances of aptamers compared to antibodies and WGMR to other evanescent sensors, there is not much literature combining both types of receptors and transducers. Up to now, the WGMR that have been used are silica microspheres and silicon oxynitride (SiON ring resonators.

  9. Artful creation

    DEFF Research Database (Denmark)

    Darsø, Lotte

    2013-01-01

    An introduction to the field of Arts-in-Business outlining 4 different approaches: 1) Art as decoration, 2) Art as intertainment, 3) Arts as instrumental, 4) Art as strategic......An introduction to the field of Arts-in-Business outlining 4 different approaches: 1) Art as decoration, 2) Art as intertainment, 3) Arts as instrumental, 4) Art as strategic...

  10. Reconfigurable Liquid Whispering Gallery Mode Microlasers

    Science.gov (United States)

    Yang, Shancheng; Ta, Van Duong; Wang, Yue; Chen, Rui; He, Tingchao; Demir, Hilmi Volkan; Sun, Handong

    2016-06-01

    Engineering photonic devices from liquid has been emerging as a fascinating research avenue. Reconfigurably tuning liquid optical micro-devices are highly desirable but remain extremely challenging because of the fluidic nature. In this article we demonstrate an all-liquid tunable whispering gallery mode microlaser floating on a liquid surface fabricated by using inkjet print technique. We show that the cavity resonance of such liquid lasers could be reconfigurably manipulated by surface tension alteration originated from the tiny concentration change of the surfactant in the supporting liquid. As such, remarkable sensing of water-soluble organic compounds with a sensitivity of free spectral range as high as 19.85 THz / (mol · mL‑1) and the detectivity limit around 5.56 × 10‑3 mol · mL‑1 is achieved. Our work provides not only a novel approach to effectively tuning a laser resonator but also new insight into potential applications in biological, chemical and environmental sensing.

  11. CFD analysis of heat collection in a glazed gallery

    Energy Technology Data Exchange (ETDEWEB)

    Suarez, Maria Jose; Gutierrez, Antonio Jose; Pistono, Jorge; Blanco, Eduardo [Universidad de Oviedo, EDZE (Energia), Campus de Viesques, 33271 Gijon, Asturias (Spain)

    2011-01-15

    A glazed gallery in most old buildings is a space located on the first floor (and/or higher floors), facing south and almost fully glazed. As a result of the large glazed area and the orientation of the gallery, its temperature is warmer than the exterior and, in cold weather, it is used both as a space to insulate the adjacent rooms and as a leisure area, among other applications. In the framework of the ARFRISOL project (Bioclimatic Architecture and Solar Cooling), a demonstration container has been constructed in northern Spain (Asturias) which includes, among other bioclimatic elements, a glazed gallery. This gallery is considered as an element of Bioclimatic Architecture that enables solar radiation to be collected and the energy obtained to be used to support the building's air conditioning system. It consists of a south-facing glazed exterior wall, an intermediate space or passage and a partially glazed interior wall. Dampers located in the floor and ceiling of the intermediate space and connected to the air ducts enable the air circulating inside the gallery to be heated or cooled, depending on the season of the year, before it is further conditioned and conveyed to the rooms. This paper focuses on the three-dimensional numerical simulation of the airflow inside the gallery. The aim is to obtain a model to evaluate the thermal energy obtained in this architectural feature, integrating the effect of certain variables, such as the incident solar irradiation, the outdoor temperature and the air flow rate circulating in the gallery. (author)

  12. Whispering-Gallery-Mode Tunable Narrow-Band-Pass Filter

    Science.gov (United States)

    Savchenkov, Anatoliy; Iltchenko, Vladimir; Matsko, Andrey; Maleki, Lute

    2004-01-01

    An experimental tunable, narrow-band-pass electro-optical filter is based on a whispering-gallery resonator. This device is a prototype of tunable filters needed for the further development of reconfigurable networking wavelength-division multiplexers and communication systems that utilize radio-frequency (more specifically, microwave) subcarrier signals on optical carrier signals. The characteristics of whispering-gallery resonators that make them attractive for such applications include high tuning speed, compactness, wide tuning range, low power consumption, and compatibility with single-mode optical fibers. In addition, relative to Fabry-Perot resonators, these devices offer advantages of greater robustness and lower cost. As described in several prior NASA Tech Briefs articles, a whispering-gallery resonator is a spheroidal, disk-like, or toroidal body made of a highly transparent material. It is so named because it is designed to exploit whispering-gallery electromagnetic modes, which are waveguide modes that propagate circumferentially and are concentrated in a narrow toroidal region centered on the equatorial plane and located near the outermost edge. The experimental whispering-gallery tunable filter (see figure) is made from a disk of Z-cut LiNbO3 of 4.8-mm diameter and 0.17-mm thickness. The perimeter of the disk is rounded to a radius of curvature of 100 m. Metal coats on the flat faces of the disk serve as electrodes for exploiting the electro-optical effect in LiNbO3 for tuning. There is no metal coat on the rounded perimeter region, where the whispering-gallery modes propagate. Light is coupled from an input optical fiber into the whispering-gallery modes by means of a diamond prism. Another diamond prism is used to couple light from the whispering-gallery modes to an output optical fiber. This device is designed and operated to exploit transverse magnetic (TM) whispering- gallery modes, rather than transverse electric (TE) modes because the

  13. CyberSpace: Adler's Computer-Based Gallery

    Science.gov (United States)

    Salgado, J.

    2002-05-01

    The Adler Planetarium & Astronomy Museum has recently opened its CyberSpace Gallery. This gallery is a radical departure from a typical museum exhibit space. It fuses all the potential that computer technology enables into one programmable museum gallery. In this entirely computer-based facility, content is flexibly updated and routed to various display/interactive stations in its three different spaces: the informal gallery, the classroom, and the distance learning studio. These spaces can be configured into individualized and theme-based exhibits, classrooms, and videoconferencing centers to host events that can be transmitted and/or received via high bandwidth internet connectivity. CyberSpace relies on more than seventy computers to drive all exhibit components, which includes 16 plasma displays, 16 computer stations, 4 immersive workstations, and 10 video projectors. All these components are used to present externally produced material as well as in-house content produced by professional staff astronomers and educators. In addition to its ``everyday" use as a multimedia gallery for museum visitors, CyberSpace has been used for teacher professional development, school field trip experiences, live demonstrations, presentations of NASA events, including launches and ISS-shuttle missions, and public astronomy classes.

  14. The art of the early Baroque: the painting

    Czech Academy of Sciences Publication Activity Database

    Dobalová, Sylva

    Prague : National Gallery, 2005 - (Vlnas, V.), s. 27-39 ISBN 80-7035-286-8 Institutional research plan: CEZ:AV0Z80330511 Keywords : catalogue * Baroque painting in Bohemia * Karel Škréta Subject RIV: AL - Art, Architecture, Cultural Heritage

  15. Main Street as Art Museum: Metaphor and Teaching Strategies

    Science.gov (United States)

    Vallance, Elizabeth

    2007-01-01

    A walk down Main Street can be very much like a stroll through a museum gallery--visually rich, inviting unexpected choices, aesthetically rewarding. This article explores the concept of shop windows as visually ordered compositions, much like paintings and other art objects, and suggests some approaches to applying this concept in teaching a…

  16. Quantum Light from a Whispering-Gallery-Mode Disk Resonator

    DEFF Research Database (Denmark)

    Fürst, J. U.; Strekalov, D. V.; Elser, D.; Aiello, A.; Andersen, Ulrik Lund; Marquardt, Ch.; Leuchs, G.

    2011-01-01

    direct observation of intensity squeezing of -1.2 dB of each of the individual parametric beams in parametric down-conversion by use of a high quality whispering-gallery-mode disk resonator. In addition, we observed twin-beam quantum correlations of -2.7 dB with this cavity. Such resonators feature...... strong optical confinement and offer tunable coupling to an external optical field. This work exemplifies the potential of crystalline whispering-gallery-mode resonators for the generation of quantum light. The simplicity of this device makes the application of quantum light in various fields highly...

  17. Ultra-high-Q tunable whispering-gallery-mode microresonator

    CERN Document Server

    Pöllinger, M; Warken, F; Rauschenbeutel, A

    2009-01-01

    Typical microresonators exhibit a large frequency spacing between resonances and a limited tunability. This impedes their use in a large class of applications which require a resonance of the microcavity to coincide with a predetermined frequency. Here, we experimentally overcome this limitation with highly prolate-shaped whispering-gallery-mode "bottle microresonators" fabricated from standard optical glass fibers. Our resonators combine an ultra-high quality factor of 360 million, a small mode volume, and near lossless fibre coupling, characteristic of whispering-gallery-mode resonators, with a simple and customizable mode structure enabling full tunability.

  18. Multiplicity and Self-Identity: Trauma and Integration in Shirley Mason's Art

    Science.gov (United States)

    Thompson, Geoffrey

    2011-01-01

    This viewpoint appeared in its original form as the catalogue essay that accompanied the exhibition "Multiplicity and Self-Identity: Trauma and Integration in Shirley Mason's Art," curated by the author for Gallery 2110, Sacramento, CA, and the 2010 Annual Conference of the American Art Therapy Association. The exhibition featured 17 artworks by…

  19. University in the Art Museum: A Model for Museum-Faculty Collaboration

    Science.gov (United States)

    Villeneuve, Pat; Martin-Harmon, Amanda; Mitchell, Kristina E.

    2006-01-01

    Professor Barb Woods observes her students working diligently in the Spencer Museum of Art galleries. As the 3-hour session progresses, the students increase their observational skills as they examine works of art that depict the relationship of healthcare and society and illustrate how views of doctors and pharmacists have changed over time. The…

  20. Women’s Art and Women Artists in Cultural Change

    Institute of Scientific and Technical Information of China (English)

    1998-01-01

    ON March 3rd, 1998, an exhibition titled "Century · Women" drew up its curtain at the China Arts Gallery in Beijing, and attracted a vast number of visitors with its large scale, historical overview, and representation of a great number of painters with various styles. While people strolled in the gallery, a lively forum on the topic of "Visual Angle of Gender: Women’s Arts and Women Artists in Cultural Change" was also taking place in Beijing. The purpose of the forum was to corroborate the academic value of the exhibition, as well as to analyze the cultural significance of women’s art through the exploration of the history and present situation of Chinese women’s art, Over 30 scholars and artists presented speeches on the topic; the audience numbered in the hundreds.

  1. Arte precolombino, arte moderno y arte latinoamericano

    OpenAIRE

    Gamboa Hinestrosa, Pablo

    2014-01-01

    ¿Cuál es la vigencia del arte precolombino? ¿Qué ha aportado ala corriente del arte universal? ¿Qué se deben mutuamente arte modernoy arte precolombino? Estos planteamientos nos sirven para establecerla vigencia del arte precolombino en Latinoamérica, buscandoantecedentes desde los tiempos de la Conquista hasta nuestros días.

  2. Developments in Access to Art Information (Part 2): Trove

    OpenAIRE

    Holley, Rose

    2010-01-01

    The presentation looks at developments in online access to Art Information over the last 10 years. The first presentation with the same title was given to the ARLIS conference in 2002. This presentation draws on the 2002 vision and demonstrates how the vision is now possible with the creation of the 'Trove' discovery service. It looks in detail at how art galleries and museums can join Trove and make their collections more widely accessible online.

  3. Nonlinear mode coupling in whispering-gallery-mode resonators

    CERN Document Server

    D'Aguanno, Giuseppe

    2016-01-01

    We present a first principle derivation of the coupled nonlinear Schr\\"{o}dinger equations that govern the interaction between two families of modes with different transverse profiles in a generic whispering-gallery-mode resonator. We find regions of modulational instability and the existence of trains of bright solitons both in the normal and in the anomalous dispersion regime.

  4. Temperature measurement and stabilization in a birefringent whispering gallery resonator

    OpenAIRE

    Strekalov, D. V.; Thompson, R.J.; Baumgartel, L. M.; Grudinin, I. S.; Yu, N

    2011-01-01

    Temperature measurement with nano-Kelvin resolution is demonstrated at room temperature, based on the thermal dependence of an optical crystal anisotropy in a high quality whispering gallery resonator. As the resonator's TE and TM modes frequencies have different temperature coefficients, their differential shift provides a sensitive measurement of the temperature variation, which is used for active stabilization of the temperature.

  5. Virginia Tech's Perspective Gallery exhibits Manierre Dawson: Engineer/Artist

    OpenAIRE

    Broughton, Sandra S.

    2009-01-01

    The first American artist to paint an abstract painting was a civil engineer, and an upcoming exhibition at the Perspective Gallery in Squires Student Center demonstrates that Manierre Dawson's profession was not a deterrent to his creativity but rather his primary source of inspiration.

  6. Thermal simulation of storage in TSS-Galleries

    International Nuclear Information System (INIS)

    This report describes the experiment ''thermal simulation of storage in TSS-galleries'' what is been developed in salt mine of Asse, Germany. The report has 3 part: 1) Analysis of objectives and general description of boundary layers. 2) Geomechanics parameters of salt mine. 3) Thermal modelization, thermomechanics modelization and data acquisition

  7. Nonlinear mode coupling in whispering-gallery-mode resonators

    Science.gov (United States)

    D'Aguanno, Giuseppe; Menyuk, Curtis R.

    2016-04-01

    We present a first-principles derivation of the coupled nonlinear Schrödinger equations that govern the interaction between two families of modes with different transverse profiles in a generic whispering-gallery-mode resonator. We find regions of modulational instability and the existence of trains of bright solitons in both the normal and the anomalous dispersion regime.

  8. About Art

    OpenAIRE

    Blich, Baruch

    2001-01-01

    In his article, "About Art," Baruch Blich investigates why is art -- and especially modern art -- so difficult to understand? Why do art objects raise questions as to their status? Why scrutinizing art involves semiotics, philosophy of language, linguistics, epistemology, ontology, and even metaphysics? Why art is interpreted by psychoanalysis as well as by behaviorism and psychology of perception? What anthropology and sociology have to do with art and why do we witness art debated in the co...

  9. Feast : Radical Hospitality in Contemporary Art

    OpenAIRE

    Lemoult, Marion

    2014-01-01

    Le catalogue prolonge l’exposition itinérante Feast: Radical Hospitality in Contemporary Art,initiée et présentée par le Smart Museum of Art (Chicago). Présentée en 2012, elle a depuis voyagé au Blaffer Art Museum (Houston), au SITE (Santa Fe) et poursuivra sa route jusqu’en 2015 à la Gund Gallery (Gambier) et au Weisman Art Museum (Minneapolis). Dans une mise en perspective historique, l’ouvrage, introduit par Stephanie Smith (p. 12-21), restitue les œuvres présentées et les actions expérime...

  10. Fing Art fair (c)eld in september

    Institute of Scientific and Technical Information of China (English)

    Guo Yan

    2011-01-01

    The Art Beijing 2011 · Fine Art Fair was held at the National Agricultural Exhibition Center in Beijing from September 15 to 18,2011.Bringing together over 40 galleries and art institutions,this year's Fine Art Beijing offers a strong lineup.It presented an extraordinary exhibition of both classical and modem art from West and East.Compared with previous fairs,the exhibits at the Fine Art Beijing 2011 are richer in form and more diversified in style.Attending the fair,you would be able to travel from the ancient pastto the contemporary art world,enjoying classical Western paintings,modem Chinese paintings,modem and contemporary oil paintings,Japanese paintings,and Russian oil paintings,all of which havehad an enormous impact on contemporary Chinese art.

  11. Art Imitating Art

    Directory of Open Access Journals (Sweden)

    Eric Brook

    2008-01-01

    Full Text Available Using as a contextual reference my experience of seeing the original and copy of Michelangelo's David in Florence, I briefly introduce how the Platonic legacy has affected that discourse. The Western preference in art and aesthetics is typically in favor of the original over the copy, despite whatever indiscernibility may exist between them. Since Arthur Danto has treated this phenomenon in his text The Transfiguration of the Commonplace, his relevant comments are considered and adapted for the purpose of working through how one understands the relationship between the original and copy in terms of a criterion for defining art.

  12. Hole emitter whispering galleries of photonic quantum ring

    CERN Document Server

    Kwon, O; an, S J; Kim, D K; Lee, S E; Bae, J; Yoon, J H; Park, B H; Kim, J; Ahn, J; Park, S; Kwon, Odae

    2005-01-01

    We report on the first observation of hole whispering gallery lasers from semiconductor microcavities with three dimensional optical confinement, with thresholds potentially reducible to micro-to-nano ampere regimes according to a quadratic size-dependent reduction, due to ideal quantum wire properties of the naturally formed photonic quantum rings before imminent recombination in a dynamic steady state fashion. If the device size grows over a critical diameter, the quantum ring whispering gallery then begins to disappear. However, cooperative small hole arrays like 256x256 quantum ring emitters avoid the criticality and open a possibility of constructing practical dense electro-pumped micro-to-nano watt emitter arrays, amenable to mega-to-giga ring emitter chip development via present fabrication techniques.

  13. What Can the Habitable Zone Gallery Do For You?

    Science.gov (United States)

    Gelino, Dawn M.; Kane, Stephen

    2015-12-01

    The Habitable Zone Gallery (www.hzgallery.org) came online in August 2011 as a service to the exoplanet community that provides Habitable Zone (HZ) information for each of the exoplanetary systems with known planetary orbital parameters. The service includes a sortable table, a plot with the period and eccentricity of each of the planets with respect to their time spent in the HZ, a gallery of known systems which plot the orbits and the location of the HZ with respect to those orbits, and orbital movies. Recently, we have added new features including: implementation of both conservative and optimistic HZs, more user-friendly table and movies, movies for circumbinary planets, and a count of planets whose orbits lie entirely within the system's HZ. Here we discuss various educational and scientific applications of the site such as target selection, exploring planets with eccentric or circumbinary orbits, and investigating habitability.

  14. Low-Q whispering gallery modes in anisotropic metamaterial shells

    CERN Document Server

    Díaz-Rubio, Ana; Torrent, Daniel; Sánchez-Dehesa, José

    2013-01-01

    Anisotropic and inhomogeneous metamaterial shells are studied in order to exploit all their resonant mode richness. These multilayer structures are based on a cylindrical distribution of radially dependent constitutive parameters including an inner void cavity. Shell, cavity and whispering gallery modes are characterized, and special attention is paid to the latter ones. The whispering gallery modes are created at the boundary layers of the shell with the background and energy localization is produced with highly radiative characteristics. These low-Q resonant states have frequencies that are independent of the shell thickness. However, their quality factors can be controlled by the number of layers forming the shell, which allows confining electromagnetic waves at the interface layers (internal or external), and make them suitable for the harvesting of electromagnetic energy.

  15. Back-scatter based whispering gallery mode sensing

    CERN Document Server

    Knittel, Joachim; McAuslan, David L; Brawley, George A; Bowen, Warwick P

    2013-01-01

    Whispering gallery mode biosensors allow selective unlabelled detection of single proteins and, combined with quantum limited sensitivity, the possibility for noninvasive realtime observation of motor molecule motion. However, to date technical noise sources, most particularly low frequency laser noise, have constrained such applications. Here we introduce a new technique for whispering gallery mode sensing based on direct detection of back-scattered light. This experimentally straightforward technique is immune to frequency noise in principle, and further, acts to suppress thermorefractive noise. We demonstrate 27 dB of frequency noise suppression, eliminating frequency noise as a source of sensitivity degradation and allowing an absolute frequency shift sensitivity of 76 kHz. Our results open a new pathway towards single molecule biophysics experiments and ultrasensitive biosensors.

  16. When a Body Meets a Body: An Exploration of the Negative Impact of Social Interactions on Museum Experiences of Art

    Science.gov (United States)

    Pelowski, Matthew; Liu, Tao; Palacios, Victor; Akiba, Fuminori

    2014-01-01

    We consider the phenomenon of social interactions within the art museum, arguing that even the bare possibility of meeting others or intruding into their gaze can have a profoundly detrimental effect on art experience. This is done by tracing a finding from our previous studies in which we considered three museum galleries--each with the same…

  17. ANOUSH ABRAR & AIMéE HOVING -WE'RE HEADING FOR ARTS%要走到艺术

    Institute of Scientific and Technical Information of China (English)

    草雉

    2007-01-01

    @@ "We want to be creative, innovative, that our fashion pictures can be interpreted as art, and that art can be interpreted as fashion. When one of our fashion pictures is exposed in a gallery we feel that we have accomplished what we are looking for."

  18. Analysis of whispering-gallery superconducting dielectric resonator modes

    International Nuclear Information System (INIS)

    Whispering-gallery superconducting dielectric resonator modes have been studied. In this paper a method for the determination of the resonant frequencies and the maximum quality factor of the WG modes of the cylindrical SDR is presented. Calculated results show that the mode energy confined between the caustic cylindrical DR boundary occurred; only the diameter ratio of the shielding cylinder and dielectric rod was properly arranged. A phenomenology explanation is given

  19. Phone-sized whispering-gallery microresonator sensing system

    CERN Document Server

    Xu, Xiangyi; Zhao, Guangming; Yang, Lan

    2016-01-01

    We develop a compact whispering-gallery-mode (WGM) sensing system by integrating multiple components, including a tunable laser, a temperature controller, a function generator, an oscilloscope, a photodiode detector, and a testing computer, into a phone-sized embedded system. We demonstrate a thermal sensing experiment by using this portable system. Such a system successfully eliminates bulky measurement equipment required for characterizing optical resonators and will open up new avenues for practical sensing applications by using ultra-high Q WGM resonators.

  20. Microwave photonics systems based on whispering-gallery-mode resonators

    OpenAIRE

    Coillet, Aurélien; Henriet, Rémi; Phan Huy, Kien; Jacquot, Maxime; Furfaro, Luca; Balakireva, Irina; Larger, Laurent; Chembo, Yanne K.

    2013-01-01

    Microwave photonics systems rely fundamentally on the interaction between microwave and optical signals. These systems are extremely promising for various areas of technology and applied science, such as aerospace and communication engineering, sensing, metrology, nonlinear photonics, and quantum optics. In this article, we present the principal techniques used in our lab to build microwave photonics systems based on ultra-high Q whispering gallery mode resonators. First detailed in this arti...

  1. Resonant frequencies of whispering gallery modes of dielectric resonator

    OpenAIRE

    S.L. Badnilcar; N.Shanmugam; V. R. K. Murthy

    2001-01-01

    The modal spectrum of the whispering gallery modes of dielectric resonator depends mainly on its physical dimensions, dielectric constant, and to a lesser extent, on the environment. This paper carries investigation of the resonant frequencies in dielectric disc utilising the ring resonator model. Results of the structural design parameters are used to generate a nume!ical expression for describing the operational frequencies useful for computer-aided design applications. Theoretical ...

  2. Excitation mapping of whispering gallery modes in silica microcavities

    CERN Document Server

    Lin, Guoping; Orucevic, Fedja; Candela, Yves; Jager, Jean-Baptiste; Cai, Zhiping; Lefèvre-Seguin, Valérie; Hare, Jean

    2009-01-01

    We report the direct observation of the electromagnetic-field distribution of whispering?gallery modes in silica microcavities (spheres and toroids). It is revealed by their excitation efficiency with a tapered fiber coupler swept along the meridian. The originality of this method lies in the use of the coupler itself for the near field mapping, eliminating the need of additional tools used in previous work. This method is successfully applied to microspheres and microtoroids

  3. Broadband second harmonic generation in whispering gallery mode resonators

    OpenAIRE

    Lin, Guoping; Fürst, Josef U.; Strekalov, Dmitry V.; Yu, Nan

    2013-01-01

    Optical frequency conversion processes in nonlinear materials are limited in wavelength by the accessible phase matching and the required high pump powers. In this letter, we report a novel broadband phase matching (PM) technique in high quality factor (Q) whispering gallery mode (WGM) resonators made of birefringent crystalline materials. This technique relies on two interacting WGMs, one with constant and the other with spatially oscillating phase velocity. Thus, phase matching occurs cycli...

  4. A gallery approach for off-angle iris recognition

    Science.gov (United States)

    Karakaya, Mahmut; Yoldash, Rashiduddin; Boehnen, Christopher

    2015-05-01

    It has been proven that hamming distance score between frontal and off-angle iris images of same eye differs in iris recognition system. The distinction of hamming distance score is caused by many factors such as image acquisition angle, occlusion, pupil dilation, and limbus effect. In this paper, we first study the effect of the angle variations between iris plane and the image acquisition systems. We present how hamming distance changes for different off-angle iris images even if they are coming from the same iris. We observe that increment in acquisition angle of compared iris images causes the increment in hamming distance. Second, we propose a new technique in off-angle iris recognition system that includes creating a gallery of different off-angle iris images (such as, 0, 10, 20, 30, 40, and 50 degrees) and comparing each probe image with these gallery images. We will show the accuracy of the gallery approach for off-angle iris recognition.

  5. Nonlinear interaction of a whispering gallery mode with surface waves in a cylindrical plasma resonator

    International Nuclear Information System (INIS)

    Nonlinear interaction is considered between a low-frequency whispering gallery mode and higher-frequency surface waves in a cylindrical plasma-filled cavity. It is shown that the steady-state intensity distribution of the whispering gallery and surface wave modes can depend on the azimuthal angle phi only for a specified cavity radius, and the maximum amplitudes of the whispering gallery mode must also lie in a discrete set. The decay of an intense whispering gallery mode of constant amplitude into two oppositely moving surface electromagnetic waves is discussed, and expressions are derived for the decay rate and threshold

  6. El street art y la paradoja de la industria cultural

    OpenAIRE

    Barragán, Rosana

    2013-01-01

    El escrito aborda el street art, en particular los esténcils, las pegatinas y los stickers, a partir de tres casos puntuales: la exposición de esténcils de xoooox en el Circleculture Gallery (Berlín, 2008); la exposición Mayday, de Shepard Fairey, en Deitch Projects (New York City, 2010), y la obra Habladurías, de Rö Barragán, expuesta en el Teatro Argentino y en la Galería de Arte Vincent de la ciudad de La Plata. Desde estos ejemplos, el artículo reflexiona sobre el modo en que la indust...

  7. A contribution to film coefficient estimation in piston cooling galleries

    Energy Technology Data Exchange (ETDEWEB)

    Torregrosa, A.J.; Broatch, A.; Olmeda, P.; Martin, J. [CMT-Motores Termicos, Universidad Politecnica de Valencia, Aptdo. 22012, E-46071 Valencia (Spain)

    2010-02-15

    The need to reduce fuel consumption and exhaust emissions in internal combustion engines has been drastically increased during last years. One of the most important processes affecting these parameters is heat transfer from the in-cylinder gas to the surrounding walls, as this mechanism has a direct influence on the combustion process. Regarding the different walls (liner, cylinder head and piston surfaces), heat flow to the piston is especially important, as it is essential to avoid excessively high temperatures that could result in material damage and/or oil cracking. With this purpose different cooling strategies are used, among which the improvement of the piston cooling system by using oil galleries is preferred. In this work, the heat flow through the oil gallery in a Diesel piston was investigated on a dedicated test bench. This bench consists of a controlled heat source and a piston oil cooling system in which different test conditions were evaluated in order to obtain a correlation for the film coefficient associated with piston oil cooling. These experimental results were then incorporated into a lumped model for engine heat transfer. Finally, in order to evaluate the accuracy of this model and the effects of the correlation for oil gallery coefficient on engine heat flows, results obtained on a conventional engine test bench equipped with a Diesel engine, in which two piston temperatures had been measured, were used. The results show an improvement in piston temperature predictions when compared with those obtained using a previously reported expression for the calculation of the oil film coefficient. (author)

  8. Opto-acoustic phenomena in whispering gallery mode resonators

    Science.gov (United States)

    Lin, Guoping; Chembo, Yanne K.

    2016-01-01

    Optical whispering gallery mode resonators are important platforms to enhance and study various nonlinear frequency conversion processes. Stimulated Brillouin scattering is one of the strongest nonlinear effects, and can be successfully investigated using these platforms. In this article, we study the phenomenon of stimulated Brillouin scattering using a crystalline disk resonator. A fast scanning ringdown spectroscopy technique is used to characterize the optical modes featuring quality factors of the order of one billion at telecom wavelengths. The mW scale threshold power in a centimeter disk resonator is observed and found to be strongly dependent on the gap between the resonator and the prism coupler.

  9. Analysis of whispering-gallery superconducting dielectric resonator modes

    International Nuclear Information System (INIS)

    The whispering-gallery (WG) modes of a superconducting dielectric resonator (SDR) based on a sapphire cylindrical dielectric resonator and a YBa2Cu3O7-δ shielding cylinder were studied. A method for the determination of the resonant frequencies and the maximum quality factor of such modes is presented. Calculations have shown that most of the mode energy could be confined between the caustic surface of the WG modes provided the dimensions of the SDR are properly selected, and a magnitude of 109 for Q of the SDR could be estimated. A phenomenal explanation is given to account for such outstanding microwave behavior

  10. The Church Gallery Restaurant Handel's Set Dinner Menu

    OpenAIRE

    The Church Cafe, Bar, Restaurant and Club

    2014-01-01

    History: The former St. Mary’s Church of Ireland is one of the earliest examples of a galleried church in Dublin.Built at the beginning of the 18th century, it boasts many outstanding features, such as the Renatus Harris built organ and spectacular stained glass window. St. Mary’s closed in 1964 and lay derelict for a number of years until it was purchased by John Keating in 1997. Following extensive restoration over a seven year period, this List 1 building finally re-opened its doors in ...

  11. Second-harmonic generation using tailored whispering gallery modes

    International Nuclear Information System (INIS)

    It has been shown that whispering gallery modes can be used to obtain a combination of modal and geometrical quasi-phase-matching in second-harmonic generation. This could be achieved in isotropic, nonferroelectric, strongly dispersive and highly nonlinear materials such as III-V semiconductors. Unfortunately the poor overlap between the second-harmonic field and second order nonlinear polarization limits the conversion efficiency. In this paper we show that by engineering the refractive index it is possible to increase field overlap and to enhance effective second order nonlinear polarization of semiconductor microdisks

  12. Modelling and instrumentation programme of the connecting gallery

    International Nuclear Information System (INIS)

    This contribution to the annual report describes the CLIPEX experiment, which is a R and D programme to characterise the hydro-mechanical behaviour of the Boom Clay formation and the excavation Disturbed Zone during the excavation phase of the connecting gallery. Instrumentation was installed in situ in order to monitor the hydro-mechanical parameters ahead of the excavation front, which was realised with a tunnel boring machine. This enabled comparison of the in situ measurements with the blind prediction performed earlier. This type of exercise is important to test capabilities to predict the behaviour of the host rock as part of confidence building

  13. Optical sum-frequency generation in whispering gallery mode resonators

    CERN Document Server

    Strekalov, Dmitry V; Huang, Yu-Ping; Kumar, Prem

    2013-01-01

    We demonstrate sum-frequency generation in a nonlinear whispering gallery mode resonator between a telecom wavelength and the Rb D2 line, achieved through natural phase matching. Due to the strong optical field confinement and ultra high Q of the cavity, we achieve a 1000-fold enhancement in the conversion efficiency compared to existing waveguide-based devices. The experimental data are in agreement with the nonlinear dynamics and phase matching theory in the spherical geometry employed. The experimental and theoretical results point to a new platform to manipulate the color and quantum states of light waves toward applications such as atomic memory based quantum networking and logic operations with optical signals.

  14. Contemporary art and compulsory elective contents

    Directory of Open Access Journals (Sweden)

    Metoda Kemperl

    2013-06-01

    Full Text Available Contemporary art differs from modern art, which preceded it, in that it strives for a return to society and everyday life, while concerning itself with current issues that the individual faces in the here and now. One of contemporary art’s more common topics is sustainable development, along with the accompanying issues of environment, values, relation to others, etc. All of these topics are simultaneously part of the concept of active citizenship, which is why understanding contemporary art calls for active citizenship. This is particularly true of relational art, which demands the viewer’s active participation. A link between contemporary art and elective high school subjects or topics can be achieved by means of intensive inter-institutional linking of schools and galleries and museums that exhibit contemporary art.Using three examples of participatory practices (Proletarians of All Countries, Beggar Robot and EU/Others, this paper points to potential cross-curricular links in terms of subject matter. It draws attention to the fact that, from an often-overlooked pedagogical perspective, we experience contemporary art in the here and now; it also points out that the post-structural approaches are most conducive to the appreciation of contemporary art.

  15. Directly mapping whispering gallery modes in a microsphere through modal coupling and directional emission

    Institute of Scientific and Technical Information of China (English)

    Chunhua Dong; Yunfeng Xiao; Yong Yang; Zhengfu Han; Guangcan Guo; Lan Yang

    2008-01-01

    @@ We fabricate slightly deformed fused-silica microspheres in which whispering gallery modes possess remarkably directional escape emission from the microsphere boundary. With efficient flee-space excitation and collection, the lateral spatial distribution of whispering gallery modes with different azimuthal mode numbers, rn, is directly observed through modal coupling and directional emission. Excellent agreement with theory is obtained.

  16. Whispering gallery modes in a spherical microcavity with a photoluminescent shell

    Energy Technology Data Exchange (ETDEWEB)

    Grudinkin, S. A., E-mail: grudink@gvg.ioffe.ru; Dontsov, A. A.; Feoktistov, N. A. [Russian Academy of Sciences, Ioffe Physical–Technical Institute (Russian Federation); Baranov, M. A.; Bogdanov, K. V. [ITMO University (Russian Federation); Averkiev, N. S.; Golubev, V. G. [Russian Academy of Sciences, Ioffe Physical–Technical Institute (Russian Federation)

    2015-10-15

    Whispering-gallery mode spectra in optical microcavities based on spherical silica particles coated with a thin photoluminescent shell of hydrogenated amorphous silicon carbide are studied. The spectral positions of the whispering-gallery modes for spherical microcavities with a shell are calculated. The dependence of the spectral distance between the TE and TM modes on the shell thickness is examined.

  17. Download: Postcards Home Contemporary Art and New Technology in the Primary School

    Science.gov (United States)

    Herne, Steve

    2005-01-01

    Postcards Home using photography, scanning, digital image manipulation, text and colour printing was the third Download project devised by the education department of the Whitechapel Art Gallery, London, England. It was led by artist Laurie Long with teachers and pupils from Pooles Park primary school in Islington, an inner city borough in North…

  18. Beyond the Museum Walls : Situating Art in Virtual Space (Polemic Overlay and Three Movements

    Directory of Open Access Journals (Sweden)

    Vince Dziekan

    2005-01-01

    Full Text Available In recognition of digital communication’s profound effects on social relations and institutions, this paper explores the influence of digitisation on our notions of art through the design of its institutions. No longer can the museum, as the primary technology of art, be viewed as just a physical container. With the additional of the hidden infrastructure of electronic and multimedia technologies that are to be found “behind the walls”, as it were, the architectural issues of negotiating spaces and manipulating locative settings for displaying artworks are as much virtual as physical.As a contribution to the negotiation of a distributed aesthetics, this paper entertains the possibility that transplanting art to the virtual site of the Internet disrupts our understanding of art itself. From presence on the gallery wall to the plane of the screen, if this translation offers an alternative way of seeing, then what does the Web offer to a different apperception of art? How to position the digital in the discourse surrounding art and the role it plays within contemporary cultural practice?In an attempt to ground these concerns, I will frame the subsequent discussion by focussing my attention upon one particularly representative instance: The National Gallery of Victoria’s Ian Potter Gallery of Australian Art; recognising in this localised, site-specific experience a microexample of a much more ubiquitous phenomenon.

  19. Car Art.

    Science.gov (United States)

    Meilach, Dona Z.

    2002-01-01

    Discusses car art and its appeal to boys and girls. Describes the popularity of customizing cars, focusing on this as a future career for students. Includes a list of project ideas that focuses on car art. (CMK)

  20. Street art

    OpenAIRE

    Mulcahy, Linda

    2014-01-01

    This film considers what collectors lose when they take street art away from the street. More generally, it looks at the challenges posed by street art and the way it encourages us to reclaim our city.

  1. Organisational Art

    DEFF Research Database (Denmark)

    Ferro-Thomsen, Martin

    the boundaries of the art institution ? and thereby expanding it without suspending it. The thesis takes its historical outset with ?Artist Placement Group? (formed in 1966), a British art group that developed an unprecedented framework for placing artists in organisational environments to circumvent......University of Copenhagen / Learning Lab Denmark. 2005 Kort beskrivelse: Organisational Art is a tentative title for an art form that works together with organisations to produce art. This is most often done together with non-artist members of the organisation and on-site in their social context. OA...... is characterised as socially engaged, conceptual, discursive, site-specific and contextual. Abstract: This investigation is about Organisational Art (OA), which is a tentative title for an art form that works together with organisations (companies, institutions, communities, governments and NGOs) to produce art...

  2. Virtual gallery of ancient coins through conoscopic holography

    Science.gov (United States)

    Schirripa Spagnolo, Giuseppe; Majo, Raffaele; Carli, Marco; Ambrosini, Dario; Paoletti, Domenica

    2003-10-01

    Physical access to historic and artistic manufactures can be limited by a lot of factors. In particular, the access to the collection of the ancient coins is difficult, especially for students. Indeed, for coins digital archive of high quality three-dimensional model and remote fruition is of great interest. In this work we propose 3D acquisition and digitizing techniques for the virtualized reality of ancient coins (virtual gallery). The system used for creating 3D shape of coins is based on conoscopic holography. This technique is a non-contact three-dimensional measuring technique that makes possible to produce holograms, even with incoherent light, with fringe periods that can be measured precisely to determine the exact distance to the point measured. It is suitable to obtain 3D profile with high resolution also on surface with unevenness reflectivity (this situation is usual on the surface of the ancient coins). By conoscopic holography, high-resolution 3D model can be obtained. However, accurate representation and high-quality display are fundamental requirements to avoid misinterpretation of the data. Therefore, virtual galleries can be obtained through a procedure involving 3D acquisition, 3D model and visualization. In conclusion, we propose an optoelectronic application, integrated with multimedia techniques, in order to improve the access to collection of ancient coins belonging to museums or privates.

  3. Influence of whispering gallery modes (WGMs) on energy transfer

    International Nuclear Information System (INIS)

    Graphical abstract: Even though the decay rate of the pure donor remains unchanged, the efficiency of excitation energy transfer due to the dipole-dipole interaction is enhanced by a factor of 2 in smaller microcavities as compared to that of the bulk. The increase in the overlap integral due to the whispering gallery modes (WGMs) and decrease in the inter-molecular distance are found to be the responsible for this enhancement. Highlights: → Foerster resonance energy transfer (FRET) studied in single microcavities. → Overlap integral is larger in the smaller microcavity than in the bulk. → Efficiency of the FRET is enhanced by a factor of 2 in smaller microcavity. → FRET rate is thousand times larger in single microcavities. - Abstract: In single microcavities of diameter varying from 18 μm to 4 μm, fluorescence decay profiles of the donor follow the Foerster resonance energy transfer (FRET) mechanism at high acceptor concentrations. Even though the decay rate of the pure donor remains unchanged, the efficiency of FRET is enhanced by a factor of two in smaller microcavities (diameter ∼4 μm) as compared to that of the bulk. The observed FRET rate is found to be 103 times larger than the radiative energy transfer rate for low Q-microcavities. Increase in the overlap integral due to whispering gallery modes (WGMs) of the microcavity accompanied by the decrease of inter-molecular distance gives rise to the observed enhancement.

  4. All-polymer photonic sensing platform based on whispering-gallery mode microgoblet lasers.

    Science.gov (United States)

    Wienhold, T; Kraemmer, S; Wondimu, S F; Siegle, T; Bog, U; Weinzierl, U; Schmidt, S; Becker, H; Kalt, H; Mappes, T; Koeber, S; Koos, C

    2015-09-21

    We present an all-polymer photonic sensing platform based on whispering-gallery mode microgoblet lasers integrated into a microfluidic chip. The chip is entirely made from polymers, enabling the use of the devices as low-cost disposables. The microgoblet cavities feature quality factors exceeding 10(5) and are fabricated from poly(methyl methacrylate) (PMMA) using spin-coating, mask-based optical lithography, wet chemical etching, and thermal reflow. In contrast to silica-based microtoroid resonators, this approach replaces technically demanding vacuum-based dry etching and serial laser-based reflow techniques by solution-based processing and parallel thermal reflow. This enables scaling to large-area substrates, and hence significantly reduces device costs. Moreover, the resonators can be fabricated on arbitrary substrate materials, e.g., on transparent and flexible polymer foils. Doping the microgoblets with the organic dye pyrromethene 597 transforms the passive resonators into lasers. Devices have lasing thresholds below 0.6 nJ per pulse and can be efficiently pumped via free-space optics using a compact and low-cost green laser diode. We demonstrate that arrays of microgoblet lasers can be readily integrated into a state-of-the-art microfluidic chip replicated via injection moulding. In a proof-of-principle experiment, we show the viability of the lab-on-a-chip via refractometric sensing, demonstrating a bulk refractive index sensitivity (BRIS) of 10.56 nm per refractive index unit. PMID:26266577

  5. Earth Resources Observation and Science (EROS) Center's Earth as Art Image Gallery 2

    Data.gov (United States)

    National Aeronautics and Space Administration — The Earth Resources Observation and Science (EROS) Center manages this collection of forty-five new scenes developed for their aesthetic beauty, rather than for...

  6. Aaron Douglas and Hale Woodruff: African American Art Education, Gallery Work, and Expanded Pedagogy

    Science.gov (United States)

    Bey, Sharif

    2011-01-01

    This analysis of archival materials discovered at Fisk and Atlanta Universities examines the teaching careers of Aaron Douglas and Hale Woodruff, two African American artists who came to prominence during the New Negro Movement in the 1920s and taught at historically Black universities in the 1930s and 1940s. These artists had a profound influence…

  7. Images, Objects + Symbols: An exhibit at the Armory Gallery

    OpenAIRE

    Chadwick, Heather Riley

    2008-01-01

    Images, Objects + Symbols, a collaborative exhibition at the Art Armory presented by the School of Visual Arts in the College of Architecture and Urban Studies, features the artistry of Joanna and Donald Sunshine through Saturday, April 26.

  8. How to use The National Gallery as a cross curricular approach to weather and climate studies at primary level.

    Science.gov (United States)

    Hansen, P. J. K.

    2009-09-01

    How to use The National Gallery as a cross curricular approach to weather and climate studies at primary level. Pål J. Kirkeby Hansen Faculty of Education and International Studies, Oslo University College (PalKirkeby.Hansen@lui.hio.no) Weather and climate are topics in natural science and geography in primary and secondary education in most countries. The pupils are often doing own weather observations and measurements and are presenting the results oral, by posters or with digital aids. They also use the Internet with all its relevant resources in their studies to develop vocabulary, practical and conceptual knowledge. Knowledge about weather and climate is parts of liberal education and could be projected to other topics in science and to topics in other subjects, for instance: history, social geography, literature and arts. This article reports from a case study in grade 3 classes (age 9 year) during their Weather Week. Their science teacher was, quite untypical, also educated in art history. She arranged a visited to The National Gallery with the double agenda: 1. To introduce the pupils to Norwegian canon paintings from the national romantic period, our so-called "golden age”. 2. To look for and discuss weather elements in this paintings. For one hour the museum curator guided the pupils around the water cycle by using the paintings. While the pupils' own observations of weather, clouds and wind and measurements of temperature and precipitation during the Weather Week only are point checks, the guided tour in The National Gallery gave literally "the whole picture” of the Norwegian weather and climate and of the water cycle. During the tour, the curator constantly invited the pupils to tell about and discuss what weather and water elements they were looking at when standing in front of a painting. The pupils were responsive and interested all the time. Back at school, they demonstrated that they had learned much about both weather elements, the water

  9. "Why is it art?" : a talk by Christian Bernard, current director of the Geneva contemporary art gallery Mamco

    CERN Multimedia

    Patrice Loiez

    2000-01-01

    Christian Bernard (right) being welcomed to CERN by Claude Detraz, Director for Fixed Target and Future Programmes, Michel Benot, Vice-President of the Staff Association, who is organising the talk on 21 March, and Jean-Pierre Merlo, physicist and member of the Friends of Mamco committee.

  10. Teaching through contemporary art: a report on innovative practices in the classroom.

    OpenAIRE

    Adams, Jeff N. P.; Worwood, Kelly; Atkinson, Dennis; Dash, Paul; Herne, Steve; Page, Tara

    2008-01-01

    This book is based on a one-year research project undertaken by Goldsmiths, Tate and their partnership teachers. Funded by the National Endowment for Science, Technology and the Arts (NESTA), the project set out to discover and test innovative approaches to teaching and learning in schools through contemporary art practices. The project was initiated in response to previous research by the National Foundation for Educational Research and the National Association for Gallery Education, both of...

  11. Digital Mayhem 3D machine techniques where inspiration, techniques and digital art meet

    CERN Document Server

    Evans, Duncan

    2014-01-01

    From Icy Tundras to Desert savannahs, master the art of landscape and environment design for 2D and 3D digital content. Make it rain, shower your digital scene with a snow storm or develop a believable urban scene with a critical eye for modeling, lighting and composition. Move beyond the limitations of gallery style coffee table books with Digital Mayhem: 3D Landscapes-offering leading professional techniques, groundbreaking inspiration, and artistic mastery from some of the greatest digital artists. More than just a gallery book - each artist has written a breakdown overview, with supporting

  12. Brillouin lasing in whispering gallery micro-resonators

    Science.gov (United States)

    Sturman, B.; Breunig, I.

    2015-12-01

    Thresholds of stimulated Brillouin scattering (SBS) in solid-state whispering gallery mode (WGM) microresonators are analyzed. It is shown that the SBS interaction is substantially different here from that known in the bulk case and in the case of water droplet resonators. The reason is the absence of pure longitudinal acoustic WGMs owing to strong coupling of the longitudinal (l) and transverse (t) acoustic displacements at the surface of the resonator. As a result, a considerable increase of the SBS thresholds takes place, and the lowest thresholds correspond to the hybrid tl-modes with very large radial indices. Nevertheless, the thresholds lie in the μW range of the pump power. Dependence of the SBS power thresholds on the modal numbers and the possibility of self-tuning to the SBS resonance are analyzed.

  13. A temperature sensor based on a whispering gallery mode resonator

    Science.gov (United States)

    Yu, L.; Fernicola, V.

    2013-09-01

    This paper deals with a microwave temperature sensor based on a whispering gallery mode (WGM) resonator whose dielectric medium is a cylindrical sapphire crystal. The performance as temperature sensor were investigated a three WGMs resonant frequencies over the temperature range from -40 °C to 85 °C. It was found that the quality factor for these WGMs can be in excess of 1.7ṡ105, potentially enabling high-resolution measurements. The temperature repeatability, stability, hysteresis, frequency-vs-temperature sensitivity of the WGM temperature sensor are reported. Moreover, two sapphires, which have the same nominal characteristics, were investigated in order to assess the system reproducibility and the results reported.

  14. Spherical-sapphire-based whispering gallery mode resonator thermometer

    Science.gov (United States)

    Yu, Lili; Fernicola, V.

    2012-09-01

    A novel microwave whispering gallery mode (WGM) resonator based on a spherical sapphire crystal was developed at INRIM and its use as a thermometer was tested. The temperature dependence of the WGM frequencies was studied and the most promising resonance near to 13.6 GHz, with a loaded quality factor as large as 82 000, was carefully investigated. Its potential use in thermometry was evaluated through a study of its main metrological characteristics, such as the temperature sensitivity, the frequency stability, the repeatability, and the resolution at several temperatures over the temperature range -40 °C to 85 °C. Finally, the INRIM spherical sapphire thermometer was compared with the NIST SWGT, a dielectric thermometer based on a cylindrical sapphire resonator [V. B. Braginsky, V. S. Ilchenko, and Kh. S. Bagdassarov, Phys. Lett. A 120(3), 300 (1987), 10.1016/0375-9601(87)90676-1].

  15. Polarization-selective out-coupling of whispering gallery modes

    CERN Document Server

    Sedlmeir, Florian; Vogl, Ulrich; Zeltner, Richard; Schunk, Gerhard; Strekalov, Dmitry V; Marquardt, Christoph; Leuchs, Gerd; Schwefel, Harald G L

    2016-01-01

    Whispering gallery mode (WGM) resonators are an important building block for linear, nonlinear and quantum optical experiments. In such experiments, independent control of coupling rates to different modes can lead to improved conversion efficiencies and greater flexibility in generation of non-classical states based on parametric down conversion. In this work, we introduce a scheme which enables selective out-coupling of WGMs belonging to a specific polarization family, while the orthogonally polarized modes remain largely unperturbed. Our technique utilizes material birefringence in both the resonator and coupler such that a negative (positive) birefringence allows selective coupling to TE (TM) polarized WGMs. We formulate a new coupling condition suitable for describing the case where the refractive indices of the resonator and the coupler are almost the same, from which we derive the criterion for polarization-selective coupling. We experimentally demonstrate our proposed method using a lithium niobate di...

  16. Nonlinear and Quantum Optics with Whispering Gallery Resonators

    CERN Document Server

    Strekalov, Dmitry V; Matsko, Andrey B; Schwefel, Harald G L; Leuchs, Gerd

    2016-01-01

    Optical Whispering Gallery Modes (WGMs) derive their name from a famous acoustic phenomenon of guiding a wave by a curved boundary observed nearly a century ago. This phenomenon was later realized to have a rather general nature, equally applicable to sound and all other waves, but in particular also to electromagnetic waves ranging from radio frequencies to ultraviolet light. Very high quality factors of optical WGM resonators persisting in a wide wavelength range, their small mode volume, and tunable in- and out- coupling make them exceptionally efficient for nonlinear optical applications. Nonlinear optics facilitates interaction of photons with each other and with other physical systems, and is of prime importance in quantum optics. In this paper we review numerous applications of WGM resonators in nonlinear and quantum optics. We outline the current areas of interest, summarize progress, highlight difficulties, and discuss possible future development trends in these areas.

  17. Detecting single viruses and nanoparticles using whispering gallery microlasers

    CERN Document Server

    He, Lina; Zhu, Jiangang; Kim, Woosung; Yang, Lan

    2011-01-01

    Detection and characterization of individual nano-scale particles, virions, and pathogens are of paramount importance to human health, homeland security, diagnostic and environmental monitoring[1]. There is a strong demand for high-resolution, portable, and cost-effective systems to make label-free detection and measurement of individual nanoparticles, molecules, and viruses [2-6]. Here, we report an easily accessible, real-time and label-free detection method with single nanoparticle resolution that surpasses detection limit of existing micro- and nano-photonic devices. This is achieved by using an ultra-narrow linewidth whispering gallery microlaser, whose lasing line undergoes frequency splitting upon the binding of individual nano-objects. We demonstrate detection of polystyrene and gold nanoparticles as small as 15 nm and 10 nm in radius, respectively, and Influenza A virions by monitoring changes in self-heterodyning beat note of the split lasing modes. Experiments are performed in both air and aqueous ...

  18. Video gallery of educational lectures integrated in faculty's portal

    Directory of Open Access Journals (Sweden)

    Jaroslav Majerník

    2013-05-01

    Full Text Available This paper presents a web based educational video-clips exhibition created to share various archived lectures for medical students, health care professionals as well as for general public. The presentation of closely related topics was developed as video gallery and it is based solely on free or open source tools to be available for wide academic and/or non-commercial use. Even if the educational video records can be embedded in any websites, we preferred to use our faculty’s portal, which should be a central point to offer various multimedia educational materials. The system was integrated and tested to offer open access to infectology lectures that were captured and archived from live-streamed sessions and from videoconferences.

  19. Structural Protein-based Flexible Whispering Gallery Mode Resonators

    CERN Document Server

    Yilmaz, Huzeyfe; Shreiner, Robert; Szwejkowski, Chester J; Jung, Huihun; Hopkins, Patrick; Ozdemir, Sahin Kaya; Yang, Lan; Demirel, Melik C

    2016-01-01

    Nature provides a set of solutions for photonic structures that are finely tuned, organically diverse and optically efficient. Exquisite knowledge of structure-property relationships in proteins aids in the design of materials with desired properties for building devices with novel functionalities, which are difficult to achieve or previously unattainable. Recent bio-inspired photonic platforms made from proteinaceous materials lay the groundwork for many functional device applications, such as electroluminescence in peptide nucleic acids1, multiphoton absorption in amyloid fibers2 and silk waveguides and inverse opals3-5. Here we report whispering-gallery-mode (WGM) microresonators fabricated entirely from semi-crystalline structural proteins (i.e., squid ring teeth, SRT, from Loligo vulgaris and its recombinant, and silk from Bombyx mori) with unconventional thermo-optic response. We present a striking example of how small modifications at the molecular level lead to structural changes and alter macroscopic...

  20. Dispersion analysis of whispering gallery mode microbubble resonators.

    Science.gov (United States)

    Riesen, Nicolas; Zhang, Wen Qi; Monro, Tanya M

    2016-04-18

    This paper examines the opportunities existing for engineering dispersion in non-silica whispering gallery mode microbubble resonators, for applications such as optical frequency comb generation. More specifically, the zero dispersion wavelength is analyzed as a function of microbubble diameter and wall thickness for several different material groups such as highly-nonlinear soft glasses, polymers and crystalline materials. The zero dispersion wavelength is shown to be highly-tunable by changing the thickness of the shell. Using certain materials it is shown that dispersion equalization can be realized at interesting wavelengths such as deep within the visible or mid-infrared, opening up new possibilities for optical frequency comb generation. This study represents the first extensive analysis of the prospects of using non-silica microbubbles for nonlinear optics. PMID:27137317

  1. Predicting the whispering gallery mode spectra of microresonators

    CERN Document Server

    Hall, Jonathan M M; Henderson, Matthew R; Francois, Alexandre; Reynolds, Tess; Riesena, Nicolas; Monro, Tanya M

    2015-01-01

    The whispering gallery modes (WGMs) of optical resonators have prompted intensive research efforts due to their usefulness in the field of biological sensing, and their employment in nonlinear optics. While much information is available in the literature on numerical modeling of WGMs in microspheres, it remains a challenging task to be able to predict the emitted spectra of spherical microresonators. Here, we establish a customizable Finite- Difference Time-Domain (FDTD)-based approach to investigate the WGM spectrum of microspheres. The simulations are carried out in the vicinity of a dipole source rather than a typical plane-wave beam excitation, thus providing an effective analogue of the fluorescent dye or nanoparticle coatings used in experiment. The analysis of a single dipole source at different positions on the surface or inside a microsphere, serves to assess the relative efficiency of nearby radiating TE and TM modes, characterizing the profile of the spectrum. By varying the number, positions and a...

  2. Broadband second harmonic generation in whispering gallery mode resonators

    CERN Document Server

    Lin, Guoping; Strekalov, Dmitry V; Yu, Nan

    2013-01-01

    Optical frequency conversion processes in nonlinear materials are limited in wavelength by the accessible phase matching and the required high pump powers. In this letter, we report a novel broadband phase matching (PM) technique in high quality factor (Q) whispering gallery mode (WGM) resonators made of birefringent crystalline materials. This technique relies on two interacting WGMs, one with constant and the other with spatially oscillating phase velocity. Thus, phase matching occurs cyclically. The technique can be implemented with a WGM resonator with its disk plane parallel to the optic axis of the crystal. With a single beta barium borate (BBO) resonator in that configuration, we experimentally demonstrated efficient second harmonic generation (SHG) to harmonic wavelengths from 780 nm in the near infrared to 317 nm in the ultraviolet (UV). The observed SHG conversion efficiency is as high as 4.6% (mW)-1. This broadband PM technique opens a new way for nonlinear optics applications in WGM resonators. Th...

  3. Design of contemporary art exhibitions - a struggle or an embracement?

    DEFF Research Database (Denmark)

    Schwarzbart, Judith

    In established museums and art centres the design tasks related to exhibition galleries are often limited to graphic design in wall texts and lables, on the one side, and temporary support structures such as white walls, plinths, and black boxes for video projections, on the other...... the individual works together (in liniear or non-liniear structures). Finally, the insitutuion has its guidelines (corporate identity), museum pedagogs have their method and ideas, etc. This paper will address the use of exhibition design in relation to contemporary art and will discuss a number of examples...... where the exhibition design has been developed in close collaboration between artists and curators....

  4. Microwave photonics systems based on whispering-gallery-mode resonators.

    Science.gov (United States)

    Coillet, Aurélien; Henriet, Rémi; Phan Huy, Kien; Jacquot, Maxime; Furfaro, Luca; Balakireva, Irina; Larger, Laurent; Chembo, Yanne K

    2013-01-01

    Microwave photonics systems rely fundamentally on the interaction between microwave and optical signals. These systems are extremely promising for various areas of technology and applied science, such as aerospace and communication engineering, sensing, metrology, nonlinear photonics, and quantum optics. In this article, we present the principal techniques used in our lab to build microwave photonics systems based on ultra-high Q whispering gallery mode resonators. First detailed in this article is the protocol for resonator polishing, which is based on a grind-and-polish technique close to the ones used to polish optical components such as lenses or telescope mirrors. Then, a white light interferometric profilometer measures surface roughness, which is a key parameter to characterize the quality of the polishing. In order to launch light in the resonator, a tapered silica fiber with diameter in the micrometer range is used. To reach such small diameters, we adopt the "flame-brushing" technique, using simultaneously computer-controlled motors to pull the fiber apart, and a blowtorch to heat the fiber area to be tapered. The resonator and the tapered fiber are later approached to one another to visualize the resonance signal of the whispering gallery modes using a wavelength-scanning laser. By increasing the optical power in the resonator, nonlinear phenomena are triggered until the formation of a Kerr optical frequency comb is observed with a spectrum made of equidistant spectral lines. These Kerr comb spectra have exceptional characteristics that are suitable for several applications in science and technology. We consider the application related to ultra-stable microwave frequency synthesis and demonstrate the generation of a Kerr comb with GHz intermodal frequency. PMID:23963358

  5. Installation Art

    DEFF Research Database (Denmark)

    Petersen, Anne Ring

    Despite its large and growing popularity – to say nothing of its near-ubiquity in the world’s art scenes and international exhibitions of contemporary art –installation art remains a form whose artistic vocabulary and conceptual basis have rarely been subjected to thorough critical examination....... In Installation Art: Between Image and Stage, Anne Ring Petersen aims to change that. She begins by exploring how installation art developed into an interdisciplinary genre in the 1960s, and how its intertwining of the visual and the performative has acted as a catalyst for the generation of new artistic...... phenomena. It investigates how it became one of today’s most widely used art forms, increasingly expanding into consumer, popular and urban cultures, where installation’s often spectacular appearance ensures that it meets contemporary demands for sense-provoking and immersive cultural experiences. The main...

  6. The Cosmology Gallery: Unity through diversity in a vast and awe-inspiring universe.

    Science.gov (United States)

    Goldsmith, John

    2011-06-01

    Scientists, artists, religious and cultural leaders have come together to create the Cosmology Gallery at the Gravity Discovery Centre (GDC) located 70 km north of Perth, Western Australia. The Cosmology Gallery exhibitions include the multicultural cosmology artworks, Celestial Visions astronomical photography exhibition and the Timeline of the Universe. The multicultural cosmology artworks are new artworks inspired by Australian Indigenous, Christian, Buddhist, Islamic, Hindu, scientific and technological perspectives of the universe. The Celestial Visions exhibition features astronomical events above famous landmarks, including Stonehenge and the Pyramids. The AUD 400,000+ project was funded by Lotterywest, Western Australia and the Cosmology Gallery was officially opened in July 2008 by the Premier of Western Australia.

  7. TeraHz tuning of whispering gallery modes in a PDMS, stand-alone, stretchable microsphere

    CERN Document Server

    Madugani, Ramgopal; Ward, Jonathan M; Riordan, John Daniel; Coppola, Sara; Vespini, Veronica; Grilli, Simonetta; Finizio, Andrea; Ferraro, Pietro; Chormaic, Síle Nic

    2012-01-01

    We report on tuning the optical whispering gallery modes in a poly dimethyl siloxane-based (PDMS) microsphere resonator by more than a THz. The PDMS microsphere system consists of a solid spherical resonator directly formed with double stems on either side. The stems act like tie-rods for simple mechanical stretching of the microresonator over tens of microns, resulting in tuning of the whispering gallery modes by one free spectral range. Further investigations demonstrate that the whispering gallery mode shift has a higher sensitivity (0.13 nm/{\\mu}N) to an applied force when the resonator is in its maximally stretched state compared to its relaxed state.

  8. THE ANALYSIS OF THE ART MARKET FROM REPUBLIC OF MOLDOVA WITH INNOVATIVE MARKETING ELEMENTS (based on the author's interview

    Directory of Open Access Journals (Sweden)

    Olga PERCINSCHI

    2015-04-01

    Full Text Available The actuality of this research consists in the less developed of art market in the Republic of Moldova and lack of researches in this domain. The goal of the article is to analyze the art market of the Republic of Moldova with innovative marketing elements. The method of this article is based on interviews conducted with painters, owners of art galleries, art salons were highlighted barriers that hinder the development of the art market in Moldova. The main results are identified ways to overcome and directions for the development of effective marketing that will enhance the country's competitiveness as a whole.

  9. CURATORIAL PRACTICES IN THE MODERN ART ENVIRONMENT

    Directory of Open Access Journals (Sweden)

    Cagatay AKENGIN

    2014-08-01

    Full Text Available The curatorship has become a profession in the visual art field during the period from 1960s to today. In this context, it is aimed to explain the development of curatorship and job description of it which is/is tried to be imposed to it as well as the history of curatorship. A reflection of social and political events by the end of 1960s, of course, showed itself in the artistic events. It was started to be questioned the positions of institutions such as museum and gallery through or via different movements occurred during those periods. When it is examined in the processual aspect, the new and alternative searches have been initiated and thus, the profession, curatorship, was subjected to a change. In the scope of this change, it is observed that the curatorship is transformed into a creating field in the visual art through the important exhibitions.

  10. Art Markets

    NARCIS (Netherlands)

    P.A. Arora (Payal); F.R.R. Vermeylen (Filip)

    2013-01-01

    textabstractThe advent of digitization has had a profound impact on the art market and its institutions. In this chapter, we focus on the market for visual arts as it finds its expression in (among other) paintings, prints, drawings, photographs, sculpture and the like. These artistic disciplines cl

  11. 75 FR 15740 - Gallery Leather Company, Inc., Trenton, ME; Notice of Termination of Investigation

    Science.gov (United States)

    2010-03-30

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF LABOR Employment and Training Administration Gallery Leather Company, Inc., Trenton, ME; Notice of Termination of... Leather Company, Inc., Trenton, Maine. The petitioner has requested that the petition be...

  12. OPTICAL SOLITONS: Optical solitons appearing during propagation of whispering-gallery waves

    Science.gov (United States)

    Torchigin, V. P.; Torchigin, S. V.

    2003-10-01

    The properties of solitons appearing during the propagation of whispering-gallery waves in a homogeneous glass cylinder are considered. It is shown that such solitons can be used for the light frequency conversion.

  13. Earth Resources Observation and Science (EROS) Center's Landsat State Mosaics Gallery

    Data.gov (United States)

    National Aeronautics and Space Administration — The Earth Resources Observation and Science (EROS) Center manages the this gallery of images of the 50 U.S. states plus Puerto Rico as derived by Landsat data.

  14. A coaxial converter for transforming a whispering gallery mode to the HE11 mode

    International Nuclear Information System (INIS)

    A coaxial analogue of the Vlasov converter is described which transforms a whispering gallery mode into an oversize rectangular TE01 mode, which can in turn be transformed into the HE11 mode by standard techniques. 5 refs., 4 figs

  15. PAO Image Gallery = Public Affairs Photos of EROS Projects: 1972 - 2005

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The EROS Image Gallery collection is composed of a wide variety of images ranging from low altitude aircraft to satellite and NASA imagery; oblique photographs and...

  16. Earth Resources Observation and Science (EROS) Center's Journey of Lewis and Clark Gallery

    Data.gov (United States)

    National Aeronautics and Space Administration — The Earth Resources Observation and Science (EROS) Center manages the this gallery of Landsat-derived images of one of the most remarkable and productive scientific...

  17. Mathematical model of an excitation by electron beam of 'whispering gallery' modes in cylindrical dielectric resonator

    International Nuclear Information System (INIS)

    For generation of oscillations of millimeter and submillimeter wave lengths can be used 'whispering gallery' modes excited in a dielectric resonator by an azimuthally-modulated electron beam. The mathematical model of excitation of these modes is constructed. The dispersion equation for determination of Eigen frequencies of 'whispering gallery' modes is obtained, Eigen waves and their norms are found. Using them, the integro-differential equations for Eigen wave amplitudes are derived.

  18. Direct ultimate disposal of spent fuel. Handling tests for gallery storage. Final report. Main volume

    International Nuclear Information System (INIS)

    The volume contains the results of above ground simulated handling experiments for gallery storage in POLLUX containers: (1) design and testing of the track system for gallery storage; (2) fault behaviour of the disposal facility; (3) control programme of the disposal facility; (4) elimination of operational incidents in case of defects of the plateau wagon or of the disposal facility - radiological exposure of personnel; (5) simulation tests of operational failure of the plateau wagon or the disposal facility. (HP)

  19. TeraHz tuning of whispering gallery modes in a PDMS, stand-alone, stretchable microsphere

    OpenAIRE

    Madugani, Ramgopal; YANG, YONG; Jonathan M. Ward; Riordan, John Daniel; Coppola, Sara; Vespini, Veronica; Grilli, Simonetta; Finizio, Andrea; Ferraro, Pietro; Chormaic, Síle Nic

    2012-01-01

    We report on tuning the optical whispering gallery modes in a poly dimethyl siloxane-based (PDMS) microsphere resonator by more than a THz. The PDMS microsphere system consists of a solid spherical resonator directly formed with double stems on either side. The stems act like tie-rods for simple mechanical stretching of the microresonator over tens of microns, resulting in tuning of the whispering gallery modes by one free spectral range. Further investigations demonstrate that the whispering...

  20. Broadband light-extraction enhanced by arrays of whispering gallery resonators

    DEFF Research Database (Denmark)

    Zhu, Xiaolong; Ou, Yiyu; Jokubavicius, Valdas; Syvajarvi, Mikael; Hansen, Ole; Ou, Haiyan; Mortensen, N. Asger; Xiao, Sanshui

    2012-01-01

    We demonstrate a light-extraction approach using a whispering gallery resonators array. The wavelength-scale resonant dielectric nanospheres support whispering gallery modes, which can be coupled with the confined waveguide modes inside the bulk material, thus dramatically improving light extract...... experimental results are supported by numerical simulations. Our light-extraction strategy could enable the manufacturing of high-throughput, nondestructive, and affordable optical coating in a variety of optical devices....

  1. ART 101 Tutorials /art101dotcom

    OpenAIRE

    yamini63

    2015-01-01

    ART 101 Entire Course   For more course tutorials visit www.uopart101.com   ART 101 Week 1 CheckPoint Visual Literacy ART 101 Week 1 Assignment Reading Art Practicing Iconography ART 101 Week 2 CheckPoint Art and Intention ART 101 Week 2 DQ 1 and DQ 2 ART 101 Week 3 CheckPoint Analytical and Expressive Line ART 101 Week 3 Assignment Formal Analysis of Art ART 101 Week 4 CheckPoint Design Movements ART 101 Week 4 DQ 1 and DQ 2 ART 1...

  2. GPR investigations in galleries buried inside a karstified limestone formation

    Science.gov (United States)

    Rousset, D.; Sénéchal, G.; Gaffet, S.

    2009-04-01

    A large scientific program of geophysical investigations is presently performed inside the Low-Noise Underground Laboratory (Laboratoire Souterrain à Bas Bruit / LSBB, Rustrel, France) which is an decomissioned underground missile control center, buried in a karstified limestone formation. One of the goals of this project is the understanding of the water circulation inside the structure. This experimental site offers a unique opportunity of perfoming measurements within an unweathered limestone massif. The tunnel has been dug in lower cretaceous limestone which is characterized by a low clay content, high electrical resistivity. The dip is around 25 degrees and vertical faults locally affect the structure. The studied zone is located in south-eastern France (Provence) and is characterized by a mediterranean climate with long dry periods and strong, short events of rain. This phenomenon induces large variations of water content within the karstified limestone from dry to saturated conditions. Analysis of the spatial and temporal variations of the water flow in a karstified limestones needs to define the geological context and the adequate geophysical methods. GPR offers a good tradeoff between resolution and ease of use on one hand and investigation depth on the other hand. We present some GPR profiles which have been acquired in April 2008 after a quite long and strong period of rain, inducing a complete water saturation inside the karstified massif. We used several RAMAC shielded antennas from 100 to 500 MHz. The longest profile is around 600 m long, with a 20 cm spacing, running from a raw to a concrete gallery. These data sets are characterized by a very good signal to noise ratio and a signal penetration, up to 18 meters. Signal processing includes very low frequency filtering, amplitude compensation, keeping lateral relative attenuation and ringing suppression. Final sections includes migration and time to depth conversion or depth migration. The estimated

  3. Balinese Art versus Global Art

    Directory of Open Access Journals (Sweden)

    Adrian Vickers

    2015-10-01

    Full Text Available AbstractThere are two reasons why “Balinese art” is not a global art form, firstbecause it became too closely subordinated to tourism between the 1950sand 1970s, and secondly because of confusion about how to classify“modern” and “traditional” Balinese art. The category of ‘modern’ artseems at first to be unproblematic, but looking at Balinese paintingfrom the 1930s to the present day shows that divisions into ‘traditional’,‘modern’ and ‘contemporary’ are anything but straight-forward. Indismantling the myth that modern Balinese art was a Western creation,this article also shows that Balinese art has a complicated relationship toIndonesian art, and that success as a modern or contemporary artist inBali depends on going outside the island.

  4. Arts Entrepreneurship

    DEFF Research Database (Denmark)

    Gartner, Bill

    2015-01-01

    Contribution to the opinion series “Perspectives” on arts entrepreneurship; how arts entrepreneurship is situated in relation to other disciplines or fields; what problems we are grappling with as scholars, practitioners, teachers, and artists; and what are the research questions we are attempting...... to answer individually or as a field. Under the headline “Perspectives on Arts Entrepreneurship, part 2”, are responses from: William B. Gartner, Professor of Entrepreneurship at Copenhagen Business School and California Lutheran University; Joseph Roberts, Director of the Coleman Fellows Program, Associate...

  5. Art & Science duality in Fluid Mechanics

    Science.gov (United States)

    Chomaz, Jean-Marc

    2014-11-01

    The connections between Art & Science is analysed through examples of my research both in Fluid Mechanics and in Art & Science. Working as a member of the artist group Labofactory and collaborating with more than twenty different artists, I have been exploring for more than twenty-four years a path between art and science that mixes both scientific and artistic imaginations. Formulating questions in science is pure imagination and intuition that does not involve only the sensible side of the brain but the sensitive side, which is able to be non incremental, to understand faster and anticipate. Instead of showing scientific proof or technique, it is possible with Art & Science to directly attempt to share this sensitive side. I will show ten recent installations that involve vortex rings, tornado generators, music propagated in shallow layers, wave tanks used as silent soft drums, boundary layer on a rotating sphere to question climate change, plum ever evolving over a nuclear plan in an water tank, a bubbly fountain in microfluidic... Two installations on the thermohaline circulation staged in a stratified tank and on the generation of earthquake are part of the exhibit ``LOST IN FATHOMS'' with the artist Anaïs Tondeur from 17 October until 29 November 2014 at the GV Art gallery, London. These pieces are like writing poems using fluid mechanics and by doing so re-interrogating our scientific practice and the societal role of science. They symmetrize the relation with the public that involve not only ``outreach'' but ``inreach'' or sharing.

  6. Whispering galleries and the control of artificial atoms

    Science.gov (United States)

    Forrester, Derek Michael; Kusmartsev, Feodor V.

    2016-01-01

    Quantum computation using artificial-atoms, such as novel superconducting circuits, can be sensitively controlled by external electromagnetic fields. These fields and the self-fields attributable to the coupled artificial-atoms influence the amount of quantum correlation in the system. However, control elements that can operate without complete destruction of the entanglement of the quantum-bits are difficult to engineer. Here we investigate the possibility of using closely-spaced-linear arrays of metallic-elliptical discs as whispering gallery waveguides to control artificial-atoms. The discs confine and guide radiation through the array with small notches etched into their sides that act as scatterers. We focus on π-ring artificial-atoms, which can generate their own spontaneous fluxes. We find that the micro-discs of the waveguides can be excited by terahertz frequency fields to exhibit whispering-modes and that a quantum-phase-gate composed of π-rings can be operated under their influence. Furthermore, we gauge the level of entanglement through the concurrence measure and show that under certain magnetic conditions a series of entanglement sudden-deaths and revivals occur between the two qubits. This is important for understanding the stability and life-time of qubit operations using, for example, a phase gate in a hybrid of quantum technologies composed of control elements and artificial-atoms. PMID:27122353

  7. Conceptual Design Report. Footprint Gallery Upgrade - Civil Construction, May 1988

    Energy Technology Data Exchange (ETDEWEB)

    None

    1988-05-01

    The Footprint Gallery Complex will be enlarged and modified. The basic outline of the project will be to add 68,100 square feet of new construction, remodel 20,600 square feet of existing space, and retire by removal 17 ,500 square feet. The principal items to be addressed are: the creation of larger Main Control Rooms and Central Control Computer Rooms, the replacement of several temporary structures with permanent facilities, the provision for a growth in population of 132 people, and the creation of an intermediate sized meeting/lecture room facility. Disjointed second floor areas will be connected and made accessible to the handicapped, secure and informative viewing for visitors will be provided, and parking will be increased to match the expected growth. The new construction will provide for a more centralized concentration of systems and support personnel of the Fermilab Accelerator Division, reflecting the growth of these organizations during the last 15 years. Experiments, such as the D-Zero detector and antiproton deceleration (E760), have been assigned to the Accelerator Division for support. The associated physicists and experimenters make up the most significant component of the growth in population for which this construction will provide additional space.

  8. Whispering gallery mode micro resonators: Fundamentals and applications

    International Nuclear Information System (INIS)

    Confinement of light into small volumes has become an essential requirement for photonic devices; examples of this trend are provided by optical fibers, integrated optical circuits, semiconductor lasers, and photonic crystals. Optical dielectric resonators supporting Whispering Gallery Modes (WGMs) represent another class of cavity devices with exceptional properties, like extremely small mode volume, very high power density, and very narrow spectral linewidth. WGMs are now known since more than 100 years, after the papers published by John William Strutt (Lord Rayleigh), but their importance as unique tools to study nonlinear optical phenomena or quantum electrodynamics, and for application to very low threshold micro lasers as well as very sensitive microsensors, has been recognized only in recent years. This paper presents a review of the field of WGM resonators, which exist in several geometrical structures like cylindrical optical fibers, microspheres, micro fiber coils, micro disks, micro toroids, photonic crystal cavities, etc. up to the most exotic structures, such as bottle and bubble micro resonators. For the sake of simplicity, the fundaments of WGM propagation and most of the applications will be described only with reference to the most common structure, i.e. microspherical resonators.

  9. Whispering Gallery Resonators and Tests of Lorentz Invariance

    CERN Document Server

    Wolf, P; Santarelli, G; Bize, S; Tobar, M E; Luiten, A N; Wolf, Peter; Clairon, Andre; Santarelli, Giorgio; Bize, Sebastien; Tobar, Michael E.; Luiten, Andre N.

    2004-01-01

    The frequencies of a cryogenic sapphire oscillator and a hydrogen maser are compared to set new constraints on a possible violation of Lorentz invariance. We give a detailed description of microwave resonators operating in Whispering Gallery modes and then apply it to derive explicit models for Lorentz violating effects in our experiment. Models are calculated in the theoretical framework of Robertson, Mansouri and Sexl and in the standard model extension (SME) of Kostelecky and co-workers. We constrain the parameters of the Mansouri and Sexl test theory to $1/2 - \\beta_{MS} + \\delta_{MS} = (1.2 \\pm 2.2) \\times 10^{-9}$ and $\\beta_{MS} - \\alpha_{MS} - 1 = (1.6 \\pm 3.0) \\times 10^{-7}$ which is of the same order as the best results from other experiments for the former and represents a 70 fold improvement for the latter. These results correspond to an improvement of our previously published limits [Wolf P. et al., Phys. Rev. Lett. {\\bf 90}, 6, 060402, (2003)] by about a factor 2.

  10. High-Q BBO whispering gallery mode resonators

    Science.gov (United States)

    Lin, Guoping; Fürst, Josef U.; Strekalov, Dmitry V.; Grudinin, Ivan S.; Yu, Nan

    2013-02-01

    We report an investigation on optical whispering gallery mode (WGM) resonators made from non z-cut beta barium borate (BBO) crystals. We first fabricated high quality (Q) factor WGM resonators made of an angle-cut BBO crystal. Q factors of 1×108 level have been demonstrated at various wavelengths including UV. They led to new upper bounds for the absorption coefficients of BBO at 1560 nm, 980 nm and 370 nm. We observed only one set of ordinarily polarized WGMs with polarization rotating along the resonator circumference. We also fabricated xy-cut BBO WGM resonators, in which the optic axis is parallel to the resonator plane. In that case, two WGM families with different polarization exist, one with constant the other with oscillatory phase velocity. This enables a novel way of broadband phase matching in WGM resonators with cyclic gain. We experimentally demonstrated efficient second harmonic generation (SHG) to a wide harmonic wavelength range from 780 nm at near infrared to 317 nm in UV. It is also the first reported direct UV SHG in a high-Q WGM resonator. This work lays a foundation for further investigations of WGM properties of non-z cut birefringent resonators and their applications in nonlinear optics.

  11. Whispering galleries and the control of artificial atoms.

    Science.gov (United States)

    Forrester, Derek Michael; Kusmartsev, Feodor V

    2016-01-01

    Quantum computation using artificial-atoms, such as novel superconducting circuits, can be sensitively controlled by external electromagnetic fields. These fields and the self-fields attributable to the coupled artificial-atoms influence the amount of quantum correlation in the system. However, control elements that can operate without complete destruction of the entanglement of the quantum-bits are difficult to engineer. Here we investigate the possibility of using closely-spaced-linear arrays of metallic-elliptical discs as whispering gallery waveguides to control artificial-atoms. The discs confine and guide radiation through the array with small notches etched into their sides that act as scatterers. We focus on π-ring artificial-atoms, which can generate their own spontaneous fluxes. We find that the micro-discs of the waveguides can be excited by terahertz frequency fields to exhibit whispering-modes and that a quantum-phase-gate composed of π-rings can be operated under their influence. Furthermore, we gauge the level of entanglement through the concurrence measure and show that under certain magnetic conditions a series of entanglement sudden-deaths and revivals occur between the two qubits. This is important for understanding the stability and life-time of qubit operations using, for example, a phase gate in a hybrid of quantum technologies composed of control elements and artificial-atoms. PMID:27122353

  12. Dispersion and polarization conversion of whispering gallery modes in nanowires

    International Nuclear Information System (INIS)

    We investigate theoretically the optical properties of nano-wires (NWs) with cross sections having either discrete or cylindrical symmetry. The material forming the wire is birefringent, showing a different dielectric response in the plane and along the axis of the wire, which is typically the case for wires made of wurtzite materials, such as ZnO or GaN. We look for solutions of Maxwell's equations having the proper symmetry. The dispersions and the linewidths versus angle of incident light for the modes having high momentum in the cross-section plane, so called whispering gallery modes, are calculated. We put a special emphasis on the case of hexagonal cross sections. The energy positions of the modes for a set of azimuthal quantum numbers are shown. We demonstrate the dependence of the energy splitting between TE and TM modes versus birefringence. The polarization conversion from TE to TM with increase in the axial wave vector is discussed for both cylindrical and discrete symmetries.

  13. Interfacing whispering gallery mode microresonators for environmental biosensing

    Science.gov (United States)

    Hunt, Heather K.; Dahmen, Jeremy L.; Soteropulos, Carol E.

    2014-03-01

    Label-free biosensors that combine high sensitivity and high specificity characteristics have shown tremendous potential for applications in medical diagnostics, and have more recently been extended to the food safety and environmental monitoring arenas. A unique type of label-free, optical biosensor, based on Whispering Gallery Mode microresonators, has tremendous potential to revolutionize biodetection due to its extreme sensitivity. The primary limitation of these biosensors, however, is that they require the addition of biorecognition elements to specifically target a biological species of interest. Therefore, the ability to selectively functionalize the microresonator for a specific target molecule, without degrading device performance, is extremely important, and represents the next step in translating these devices from laboratory to field environments. Here, we demonstrate a variety of straightforward bioconjugation strategies that not only impart specificity to optical microresonators, but also allow for the creation of multi-use platforms for complex environments. Of particular interest is the ability to detect harmful bacteria, insects, and fungi in crop and water systems. The resulting surface chemistries are illustrated with XPS, SEM, and fluorescence and optical microscopy, and the device sensitivity is determined via quantitative microcavity analysis. The ability to minimize non-specific adsorption and target unique molecules in complex environments is demonstrated via ellipsometry and in situ device testing. The resulting devices can be recycled several times without loss of sensitivity. By combining these high sensitivity biosensors with appropriate biochemistries, the resulting platforms can be extended to address broader issues in environmental biosensing that directly impact agriculture.

  14. Shadow art

    KAUST Repository

    Mitra, Niloy J.

    2009-01-01

    "To them, I said, the truth would be literally nothing but the shadows of the images." - Plato, The Republic Shadow art is a unique form of sculptural art where the 2D shadows cast by a 3D sculpture are essential for the artistic effect. We introduce computational tools for the creation of shadow art and propose a design process where the user can directly specify the desired shadows by providing a set of binary images and corresponding projection information. Since multiple shadow images often contradict each other, we present a geometric optimization that computes a 3D shadow volume whose shadows best approximate the provided input images. Our analysis shows that this optimization is essential for obtaining physically realizable 3D sculptures. The resulting shadow volume can then be modified with a set of interactive editing tools that automatically respect the often intricate shadow constraints. We demonstrate the potential of our system with a number of complex 3D shadow art sculptures that go beyond what is seen in contemporary art pieces. © 2009 ACM.

  15. Art Therapy

    DEFF Research Database (Denmark)

    Skov, Vibeke; Pedersen, Inge Nygaard

    2014-01-01

    Abstract Based on a Jungian approach, this article will introduce an integrative model to therapeutic change using art therapy methods as practical tools, with the aim of improving quality of life and in the prevention of depression. In a research study involving six participants, painting, clay...... work and drumming were used together with imagination and personal dialogues linked to the artwork. These art therapy processes attempted to combine the participant’s experience of inner and outer reality. The effect of gaining more knowledge about their inner reality using dreams and symbols......, was that participants gained a new understanding about their personal life. In addition, some participants were able to continue to use art therapy experiences as selfdevelopmental tools after the research study terminated. Jung’s description of the interactive relationship between the two living parts of the psyche...

  16. Unidirectional emission from whispering gallery modes via transformation optics

    Science.gov (United States)

    Kim, Yushin; Lee, Soo-Young; Ryu, Jung-Wan; Kim, Inbo; Han, Jae-hyung; Tae, Heung-Sik; Choi, Muhan; Min, Bumki

    2014-09-01

    It is well known from transformation optics that a light pathway can be designed with artificial materials. When a coordinate transform technique is applied to optically resonating dielectric structures, interesting phenomena can be observed as well. Generally, a long-lived whispering gallery mode (WGM) has no preferential direction of radiation because of its rotationally symmetric structure. However, if the space inside the resonator is transformed so that the discontinuity of coordinates exists, it becomes possible to reconcile directional emission with WGMs. Here, we transform only the inner space of a deformed optical cavity, e.g., the Limaçon cavity into a virtual perfect disk via a conformal mapping and show these two seemingly incompatible behaviors can be observed simultaneously. The refractive index profiles that realize the transformed space can be obtained from the conformal space transformation. The resonant mode calculated with a transformed boundary element method shows that the WGMs can restore for the deformed cavity. The Husimi function calculated for this transformed cavity shows a weighted band-like profile, which implies that the optical rays inside the cavity is maintaining its reflecting angle as is for the original cavity. However, the far-field pattern shows anisotropic emission of radiation because it is determined by tunneling through the rotationally asymmetric boundary. For example, the conformal WGMs in Limaçon and center-shifted triangular cavities exhibit bidirectional and uni-directional emission patterns in the far-field, respectively. These conformal WGM cavities with both the ultra-high quality factor and the directional light emission may be used in the realization of efficient directional light sources.

  17. Coffee, Cake & Culture: Evaluation of an art for health programme for older people in the community.

    Science.gov (United States)

    Roe, Brenda; McCormick, Sheila; Lucas, Terri; Gallagher, Wendy; Winn, Andrea; Elkin, Sophie

    2016-07-01

    Arts for health initiatives and networks are being developed in a number of countries and an international literature is emerging on the evidence of their benefits to people's health, wellbeing and quality of life. Engagement in cultural and creative arts by older people can increase their morale and self-confidence and provides opportunities for social connection. Museums and galleries are increasingly required to justify their expenditure, reach and impact and some are working in partnership with local councils, hospitals, schools and communities to improve access to their collections. There is a body of literature emerging that describes such initiatives but empirical evidence of their benefits is less developed. This article reports an evaluation of an art for health initiative - Coffee, Cake & Culture organised and delivered by Whitworth Art Gallery and Manchester Museum in 2012 for older people living in a care home and a supported living facility. The study has identified the benefits and impacts of the arts for health programme and its feasibility for older people, with or without diagnosed memory loss - dementia, living in a care home or supported living facility and their care staff. The findings demonstrate there were benefits to the older people and their care staff in terms of wellbeing, social engagement, learning, social inclusion and creativity. These benefits were immediate and continued in the short term on their return home. The majority of older people and care staff had not previously been to the art gallery or museum and the programme encouraged creative arts and cultural appreciation which promoted social inclusion, wellbeing and quality of life. The programme is feasible and important lessons were identified for future planning. Further research involving partnerships of researchers, arts for health curators, artists, care staff, older people and their families is warranted. PMID:24686287

  18. Response Art: The Art of the Art Therapist

    Science.gov (United States)

    Fish, Barbara J.

    2012-01-01

    Response art is artwork created by art therapists in response to material that arises in their therapy work. Art therapists use response art to contain difficult material, express and examine their experiences, and share their experiences with others. In this viewpoint, some of the varied uses of response art are discussed and illuminated with…

  19. Astronomy and Art Merged: Targeting Other Audiences

    Science.gov (United States)

    Friedman, A. F.

    1999-05-01

    One of the fundamental concerns of museum exhibition is to reach as broad an audience as possible. One way to open up the history of astronomy to a wider audience is to create an exhibit with an interdisciplinary theme and to select a venue outside of a science institution. Here I discuss ``Awestruck by the Majesty of the Heavens: Artistic Perspectives from the Adler Planetarium & Astronomy Museum History of Astronomy Collection," which took place at the Chicago Cultural Center from January to March of 1997. ``Awestruck" featured a selection of celestial charts, portrait prints of famous astronomers, plates from books on astronomical topics, and other works on paper. It focused on the connections between art and science during the period 1500-1800. Scientific content and place within the history of astronomy were discussed in addition to the artistic merit of the objects. The Chicago Cultural Center is an institution that is home to a wide variety of cultural programming including art, music, film, theater, and dance. In addition to providing a different audience for this material than that which typically visits the Adler, ``Awestruck" also represented an expansion of material for the Cultural Center's audience to view, as their exhibition spaces primarily show only 20th-century art. Programming such as gallery talks and the production of an art-museum-type exhibition catalog will also be discussed.

  20. NASA Science Engagement Through "Sky Art"

    Science.gov (United States)

    Bethea, K. L.; Damadeo, K.

    2013-12-01

    Sky Art is a NASA-funded online community where the public can share in the beauty of nature and the science behind it. At the center of Sky Art is a gallery of amateur sky photos submitted by users that are related to NASA Earth science mission research areas. Through their submissions, amateur photographers from around the world are engaged in the process of making observations, or taking pictures, of the sky just like many NASA science instruments. By submitting their pictures and engaging in the online community discussions and interactions with NASA scientists, users make the connection between the beauty of nature and atmospheric science. Sky Art is a gateway for interaction and information aimed at drawing excitement and interest in atmospheric phenomena including sunrises, sunsets, moonrises, moonsets, and aerosols, each of which correlates to a NASA science mission. Educating the public on atmospheric science topics in an informal way is a central goal of Sky Art. NASA science is included in the community through interaction from scientists, NASA images, and blog posts on science concepts derived from the images. Additionally, the website connects educators through the formal education pathway where science concepts are taught through activities and lessons that align with national learning standards. Sky Art was conceived as part of the Education and Public Outreach program of the SAGE III on ISS mission. There are currently three other NASA mission involved with Sky Art: CALIPSO, GPM, and CLARREO. This paper will discuss the process of developing the Sky Art online website, the challenges of growing a community of users, as well as the use of social media and mobile applications in science outreach and education.

  1. Art Lessons

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Art exhibitions in China are now an important way to engage with Africa THE African Museum at China’s Zhejiang Normal University(ZJNU) is the first of its kind on the Chinese mainland with the theme of African civilization.ZJNU is also the first Chinese university to set up a comprehensive institute of African studies.The museum was completed on

  2. Chicken Art

    Science.gov (United States)

    Bickett, Marianne

    2009-01-01

    In this article, the author describes how a visit from a flock of chickens provided inspiration for the children's chicken art. The gentle clucking of the hens, the rooster crowing, and the softness of the feathers all provided rich aural, tactile, visual, and emotional experiences. The experience affirms the importance and value of direct…

  3. Art, Paleolithic

    Czech Academy of Sciences Publication Activity Database

    Svoboda, Jiří

    Vol. 1. Great Barrington : Berkshire Poublishing Group LLC, 2005 - (McNeill, W.), s. 180-184 ISBN 0-9743091-0-9 Institutional research plan: CEZ:AV0Z80010507 Keywords : Paleolithic * art Subject RIV: AC - Archeology, Anthropology, Ethnology

  4. Balinese Art versus Global Art

    OpenAIRE

    Adrian Vickers

    2015-01-01

    AbstractThere are two reasons why “Balinese art” is not a global art form, firstbecause it became too closely subordinated to tourism between the 1950sand 1970s, and secondly because of confusion about how to classify“modern” and “traditional” Balinese art. The category of ‘modern’ artseems at first to be unproblematic, but looking at Balinese paintingfrom the 1930s to the present day shows that divisions into ‘traditional’,‘modern’ and ‘contemporary’ are anything but straight-forward. Indism...

  5. Topological Galleries: A High Level User Interface for Topology Controlled Volume Rendering

    Energy Technology Data Exchange (ETDEWEB)

    MacCarthy, Brian; Carr, Hamish; Weber, Gunther H.

    2011-06-30

    Existing topological interfaces to volume rendering are limited by their reliance on sophisticated knowledge of topology by the user. We extend previous work by describing topological galleries, an interface for novice users that is based on the design galleries approach. We report three contributions: an interface based on hierarchical thumbnail galleries to display the containment relationships between topologically identifiable features, the use of the pruning hierarchy instead of branch decomposition for contour tree simplification, and drag-and-drop transfer function assignment for individual components. Initial results suggest that this approach suffers from limitations due to rapid drop-off of feature size in the pruning hierarchy. We explore these limitations by providing statistics of feature size as function of depth in the pruning hierarchy of the contour tree.

  6. Colloid-borne uranium and other heavy metals in the water of a mine drainage gallery

    International Nuclear Information System (INIS)

    The water of a mine drainage gallery was investigated for its contents of colloid-borne heavy metals with emphasis on uranium. About 1 mg/L of colloid particles of 100 to 300 nm were found. They consist of a matrix of Fe and Al oxyhydroxides and are formed when anoxic slightly acidic shaft waters mix with oxic near-neutral gallery water. The colloid particles bear toxic trace elements such as As, Pb, and Cu. Almost 100% of the As and Pb and about 70% of the Cu contained in the water are colloid-borne. Carbonato complexes prevent the uranyl from being adsorbed on the colloids in the unaltered gallery water. Acidification destroys these complexes: up to 50% of the uranium is attached to the colloids in the slightly acidic pH region. Further acidification converts the uranyl again to a 'non-colloidal' form. (orig.)

  7. Guerilla Science: Outreach at music and art festival

    Science.gov (United States)

    Rosin, Mark

    2012-10-01

    Guerilla Science a non-profit science education organization that, since 2007, has brought live events to unconventional venues for science, such as music festivals, art galleries, banquets, department stores and theaters. Guerilla Science sets science free by taking it out of the lab and into the traditional domains of the arts. By producing events that mix science with art, music and play, they create unique opportunities for adult audiences to experience science in unorthodox ways, such as interactive events, games, live experiments, demonstrations and performances by academics, artists, musicians, actors, and professional science communicators. Much of Guerilla Science's work has focused on astrophysical and terrestrial plasmas, and this presentation will provide an overview of Guerilla Science's work in this area. Guerilla Science has produced over twenty events, receiving international media coverage, and directly reached over fifteen thousand members of the public.

  8. Multispectral Analysis of Indigenous Rock Art Using Terrestrial Laser Scanning

    Science.gov (United States)

    Skoog, B.; Helmholz, P.; Belton, D.

    2016-06-01

    Multispectral analysis is a widely used technique in the photogrammetric and remote sensing industry. The use of Terrestrial Laser Scanning (TLS) in combination with imagery is becoming increasingly common, with its applications spreading to a wider range of fields. Both systems benefit from being a non-contact technique that can be used to accurately capture data regarding the target surface. Although multispectral analysis is actively performed within the spatial sciences field, its extent of application within an archaeological context has been limited. This study effectively aims to apply the multispectral techniques commonly used, to a remote Indigenous site that contains an extensive gallery of aging rock art. The ultimate goal for this research is the development of a systematic procedure that could be applied to numerous similar sites for the purpose of heritage preservation and research. The study consisted of extensive data capture of the rock art gallery using two different TLS systems and a digital SLR camera. The data was combined into a common 2D reference frame that allowed for standard image processing to be applied. An unsupervised k-means classifier was applied to the multiband images to detect the different types of rock art present. The result was unsatisfactory as the subsequent classification accuracy was relatively low. The procedure and technique does however show potential and further testing with different classification algorithms could possibly improve the result significantly.

  9. What museums must do to ensure art is protected

    OpenAIRE

    Brown, Jean

    2015-01-01

    A young Taiwanese boy caused extensive damage to a valuable 17th century painting by Paolo Porpora after he accidentally tripped and put his hand through it while trying to break his fall. The incident highlights an ongoing challenge faced by museums and galleries – keeping works of art accessible to the public, and protecting them at the same time. Curators and conservators are only too well aware of the risks, which can be deliberate, incidental or, as in this case, accidental. So what ...

  10. An Art Centered Art Curriculum.

    Science.gov (United States)

    Irvine, Hope

    1984-01-01

    There are 10 approaches that teachers can use to sort out and present works of art to students, e.g., stylistic, topical, specific artist. Teachers should use all the approaches when developing a curriculum. An example of how a study of impressionism by secondary students might include these approaches is provided. (RM)

  11. Optical humidity sensor based on a liquid whispering-gallery mode resonator

    CERN Document Server

    Labrador-Paez, Lucia; Hernandez-Rodriguez, Miguel; Martin, Inocencio R; Carmon, Tal; Martin, Leopoldo L

    2016-01-01

    We experimentally demonstrate the use of a novel liquid state, whispering-gallery-mode optical resonator as a highly sensitive humidity sensor. The optical resonator used consists of a droplet made of glycerol, a transparent liquid that enables high optical quality factor, doped with rhodamine 6G, which acts as fluorescent emitter. As glycerol is highly hygroscopic, the refractive index and radius of the droplet change with ambient humidity. This produces a shift on the whispering gallery modes wavelengths, which modulates the emission of rhodamine 6G. This easily-made device has an unpreceded sensitivity of 10-3 per relative humidity percent.

  12. The whispering gallery as an optical component in the X-ray region

    International Nuclear Information System (INIS)

    The whispering gallery phenomenon in acoustics has been known and studied for more than a century, and the same effect has been observed to take place with waves other than sound waves. In this paper we review the theoretical basis and attractive features of the whispering gallery as a soft x-ray optical component and indicate some of its potential applications. We then describe what may be its most unique capability which, in favorable cases, is to provide a way. to manipulate the phase difference between the s and p polarization components and thus to generate circularly or elliptically polarized soft x-rays

  13. Multi-scale nonlinear effects in whispering-gallery mode resonators

    Science.gov (United States)

    Lin, Guoping; Diallo, Souleymane; Chembo, Yanne K.

    2016-03-01

    Whispering gallery mode resonators have been the focus of many research works in recent years. They allow to study the light-matter interactions induced by the confinement of photons in nonlinear media. In particular, Brillouin Raman and Kerr nonlinearities excite the resonator at the lattice, molecular and electronic scale. This difference in spatial scales give to whispering gallery-mode resonators the potential to be central photonic components in microwave photonics, quantum optics and optoelectronics. We discuss in this communication some of the key challenges that have to be met for the understanding of Kerr, Raman and Brillouin interactions that can take place in these resonators.

  14. Polarizing optics for the soft x-ray regime: Whispering-gallery mirrors and multilayer beamsplitters

    Energy Technology Data Exchange (ETDEWEB)

    Braud, J.P.

    1991-01-01

    Two short-wavelength optical components are described. The first, the whispering-gallery mirror, uses many glancing-incidence reflections to deflect a beam through a large net angle. Because the Fresnel coefficient for each reflection depends upon the state of polarization, the whispering-gallery mirror can act both as a polarizer and as a birefringent element. The second, the multilayer polarizing beamsplitter, is a Brewster-angle reflector thin enough to allow partial partial transmission of the incident beam. Its behavior can be surprising; in some cases the same polarization mode is preferred on both reflection and transmission.

  15. Polarizing optics for the soft x-ray regime: Whispering-gallery mirrors and multilayer beamsplitters

    Energy Technology Data Exchange (ETDEWEB)

    Braud, J.P.

    1991-12-31

    Two short-wavelength optical components are described. The first, the whispering-gallery mirror, uses many glancing-incidence reflections to deflect a beam through a large net angle. Because the Fresnel coefficient for each reflection depends upon the state of polarization, the whispering-gallery mirror can act both as a polarizer and as a birefringent element. The second, the multilayer polarizing beamsplitter, is a Brewster-angle reflector thin enough to allow partial partial transmission of the incident beam. Its behavior can be surprising; in some cases the same polarization mode is preferred on both reflection and transmission.

  16. Viability of microcomputed tomography to study tropical marine worm galleries in humid muddy sediments

    International Nuclear Information System (INIS)

    Bioturbation is an ecological process driven by organisms, which transports nutrients and gases from air/water to sediment through their galleries, by the time they feed, burrow and/or construct galleries. This exchange is vital to the maintenance of micro and macrobenthic organisms, mainly in muddy flat environments. Species with distinct galleries could create levels of bioturbation, affecting the benthic interactions. In this sense, it is fundamental developing a non-destructive method that permits identifying/quantifying the properties of these galleries. The recent advances in micro-computed tomography are allowing the high resolution 3D images generation. However, once muddy sediments are rich in organic matter and interstitial water, these would lead to motion artifacts which could, in turn, decrease the accuracy of galleries identification/quantification. In this context, the aim of this study was to develop a protocol which combines laboratory experiments and microtomography analysis in order to generate accurate 3D images of the small marine worm's galleries within humid muddy sediments. The sediment was collected at both muddy flats of Surui's and Itaipu lagoon's mangroves (RJ-Brazil), sieved (0.5mm mesh) and introduced with one individual of the marine worm Laeonereis acuta (Nereididae, Polychaeta) in each acrylic corer holders (4.4cm of internal diameter). High energy microtomography scanner was used to obtain 3D images and the setup calibration was 130 kV and 61 mA. Each acquisition image time was among 4h and 6h. Several procedures of drying remained water inside the cores were performed aiming obtaining images without movement artifacts due to circulating water, and this issue was one of the main studied parameter. In order to investigate possible chemical effects, 2ml of formalin (35%) with menthol were added to the surface of the cores. The results show that although the drying time was appropriated, the chemicals created bubbles within the

  17. Viability of microcomputed tomography to study tropical marine worm galleries in humid muddy sediments

    Energy Technology Data Exchange (ETDEWEB)

    Pennafirme, Simone F., E-mail: sipennafirme@gmail.com [Universidade Federal Fluminense (UFF), Niteroi, RJ (Brazil). Inst. de Biologia. Dept. de Biologia Marinha; Machado, Alessandra S.; Lima, Inaya; Suzuki, Katia N.; Lopes, Ricardo T., E-mail: machado@lin.ufrj.br, E-mail: inaya@lin.ufrj.br, E-mail: norisuzuki6@yahoo.com.br, E-mail: ricardo@lin.ufj.br [Coordenacao dos Programas de Pos-Graduacao em Engenharia (COPPE/UFRJ), RJ (Brazil). Lab. de Instrumentacao Nuclear

    2013-07-01

    Bioturbation is an ecological process driven by organisms, which transports nutrients and gases from air/water to sediment through their galleries, by the time they feed, burrow and/or construct galleries. This exchange is vital to the maintenance of micro and macrobenthic organisms, mainly in muddy flat environments. Species with distinct galleries could create levels of bioturbation, affecting the benthic interactions. In this sense, it is fundamental developing a non-destructive method that permits identifying/quantifying the properties of these galleries. The recent advances in micro-computed tomography are allowing the high resolution 3D images generation. However, once muddy sediments are rich in organic matter and interstitial water, these would lead to motion artifacts which could, in turn, decrease the accuracy of galleries identification/quantification. In this context, the aim of this study was to develop a protocol which combines laboratory experiments and microtomography analysis in order to generate accurate 3D images of the small marine worm's galleries within humid muddy sediments. The sediment was collected at both muddy flats of Surui's and Itaipu lagoon's mangroves (RJ-Brazil), sieved (0.5mm mesh) and introduced with one individual of the marine worm Laeonereis acuta (Nereididae, Polychaeta) in each acrylic corer holders (4.4cm of internal diameter). High energy microtomography scanner was used to obtain 3D images and the setup calibration was 130 kV and 61 mA. Each acquisition image time was among 4h and 6h. Several procedures of drying remained water inside the cores were performed aiming obtaining images without movement artifacts due to circulating water, and this issue was one of the main studied parameter. In order to investigate possible chemical effects, 2ml of formalin (35%) with menthol were added to the surface of the cores. The results show that although the drying time was appropriated, the chemicals created bubbles

  18. Using Whispering-Gallery-Mode Resonators for Refractometry

    Science.gov (United States)

    Matsko, Andrey; Savchenkov, Anatoliy; Strekalov, Dmitry; Iltchenko, Vladimir; Maleki, Lute

    2010-01-01

    A method of determining the refractive and absorptive properties of optically transparent materials involves a combination of theoretical and experimental analysis of electromagnetic responses of whispering-gallery-mode (WGM) resonator disks made of those materials. The method was conceived especially for use in studying transparent photorefractive materials, for which purpose this method affords unprecedented levels of sensitivity and accuracy. The method is expected to be particularly useful for measuring temporally varying refractive and absorptive properties of photorefractive materials at infrared wavelengths. Still more particularly, the method is expected to be useful for measuring drifts in these properties that are so slow that, heretofore, the properties were assumed to be constant. The basic idea of the method is to attempt to infer values of the photorefractive properties of a material by seeking to match (1) theoretical predictions of the spectral responses (or selected features thereof) of a WGM of known dimensions made of the material with (2) the actual spectral responses (or selected features thereof). Spectral features that are useful for this purpose include resonance frequencies, free spectral ranges (differences between resonance frequencies of adjacently numbered modes), and resonance quality factors (Q values). The method has been demonstrated in several experiments, one of which was performed on a WGM resonator made from a disk of LiNbO3 doped with 5 percent of MgO. The free spectral range of the resonator was approximately equal to 3.42 GHz at wavelengths in the vicinity of 780 nm, the smallest full width at half maximum of a mode was approximately equal to 50 MHz, and the thickness of the resonator in the area of mode localization was 30 microns. In the experiment, laser power of 9 mW was coupled into the resonator with an efficiency of 75 percent, and the laser was scanned over a frequency band 9 GHz wide at a nominal wavelength of

  19. Contemporary Romanian Art in the United States1

    Directory of Open Access Journals (Sweden)

    Altman Dana

    2014-08-01

    Full Text Available The article discusses the recent international interest in contemporary Romanian art and its growth in market share, with a focus on the United States. The theme is followed thorough in numerous museum exhibitions, increased collector following, art fair presence, gallery representation and auction activity initially in Europe and the United States. The phenomenon is discussed both in the context of the larger international movement conducive to the contemporary art price bubble, and in that of the local socio-economic changes. My chief interest lies in the factors leading up to the entry of post 1989 Romanian art in the global arena as a manifestation of market forces in the field. The analysis follows its grass roots local emergence through non-profit institutions, individual artists, small publications, low budget galleries, as well as the lack of contribution (with few notable exceptions of state institutions, while pointing out the national context of increasing deregulation of social support systems resulting in lack of focus on cultural manifestations. The conclusion is that the recent ascent of contemporary Romanian art (and coincidentally, the award winning contemporary Romanian cinematography is a fortuitous convergence of various factors, among which, increased international mobility and sharing. At the same time, it is also the result of the evolution of various individual artists that pursued a form of art rooted in Romanian artistic tradition but with a focus on the symbolic figurative. The result is a personal semiotics of raising the mundane to extraordinary levels that reconfigured the anxiety of entering a new system into an unmistakable and lasting visual language.

  20. Alive With Art

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Lovers of art who settle in Beijing have a wide set of options as local art museums featuring the best in home-grown and international art are trending right now.The National Art Museum of China and the CAFA (Central Academy of Fine Arts) Art Museum are two of the most important institutions available to feed the art itch.

  1. Art and Finance: Fine Art Derivatives

    Directory of Open Access Journals (Sweden)

    Francesco Strati

    2014-04-01

    Full Text Available This work is intended to introduce a new kind of asset, the so called art asset. This financial tool is an asset whose value is related to an art-work, and in particular to the artist reputation. It will be shown the evaluation of an art asset by using a particular kind of volatility, the α-hedging. This tool normalizes the prices volatility of the art-works of an artist (or an art-movement by a sentiment index referred to the Art Market. At last I shall show how the art assets’ values are related to an art-call option.

  2. Rupestral painting in the superior gallery of Altxerri cave (Aia, Gipuzkoa

    Directory of Open Access Journals (Sweden)

    Jesús ALTUNA

    2010-07-01

    Full Text Available We describe new details of a complex figure made with red paint in a superior gallery of Altxerri cave. The head of a bison with a corniform motif stands out among other strokes of difficult interpretation. This collection of paintings has no correlation with the numerous engravings and black paintings of the main gallery of this cave. There is no access to this superior gallery from the main gallery of the cave so the Paleolithic artist would have gained access through another entry from the mountain that is unknown in the present. Near the collection of paintings described there is a bison vertebra stuck by its spinous apophysis in a crack on the rock. The C14 dating of the vertebra has not been possible due to the lack of collagen in the sample. Underneath this figure, tarsal remains of two individuals of Rupicapra rupicapra were found dated 34195 ± 1235 y 29940 ± 745 BP. The contemporaneity of the remains and the figure cannot be established.

  3. Influence of a gallery on the stresses in the surrounding rock salt

    International Nuclear Information System (INIS)

    This report deals with a numerical analysis of the gallery induced loading. The analysis (finite element program ANSYS) deals with the mechanical loads (stresses and deformation) caused by the rock pressure at the location of the gallery. Most of the anlayses have been performed for a period of 10 years while some cover a period of 100 years. The numerical results indicate that the region where the stress distribution is effected by the presence of the gallery depends strongly on time elapsed since its excavation. Ten years after excavation the region where the equivalent stresses are larger than 1 MPa is extended to ρ=18. For 50 and 100 years the region is extended to ρ=27 and 32. The effect of the gallery on the hydrostatic stress component is not so pronounced. The region in which the hydrostatic stress component deviates more than 1 MPa in the time periods 10, 50 and 100 years is limited to ρ=7, 12 and 15. (orig./HP)

  4. EDZ characterization through electrical tomography: EZ-G experiment in Mont Terri laboratory (gallery 04)

    International Nuclear Information System (INIS)

    The Mont Terri Project is an International Research Project for the Hydrogeological, Geochemical and Geotechnical Characterisation of a Clay Formation (Opalinus Clay). The Mont Terri Rock Laboratory is the Swiss analogue of the Bure underground Laboratory. The project conducted by FORPRO deals with the imaging of the EDZ during the excavation and after. A new Gallery, the 04 Gallery, was excavated in 2004. The first part with a length of about 20 meters was excavated in March 2004 while the 56 meters remaining were excavated between end of August and end of October. The aim of our experiment is to follow the damaging of the wall with time. The electrical tomography in DC provides an image of the wall of the gallery in term of electrical resistivity (or its inverse conductivity). The resistivity increase with damaging because of air filling the fractures and cracks instead of water ( Clays are very dried). The first results of characterisation of the Excavation Damaged Zone (EDZ) in the reconnaissance gallery had given an anisotropy network of cracks and fractures. (authors)

  5. Demonstration of whispering-gallery-mode resonant enhancement of optical forces

    CERN Document Server

    Li, Yangcheng; Limberopoulos, Nicholaos I; Astratov, Vasily N

    2015-01-01

    We experimentally studied whispering-gallery modes(WGMs) and demonstrated resonance enhancement of optical forces evanescently exerted on dielectric microspheres. We showed that the resonant light pressure can be used for optical sorting of microparticles with extraordinary uniform resonant properties that is unachievable by conventional sorting techniques.

  6. The Dynamics of Visual Art Dialogues: Experiences to Be Used in Hospital Settings with Visual Art Enrichment

    Directory of Open Access Journals (Sweden)

    Britt-Maj Wikström

    2011-01-01

    Full Text Available Objectives. Given that hospitals have environmental enrichment with paintings and visual art arrangement, it would be meaningful to develop and document how hospital art could be used by health professionals. Methods. The study was undertaken at an art site in Sweden. During 1-hour sessions, participants (=20 get together in an art gallery every second week five times. Results. According to the participants a new value was perceived. From qualitative analyses, three themes appear: raise association, mentally present, and door-opener. In addition 72% of the participants reported makes me happy and gives energy and inspiration, and 52% reported that dialogues increase inspiration, make you involved, and stimulate curiosity. Conclusion. The present study supported the view that visual art dialogue could be used by health care professionals in a structured manner and that meaningful art stimulation, related to a person’s experiences, could be of importance for the patients. Implementing art dialogues in hospital settings could be a fruitful working tool for nurses, a complementary manner of patient communication.

  7. Art Therapy Teaching as Performance Art

    Science.gov (United States)

    Moon, Bruce L.

    2012-01-01

    This viewpoint asserts that art therapy education is a form of performance art. By designing class sessions as performance artworks, art therapy educators can help their students become more fully immersed in their studies. This view also can be extended to conceptualizing each semester--and the entire art therapy curriculum--as a complex and…

  8. Pre-excavation grouting design, results and evaluation of a gallery at great depth in Mizunami Underground Research Laboratory

    International Nuclear Information System (INIS)

    Pre-excavation grouting of shafts and galleries has been conducted during the construction of Mizunami Underground Research Laboratory in the aspect of safe works and reducing the discharge treatment of the water inflow. The grouting methodology has been simultaneously studied and developed as there is less experience of grouting in low conductive rock with high water pressure, especially in Japan. Ahead of excavating GL.-500 m gallery on the ventilation shaft side, grouting design was performed based on the estimation of water inflow by the pilot-boring investigations and the design was properly revised during the campaign. The gallery satisfied the inflow requirement with good sealing effect. (author)

  9. Building a Community for Art and Geoscience

    Science.gov (United States)

    Eriksson, S. C.; Ellins, K. K.

    2014-12-01

    Several new avenues are in place for building and supporting a community of people interested in the art and geoscience connections. Although sessions advocating for art in teaching geoscience have been scattered through geoscience professional meetings for several decades, there is now a sustained presence of artists and geoscientists with their research and projects at the annual meeting of the American Geophysical Union. In 2011, 13 abstracts were submitted and, in 2013, 20 talks and posters were presented at the annual meeting. Participants have requested more ways to connect with each other as well as advocate for this movement of art and science to others. Several words can describe new initiatives to do this: Social, Collaborative, Connected, Informed, Networked, and Included. Social activities of informal dinners, lunches, and happy hour for interested people in the past year have provided opportunity for presenters at AGU to spend time getting to know one another. This has resulted in at least two new collaborative projects. The nascent Bella Roca and more established Geology in Art websites and their associated blogs at www.bellaroca.org and http://geologyinart.blogspot.com, respectively are dedicated to highlighting the work of artists inspired by the geosciences, connecting people and informing the community of exhibits and opportunities for collaboration. Bella Roca with its social media of Facebook (Bella Roca) and Twitter (@BellRocaGeo), is a direct outgrowth of the recent 2012 and 2013 AGU sessions and, hopefully, can be grown and sustained for this community. Articles in professional journals will also help inform the broader geoscience community of the benefit of engaging with artists and designers for both improved science knowledge and communication. Organizations such as Leonardo, the International Society for the Arts, Sciences and Technology, the Art Science Gallery in Austin, Texas also promote networking among artists and scientists with

  10. Daryl Lindsay and the appreciation of indigenous art: no mere collection of interesting curiosities

    Directory of Open Access Journals (Sweden)

    Benjamin Thomas

    2011-06-01

    Full Text Available In an era when the acceptance of Indigenous art within our galleries is assumed confidently as self-evident, it is easy to overlook how such a remarkable transformation occurred almost within the space of a decade. Even more misunderstood is the prominent role Daryl Lindsay played in the early acceptance and legitimisation of Australian indigenous art. Within months of becoming director of the NGV, Lindsay prepared a major exhibition of primitive art, including Australian indigenous works, an event that became the defining catalyst for a cultural shift towards indigenous art. In the early 1960s, in the influential role of chair of the Commonwealth Art Advisory Board, Lindsay advocated for the inclusion of Australian Aboriginal art, chosen for aesthetic merit as a dedicated collecting stream in the future NGA. It was a decisive objective, and one that was a central tenet of his vision for Australian art. Yet it is clear that Lindsays role in encouraging the re-evaluation of Australian Indigenous art remains poorly understood within the field of Australian gallery practice. Even within recent years, art historians have misattributed later events as being the catalyst for change, either positioning Lindsay as a reactionary late in his term as director, or placing him outside the formative years of the shift in attitude altogether. This paper explores Lindsays young adult experiences in Central Australia, the backdrop for his empathy with Australian Indigenous culture, and the remarkable shift in Australian Art Museum practice undertaken during his directorship that saw Indigenous artefacts exhibited and appreciated for their artistic merit.

  11. Towards art content in original graphic arts

    OpenAIRE

    Grdina, Sonja

    2011-01-01

    Contemporary Graphic art defines numerous graphic art techniques; from classical original graphic art techniques to the new media techniques. The new media reproduction and communication capacity influences contemporary art works in such way that more attention is on non-artistic content, while artistic content with its visual efficiency becomes less important. Reproductibility is one of the non-artistic contents which plays a key role in original graphic arts, where it is a means of making o...

  12. ARTS@CERN Dance Session At Restaurant 1

    CERN Multimedia

    Anna Pantelia

    2012-01-01

    Walls and floors are the surfaces on which the German ar5st Gerhard Mayer draws large scale works. From art galleries to public buildings in Europe and the US, including even churches, Gerhard Mayer makes site specific drawings, with energe5c flowing lines of ink. He is par5cularly aEracted to drawing clouds, twisted swirls , shapes and eddies, reflec5ng flow in the micro and macro world. He also works in sculpture and pain5ng too – crea5ng complex puzzles and collages with an intensity reminiscent of Brueghel. On the occasion of his visit to CERN curated by Arts@CERN, Gerhard Mayer will talk about his love of drawing, his aErac5on to making work in public spaces and present his work for Nürnbergs Neues Museum called LHC. See examples of Gerhard Mayer’s work here hEp://www.gerhard-­‐mayer.com/

  13. Guerilla Science: Mixing Science with Art, Music and Play

    Science.gov (United States)

    Rosin, Mark; Koski, Olivia; Science, Guerilla

    2013-01-01

    Guerilla Science is an international organization at the boundaries of adult/teen science education and live entertainment. Dedicated to science by stealth we mix science with art, music and play in unconventional environments like music festivals, art galleries, banquets, department stores and theaters. Over the last five years, Guerilla Science has impacted over 11 thousand members of the public and worked with more than one hundred science-partners. Findings from three external evaluations confirm that these events have been successful, and Guerilla Science has been featured in international media including Wired, Scientific American, Getty Images, and the BBC. In this presentation, the US director, Mark Rosin, will discuss Guerilla Science's astronomical outreach efforts, including events like the Intergalactic Travel Bureau, Extra-Terrestrial Broadcasting, and Sex on other Planets. He will also discuss how to get involved with the project.

  14. The Dallas Pavilion: Contemporary Art and Urban Identity

    Directory of Open Access Journals (Sweden)

    Jaspar Joseph-Lester

    2014-02-01

    Full Text Available In the following statement, Jaspar Joseph-Lester and Michael Corris lay out the intentions of their project for the Dallas Pavilion at the 55th Venice Biennale in 2013. By contrast with the national pavilions for which the Biennale is renowned, this pavilion represented a city, and was published in the form of a book rather than temporarily staged on the interior of a building. Available to visitors from a stall placed just outside the American pavilion in the Giardini, this little book is a curated selection of works and texts, intervening within the Biennale’s official structure of curated national pavilions. It colourfully surveys the expansive art world of Dallas’ artists, critics, curators, collectors, galleries, museums and educators, while raising questions about contemporary urban identity vis-à-vis an aging architectural apparatus such as Venice’s international art exposition.

  15. Nest-Gallery Development and Caste Composition of Isolated Foraging Groups of the Drywood Termite, Incisitermes minor (Isoptera: Kalotermitidae).

    Science.gov (United States)

    Himmi, S Khoirul; Yoshimura, Tsuyoshi; Yanase, Yoshiyuki; Oya, Masao; Torigoe, Toshiyuki; Akada, Masanori; Imadzu, Setsuo

    2016-01-01

    An X-ray computed-tomographic examination of nest-gallery development from timbers naturally infested by foraging groups of Incisitermes minor colonies was conducted. This study documents the colonization process of I. minor to new timbers and how the isolated groups maintain their nest-gallery system. The results suggested that development of a nest-gallery within a suitable wood item is not random, but shows selection for softer substrate and other adaptations to the different timber environments. Stigmergic coordinations were expressed in dynamic changes of the nest-gallery system; indicated by fortification behavior in sealing and re-opening a tunnel approaching the outer edge of the timber, and accumulating fecal pellets in particular chambers located beneath the timber surface. The study also examines the caste composition of isolated groups to discover how I. minor sustains colonies with and without primary reproductives. PMID:27455332

  16. Investigations on gallery patterns of the Almond bark bettle (Scolytus amygdali Guerin-Méneville, 1847 (Coleoptera, Curculionidae in Tunisia

    Directory of Open Access Journals (Sweden)

    Asma Zeiri

    2016-01-01

    Full Text Available The Almond bark beetle Scolytus amygdali Guerin-Meneville, 1847 is a serious beetle that can affect important economic crops in Tunisia. The species is morphologically similar to other bark beetles attacking fruit trees such as Scolytus mediterraneus. The gallery systems of both species are also generally hard to differentiate. A detailed study about gallery systems has carried out in the central region of Tunisia in order to give more details on beetle damage under the bark. Maternal and larval galleries from infested branches of almond were examined and measured. It is hoped that these details of the shape and measurements of the gallery systems of Scolytus amygdali will facilitate the identification of infestations of almond bark beetles attacking fruit trees in Tunisia.

  17. Shooting Gallery Attendance among IDUs in Tijuana and Ciudad Juarez, Mexico: Correlates, Prevention Opportunities, and the Role of the Environment

    OpenAIRE

    Philbin, Morgan; Pollini, Robin A.; Ramos, Rebecca; Lozada, Remedios; Kimberly C Brouwer; Ramos, Maria Elena; Firestone-Cruz, Michelle; Case, Patricia; Steffanie A Strathdee

    2008-01-01

    We identified factors associated with shooting gallery attendance among injection drug users (IDUs) in two Mexico–US border cities. IDUs in Tijuana (n = 222) and Ciudad Juarez (n = 205), Mexico, who were ≥18 years and injected illicit drugs in the last month were recruited using respondent-driven sampling (RDS). An interviewer-administered survey collected sociodemographic and behavioral data. Logistic regression was used to examine correlates of shooting gallery attendance in each of the two...

  18. Fiber-optic add-drop device based on a silica microsphere-whispering gallery mode system

    OpenAIRE

    Ming CAI; Hunziker, Guido; Vahala, Kerry J.

    1999-01-01

    An all-optical passive four-port system including a fused silica microsphere and two tapered fibers is proposed and demonstrated for the application as a channel adding-dropping device. It is shown that channels can be selectively exchanged between two fibers by coupling to a whispering gallery mode resonance in the microsphere. Finesse in excess of 11150 is measured for the loaded whispering gallery modes.

  19. Art: What Matters?

    Science.gov (United States)

    Friend, Nicholas

    2005-01-01

    Is art merely an adjunct to the serious business of life? Is there a secret ingredient that makes some art more worthwhile than other art? Does art have something to offer that makes its pursuit or purchase worthwhile, or is it simply an outlet for spare capital? Does art really matter at all? (Contains 5 figures.)

  20. The Art of Teaching.

    Science.gov (United States)

    Learning, 1996

    1996-01-01

    Discusses the benefits of integrating the arts into education to help students learn more and better. The paper looks at advantages to including music, visual arts, dance, and theater arts in the classroom, explaining the part that arts play in assessment. Resources for integrated arts activities are included. (SM)

  1. Interfacing whispering-gallery microresonators and free space light with cavity enhanced Rayleigh scattering

    CERN Document Server

    Zhu, Jiangang; Yilmaz, Huzeyfe; Peng, Bo; Dong, Mark; Tomes, Matthew; Carmon, Tal; Yang, Lan

    2014-01-01

    Whispering gallery mode resonators (WGMRs) take advantage of strong light confinement and long photon lifetime for applications in sensing, optomechanics, microlasers and quantum optics. However, their rotational symmetry and low radiation loss impede energy exchange between WGMs and the surrounding. As a result, free-space coupling of light into and from WGMRs is very challenging. In previous schemes, resonators are intentionally deformed to break circular symmetry to enable free-space coupling of carefully aligned focused light, which comes with bulky size and alignment issue that hinder the realization of compact WGMR applications. Here, we report a new class of nanocouplers based on cavity enhanced Rayleigh scattering from nano-scatterer(s) on resonator surface, and demonstrate whispering gallery microlaser by free-space optical pumping of an Ytterbium doped silica microtoroid via the scatterers. This new scheme will not only expand the range of applications enabled by WGMRs, but also provide a possible r...

  2. Identifying modes of large whispering-gallery mode resonators from the spectrum and emission pattern

    DEFF Research Database (Denmark)

    Schunk, Gerhard; Fuerst, Josef U.; Förtsch, Michael;

    2014-01-01

    Identifying the mode numbers in whispering-gallery mode resonators (WGMRs) is important for tailoring them to experimental needs. Here we report on a novel experimental mode analysis technique based on the combination of frequency analysis and far-field imaging for high mode numbers of large WGMRs....... The radial mode numbers q and the angular mode numbers p = l-m are identified and labeled via far-field imaging. The polar mode numbers l are determined unambiguously by fitting the frequency differences between individual whispering gallery modes (WGMs). This allows for the accurate determination of...... the geometry and the refractive index at different temperatures of the WGMR. For future applications in classical and quantum optics, this mode analysis enables one to control the narrow-band phase-matching conditions in nonlinear processes such as second-harmonic generation or parametric down...

  3. Electro-pumped whispering gallery mode ZnO microlaser array

    International Nuclear Information System (INIS)

    By employing vapor-phase transport method, ZnO microrods are fabricated and directly assembled on p-GaN substrate to form a heterostructural microlaser array, which avoids of the relatively complicated etching process comparing previous work. Under applied forward bias, whispering gallery mode ZnO ultraviolet lasing is obtained from the as-fabricated heterostructural microlaser array. The device's electroluminescence originates from three distinct electron-hole recombination processes in the heterojunction interface, and whispering gallery mode ultraviolet lasing is obtained when the applied voltage is beyond the lasing threshold. This work may present a significant step towards future fabrication of a facile technique for micro/nanolasers

  4. Surface optomechanics: Calculating optically excited acoustical whispering gallery modes in microspheres

    CERN Document Server

    Zehnpfennig, John; Tomes, Matthew; Carmon, Tal

    2011-01-01

    Stimulated Brillouin scattering recently allowed experimental excitation of surface acoustic resonances in micro-devices, enabling vibration at rates in the range of 50 MHz to 12 GHz. The experimental availability of such mechanical whispering gallery modes in photonic-MEMS raises questions on their structure and spectral distribution. Here we calculate the form and frequency of such vibrational surface whispering gallery modes, revealing diverse types of surface vibrations including longitudinal, transverse, and Rayleigh-type deformations. We parametrically investigate these various modes by changing their orders in the azimuthal, radial, and polar directions to reveal different vibrational structures including mechanical resonances that are localized near the interface with the environment where they can sense changes in the surroundings.

  5. In-fiber whispering-gallery-mode resonator fabricated by femtosecond laser micromachining.

    Science.gov (United States)

    Shi, Leilei; Zhu, Tao; Huang, Dongmei; Liu, Min; Deng, Ming; Huang, Wei

    2015-08-15

    An in-fiber whispering-gallery-mode resonator fabricated by femtosecond laser micromachining is demonstrated. The cylinder resonator cavity is fabricated by scanning the D-fiber cladding with infrared femtosecond pulses along a cylindrical trace with a radius of 25 μm and height of 20 μm. Quality factor on the order of 10(3) is achieved by smoothing the cavity surface with an ultrasonic cleaner, which is mainly limited by the surface roughness of several hundred nanometers. Resonant characteristics and polarization dependence of the proposed resonator are also studied in detail. Our method takes a step forward in the integration of whispering-gallery-mode resonators. PMID:26274656

  6. Preparation of the PRACLAY demonstration and confirmation experiments: construction of the PRACLAY gallery

    International Nuclear Information System (INIS)

    The PRACLAY demonstration and confirmation experiments contribute to the Belgian research, development and demonstration programme to assess the safety and feasibility of geological disposal of radioactive waste in Boom Clay. Within this programme, the large scale PRACLAY heater experiment aims to verify that Boom Clay is suitable to host heat emitting radioactive waste. A 35 m long section of an experimental gallery in the underground research facility HADES (at 225 m depth) will be heated up to 95 degrees Celsius during ten years. The heater experiment focuses on the response of the host rock to the thermal load. The figure below shows the experimental lay-out. In 2007, an important milestone was reached with the realisation of the PRACLAY gallery (45 m long, external diameter 2.5 m)

  7. Dynamic Fano-like resonances in erbium-doped whispering-gallery-mode microresonators

    Energy Technology Data Exchange (ETDEWEB)

    Lei, Fuchuan [State Key Laboratory of Low-dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084 (China); Department of Electrical and Systems Engineering, Washington University, St. Louis, Missouri 63130 (United States); Peng, Bo; Özdemir, Şahin Kaya, E-mail: ozdemir@ese.wustl.edu; Yang, Lan, E-mail: yang@ese.wustl.edu [Department of Electrical and Systems Engineering, Washington University, St. Louis, Missouri 63130 (United States); Long, Gui Lu [State Key Laboratory of Low-dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084 (China)

    2014-09-08

    We report Fano-like asymmetric resonances modulated by optical gain in a whispering-gallery-mode resonator fabricated from erbium-doped silica. A time-dependent gain profile leads to dynamically varying sharp asymmetric resonances with features similar to Fano resonances. Depending on the scan speed of the frequency of the probe laser and the pump-probe power ratio, transmission spectra of the active microcavity exhibit a resonance dip, a resonance peak, or a Fano-like resonance.

  8. Hybrid Electron Spin Resonance and Whispering Gallery Mode Resonance Spectroscopy of Fe3+ in Sapphire

    OpenAIRE

    Benmessai, Karim; Farr, Warrick G.; Creedon, Daniel L.; Reshitnyk, Yarema; Floch, Jean-Michel Le; Duty, Timothy; Tobar, Michael E.

    2013-01-01

    The development of a new era of quantum devices requires an understanding of how paramagnetic dopants or impurity spins behave in crystal hosts. Here, we describe a new spectroscopic technique which uses traditional Electron Spin Resonance (ESR) combined with the measurement of a large population of electromagnetic Whispering Gallery (WG) modes. This allows the characterization of the physical parameters of paramagnetic impurity ions in the crystal at low temperatures. We present measurements...

  9. Whispering-gallery-mode analysis of phase-matched doubly resonant second-harmonic generation

    Science.gov (United States)

    Dumeige, Yannick; Féron, Patrice

    2006-12-01

    We propose a coupled modes analysis of second-harmonic generation in microdisk resonators. We demonstrate that whispering gallery modes can be used to obtain a combination of modal and geometrical quasi-phase-matching (without domain inversion) to obtain efficient conversion in isotropic and nonferroelectric materials such as III-V semiconductor compounds. Finally we use an analytical model to describe the coupling between a bus waveguide and the nonlinear microdisk to achieve an optimization scheme for practical configuration.

  10. Whispering-gallery-mode analysis of phase-matched doubly resonant second-harmonic generation

    International Nuclear Information System (INIS)

    We propose a coupled modes analysis of second-harmonic generation in microdisk resonators. We demonstrate that whispering gallery modes can be used to obtain a combination of modal and geometrical quasi-phase-matching (without domain inversion) to obtain efficient conversion in isotropic and nonferroelectric materials such as III-V semiconductor compounds. Finally we use an analytical model to describe the coupling between a bus waveguide and the nonlinear microdisk to achieve an optimization scheme for practical configuration

  11. Quantum information transfer with nitrogen-vacancy centers coupled to a whispering-gallery microresonator

    OpenAIRE

    Li, Pengbo; Gao, Shaoyan; Li, Fuli

    2010-01-01

    We propose an efficient scheme for the realization of quantum information transfer and entanglement with nitrogen-vacancy (NV) centers coupled to a high-Q whispering-gallery mode (WGM) microresonator. We show that, based on the effective dipole-dipole interaction between the NV centers mediated by the WGM, quantum information can be transferred between the NV centers through Raman transitions combined with laser fields. This protocol may open up promising possibilities for quantum communicati...

  12. Poro Hypo Plastic analysis of the progressive excavation of the Mol URL connecting Gallery

    OpenAIRE

    Desrues, Jacques; Bésuelle, Pierre; Coll, Cécile; Collin, Frédéric; Li, Xiang Ling

    2006-01-01

    In the framework of a Euratom research program devoted to Nuclear Waste deposition security assessment, a numerical simulation of the excavation of a gallery in the Boom Clay layer at Mol (Belgium) has been performed In order to model the progressive excavation and lining installation process, a special sequence of desactivation/activation of sets of elements was elaborated. In particular, this numerical strategy allowed to take into account the fact that, due to the deformation of the mas...

  13. Optical microsphere resonators: optimal coupling to high-Q whispering gallery modes

    OpenAIRE

    Gorodetsky, Michael L.; Ilchenko, Vladimir S.

    1998-01-01

    A general model is presented for coupling of high-$Q$ whispering-gallery modes in optical microsphere resonators with coupler devices possessing discrete and continuous spectrum of propagating modes. By contrast to conventional high-Q optical cavities, in microspheres independence of high intrinsic quality-factor and controllable parameters of coupling via evanescent field offer variety of regimes earlier available in RF devices. The theory is applied to the earlier-reported data on different...

  14. Cascaded Brillouin lasing in monolithic barium fluoride whispering gallery mode resonators

    OpenAIRE

    Lin, Guoping; Diallo, Souleymane; Saleh, Khaldoun; Martinenghi, Romain; Beugnot, Jean-Charles; Sylvestre, Thibaut; Chembo, Yanne K.

    2015-01-01

    We report the observation of stimulated Brillouin scattering and lasing at 1550~nm in barium fluoride (BaF$_2$) crystal. Brillouin lasing was achieved with ultra-high quality ($Q$) factor monolithic whispering gallery mode (WGM) mm-size disk resonators. Overmoded resonators were specifically used to provide cavity resonances for both the pump and all Brillouin Stokes waves. Single and multiple Brillouin Stokes radiations with frequency shift ranging from $8.2$ GHz up to $49$ GHz have been gen...

  15. Orchid bee (Hymenoptera: Apidae) community from a gallery forest in the Brazilian Cerrado

    OpenAIRE

    Francinaldo S Silva

    2012-01-01

    The orchid bees are a very important group of pollinators distributed in the Neotropics. Although a lot of studies concerning male euglossine bees have been done in this region, few works have so far been carried out in the Cerrado biome. This manuscript has the main objective to present the orchid bee community from a Gallery Forest in the Northeastern Brazilian Cerrado landscape, taking account the species composition, abundance, seasonality and hourly distribution. Male euglossine bees wer...

  16. Simultaneous cooling of coupled mechanical oscillators using whispering gallery mode resonances

    OpenAIRE

    Y.L. Li; Millen, J.; Barker, P. F.

    2016-01-01

    We demonstrate simultaneous center-of-mass cooling of two coupled oscillators, consisting of a microsphere-cantilever and a tapered optical fiber. Excitation of a whispering gallery mode (WGM) of the microsphere, via the evanescent field of the taper, provides a transduction signal that continuously monitors the relative motion between these two microgram objects with a sensitivity of 3 pm. The cavity enhanced optical dipole force is used to provide feedback damping on the motion of the micro...

  17. Macroscopic Center-of-mass Cooling using Whispering Gallery Mode Resonances

    OpenAIRE

    Li, Ying Lia; Millen, James; Barker, P. F.

    2015-01-01

    We demonstrate simultaneous center-of-mass cooling of two coupled oscillators, consisting of a microsphere-cantilever and a tapered optical fiber. Excitation of a whispering gallery mode (WGM) of the microsphere, via the evanescent field of the taper, provides a transduction signal that continuously monitors the relative motion between these two microgram objects with a sensitivity of 3\\,pm. The cavity enhanced optical dipole force is used to provide feedback damping on the motion of the micr...

  18. Performance of Eudragit Coated Whispering Gallery Mode Resonator-Based Immunosensors

    OpenAIRE

    Franco Cosi; Silvia Soria; Gualtiero Nunzi Conti; Francesco Baldini; Ambra Giannetti; Simone Berneschi

    2012-01-01

    Whispering gallery mode resonators (WGMR) are an efficient tool for the realization of optical biosensors. A high Q factor preservation is a crucial requirement for good biosensor performances. In this work we present an Eudragit®L100 coated microspherical WGMR as an efficient immunosensor. The developed resonator was morphologically characterized using fluorescence microscopy. The functionalization process was tuned to preserve the high Q factor of the resonator. The protein binding assay wa...

  19. Semiochemical emission from individual galleries of the southern pine beetle, (Coleoptera: Curculionidae: Scolytinae), attacking standing trees.

    Science.gov (United States)

    Pureswaran, Deepa S; Sullivan, Brian T

    2012-02-01

    We collected, identified, and quantified volatiles arising from individual gallery entrances of the monogamous bark beetle Dendroctonus frontalis Zimmermann. Samples were collected while the insects were mass attacking mature loblolly pines (Pinus taeda L.) in an established infestation in western Mississippi, 1 August through 3 October 2005. Following volatile sample collection, the entrances were dissected and categorized according to those that 1) contained a solitary female (the gallery initiating sex), 2) contained a pair that had not yet produced an egg gallery, 3) led to an egg gallery with niches and/or eggs, or 4) represented failed attacks (either abandoned or containing dead beetles). The greatest mean release rate of the female-produced aggregation pheromone components frontalin (74 ng/h) and trans-verbenol (0.35 microg/h) was detected from entrances of solitary females, whereas the highest mean quantities of the male-produced multifunctional pheromone components endo-brevicomin (18 ng/h) and verbenone (0.15 microg/h) were detected from entrances of preoviposition beetle pairs. Alpha-pinene, a host-produced monoterpene that functions as a synergist for the aggregation attractant for D. frontalis, was detected from entrances of solitary females and preoviposition pairs at a rate of 0.6 mg/h, or 3-4 orders of magnitude greater than the insect-produced components of the attractant. Our results indicate that the release rates of pheromone components used in published field studies of the chemical ecology of D. frontalis (generally > 0.1 mg/h) represent thousands of 'attack equivalents' or production rates on the scale of a beetle mass attack on a single host. Additionally, our data suggest that the loss in attractiveness of host tissue fully colonized by D. frontalis is because of the disappearance of attractants rather than an increase in inhibitors. PMID:22420266

  20. Spectral singularities and whispering gallery modes of a cylindrical gain medium

    OpenAIRE

    Mostafazadeh, Ali; Sarısaman, Mustafa

    2013-01-01

    PHYSICAL REVIEW A 87, 063834 (2013) Spectral singularities and whispering gallery modes of a cylindrical gain medium Ali Mostafazadeh* and Mustafa Sarısaman Department of Mathematics, Koc¸ University, Sarıyer 34450, Istanbul, Turkey (Received 11 February 2013; published 20 June 2013) Complex scattering potentials can admit scattering states that behave exactly like a zero-width resonance. Their energy is what mathematicians call a spectral singularity. This phenomenon admits...

  1. Art of A.R.T.

    OpenAIRE

    Furse, Anna F. D.

    2003-01-01

    "Art of A.R.T." investigates the artistic and aesthetic potential of Assisted Reproduction Technology (A.R.T.) from a personal perspective. In so doing, she highlights the cultural tendency to marginalise sub-fertile women and describes the difficulties and prejudices women are confronted with when undergoing a fertilisation treatment. Furse complements her unusual theoretical and practical exploration of A.R.T. with a presentation of her current performance piece Yerma's Eggs and the impact ...

  2. National ART Success Rates

    Science.gov (United States)

    ... ART and Birth Defects ART and Autism 2013 Assisted Reproductive Technology National Summary Report Recommend on Facebook Tweet Share ... live-birth rate? [PDF - 1.37MB] Section 2: ART Cycles using fresh nondonor eggs or embryos What ...

  3. Medical Art Therapy

    OpenAIRE

    Aydın, Birgül

    2012-01-01

    Art therapy is a form of expressive therapy that uses art materials. Art therapy combines traditional psychotherapeutic theories and techniques with an understanding of the psychological aspects of the creative process, especially the affective properties of the different art materials. Medical art therapy has been defined as the clinical application of art expression and imagery with individuals who are physically ill, experiencing physical trauma or undergoing invasive or aggressive medical...

  4. Evolution of P and S waves in the EDZ around the Praclay gallery

    International Nuclear Information System (INIS)

    Document available in extended abstract form only. In 2007, the HADES underground research facility in Mol, Belgium completed construction of the PRACLAY gallery where a long-term heater experiment will be performed to simulate the effects of heating generated by high-level nuclear waste on the properties of the Boom Clay host formation. Prior to construction, a micro-seismic monitoring system was installed in the clay to monitor the effects of excavation in the near, far field around the gallery. After completion of the gallery, the monitoring system was extended to include measurements in the near field as well to monitor the excavated damaged zone (EDZ). In total, there are 23 transmitters (T) and 19 receivers (R). They are installed in three boreholes at depths varying between 0.5 m and 14 m, and at the interface between the gallery lining and the clay host formation. A data acquisition (DAQ) system operates daily to record both self-generated seismic transmission signals as well as acoustic-emission (AE) P- and S-wave signals. The transmitters and receivers consist of piezoelectric transducers that operate mainly in the frequency range between 1 and 50 kHz. This relatively high-frequency range of the sensors, which lies above the applicable S-wave frequency, makes it difficult to measure S waves with the current installation. To improve the generation and detection of S waves a new high-energy seismic hammer is being constructed, which will be tested as part of the MoDeRn project. The new seismic hammer is designed for installation in a small-diameter borehole and can be oriented to optimize signal energy and travel path geometry. The hammer will be tested in the current setup as well as with accelerometers, which operate at lower frequencies than the current piezoelectric sensors. This paper presents and discusses the long-term evolution of P- and S-wave velocities measured both in the near field and near far field around the PRACLAY gallery, and reports on

  5. Geophysical monitoring of the EDZ during a gallery excavation in the Mont Terri URL: electrical measurements

    International Nuclear Information System (INIS)

    Document available in extended abstract form only. In the Mont Terri Underground Rock Laboratory, the excavation of the gallery Ga08 provided a unique opportunity to monitor the excavation damaged zone (EDZ) in the Opalinus clay, at time scales ranging from hours to months. The excavation of the gallery Ga08 has started from the northern end of the URL and has progressed towards the South, ending by the junction with the end of the gallery Ga04. Several geophysical and geochemical methods were performed from the end-face of the gallery Ga04, to observe the evolution of the rock mass located in the so-called EZ-G08 section during the progress of the excavation. Among these methods, electrical cross-hole measurements were performed to monitor the electrical resistivity in the section, during the last steps of the excavation. Experimental setup Four horizontal boreholes, 8 m long and 56 mm in diameter, were equipped with lines of 64 electrodes equally spaced every 5 cm. First, between the 1 and the 24 of July 2008, these lines of electrodes were located deeply in the boreholes (between 5 and 8 m from the Ga04 face), then between the 24 of July and the 7 of August 2008, they were located closer to the face (between 0 and 3 m). During the first period, the Ga08 front reached the end of the EZ-G08 section at 8 m from the Ga04 face, then the excavation stopped during two weeks before the last step begun during the second period (Fig. 3 bottom). Daily, one Wenner profile was performed in each borehole, and numerous cross-hole measurements were performed between the 6 possible pairs of boreholes spaced 1 to 2 meters. Temporal evolution of electrical resistivity Generally, these cross-hole measurements show slow variations of electrical resistivity, related with damage by opening of micro-fissures (increase of resistivity) followed by a slow re-saturation (decrease of resistivity) probably related to the high humidity content present in the air of the gallery during Summer

  6. Species composition, diversity, and vegetation structure in a gallery forest-cerrado sensu stricto transition zone in eastern Mato Grosso, Brazil

    OpenAIRE

    Eddie Lenza; Josias O. Santos; Leonardo Maracahipes-Santos

    2015-01-01

    ABSTRACTWe investigated the existence of an ecotone in the species composition, diversity and vegetation structure in the transition between gallery forest and cerrado sensu strictoin central Brazil. We tested two hypotheses: 1) a ecotone can be found between gallery forest and cerrado; 2) a gradient exists in the species composition of the cerrado. We established three parallel transects of 5 m × 350 m running between gallery forest and cerrado, which were divided into subplots of 5 m × 10 m...

  7. Demonstration of LED Retrofit Lamps at the Jordan Schnitzer Museum of Art

    Energy Technology Data Exchange (ETDEWEB)

    Miller, Naomi J.

    2011-09-01

    The Jordan Schnitzer Museum of Art in Eugene, Oregon, houses a remarkable permanent collection of Asian art and antiquities, modern art, and sculpture, and also hosts traveling exhibitions. In the winter and spring of 2011, a series of digital photographs by artist Chris Jordan, titled "Running the Numbers," was exhibited in the Coeta and Donald Barker Special Exhibitions Gallery. These works graphically illustrate waste (energy, money, health, consumer objects, etc.) in contemporary culture. The Bonneville Power Administration and the Eugene Water and Electricity Board provided a set of Cree 12W light-emitting diode (LED) PAR38 replacement lamps (Cree LRP38) for the museum to test for accent lighting in lieu of their standard Sylvania 90W PAR38 130V Narrow Flood lamps (which draw 78.9W at 120V). At the same time, the museum tested LED replacement lamps from three other manufacturers, and chose the Cree lamp as the most versatile and most appropriate color product for this exhibit. The lamps were installed for the opening of the show in January 2011. This report describes the process for the demonstration, the energy and economic results, and results of a survey of the museum staff and gallery visitors on four similar clusters of art lighted separately by four PAR38 lamps.

  8. “It felt a little like being let into a secret– “ A community-influenced museum exhibition on Technical Art History

    DEFF Research Database (Denmark)

    Wadum, Jørgen; Knap, Frederik; Haack Christensen, Anne; Tempest, Hannah; Larsen, Berit Anne

    2014-01-01

    Netherlandish paintings from the 16th century. Instead of designing the exhibition based on our long experience as a national gallery, we collaborated with a group of twenty young volunteer art pilots from the Young People's Art Lab to design the show based on their interpretation and perception of the expert...... Bruegel revealed the surprising results of their studies. It offered a rare opportunity to gain insight into the sophisticated methods used to examine art. The exhibition looked like a set-up for forensic detective work, but was in fact an exhibition about technical and art historical research into four......'s examinations. Twenty art pilots spent six months exploring the conservators’ world, materials, techniques, and scientific equipment. The results of the research was translated into an exhibition created through collaboration between the art pilots, conservators, interaction designers, and art interpreters from...

  9. ART 100 Courses Tutorial / indigohelp

    OpenAIRE

    thanu

    2015-01-01

    ART 100 Week 1 Individual Assignment Experience the Art (2 Papers)   ART 100 Week 1 concept   ART 100 Week 2 concept   ART 100 Week 2 Individual Assignment How the Visual Arts Communicate (Option A Paper)   ART 100 Week 2 Individual Assignment How the Visual Arts Communicate (Option B Paper)   ART 100 Week 3 Individual Assignment The performing Art and Inspiration (2 Papers)   ART 100 Week 4 Individual Assignment Sy...

  10. ART 125 Courses Tutorial / indigohelp

    OpenAIRE

    thanu

    2015-01-01

    ART 125 Week 1 Individual Assignment Pop Culture and the Arts Paper ART 125 Week 2 Individual Assignment Trends Paper ART 125 Week 3 Individual Assignment Globalization of Art and Pop Culture ART 125 Week 3 Learning Team Assignment Ethical Issues in Art and Popular Culture Outline ART 125 Week 4 Individual Assignment Print Art and Advertising Paper ART 125 Week 5 Individual Assignment Electronic Media Effects Paper ART 125 Week 5 Learning Team Assignment Ethical Issues...

  11. Arts Education Beyond Art : Teaching Art in Times of Change

    NARCIS (Netherlands)

    van Heusden, Bernard; Gielen, Pascal

    2015-01-01

    People and societies thrive on a versatile and imaginative awareness. Yet the critical debate on arts education is still too often about the qualities of artefacts and technical skills, and tends to neglect issues such as the critical function of the arts in society, artistic cognition and cognitive

  12. Taking the Arts Seriously

    DEFF Research Database (Denmark)

    Chemi, Tatiana

    what makes art special in an anthropologic and evolutionary biologic point of view. Cases on the emerging field of arts-in-business in Denmark.......what makes art special in an anthropologic and evolutionary biologic point of view. Cases on the emerging field of arts-in-business in Denmark....

  13. Art Therapy Verses Psychotherapy

    Science.gov (United States)

    Del Giacco, Maureen

    2009-01-01

    The purpose of my paper is to identify the difference between psychotherapy and art therapy. Then to introduce a technique within the field of art therapy that is relevant to neuro-plasticity Del Giacco Neuro Art Therapy. The paper identifies the importance of the amygdala and the hippocampus within the role of art therapy. Supporting…

  14. Children as Art Teachers

    Science.gov (United States)

    Szekely, George

    2011-01-01

    A goal of art learning is always independence, for everyone to become their own art teacher. Teaching for artistic independence can never start too early. As art teachers, children acquire confidence in their art, and in coming to school as artists. Children should be considered artists in residence and visiting artists in schools. It makes sense…

  15. Art and Religion

    Science.gov (United States)

    Shusterman, Richard

    2008-01-01

    Since the nineteenth century's interest in "art for art's sake," many thinkers have argued that art would supplant traditional religion as the spiritual locus of the increasingly secular society of Western modernity. If art can capture the sort of spirituality, idealism, and expressive community of traditional religions but without being ensnared…

  16. When Art & Finance Collide

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Fine art and big finance are proving a profitable combination in China but questions of authenticity need to be addressed CHINA’S art market is on fire.As sales and prices break records,a new force has appeared in the market - organized art finance in the form of art trust funds and artwork exchanges.

  17. La "Historia del Arte" de Ernst Gombrich

    Directory of Open Access Journals (Sweden)

    Antón Capitel

    2012-12-01

    Full Text Available

    Resumen

    El texto es una crítica del libro de Ernst Gombrich “Historia del  Arte”, obra antigua y traducida a muchos idiomas, pero que en 2011 ha publicado la edición de bolsillo en castellano. La crítica no entra mucho en el contenido, sólo en algunos aspectos, y se centra en los comentarios acerca de la antología de la historia del arte universal que el autor hace. Así se critica el hecho de la poca presencia del arte español, en general, y sobre todo de la poca presencia de la colección española de pintura en el Museo del Prado, la mejor pinacoteca del mundo. También, de la poco acertada elección de algunos ejemplos y de la sobreabundancia de referencias al arte de carácter menor del Reino Unido o de Holanda. El autor deplora igualmente la falta de sentido de las referencias a la arquitectura a partir del barroco, y, en cuanto al contenido, al mantenimiento de la vieja y ofensiva tesis de la  supremacía del arte de los países protestantes sobre el de los católicos.

    Palabras clave

    historia del arte, arte, arquitectura, crítica, referencias

    Abstract

    The text is a critique of Ernst Gombrich´s book “History of Art”, old work translated into many languages, which in 2011 was published as a pocket edition in Spanish. Rather than providing  a criticism of the content, only certain aspects are mentioned, the critique is centered around comments on the author´s choice of anthology taken from the universal history of art. In this way not only does the lack of presence of Spanish art in general come under particular criticism, but most of all the feeble  representation of the Spanish collection of the Prado museum, the finest gallery in the world. Under scrutiny also come the  unwise choice of several examples and the overabundance of British and Dutch art of a minor character. Similarly, the author deplores

  18. Invisible waves and hidden realms: augmented reality and experimental art

    Science.gov (United States)

    Ruzanka, Silvia

    2012-03-01

    Augmented reality is way of both altering the visible and revealing the invisible. It offers new opportunities for artistic exploration through virtual interventions in real space. In this paper, the author describes the implementation of two art installations using different AR technologies, one using optical marker tracking on mobile devices and one integrating stereoscopic projections into the physical environment. The first artwork, De Ondas y Abejas (The Waves and the Bees), is based on the widely publicized (but unproven) hypothesis of a link between cellphone radiation and the phenomenon of bee colony collapse disorder. Using an Android tablet, viewers search out small fiducial markers in the shape of electromagnetic waves hidden throughout the gallery, which reveal swarms of bees scattered on the floor. The piece also creates a generative soundscape based on electromagnetic fields. The second artwork, Urban Fauna, is a series of animations in which features of the urban landscape become plants and animals. Surveillance cameras become flocks of birds while miniature cellphone towers, lampposts, and telephone poles grow like small seedlings in time-lapse animation. The animations are presented as small stereoscopic projections, integrated into the physical space of the gallery. These two pieces explore the relationship between nature and technology through the visualization of invisible forces and hidden alternate realities.

  19. ARTS BETA testing report

    Science.gov (United States)

    Mccune, M. C.

    1981-01-01

    The advanced real time system (ARTS) was tested utilizing existing commercial system hardware and software which has been operating under advanced operating system (AOS) for several years in a multitasking, multiprocessing, and multiple computer environment. Experiences with ARTS in terms of compatibility with AOS, ease of transmission between AOS and ARTS, and functional areas of ARTS which were tested are discussed. Relative and absolute performance of ARTS versus AOS as measured in the system environment are also presented.

  20. High diversity and low specificity of chaetothyrialean fungi in carton galleries in a neotropical ant-plant association.

    Directory of Open Access Journals (Sweden)

    Maximilian Nepel

    Full Text Available New associations have recently been discovered between arboreal ants that live on myrmecophytic plants, and different groups of fungi. Most of the - usually undescribed - fungi cultured by the ants belong to the order Chaetothyriales (Ascomycetes. Chaetothyriales occur in the nesting spaces provided by the host plant, and form a major part of the cardboard-like material produced by the ants for constructing nests and runway galleries. Until now, the fungi have been considered specific to each ant species. We focus on the three-way association between the plant Tetrathylacium macrophyllum (Salicaceae, the ant Azteca brevis (Formicidae: Dolichoderinae and various chaetothyrialean fungi. Azteca brevis builds extensive runway galleries along branches of T. macrophyllum. The carton of the gallery walls consists of masticated plant material densely pervaded by chaetothyrialean hyphae. In order to characterise the specificity of the ant-fungus association, fungi from the runway galleries of 19 ant colonies were grown as pure cultures and analyzed using partial SSU, complete ITS, 5.8S and partial LSU rDNA sequences. This gave 128 different fungal genotypes, 78% of which were clustered into three monophyletic groups. The most common fungus (either genotype or approximate species-level OTU was found in the runway galleries of 63% of the investigated ant colonies. This indicates that there can be a dominant fungus but, in general, a wider guild of chaetothyrialean fungi share the same ant mutualist in Azteca brevis.

  1. Electrical resistivity tomography survey for delineating uncharted mine galleries in West Bengal, India

    International Nuclear Information System (INIS)

    The history of subsidence, fires, flooding and other kinds of environmental hazards related to shallow coal workings in India goes back to colonial times some 300 years ago. As coal production accelerated in modern times, so did the environmental and socio-economic drawbacks related to exploitation. In the mid-1980s, a hydropneumatic sand-stowing method was developed to fill in abandoned galleries but their exact location had to be known. Unfortunately, most of these old workings are uncharted and consequently large tracts of land cannot be stabilized. A research program making use of integrated surface, borehole and cross-hole geophysical methods was undertaken over a five-year span to try to solve this problem. Surface geophysical methods, being cheaper and faster than their cross- and downhole counterparts, were used to cover larger areas on an exploratory basis, while cross-hole methods were employed to locate more accurately one or a network of galleries to be perforated by drillhole(s) and used as a conduit for sand stowing. The authors report the results of one of the cross-hole geophysical methods: electrical resistivity tomography (ERT). A pole-dipole configuration is used and both cross-hole and surface-borehole methodologies are tested. Forward modelling and inversion of synthetic data making use of downhole and surface physical and geometrical parameters are presented first. This phase is followed by the inversion of real data. It is concluded that ERT is not applicable for the detection of dry voids, but is effective in a waterlogged environment which is estimated to represent 85--90% of the cases. In waterlogged galleries, ERT is applicable in both cross-hole and surface-downhole modes, the latter allowing a larger surface coverage at low cost. ERT is thus a reliable geophysical tool to image water-filled voids and an adequate technique to address environmental and geotechnical problems

  2. Strong coupling between whispering gallery modes and chromium ions in ruby

    Science.gov (United States)

    Farr, Warrick G.; Goryachev, Maxim; Creedon, Daniel L.; Tobar, Michael E.

    2014-08-01

    We report the study of interactions between cavity photons and paramagnetic Cr3+ spins in a ruby (Cr3+:Al2O3) whispering gallery mode (WGM) resonator. Examining the system at microwave frequencies and millikelvin temperatures, spin-photon couplings up to 610 MHz or about 5% of photon energy are observed between the impurity spins and high quality factor (Q >105) WGM. Large tunability and spin-spin interaction allows operation in the strong coupling regime. The system exhibits behavior not predicted by the usual Tavis-Cummings model because of interactions within the two-level spin bath, and the existence of numerous photonic modes.

  3. Calculation of the spectrum of whispering gallery modes in cylindrical resonators with perturbed boundary conditions

    International Nuclear Information System (INIS)

    The spectrum of whispering gallery modes for resonators with a small deformation of the boundary is calculated analytically. Cylindrical resonators with two different cross sections (segment close to a circle and segment close to a semicircle) are considered. The calculation is performed for resonators with metal boundaries, but the obtained result is a good approximation for dielectric resonators as well. The applicability limits of the found expressions for the spectra are analysed. It is shown that the spectra calculated using the obtained expressions coincide well with computer-calculated spectra. The perturbation-induces changes in the field distribution are qualitatively studied using numerical simulation. (semiconductor lasers. physics and technology)

  4. Auto-oscillatory system based on dielectric resonator with whispering-gallery modes

    Science.gov (United States)

    Dormidontov, A. V.; Kirichenko, A. Ya.; Lonin, Yu. F.; Ponomarev, A. G.; Prokopenko, Yu. V.; Sotnikov, G. V.; Uvarov, V. T.; Filippov, Yu. F.

    2012-01-01

    A new method of microwave generation in a system with high- Q quasi-optical cylindrical dielectric resonator (CDR) excited by an azimuthal-periodic electron beam current is proposed. Characteristic parameters of a cylindrical fluoroplastic CDR have been determined. Data on microwave generation in a system based on a CDR with whispering-gallery eigenmodes excited by a relativistic azimuthal-periodic electron beam current are presented. Electromagnetic radiation of this system was measured using a detector for the 8-mm wavelength range.

  5. Calculation of the spectrum of whispering gallery modes in cylindrical resonators with perturbed boundary conditions

    Science.gov (United States)

    Dontsov, A. A.; Monakhov, A. M.; Averkiev, Nikita S.

    2013-05-01

    The spectrum of whispering gallery modes for resonators with a small deformation of the boundary is calculated analytically. Cylindrical resonators with two different cross sections (segment close to a circle and segment close to a semicircle) are considered. The calculation is performed for resonators with metal boundaries, but the obtained result is a good approximation for dielectric resonators as well. The applicability limits of the found expressions for the spectra are analysed. It is shown that the spectra calculated using the obtained expressions coincide well with computer-calculated spectra. The perturbation-induces changes in the field distribution are qualitatively studied using numerical simulation.

  6. Highly tunable low-threshold optical parametric oscillation in radially poled whispering gallery resonators

    CERN Document Server

    Beckmann, T; Steigerwald, H; Sturman, B; Haertle, D; Buse, K; Breunig, I

    2010-01-01

    Tunability of optical parametric oscillation in a radially structured whispering gallery resonator made of lithium niobate is investigated experimentally and theoretically. With a 1.04-\\mu m pump wave, the signal and idler waves are tuned from 1.78 to 2.5 \\mu m -- including the point of degeneracy -- by varying the temperature between 20 and 62{\\deg}C. A weak off-centering of the radial domain structure extends considerably the tuning capabilities. The oscillation threshold lies in the mW-power range.

  7. Cascaded Brillouin lasing in monolithic barium fluoride whispering gallery mode resonators

    International Nuclear Information System (INIS)

    We report the observation of stimulated Brillouin scattering and lasing at 1550 nm in barium fluoride (BaF2) crystal. Brillouin lasing was achieved with ultra-high quality (Q) factor monolithic whispering gallery mode mm-size disk resonators. Overmoded resonators were specifically used to provide cavity resonances for both the pump and all Brillouin Stokes waves. Single and multiple Brillouin Stokes radiations with frequency shift ranging from 8.2 GHz up to 49 GHz have been generated through cascaded Brillouin lasing. BaF2 resonator-based Brillouin lasing can find potential applications for high-coherence lasers and microwave photonics

  8. Domain patterns for quasi-phase matching in whispering-gallery modes

    International Nuclear Information System (INIS)

    Quasi-phase matching conditions for second-harmonic generation are analyzed for whispering-gallery modes. Several domain patterns, particularly those useful for resonators made of lithium niobate, are compared in terms of their effective nonlinear optical coefficients and spectral bandwidths. Only if the grating period at the circular surface of the resonator is monotonically increasing will the effective nonlinearity be independent of small variations of the properties of the resonator, such as the radius, and the offset between the domain pattern and the center of the resonator

  9. Exploring the Frequency Stability Limits of Whispering Gallery Mode Resonators for Metrological Applications

    Science.gov (United States)

    Chembo, Yanne K.; Baumgartel, Lukas; Grudinin, Ivan; Strekalov, Dmitry; Thompson, Robert; Yu, Nan

    2012-01-01

    Whispering gallery mode resonators are attracting increasing interest as promising frequency reference cavities. Unlike commonly used Fabry-Perot cavities, however, they are filled with a bulk medium whose properties have a significant impact on the stability of its resonance frequencies. In this context that has to be reduced to a minimum. On the other hand, a small monolithic resonator provides opportunity for better stability against vibration and acceleration. this feature is essential when the cavity operates in a non-laboratory environment. In this paper, we report a case study for a crystalline resonator, and discuss the a pathway towards the inhibition of vibration-and acceleration-induced frequency fluctuations.

  10. Generalized Full-Vector Multi-Mode Matching Analysis of Whispering-Gallery Microcavities

    CERN Document Server

    Du, Xuan; Faucher, Mathieu; Picard, Marie-Josee; Lu, Tao

    2014-01-01

    We outline a full-vectorial three-dimensional multi-mode matching technique in a cylindrical coordinate system that addresses the mutual coupling among multiple modes copropagating in a perturbed whispering-gallery-mode microcavity. In addition to its superior accuracy in respect to our previously implemented single-mode matching technique, this current technique is suitable for modelling waveguide-to-cavity coupling where the influence of multi-mode coupling is non-negligible. Using this methodology, a robust scheme for hybrid integration of a microcavity onto a silicon-on-insulator platform is proposed.

  11. High-Q silk fibroin whispering gallery microresonator on a flexible chip

    CERN Document Server

    Xu, Linhua; Zhao, Guangming; Liu, Zhiwen; Yang, Lan

    2016-01-01

    We have experimentally demonstrated on-chip all silk fibroin whispering gallery mode microresonator by using the molding and solution casting technique. The quality factors of the fabricated silk protein microresonators are up to 0.9*10^5. A high-sensitivity thermal sensor was realized in this silk fibroin microtoroid with the sensitivity of 1.17 nm/K, 8 times higher than previous WGM resonantor based thermal sensors. This opens the way to fabricate the biodegradable and biocompatible protein based microresonators on a flexible chip for biophotonics applications in vivo.

  12. Whispering gallery mode photoemission from self-assembled poly-para-phenylenevinylene microspheres

    Energy Technology Data Exchange (ETDEWEB)

    Kushida, Soh; Yamamoto, Yohei [Division of Materials Science and Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573 (Japan); Braam, Daniel; Lorke, Axel [Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Lotharstraße 1, Duisburg, D-47048 (Germany)

    2015-12-31

    Poly[2-methoxy-5-(3,7-dimethyloctyloxy)-1,4-phenylenevinylene] (MDMOPPV) self-assembles to form well-defined spheres with several micrometers in diameter upon addition of a methanol vapor into a chloroform solution of MDMOPPV. The single sphere of MDMOPPV with 5.7 µm diameter exhibits whispering gallery mode (WGM) photoemission upon excitation with focused laser beam. The periodic emission lines are characterized by transverse electric and magnetic WGMs, and Q-factor reaches ∼345 at the highest.

  13. Entanglement of separate nitrogen-vacancy centers coupled to a whispering-gallery mode cavity

    CERN Document Server

    Yang, W L; Feng, M; Du, J F

    2010-01-01

    We present a quantum electrodynamical model involving nitrogen-vacancy centers coupled to a whispering-gallery mode cavity. Two schemes are considered to create W state and Bell state, respectively. One of the schemes makes use of the Raman transition with the cavity field virtually excited; The other enables the Bell state preparation and quantum information transfer by virtue of dark state evolution and adiabatic passage, which is tolerant to ambient noise and experimental parameter fluctuations. We justify our schemes by considering the experimental feasibility and challenge using currently available technology.

  14. Cascaded Brillouin lasing in monolithic barium fluoride whispering gallery mode resonators

    CERN Document Server

    Lin, Guoping; Saleh, Khaldoun; Martinenghi, Romain; Beugnot, Jean-Charles; Sylvestre, Thibaut; Chembo, Yanne K

    2015-01-01

    We report the observation of stimulated Brillouin scattering and lasing at 1550~nm in barium fluoride (BaF$_2$) crystal. Brillouin lasing was achieved with ultra-high quality ($Q$) factor monolithic whispering gallery mode (WGM) mm-size disk resonators. Overmoded resonators were specifically used to provide cavity resonances for both the pump and all Brillouin Stokes waves. Single and multiple Brillouin Stokes radiations with frequency shift ranging from $8.2$ GHz up to $49$ GHz have been generated through cascaded Brillouin lasing. BaF$_2$ resonator-based Brillouin lasing can find potential applications for high-coherence lasers and microwave photonics.

  15. CaF2 Whispering-Gallery-Mode Resonator Stabilized Narrow Linewidth Laser

    CERN Document Server

    Sprenger, B; Lu, Z H; Svitlov, S; Wang, L J; 10.1364/OL.35.002870

    2012-01-01

    A fiber laser is stabilized using a Calcium Fluoride (CaF2) whispering-gallery-mode resonator. It is set up using a semiconductor optical amplifier as a gain medium. The resonator is critically coupled through prisms, and used as a filtering element to suppress the laser linewidth. Using the self-heterodyne beat technique the linewidth is determined to be 13 kHz. This implies an enhancement factor of 10^3 with respect to the passive cavity linewidth. The three-cornered hat method shows a stability of 10^(-11) after 10 \\mu s.

  16. Quantum information transfer with nitrogen-vacancy centers coupled to a whispering-gallery microresonator

    CERN Document Server

    Li, Pengbo

    2010-01-01

    We propose an efficient scheme for the realization of quantum information transfer and entanglement with nitrogen-vacancy (NV) centers coupled to a high-Q microspherical resonator. We show that, based on the effective dipole-dipole interaction between the NV centers mediated by the whispering-gallery mode (WGM), quantum information can be transferred between the NV centers through Raman transitions combined with laser fields. This protocol may open up promising possibilities for quantum communications with the solid state cavity QED system.

  17. Tunable add-drop filter using an active whispering gallery mode microcavity

    CERN Document Server

    Monifi, Faraz; Yang, Lan

    2013-01-01

    An add-drop filter (ADF) fabricated using a whispering gallery mode resonator has different crosstalks for add and drop functions due to non-zero intrinsic losses of the resonator. Here, we show that introducing gain medium in the resonator and optically pumping it below the lasing threshold not only allows loss compensation to achieve similar and lower crosstalks but also tunability in bandwidth and add-drop efficiency. For an active ADF fabricated using an erbium-ytterbium co-doped microsphere, we achieved 24-fold enhancement in the intrinsic quality factor, 3.5-fold increase in drop efficiency, bandwidth tunability of 35 MHz and a crosstalk of only 2%.

  18. Barium fluoride whispering-gallery-mode disk-resonator with one billion quality-factor

    OpenAIRE

    Lin, Guoping; Diallo, Souleymane; Henriet, Rémi; Jacquot, Maxime; Chembo, Yanne K.

    2015-01-01

    We demonstrate a monolithic optical whispering gallery mode resonator fabricated with barium fluoride (BaF$_2$) with an ultra-high quality ($Q$) factor above $10^9$ at $1550$ nm, and measured with both the linewidth and cavity-ring-down methods. Vertical scanning optical profilometry shows that the root mean square surface roughness of $2$ nm is achieved for our mm-size disk. To the best of our knowledge, we show for the first time that one billion $Q$-factor is achievable by precision polish...

  19. ART 125 Courses/snaptutorial

    OpenAIRE

    charles

    2015-01-01

    ­For more classes visits www.snaptutorial.com           ART 125 Week 1 Individual Assignment Pop Culture and the Arts Paper ART 125 Week 2 Individual Assignment Trends Paper ART 125 Week 3 Individual Assignment Globalization of Art and Pop Culture ART 125 Week 3 Learning Team Assignment Ethical Issues in Art and Popular Culture Outline ART 125 Week 4 Individual Assignment Print Art and Advertising Paper ART 125 Week ...

  20. Incorporation And Exploration Of Local Imageries And Identities In Malaysia's Graffiti Art

    Directory of Open Access Journals (Sweden)

    Sarena Abdullah

    2015-09-01

    Full Text Available The production of graffiti art in Malaysia can be traced back to the late 1990’s. Since then, graffiti art has beenembraced by local municipalities as well as the National Visual Art Gallery (NVAG in their public programming and activities. Despite these positive developments, how the local graffiti artists infused local imageries and indentities in their work had not been examined. The parallels between graffiti art practices and the development of modern art in Malaysia, made the emergence of forms  and themes that reflect local identity in graffiti art  not a surprise, as these were also the inherent issues explored by local artists in the domain of fine arts. This paper hence, discusses the different approaches taken by Malaysia’s graffiti artists, how they incorporate and explored their visual ideas rooted in hip hop culture and the New York City Subway graffiti, with local imageries and identities. This paper will also discuss the history and background of Malaysia’s graffiti art as well as how Malaysian graffiti artists employedvarious local imageries and identity.

  1. The Origins of Art

    OpenAIRE

    Aleksandre P. Lobodanov

    2015-01-01

    The origins of artistic activities or rather art, and in recent decades the processing and consolidation of a new field in art history, art semiotics, are grouped together in the semiotic systems of applied and non-applied arts.In this paper, in particular, an analysis is made of the non-applied arts, in which non-verbal signs are used to express the form of human thought.The discussion focuses on the origins of non-applied arts, the image-forming process, the psychology of perception, the pe...

  2. PHYTOSSOCIOLOGY AND DIAMETRIC ESTRUCTURE IN THE GALLERY FOREST OF PITOCO, IN THE ECOLOGICAL RESERVE OF IBGE, DF

    Directory of Open Access Journals (Sweden)

    Manoel Cláudio da Silva Júnior

    2005-06-01

    Full Text Available The gallery forest, in the cerrado region, has a very important function on the environmental and social equilibrium.Despite been protected by law, gallery forests have been systematically replaced by agriculture and other regional uses. One thousandtrees (DAP 5cm were sampled using point centered-quarter (PCQ method. Sampling lines were established, from the head to themouth of the stream and from the stream margins to the forest-cerrado border, of the Pitoco gallery forest, in the IBGE EcologicalReserve, in Federal District, Brazil. Results showed 99 species of 46 families in the area. The most important families were:Leguminosae, Vochysiaceae, Rubiaceae, Anacardiaceae, Euphorbiaceae, Lauraceae, Burseraceae, Moraceae, Annonaceae eSymplocaceae, while the most important species were: Callisthene major, Tapirira guianensis, Protium almecega, Copaifera langsdorffii,Sclerolobium paniculatum var. rubiginosum, Pseudolmedia guaranítica, Faramea cyanea, Emmotum nitens, Lamanonia ternata,Maprounea guianensis, excluding the group of dead trees which was ranked in the 5th position. Density and basal area were estimatedas 1971 trees.ha-1 and 38,8 m².ha-1 ,respectively. Diameter distribution showed a tendency to an inverted J curve revealing low levelsof disturbance in this gallery forest. A floristic comparison carried out with 21 gallery forests in the Federal District indicated Pitocogallery forest as a rich site including 99 (26,2% of the total of 378 species recorded, a Shannon & Weaver diversity index estimatedas 3,86 nats.ind-1 and Sørensen similarities ranging from 0,29 to 0,80 with DF gallery forests.

  3. Spirituality as a universal concept: student experience of learning about spirituality through the medium of art.

    Science.gov (United States)

    Mooney, Bróna; Timmins, Fiona

    2007-09-01

    Precise definitions of spirituality can be elusive (McSherry, 2000). This factor together with the increasing class sizes for undergraduate nursing students render the teaching and learning of spirituality in nursing a challenge for both lecturers and students alike (McSherry, 2000). This paper reports on the design, delivery and evaluation of an innovative spirituality program for second year nursing students attending a Bachelor of Science degree at a university in the Republic of Ireland. This teaching program was introduced in 2005 to enhance nursing students' engagement with the concept of spirituality. The program consisted of a series of lectures on the topic, followed by a visit to the National Gallery of Ireland. The latter involved a structured visit, whereby the students (n=100) were divided into ten small groups and asked to wander through a section of the gallery and choose a piece of art work that they perceived to be spiritual in nature. Students were then asked to write their subjective impressions and reasons for their choice of painting. A list of themes related to spirituality was provided to the students as a prompt. Students later visited the paintings with both a lecturer and an art gallery guide and their chosen paintings were discussed within the group. Later that day, purposive sampling was used, whereby a selection of nursing students participating in the Gallery visit (n=21) partook in four recorded focus group interviews following the Gallery visit. Themes emerging from the interviews pertained to the universal and individual nature of spirituality. In keeping with Mc Sherry's (2000:27) definition of spirituality as a "universal concept relevant to all individuals", students in the study revealed their surprise at the uniqueness of their colleague's interpretations. The teaching methodology offered them an opportunity to reflect upon their own understandings and develop a deeper awareness of the meaning of spirituality. It also allowed

  4. New rock and portable art finds in La Cullalvera cave (Ramales de la Victoria, Cantabria

    Directory of Open Access Journals (Sweden)

    Yolanda DÍAZ

    2012-07-01

    Full Text Available Archaeological activities carried out in the vestibule of La Cullalvera cave during the conditioning of the site for touristic use have lead to the discovery of a new cave painting, a figure of a horse in red traits. Some pieces of portable art have been also found, including a fragment of a small bone plaquette with a series of engraved “claviform” signs that show a clear parallel with the signs of the same type painted in red in the inner gallery of the cave. The formal and stylistic characteristics of the findings point to a Magdalenian chronology.

  5. Transmission and radiation in a slab waveguide coupled to a whispering-gallery resonator: volume-integral-equation analysis.

    Science.gov (United States)

    Chremmos, Ioannis D; Uzunoglu, Nikolaos K

    2004-05-01

    The excitation of a whispering gallery resonator by a surface wave guided in a dielectric slab is analyzed with a rigorous volume-integral-equation approach. The analysis is based on the Green's function concept and the application of the entire-domain Galerkin technique through expansion of the electric field in the resonator in terms of cylindrical wave functions. The algorithm developed yields highly accurate results for the transmission and reflection coefficients in the waveguide. The radiated far field is computed, and the effect of the excitation of a whispering gallery mode on the radiation pattern is studied. PMID:15139438

  6. Structural and environmental variations in a continuum of gallery forest/savana stricto sensu in Itumirim, MG

    OpenAIRE

    Danilo José Santos Gomes; Isaias Paulino Carmo; Anne Priscila Dias Gonzaga; Leandro Carlos; Ricardo Ayres Loschi; José Aldo Alves Pereira; Evandro Luiz Mendonça Machado

    2013-01-01

    This work verified the possible correlations among the variations of the strucuture, species diversity and variations of the substrate in a tree compartment in a continuum of Gallery Forest/Savana stricto sensu in Itumirim, southern of Minas Gerais. The soils of the areas of Gallery Forest, Transition Forest and Savana stricto sensu presented medium structure, high acidity with pH between 4.5 and 5.0 and high aluminum contents. The structural survey all over the patch presented 1,347 individu...

  7. Reporting on What Jane Saw 2.0: Female Celebrity and Sensationalism in Boydell’s Shakespeare Gallery

    OpenAIRE

    Janine Barchas

    2015-01-01

    This essay reports on ongoing efforts to build an accurate digital model of John Boydell’s popular Shakespeare Gallery precisely as it looked in August 1796—when a 20-year-old Jane Austen visited London’s sites, staying within a ten-minute walk from the gallery. The essay argues for the substantial difference between studying Boydell’s pictures in a paper volume (whether as lists, illustrations in books, or engraved folio plates) and viewing them as an exhibition of paintings on walls, albeit...

  8. Room Temperature Lasing of InAs/GaAs Quantum Dots in the Whispering Gallery Modes of a Silica Microsphere

    OpenAIRE

    Steiner, Sébastien; Hare, Jean; Lefèvre-Seguin, Valérie

    2007-01-01

    We have achieved low threshold lasing of self-assembled InAs/GaAs quantum dots coupled to the evanescent wave of the high-$Q$ whispering gallery modes of a silica microsphere. In spite of high temperature and $Q$-spoiling of whispering gallery modes due to diffusion and refraction on the high index semiconductor sample, room temperature lasing is obtained with less than 100 quantum dots. This result highlights the feasibility and interest of combining self-assembled quantum dots and microsphe...

  9. CERN Inspires Art in Major New Exhibition

    CERN Multimedia

    2001-01-01

    Signatures of the Invisible, an exhibition inspired by CERN, opened at the Atlantis Gallery in London on Thursday, 1 March before going on a world tour. The fruit of a close collaboration between CERN and the London Institute, the exhibition brings together works from many leading European contemporary artists. White wooden boxes on a grey floor... the lids opened, unveiling brilliant white light from a bunch of optical fibres carefully stuck together in the shape of a square. Another holds a treasure of lead glass surrounded by enigmatic black mirrors. What's it all about? Signatures of the Invisible, that's what, a joint project organised by the London Institute, one of the world's largest college of art, and our Laboratory. Damien Foresy from the EST workshop putting finishing touches to the spinning tops of French artist Jérôme Basserode. Monica Sand's boxes are just one of the many works based around materials used in particle detection at CERN that was admired at the opening o...

  10. Pseudo-type-II tuning behavior and mode identification in whispering gallery optical parametric oscillators.

    Science.gov (United States)

    Meisenheimer, Sarah-Katharina; Fürst, Josef Urban; Schiller, Annelie; Holderied, Florian; Buse, Karsten; Breunig, Ingo

    2016-06-27

    Wavelength tuning of conventional mirror-based optical parametric oscillators (OPOs) exhibits parabolically-shaped tuning curves (type-0 and type-I phase matching) or tuning branches that cross each other with a finite slope (type-II phase matching). We predict and experimentally prove that whispering gallery OPOs based on type-0 phase matching show both tuning behaviors, depending on whether the mode numbers of the generated waves coincide or differ. We investigate the wavelength tuning of optical parametric oscillation in a millimeter-sized radially-poled lithium niobate disk pumped at 1 μm wavelength generating signal and idler waves between 1.7 and 2.6 μm wavelength. Our experimental findings excellently coincide with the theoretical predictions. The investigated whispering gallery optical parametric oscillator combines the employment of the highest nonlinear-optical coefficient of the material with a controlled type-II-like wavelength tuning and with the possibility of self-phase locking. PMID:27410665

  11. Long term loading of the gallery lining in a clay host rock

    International Nuclear Information System (INIS)

    Document available in extended abstract form only. Repository construction and operation in a clay host rock - in particular in poorly indurated clays like the Boom Clay - require a structural support of the host rock excavations for several reasons. Apart from the operational safety, a well-designed structural support also minimizes the perturbation (or excavation damaged/disturbed zone) of the host formation. Furthermore, it is essential if reversibility would be a requirement in the phased development of a repository. The design of such a support depends, amongst others, on the stress state around the lining. In this paper we present the results that have been obtained through monitoring since the extension of the HADES underground research facility in 2002. The design of this extension has been based on a wedge-block lining with pre-cast concrete segments. To assess the stresses inside the lining segments, several segments were instrumented with embedded vibrating wire strain gauges during casting. The first phase of the extension was the construction of the Connecting Gallery in 2002. Strains have been monitored since then and allow assessing the stresses inside the lining, as well as deriving the stress state of the host formation around it. Based on this monitoring set-up, a similar approach was performed for the construction of the PRACLAY Gallery in 2007 where in addition to the strains, the contact pressure between the lining and host formation and the load between the segments are being monitored directly. The measurement set-ups of both the Connecting Gallery and the PRACLAY Gallery show a similar stress state, thereby increasing our confidence in the interpretation of the measurements. The strains measured in the Connecting Gallery show that the wedge-block lining presents an almost instantaneous strain increase followed by a gradual increase with time as shown in Figure 1, which represents the evolution of the measured strains with time at the

  12. The BOSS Emission-Line Lens Survey. IV. : Smooth Lens Models for the BELLS GALLERY Sample

    CERN Document Server

    Shu, Yiping; Mao, Shude; Kochanek, Christopher S; Pérez-Fournon, Ismael; Oguri, Masamune; Montero-Dorta, Antonio D; Cornachione, Matthew A; Marques-Chaves, Rui; Zheng, Zheng; Brownstein, Joel R; Ménard, Brice

    2016-01-01

    We present \\textsl{Hubble Space Telescope} (\\textsl{HST}) F606W-band imaging observations of 21 galaxy-Ly$\\alpha$ emitter lens candidates in the Baryon Oscillation Spectroscopic Survey (BOSS) Emission-Line Lens Survey (BELLS) for GALaxy-Ly$\\alpha$ EmitteR sYstems (BELLS GALLERY) survey. 17 systems are confirmed to be definite lenses with unambiguous evidence of multiple imaging. The lenses are primarily massive early-type galaxies (ETGs) at redshifts of approximately $0.55$, while the lensed sources are Ly$\\alpha$ emitters (LAEs) at redshifts from 2 to 3. Although the \\textsl{HST} imaging data are well fit by smooth lens models consisting of singular isothermal ellipsoids in an external shear field, a thorough exploration of dark substructures in the lens galaxies is required. The Einstein radii of the BELLS GALLERY lenses are on average $60\\%$ larger than those of the BELLS lenses because of the much higher source redshifts which will allow a detailed investigation of the radius evolution of the mass profile...

  13. Interfacing whispering-gallery microresonators and free space light with cavity enhanced Rayleigh scattering

    Science.gov (United States)

    Zhu, Jiangang; Özdemir, Şahin K.; Yilmaz, Huzeyfe; Peng, Bo; Dong, Mark; Tomes, Matthew; Carmon, Tal; Yang, Lan

    2014-09-01

    Whispering gallery mode resonators (WGMRs) take advantage of strong light confinement and long photon lifetime for applications in sensing, optomechanics, microlasers and quantum optics. However, their rotational symmetry and low radiation loss impede energy exchange between WGMs and the surrounding. As a result, free-space coupling of light into and from WGMRs is very challenging. In previous schemes, resonators are intentionally deformed to break circular symmetry to enable free-space coupling of carefully aligned focused light, which comes with bulky size and alignment issues that hinder the realization of compact WGMR applications. Here, we report a new class of nanocouplers based on cavity enhanced Rayleigh scattering from nano-scatterer(s) on resonator surface, and demonstrate whispering gallery microlaser by free-space optical pumping of an Ytterbium doped silica microtoroid via the scatterers. This new scheme will not only expand the range of applications enabled by WGMRs, but also provide a possible route to integrate them into solar powered green photonics.

  14. MUF architecture /art London

    DEFF Research Database (Denmark)

    Svenningsen Kajita, Heidi

    2009-01-01

    Om MUF architecture samt interview med Liza Fior og Katherine Clarke, partnere i muf architecture/art......Om MUF architecture samt interview med Liza Fior og Katherine Clarke, partnere i muf architecture/art...

  15. Nordic (Art) Photography

    DEFF Research Database (Denmark)

    Sandbye, Mette

    2013-01-01

    A description of the rise of the role of photography on the Scandinavian art scene the last 25 years......A description of the rise of the role of photography on the Scandinavian art scene the last 25 years...

  16. Art Taipei, 2007

    Institute of Scientific and Technical Information of China (English)

    Jade; Franklin

    2007-01-01

    ■The boom of Chinese contemporary art in recent years has been greatly assisted by the purchasing power of Taiwanese collectors. They constitute the largest art buyers in the Asian market and without them the scene would look

  17. Fine Arts Database (FAD)

    Data.gov (United States)

    General Services Administration — The Fine Arts Database records information on federally owned art in the control of the GSA; this includes the location, current condition and information on artists.

  18. Artfulness i Vejle

    DEFF Research Database (Denmark)

    Chemi, Tatiana

    2011-01-01

    this is the closing report, summing up findings from different qualitative case studies on the workings of the arts in learning. The background ethnographic research followed several arts-project in Danish public schools.......this is the closing report, summing up findings from different qualitative case studies on the workings of the arts in learning. The background ethnographic research followed several arts-project in Danish public schools....

  19. Gombrich, Art and Psychoanalysis

    OpenAIRE

    Stefano Ferrari

    2014-01-01

    Ernst H. Gombrich has always shown particular attention to the psychology of art as psychology of representation (and enjoyment) of art. In addition, through his friendship with Ernst Kris, who had been a respected art historian in the staff of the Kunsthisthoriches Museum in Vienna before becoming an important psychoanalyst, Gombrich devoted some fundamental essays on the contribution of psychoanalysis to the study of art.The main novelty and the most original feature of his contribution to ...

  20. Social Action Art Therapy

    Science.gov (United States)

    Golub, Deborah

    2005-01-01

    This paper explores intersections among art, action, and community. It describes sociopolitical aspects of the author's art therapy work with survivors of repressive regimes living in Brazil, China, and Denmark and considers ways that unique historical and social processes influenced her conceptualization and practice of social action art therapy.

  1. Transpersonal Art Therapy Education.

    Science.gov (United States)

    Franklin, Michael; Farrelly-Hansen, Mimi; Marek, Bernie; Swan-Foster, Nora; Wallingford, Sue

    2000-01-01

    Addresses the task of training future art therapists through a unique branch of transpersonal psychology referred to as "contemplative education." Discusses contemplative practices, such as meditation, and their relationship to creating art. Offers a definition of transpersonal art therapy as well as a literature review. (Contains 80 references.)…

  2. Teaching with Public Art

    Science.gov (United States)

    Argiro, Carol

    2004-01-01

    "Public art" is a broad term that refers to art in public spaces and includes architecture, landscape, and urban design. Public art makes public spaces more beautiful, encourages us to pause and interact with our environment, or reminds us of important people and events. Just as often, public sculptures become such a part of our everyday…

  3. Arts Opportunity Gap

    Science.gov (United States)

    Principal, 2012

    2012-01-01

    The increasing focus on arts education during the past few years has brought much-needed attention to the benefits it affords to students of all ages. Past research has proved time and again that the arts support teaching and learning in numerous ways, and recommendations abound that schools should find ways to integrate the arts in classrooms.…

  4. Ancient Art Form Revisited

    Institute of Scientific and Technical Information of China (English)

    Liu Jian

    2011-01-01

    @@ A CHINESE New Year painting exhibition has offered thousands of art lovers a traditional folk art feast in Beijing this past January and February.With the theme of "Door Gods," over 300 works of art were on display, representing various styles in China's different regions.

  5. Arts and Technology

    DEFF Research Database (Denmark)

    This book constitutes the thoroughly refereed post-conference proceedings of the Second International Conference on Arts and Technology, ArtsIT 2011, which was held in December 2011 in Esbjerg, Denmark. The 19 revised full papers and the two poster papers cover various topics such as Interaction...... and Art, Music and Performance, and Digital Technology....

  6. Art Priori = Art Priori / Kristel Jakobson

    Index Scriptorium Estoniae

    Jakobson, Kristel, 1983-

    2015-01-01

    Restoran Art Priori Tallinna vanalinnas Olevimägi 7. Sisekujunduse autor Kristel Jakobson (Haka Disain). Eesti Sisearhitektide Liidu aastapreemia 2014/2015 parima restorani eest. Lühidalt Kristel Jakobsonist

  7. Raman-gain induced loss-compensation in whispering-gallery-microresonators and single-nanoparticle detection with whispering-gallery Raman-microlasers

    CERN Document Server

    Ozdemir, Sahin Kaya; Yang, Xu; Peng, Bo; Yilmaz, Huzeyfe; He, Lina; Monifi, Faraz; Long, Gui Lu; Yang, Lan

    2014-01-01

    Recently optical whispering-gallery-mode resonators (WGMRs) have emerged as promising platforms to achieve label-free detection of nanoscale objects and to reach single molecule sensitivity. The ultimate detection performance of WGMRs are limited by energy dissipation in the material they are fabricated from. Up to date, to improve detection limit, either rare-earth ions are doped into the WGMR to compensate losses or plasmonic resonances are exploited for their superior field confinement. Here, we demonstrate, for the first time, enhanced detection of single-nanoparticle induced mode-splitting in a silica WGMR via Raman-gain assisted loss-compensation and WGM Raman lasing. Notably, we detected and counted individual dielectric nanoparticles down to a record low radius of 10 nm by monitoring a beatnote signal generated when split Raman lasing lines are heterodyne-mixed at a photodetector. This dopant-free scheme retains the inherited biocompatibility of silica, and could find widespread use for sensing in bio...

  8. The Origins of Art

    Directory of Open Access Journals (Sweden)

    Aleksandre P. Lobodanov

    2015-12-01

    Full Text Available The origins of artistic activities or rather art, and in recent decades the processing and consolidation of a new field in art history, art semiotics, are grouped together in the semiotic systems of applied and non-applied arts.In this paper, in particular, an analysis is made of the non-applied arts, in which non-verbal signs are used to express the form of human thought.The discussion focuses on the origins of non-applied arts, the image-forming process, the psychology of perception, the perception of sound and reproduction of sounds, the development of music and the development of dance in their entirety, as an expression of the inner condition that influences the body through movement: it thus provides a valuable contribution to the study of the non-applied arts.

  9. The art of scent

    DEFF Research Database (Denmark)

    Stenslund, Anette

    2016-01-01

    At the Museum of Art and Design in New York the The Art of Scent (1889–2012) exhibition announced its declared aim of bringing to the forefront of the arts what has long been considered the fallen angel of the senses: it would inscribe scent into fine art through a display characterised by its ex...... situ superiority detached from everyday culture in situ. The exhibition would thus give cause to sketch in a phenomenology of the art of scent that opts for greater inclusion of visitors’ experienced noses. Unfolding within the framework of Martin Heidegger’s critique of aesthetics and the advocacy of...... art, this paper argues that scent that is not of high culture may yet, phenomenologically speaking, be considered great art....

  10. Whispering gallery mode selective reflector with a high azimuthal index for the input cavity of a gyroklystron

    Science.gov (United States)

    Danilov, Yu. Yu.

    2014-07-01

    A selective reflector in the form of a resonance extension is suggested for the input cavity of a 8-mm-wave gyroklystron operating at whispering gallery mode H m, 1 with an azimuthal index of several tens. Simulation data for the selective reflector are presented.

  11. Radiometric survey in the sites of Regional office in Fortaleza, research gallery and camp in Itataia, CE (Brazil)

    International Nuclear Information System (INIS)

    The radiometric survey in Regional officer sites in Fortaleza, Brazil, research gallery and camp in Itataia is presented. The measurings to be done, the instrumentation used and results obtained are described as well as the conclusions and recommendations. (C.M.)

  12. Reporting on What Jane Saw 2.0: Female Celebrity and Sensationalism in Boydell’s Shakespeare Gallery

    Directory of Open Access Journals (Sweden)

    Janine Barchas

    2015-03-01

    Full Text Available This essay reports on ongoing efforts to build an accurate digital model of John Boydell’s popular Shakespeare Gallery precisely as it looked in August 1796—when a 20-year-old Jane Austen visited London’s sites, staying within a ten-minute walk from the gallery. The essay argues for the substantial difference between studying Boydell’s pictures in a paper volume (whether as lists, illustrations in books, or engraved folio plates and viewing them as an exhibition of paintings on walls, albeit virtual ones. For example, the digital reconstruction illuminated commissions from several female participants in Boydell’s male-dominated gallery, especially Angelica Kauffman (1741-1807 and Anne Seymour Damer (1749-1828. In addition, the essay also recounts how the celebrity of model Emma Hart/Hamilton (1765-1815 safeguarded one Boydell painting from oblivion while The Shakespeare Gallery proved the site of a strange form of self-promotion practiced by actress Mary Wells (1762-1829. Our digital visualization of an historic exhibition in 1796 brought the controversial celebrity of a few women artists into focus. In sum, this essay shows DH methodology in action while sampling what might be gleaned when digital tools serve historical scholarship in the humanities.

  13. Direct ultimate disposal of spent fuel. Handling test for gallery storage. Control programme for the storage system (TA 3)

    International Nuclear Information System (INIS)

    The reference concept of direct ultimate disposal provides for the emplacement of big POLLUX containers in the galleries of a salt dome as an underground repository. The containers are transported by plateau wagons on rails from the surface to the underground. There a loading device takes the loaded plateau wagon and places it into the main road for further transport. A battery-driven mine locomotive couples the plateau wagon and pulls it up to the storage field. There another locomotive takes over the plateau wagon and pushes it, after recoupling, to the storage gallery up to the emplacement position where the plateau wagon is unloaded by the emplacement device. After emplacement, the emplacement device is removed from the storage gallery. It is put on a plateau wagon and shifted to another storage gallery. Signal processing and control of the emplacement device are carried out by means of a memory programmable control. All safety and operation related important signals and state messages are recorded and shown. The major part of the emplacement device control is installed on the device itself. (orig/HP)

  14. Rael Artel Gallery: Non-Profit Project Space : short tale of an experimental project's space tactics / Kiwa

    Index Scriptorium Estoniae

    Kiwa, pseud., 1975-

    2009-01-01

    Aastatel 2004-2008 Pärnus ja aastatel 2006-2008 Tartus tegutsenud Rael Artel Galeriist, mille looja ja moderaator oli Rael Artel. Galerii tegevus lõppes kunstialbumi "Hotell Pärnu : Rael Arel Gallery : Non Profit Project Space 2004-2008 / kontseptsioon ja toimetamine: Rael Artel" ilmumisega 2009. aastal

  15. Frequency tuning of single photons from a whispering-gallery mode resonator to MHz-wide transitions

    DEFF Research Database (Denmark)

    Schunk, G.; Vogl, U.; Sedlmeir, F.;

    2016-01-01

    photons, which is based on parametric down-conversion in a triply resonant whispering-gallery mode resonator, with alkaline transitions [Schunk et al., Optica 2015, 2, 773]. In this paper, we analyse our source in terms of phase matching, available wavelength-tuning mechanisms and applications to...

  16. Eco-aesthetic dimensions: Herbert Marcuse, ecology and art

    Directory of Open Access Journals (Sweden)

    Malcolm Miles

    2016-12-01

    Full Text Available In his last book, The Aesthetic Dimension (1978, Marcuse argued that a concern for aesthetics is justified when political change is unlikely. But the relation between aesthetics and politics is oblique: “Art cannot change the world, but it can contribute to changing the consciousness … of the men and women who could change the world.” (p. 33. Marcuse also linked his critique of capitalism to environmentalism in the early 1970s: “the violation of the Earth is a vital aspect of the counterrevolution.” (Ecology and Revolution, in The New Left and the 1960s, Collected Papers 3, 2005, p. 173. This article revisits Marcuse’s ideas on aesthetics and ecology, and reviews two recent art projects which engage their audiences in ecological issues: The Jetty Project (2014 by Wolfgang Weileder—which used recycled material and community participation to construct a temporary monument within a wider conservation project on the Tyne, N-E England—and Fracking Futures by HeHe (Helen Evans and Heiko Hansen—which turned the interior of the gallery at FACT, Liverpool, into what appeared to be a fracking site. The aim is not to evaluate the projects, nor to test the efficacy of Marcuse’s ideas, more to ask again whether art has a role in a shift of attitude which might contribute to dealing with the political and economic causes of climate change.

  17. The Return of the Body: Performance Art and Art Education.

    Science.gov (United States)

    Green, Gaye Leigh

    1999-01-01

    Explains that performance art incorporates different artistic forms, emphasizes the process of art over the product, and blurs the line between life and art. Discusses the history of performance art, highlights the Performance Art, Culture, and Pedagogy Symposium, and provides examples of how to use performance art in the classroom. (CMK)

  18. Art-Based Learning Strategies in Art Therapy Graduate Education

    Science.gov (United States)

    Deaver, Sarah P.

    2012-01-01

    This mixed methods research study examined the use of art-based teaching methods in master's level art therapy graduate education in North America. A survey of program directors yielded information regarding in which courses and how frequently art-based methods (individual in-class art making, dyad or group art making, student art projects as…

  19. Art in Story: Teaching Art History to Elementary School Children.

    Science.gov (United States)

    Saccardi, Marianne

    Integrated art history and language arts activities are presented in this curriculum guide. The art history content is chronologically organized by units: (1) "Art of the Ancient World"; (2) "Arts of the East and Africa"; (3) "Art of the Middle Ages and the Renaissance"; (4) "Five European Masters"; (5) "Impressionism and Post-Impressionism"; (6)…

  20. Medical Art Therapy

    Directory of Open Access Journals (Sweden)

    Birgul Aydin

    2012-03-01

    Full Text Available Art therapy is a form of expressive therapy that uses art materials. Art therapy combines traditional psychotherapeutic theories and techniques with an understanding of the psychological aspects of the creative process, especially the affective properties of the different art materials. Medical art therapy has been defined as the clinical application of art expression and imagery with individuals who are physically ill, experiencing physical trauma or undergoing invasive or aggressive medical procedures such as surgery or chemotherapy and is considered as a form of complementary or integrative medicine. Several studies have shown that patients with physical illness benefit from medical art therapy in different aspects. Unlike other therapies, art therapy can take the patients away from their illness for a while by means of creative activities during sessions, can make them forget the illness or lost abilities. Art therapy leads to re-experiencing normality and personal power even with short creative activity sessions. In this article definition, influence and necessity of medical art therapy are briefly reviewed.

  1. Nonlinear Surface-Plasmon Whispering-Gallery Modes in Metallic Nanowire Cavities

    CERN Document Server

    Biris, Claudiu G

    2013-01-01

    We demonstrate that the surface second-harmonic generation can lead to the formation of nonlinear plasmonic whispering-gallery modes (WGMs) in microcavities made of metallic nanowires. Since these WGMs are excited by induced surface nonlinear dipoles, they can be generated even when they are not coupled to the radiation continuum. Consequently, the quality factor of these nonlinear modes can be as large as the theoretical limit imposed by the optical losses in the metal. Remarkably, our theoretical analysis shows that nonlinear plasmonic WGMs are characterized by fractional azimuthal modal numbers. This suggests that the plasmonic cavities investigated here can be used to generate multi-color optical fields with fractional angular momentum. Applications to plasmonic sensors are also discussed.

  2. Cavity ring-up spectroscopy for dissipative and dispersive sensing in a whispering gallery mode resonator

    CERN Document Server

    Yang, Yong; Kasumie, Sho; Ward, Jonathan M; Chormaic, Síle Nic

    2016-01-01

    In whispering gallery mode resonator sensing applications, the conventional way to detect a change in the parameter to be measured is by observing the steady state transmission spectrum through the coupling waveguide. Alternatively, cavity ring-up spectroscopy (CRUS) sensing can be achieved transiently. In this work, we investigate CRUS using coupled mode equations and find analytical solutions with a large spectral broadening approximation of the input pulse. The relationships between the frequency detuning, coupling gap and ring-up peak height are determined and experimentally verified using an ultrahigh \\textit{Q}-factor silica microsphere. This work shows that distinctive dispersive and dissipative transient sensing can be realised by simply measuring the peak height of the CRUS signal, which might improve the data collection rate.

  3. Whispering gallery modes of dye-doped polymer microspheres in microtube

    Science.gov (United States)

    Li, Hanyang; Li, Jin; Hao, Sue; Qiang, Liangsheng; Zhang, Yundong

    2015-11-01

    A micro-system including a silica micro-tube (inner diameter≈6.2 μm) and dye-doped microspheres (diameter≈6 μm) was pumped by a 532 nm laser. The whispering gallery modes (WGMs) of fluorescence resonance were observed. Free Spectral Range (FSR) of single-sphere with diameters of 40 μm was 3.1 nm and with diameters of 6 μm was 5.4 nm. Two size-matched microspheres were coupled using a bi-sphere micro-system. Resonances from each sphere's evanescent field were coupled, which leads to resonance splitting. The measured resonance splitting in the spectra of the two coupled spheres is about ∆λ≈0.8 nm. The scheme would be a promising component in future micro-photonic devices.

  4. Collective behavior of Cr3 + ions in ruby revealed by whispering gallery modes

    Science.gov (United States)

    Bourhill, Jeremy; Goryachev, Maxim; Farr, Warrick G.; Tobar, Michael E.

    2015-08-01

    We present evidence for the collective action of Cr3 + ion impurities in a highly concentrated ruby crystal coupled to microwave whispering gallery modes (WGMs). The cylindrical geometry of the crystal allows the creation of superradiant or "spin-mode" doublets, with spatial structures similar to that of WGMs. The formation of these spin patterns allows us to observe directly different selection rules, namely, wave number and azimuthal phase matching. The demonstration is made via an avoided level crossing between spin and photon mode doublets as well as absence of coupling between spin modes of different wave numbers. The effect is observable due to strong spin-photon coupling (67 MHz) exceeding both spin ensemble and cavity losses as well as the photon doublet splitting. We demonstrate that a four harmonic oscillator model not only with coupling between photon resonances (0.43 MHz) but also with a spin doublet (73 MHz) is necessary to accurately describe these results.

  5. Dielectric tuning and coupling of whispering gallery modes using an anisotropic prism

    CERN Document Server

    Foreman, Matthew R; Schwefel, Harald G L; Leuchs, Gerd

    2016-01-01

    Optical whispering gallery mode (WGM) resonators are a powerful and versatile tool used in many branches of science. Fine tuning of the central frequency and line width of individual resonances is however desirable in a number of applications including frequency conversion, optical communications and efficient light-matter coupling. To this end we present a detailed theoretical analysis of dielectric tuning of WGMs supported in axisymmetric resonators. Using the Bethe-Schwinger equation and adopting an angular spectrum field representation we study the resonance shift and mode broadening of high $Q$ WGMs when a planar dielectric substrate is brought close to the resonator. Particular focus is given to use of a uniaxial substrate with an arbitrarily aligned optic axis. Competing red and blue resonance shifts ($\\sim 30$ MHz), deriving from generation of a near field material polarisation and back action from the radiation continuum respectively, are found. Anomalous resonance shifts can hence be observed depend...

  6. Nanoliter liquid characterization by open whispering-gallery mode dielectric resonators at millimeter wave frequencies

    Science.gov (United States)

    Shaforost, E. N.; Klein, N.; Vitusevich, S. A.; Offenhäusser, A.; Barannik, A. A.

    2008-10-01

    We present an approach for identification and concentration determination of liquids of pico to nanoliter volumes at a frequency of 35 GHz based on a whispering-gallery mode (WGM) dielectric resonator technique. A quasioptical coupling scheme based on dielectric image waveguides was employed to excite high-Q running wave WGMs with uniform azimuthal field distribution in cylindrical sapphire disks with quality factors up to 4×105 at room temperature. Measurement of the liquid induced changes in the resonator quality factor and resonance frequency has been performed for droplets down to 90 pl volume spotted at different positions on the surface of the sapphire disk. We have employed our method for concentration determination of ethanol, glucose, and albumin dissolved in water. Solutions with concentration values well below 10% could be clearly separated from pure water. Our method is promising for the characterization of biological liquids.

  7. Quantum electrodynamics in a whispering-gallery microcavity coated with a polymer nanolayer

    CERN Document Server

    Xiao, Yun-Feng; Xue, Peng; Xiao, Lixin; Li, Yan; Dong, Chun-Hua; Han, Zheng-Fu; Gong, Qihuang

    2010-01-01

    Quasi-transverse-electric and -transverse-magnetic fundamental whispering gallery modes in a polymer-coated silica microtoroid are theoretically investigated and demonstrated to possess very high-quality factors. The existence of a nanometer-thickness layer not only evidently reduces the cavity mode volume but also draws the maximal electric field's position of the mode to the outside of the silica toroid, where single quantum dots or nanocrystals are located. Both effects result in a strongly enhanced coherent interaction between a single dipole (for example, a single defect center in a diamond crystal) and the quantized cavity mode. Since the coated microtoroid is highly feasible and robust in experiments, it may offer an excellent platform to study strong-coupling cavity quantum electrodynamics, quantum information, and quantum computation.

  8. Quantum electrodynamics in a whispering-gallery microcavity coated with a polymer nanolayer

    International Nuclear Information System (INIS)

    Quasi-transverse-electric and -transverse-magnetic fundamental whispering gallery modes in a polymer-coated silica microtoroid are theoretically investigated and demonstrated to possess very high-quality factors. The existence of a nanometer-thickness layer not only evidently reduces the cavity mode volume but also draws the maximal electric field's position of the mode to the outside of the silica toroid, where single quantum dots or nanocrystals are located. Both effects result in a strongly enhanced coherent interaction between a single dipole (for example, a single defect center in a diamond crystal) and the quantized cavity mode. Since the coated microtoroid is highly feasible and robust in experiments, it may offer an excellent platform to study strong-coupling cavity quantum electrodynamics, quantum information, and quantum computation.

  9. Cavity optomechanics with whispering-gallery-mode optical micro-resonators

    CERN Document Server

    Schliesser, Albert

    2010-01-01

    Parametric coupling of optical and mechanical degrees of freedom forms the basis of many ultra-sensitive measurements of both force and mechanical displacement. An optical cavity with a mechanically compliant boundary enhances the optomechanical interaction, but also gives rise to qualitatively new coupled dynamics. As early as 1967, in a pioneering work, V. Braginsky analyzed theoretically the role of radiation pressure in the interferometric measurement process, but it has remained experimentally unexplored for many decades. Here, we use whispering-gallery-mode (WGM) optical microresonators to study these radiation pressure phenomena. Optical microresonators simultaneously host optical and mechanical modes, which are systematically analyzed and optimized to feature ultra-low mechanical dissipation, photon storage times exceeding the mechanical oscillation period (i.e. the "resolved-sideband regime") and large optomechanical coupling. It is demonstrated that dynamical backaction can be employed to cool mecha...

  10. Rayleigh Scattering of Whispering Gallery Modes of Microspheres due to a Single Scatterer: Myths and Reality

    CERN Document Server

    Deych, L

    2008-01-01

    The interaction of whispering gallery modes (WGM) of optical microresonators with subwavelength imperfections has been studied both experimentally and theoretically. This interaction is responsible for the formation of spectral doublets in place of single resonance peaks, and for degrading of Q-factors of the resonances. Within the currently accepted framework the spectral doublets are explained as a result of degeneracy removal of clockwise and counterclockwise WGMs due to their coupling caused by defect-induced backscattering, while the degrading of the Q-factor is described phenomenologically as an additional contribution to the overall decay rate of WGM due to coupling between WGM and radiative modes. Here we show that the existing understanding of this phenomenon is conceptually wrong and develop an exact theory of WGM interaction with a single defect, which provides a unified treatment for both aspects of this interaction explaining existing experiments and predicting new phenomena.

  11. Optical sum-frequency generation in a whispering-gallery-mode resonator

    International Nuclear Information System (INIS)

    We demonstrate sum-frequency generation between a telecom wavelength and the Rb D2 line, achieved through natural phase matching in a nonlinear whispering gallery mode resonator. Due to the strong optical field confinement and ultra high Q of the cavity, the process saturates already at sub-mW pump peak power, at least two orders of magnitude lower than in existing waveguide-based devices. The experimental data are in agreement with the nonlinear dynamics and phase matching theory based on spherical geometry. Our experimental and theoretical results point toward a new platform for manipulating the color and quantum states of light waves for applications such as atomic memory based quantum networking and logic operations with optical signals. (paper)

  12. Low-Threshold Optical Parametric Oscillations in a Whispering Gallery Mode Resonator

    DEFF Research Database (Denmark)

    Fürst, J. U.; Strekalov, D. V.; Elser, D.;

    2010-01-01

    In whispering gallery mode (WGM) resonator light is guided by continuous total internal reflection along a curved surface. Fabricating such resonators from an optically nonlinear material one takes advantage of their exceptionally high quality factors and small mode volumes to achieve extremely...... efficient optical frequency conversion. Our analysis of the phase-matching conditions for optical parametric down-conversion (PDC) in a spherical WGM resonator shows their direct relation to the sum rules for photons' angular momenta and predicts a very low parametric oscillation threshold. We realized such...... an optical parametric oscillator (OPO) based on naturally phase-matched PDC in lithium niobate. We demonstrated a single-mode, strongly nondegenerate OPO with a threshold of 6.7  μW and linewidth under 10 MHz. This work demonstrates the remarkable capabilities of WGM-based OPOs....

  13. Efficient single sideband microwave to optical conversion using an electro-optical whispering gallery mode resonator

    CERN Document Server

    Rueda, Alfredo; Collodo, Michele C; Vogl, Ulrich; Stiller, Birgit; Schunk, Gerhard; Strekalov, Dmitry V; Marquardt, Christoph; Fink, Johannes M; Painter, Oskar; Leuchs, Gerd; Schwefel, Harald G L

    2016-01-01

    Linking classical microwave electrical circuits to the optical telecommunication band is at the core of modern communication. Future quantum information networks will require coherent microwave-to-optical conversion to link electronic quantum processors and memories via low-loss optical telecommunication networks. Efficient conversion can be achieved with electro-optical modulators operating at the single microwave photon level. In the standard electro-optic modulation scheme this is impossible because both, up- and downconverted, sidebands are necessarily present. Here we demonstrate true single sideband up- or downconversion in a triply resonant whispering gallery mode resonator by explicitly addressing modes with asymmetric free spectral range. Compared to previous experiments, we show a three orders of magnitude improvement of the electro-optical conversion efficiency reaching 0.1% photon number conversion for a 10GHz microwave tone at 0.42mW of optical pump power. The presented scheme is fully compatible...

  14. Whispering-gallery-mode resonance sensor for dielectric sensing of drug tablets

    International Nuclear Information System (INIS)

    We propose, for the first time, the application of whispering gallery mode (WGM) perturbation technique in dielectric analysis of disk shape pharmaceutical tablets. Based on WGM resonance, a low-cost high sensitivity sensor in milllimeter-wave frequency range is presented. A comprehensive sensitivity analysis was performed to show that a change in the order of 10−4 in the sample permittivity can be detected by the proposed sensor. The results of various experiments carried out on drug tablets are reported to demonstrate the potential multifunctional capabilities of the sensor in moisture sensing, counterfeit drug detection and contamination screening. Analytically, two sample placement configurations, i.e. a tablet placed on top of a dielectric disk resonator and inside a dielectric ring resonator, have been studied to predict the resonance frequency and Q-factor of the combined sample-resonator structure. The accuracy of the analytical model was tested against full-wave simulations and experimental data

  15. Hyperparametric effects in a whispering-gallery mode rutile dielectric resonator at liquid helium temperatures

    Energy Technology Data Exchange (ETDEWEB)

    Nand, Nitin R.; Goryachev, Maxim; Floch, Jean-Michel le; Creedon, Daniel L.; Tobar, Michael E. [ARC Centre for Engineered Quantum Systems, School of Physics, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Western Australia (Australia)

    2014-10-07

    We report the first observation of low power drive level sensitivity, hyperparametric amplification, and single-mode hyperparametric oscillations in a dielectric rutile whispering-gallery mode resonator at 4.2 K. The latter gives rise to a comb of sidebands at 19.756 GHz. Whereas, most frequency combs in the literature have been observed in optical systems using an ensemble of equally spaced modes in microresonators or fibers, the present work represents generation of a frequency comb using only a single-mode. The experimental observations are explained by an additional 1/2 degree-of-freedom originating from an intrinsic material nonlinearity at optical frequencies, which affects the microwave properties due to the extremely low loss of rutile. Using a model based on lumped circuits, we demonstrate that the resonance between the photonic and material 1/2 degree-of-freedom, is responsible for the hyperparametric energy transfer in the system.

  16. Tikutõmbeid kottpimedas galeriis = Striking matches in a pitch-dark gallery : [luuletused] / Artur Alliksaar

    Index Scriptorium Estoniae

    Alliksaar, Artur, 1923-1966

    2001-01-01

    Tekst eesti ja inglise k. A. Alliksaare lühibiograafia eesti ja inglise k. lk. 55. Sisu: Tikutõmbeid kottpimedas galeriis = Striking matches in a pitch-dark gallery ; "Olen määratusuur mets..." = "I am infinitely vast forest..." ; "Olen koredate külgedega kalju..." = "I am rough-sided cliff..." ; "Olen meri, millel puudub äär..." = "I am sea that knows no bounds..." ; "Liikumine on niivõrd liitunud mu loomusega..." = "Movement is so much part of me..." ; "Ma ei söandaks öelda, et olen rikas..." = "I would not claim that I am rich..." ; Pöördehetk = Turning point ; Kuigi on nii palju lilli... = Though there are so many flowers ; Antidolorosum

  17. Visible Photoluminescence from Cubic (3C) Silicon Carbide Microdisks Coupled to High Quality Whispering Gallery Modes

    CERN Document Server

    Radulaski, Marina; Müller, Kai; Lagoudakis, Konstantinos G; Zhang, Jingyuan Linda; Buckley, Sonia; Kelaita, Yousif A; Alassaad, Kassem; Ferro, Gabriel; Vučković, Jelena

    2014-01-01

    We present the design, fabrication and characterization of cubic (3C) silicon carbide microdisk resonators with high quality factor modes at visible and near infrared wavelengths (600 - 950 nm). Whispering gallery modes with quality factors as high as 2,300 and corresponding mode volumes V ~ 2 ({\\lambda}/n)^3 are measured using laser scanning confocal microscopy at room temperature. We obtain excellent correspondence between transverse-magnetic (TM) and transverse-electric (TE) polarized resonances simulated using Finite Difference Time Domain (FDTD) method and those observed in experiment. These structures based on ensembles of optically active impurities in 3C-SiC resonators could play an important role in diverse applications of nonlinear and quantum photonics, including low power optical switching and quantum memories.

  18. Cascaded Brillouin lasing in monolithic barium fluoride whispering gallery mode resonators

    Energy Technology Data Exchange (ETDEWEB)

    Lin, Guoping, E-mail: guoping.lin@femto-st.fr; Diallo, Souleymane; Saleh, Khaldoun; Martinenghi, Romain; Beugnot, Jean-Charles; Sylvestre, Thibaut; Chembo, Yanne K. [Optics Department, FEMTO-ST Institute (CNRS UMR6174), 25030 Besançon (France)

    2014-12-08

    We report the observation of stimulated Brillouin scattering and lasing at 1550 nm in barium fluoride (BaF{sub 2}) crystal. Brillouin lasing was achieved with ultra-high quality (Q) factor monolithic whispering gallery mode mm-size disk resonators. Overmoded resonators were specifically used to provide cavity resonances for both the pump and all Brillouin Stokes waves. Single and multiple Brillouin Stokes radiations with frequency shift ranging from 8.2 GHz up to 49 GHz have been generated through cascaded Brillouin lasing. BaF{sub 2} resonator-based Brillouin lasing can find potential applications for high-coherence lasers and microwave photonics.

  19. Thermal-noise-limited crystalline whispering-gallery-mode resonator for laser stabilization

    International Nuclear Information System (INIS)

    We have stabilized an external cavity diode laser to a whispering gallery mode resonator formed by a protrusion of a single-crystal magnesium fluoride cylinder. The cylinder's compact dimensions ((less-or-similar sign)1 cm3) reduce the sensitivity to vibrations and simplify the stabilization of its temperature in a compact setup. In a comparison to an ultrastable laser used for precision metrology we determine a minimum Allan deviation of 20 Hz at an optical wavelength of 972 nm, corresponding to a relative Allan deviation of 6x10-14, at an integration time of 100 ms. This level of instability is compatible with the limits imposed by fundamental fluctuations of the material's refractive index at room temperature.

  20. Integrated microsphere whispering gallery mode probe for highly sensitive refractive index measurement

    Science.gov (United States)

    Wang, Hanzheng; Yuan, Lei; Kim, Cheol-Woon; Huang, Jie; Lan, Xinwei; Xiao, Hai

    2016-06-01

    We report an integrated whispering gallery mode microresonator-based sensor probe for refractive index sensing. The probe was made by sealing a borosilicate glass microsphere into a thin-wall glass capillary pigtailed with a multimode optical fiber. The intensities of the resonant peaks were found decreasing exponentially (linearly in a log scale) with the increasing refractive index of the medium surrounding the capillary. The sensing capability of the integrated probe was tested using sucrose solutions of different concentrations and the resolution was estimated to be about 2.5×10-5 in the index range of 1.3458 to 1.3847. The integrated sensor probe may prove useful in many chemical and biological sensing applications where highly sensitive refractive index monitoring is needed.

  1. Barium fluoride whispering-gallery-mode disk-resonator with one billion quality-factor

    CERN Document Server

    Lin, Guoping; Henriet, Rémi; Jacquot, Maxime; Chembo, Yanne K

    2015-01-01

    We demonstrate a monolithic optical whispering gallery mode resonator fabricated with barium fluoride (BaF$_2$) with an ultra-high quality ($Q$) factor above $10^9$ at $1550$ nm, and measured with both the linewidth and cavity-ring-down methods. Vertical scanning optical profilometry shows that the root mean square surface roughness of $2$ nm is achieved for our mm-size disk. To the best of our knowledge, we show for the first time that one billion $Q$-factor is achievable by precision polishing in relatively soft crystals with mohs hardness of ~$3$. We show that complex thermo-optical dynamics can take place in these resonators. Beside usual applications in nonlinear optics and microwave photonics, high energy particle scintillation detection utilizing monolithic BaF$_2$ resonators potentially becomes feasible.

  2. Study On Planar Whispering Gallery Dielectric Resonators; 2, A Multiple-Band Device

    CERN Document Server

    Annino, G; Martinelli, M

    2002-01-01

    The basic theory underlying the realization of simple multiple-band non-homogeneous dielectric resonators, whose spectral response is the overlap of single-resonator frequency bands, is developed exploiting a general approach discussed in the previous companion paper. The limit frequencies of the proposed devices, given only by the dielectric properties of the involved materials, can differ in principle by several decades. Experimental confirmations have been obtained on a composite structure built up with teflon and polyethylene; as predicted by the theory, the overall band includes frequencies which range about from 20 GHz to more than 400 GHz, when high frequency resonances are selectively excited. The localization of the higher frequency radiation between the positive steps of the dielectric constant, which is the basic properties of these non-homogeneous resonators, has been experimentally verified by mapping the electromagnetic field intensity. Possible applications of multiple-band Whispering Gallery d...

  3. Barium fluoride whispering-gallery-mode disk-resonator with one billion quality-factor.

    Science.gov (United States)

    Lin, Guoping; Diallo, Souleymane; Henriet, Rémi; Jacquot, Maxime; Chembo, Yanne K

    2014-10-15

    We demonstrate a monolithic optical whispering-gallery-mode resonator fabricated with barium fluoride (BaF₂) with an ultra-high quality (Q) factor above 10⁹ at 1550 nm, and measured with both the linewidth and cavity-ring-down methods. Vertical scanning optical profilometry shows that the root mean square surface roughness of 2 nm is achieved for our mm-size disk. To the best of our knowledge, we show for the first time that one billion Q-factor is achievable by precision polishing in relatively soft crystals with mohs hardness of 3. We show that complex thermo-optical dynamics can take place in these resonators. Beside usual applications in nonlinear optics and microwave photonics, high-energy particle scintillation detection utilizing monolithic BaF₂ resonators potentially becomes feasible. PMID:25361142

  4. Novel ophiostomatalean fungi from galleries of Cyrtogenius africus (Scolytinae) infesting dying Euphorbia ingens.

    Science.gov (United States)

    van der Linde, Johannes Alwyn; Six, Diana L; De Beer, Wilhelm Z; Wingfield, Michael J; Roux, Jolanda

    2016-04-01

    Euphorbia ingens trees have been dying in large numbers in the Limpopo Province of South Africa for approximately 15 years. The ambrosia beetle Cyrtogenius africus is often found infesting diseased and dying trees. The aim of this study was to identify the ophiostomatoid fungi occurring in the galleries of C. africus. Logs infested with this beetle were collected from the KwaZulu-Natal, Limpopo, Mpumalanga, and North West Provinces of South Africa. Fungi belonging to the Ophiostomatales were identified based on morphology and comparison of sequence data for the β-tubulin, ITS1-5.8S-ITS2 and LSU gene regions. A novel species of Ophiostoma and a novel genus in the Ophiostomatales were identified. Inoculation studies with these fungi produced lesions in the branches of healthy E. ingens trees. PMID:26846285

  5. Art Toys in the contemporary art scene

    Directory of Open Access Journals (Sweden)

    Laura Sernissi

    2014-03-01

    Full Text Available The Art Toys phenomenon, better known as Art Toy Movement, was born in China in the mid-nineties and quickly spread out to the rest of the world. The toys are an artistic production of serial sculpture, made by handcrafts or on an industrial scale. There are several types of toys, such as custom toys and canvas toys, synonyms of designer toys, although they are often defined according to the constituent material, such as vinyl toys (plastic and plush toys (fabric. Art toys are the heirs of an already pop-surrealist and neo-pop circuit, which since the eighties of the twentieth century has pervaded the Japanese-American art scene, winking to the playful spirit of the avant-garde of the early century. Some psychoanalytic, pedagogical and anthropological studies about “play theories”, may also help us to understand and identify these heterogeneous products as real works of art and not simply as collectible toys.

  6. Retóricas de la pandemia. Derivas y resistencias en torno al arte argentino frente a la crisis del sida

    Directory of Open Access Journals (Sweden)

    Francisco Lemus

    2015-06-01

    Full Text Available This paper investigates the political-discourse relations between Grupo de Acción Gay (1984-1985 and the aesthetic and curatorial model devised by Jorge Gumier Maier in the Gallery of Visual Arts of Centro Cultural Rojas (1989-1997 in order to reflect on gay subjectivity processes generated from the impact of AIDS in Buenos Aires and resistance strategies into the art scene of the nineties. From these ideas, this work analyzes a group of images produced by Marcelo Pombo between 1982 and 1989 that introduce some questions about the troubled socio-sexual identity of homosexuality and the rhetoric of elimination on the AIDS pandemic.

  7. Martial Arts Club

    CERN Multimedia

    Martial Arts Club

    2010-01-01

    In July 2010, after five years of activity, the CERN Martial Arts held its first international Bujutsu seminar, gathering more than 40 participants from France, Switzerland, Sweden and Japan. The seminar was led by Master Shimazu Kenji, world-renowned martial arts expert based in Tokyo and headmaster of the Yagyu Shingan Ryu school, present in Europe specifically for the occasion. During nine days, participants got to discover the wide array of Bujutsu techniques and traditions of an ancestral martial art that finds its roots in the art and lives of Japanese samurais. Covering such varied subjects as self-defense techniques (Jujitsu), swordsmanship (Kenjutsu), through to healing techniques and etiquette, it encompasses all aspects of a way of life that still find echoes in today's modern Japanese society. The CERN Martial Arts club wishes to thank particularly the CERN Clubs Committee and its president Rachel Bray for their support in organizing this event. The CERN Martial Arts club, led by Sylvai...

  8. Art, Technology and Nature

    DEFF Research Database (Denmark)

    Since 1900, the connections between art and technology with nature have become increasingly inextricable. Through a selection of innovative readings by international scholars, this book presents the first investigation of the intersections between art, technology and nature in post-medieval times....... Transdisciplinary in approach, this volume’s 14 essays explore art, technology and nature’s shifting constellations that are discernible at the micro level and as part of a larger chronological pattern. Included are subjects ranging from Renaissance wooden dolls, science in the Italian art academies, and artisanal...... Camilla Skovbjerg Paldam and Jacob Wamberg trace the Kantian heritage of radically separating art and technology, and inserting both at a distance to nature, suggesting this was a transient chapter in history. Thus, they argue, the present renegotiation between art, technology and nature is reminiscent...

  9. Arquitectura, arte funcional

    Directory of Open Access Journals (Sweden)

    Monjo Carrió, Juan

    1985-10-01

    Full Text Available The begining of this work is devoted to the analysis of the concepts of Art, Science and Technique and their historical evolution, distinguishing between "fine arts" and "technique arts". Following, Architect and Architecture terms are defined both conceptual and professionally, analysing as well its historical evolution and pointing out the interdependence between the architectural conception as "fine art" and the constructive technology as "technique art", finally reminding the necessary scientific base of this one (Construction Physics. Consequently, the need for architecture professionals of constructive technology knowledge, is also reminded. At last, the functional character of the Architecture (Architecture as a "functional art" is analysed, going over the three basic aspects of this functionality (Integrity-firmitas, Habitability-utilitas and Aesthetics-venustas.Se inicia el trabajo analizando los conceptos de Arte, Ciencia y Técnica y su evolución histórica, distinguiendo entre ¡as "bellas artes" y las "artes técnicas". A continuación se definen los conceptos de Arquitecto y Arquitectura, tanto conceptual como profesionalmente, analizando, asimismo, su evolución histórica y haciendo hincapié en la interdependencia entre la concepción arquitectónica como "bella arte" y la tecnología constructiva como "arte técnica", para terminar recordando la necesaria base científica de esta última (la Física de la Construcción. Como consecuencia, se recuerda la necesidad de los conocimientos de la tecnología constructiva en los arquitectos profesionales. Por último, se analiza el carácter funcional de la Arquitectura (Arquitectura como "arte funcional" y se hace un breve recorrido por los tres aspectos básicos de esa funcionalidad (Integridad-firmitas, Habitabilidad-utilitas y Estética-venustas.

  10. When Art & Finance Collide

    Institute of Scientific and Technical Information of China (English)

    Yu Lintao

    2011-01-01

    CHINA'S art market is on fire.As sales and prices break records,a new force has appeared in the market-organized art finance in the form of art trust funds and artwork exchanges.It was reported that the anonymous winner of the bid for the Song Dynasty calligraphy work Dizhuming by Huang Tingjian (1045-1105).which was sold for a staggering 436.

  11. ART AND BRAIN

    OpenAIRE

    Thomashoff, Hans-otto

    2012-01-01

    The different levels of influence on the brain´s construction of art are highlighted, starting from inborn and likely genetically determined stylistic features and leading to the traces of internalized earlier life experiences onto the art created, including the cultural environment. Art evolves in the biology of the brain parallel to the concepts we establish to define ourselves as persons. It is the interaction between the biological raw model and the perception of outer stimuli which leads...

  12. Characteristics of Matisse art

    Institute of Scientific and Technical Information of China (English)

    葛环玉

    2012-01-01

      Henri Matisse, a rewritten history of modern art, is a deserved leader of Fauvism. Not subject to the limitations inherent color on color relationships, There is an decorative effect on the screen with Matisse. The u-nity of pure colors and lines, characters and background fusion in a decorative techniques. Matisse embarked on a far-reaching impact on 20th-century art, the avant-garde art of the road, the influence of his art and ideas to the younger generation is inestimable

  13. Computer Games and Art

    Directory of Open Access Journals (Sweden)

    Anton Sukhov

    2015-10-01

    Full Text Available This article devoted to the search of relevant sources (primary and secondary and characteristics of computer games that allow to include them in the field of art (such as the creation of artistic games, computer graphics, active interaction with other forms of art, signs of spiritual aesthetic act, own temporality of computer games, “aesthetic illusion”, interactivity. In general, modern computer games can be attributed to commercial art and popular culture (blockbuster games and to elite forms of contemporary media art (author’s games, visionary games.

  14. Art Meta-4

    DEFF Research Database (Denmark)

    Mehlsen, Camilla; Jensen, Hans Siggaard

    2003-01-01

    Managing through Variety: The European Style. 3rd European Academy of Management (EURAM) Conference , Milan (Italy). 2003 Short description: This paper focuses on the use of art metaphors in today?s world of management and organizational practice. Abstract: This paper focuses on the use of art...... metaphors in today?s world of management and organizational practice. It tells the story of how art has entered the organizational stage as a metaphorical role model and how art is a metaphor we live and manage by. The story is in particular concerned with artistic images of organizations that frame...

  15. School of the Arts seeks arts organizations and artists for participation in ArtsFusion 2008

    OpenAIRE

    Adams, Louise

    2008-01-01

    Virginia Tech School of the Arts announces ArtsFusion 2008, a weeklong celebration of the arts throughout the New River Valley scheduled for April 12 through April 19. ArtsFusion 2008 is seeking participation by arts organizations and artists both on campus and throughout the New River Valley working in music, film, theatre, dance, creative writing, and the visual arts.

  16. Interactions of Art and Art Pedagogy : Theory and Practice

    OpenAIRE

    Klāsone, Inta

    2015-01-01

    The article raises the issue of the link between art and its variet expressions of form with pedegaogy of art. A number of important directions of scientific research in art pedagogy are highlighted on the basis of the scientific knowledge base in the world and Latvian Education Area, guidelines of National Strategic Guidance, trends in art and art education, and summary of survey data. Object of the research is the interaction process between art and art education for improvement of pedagogi...

  17. Influence Of Art System Of Environmental Art And Design

    Institute of Scientific and Technical Information of China (English)

    贾弱苗

    2015-01-01

    Environmental art design refers to the construction of indoor and outdoor space environment, integration design a practical way of art through art and design.Art system is the existence of a specific period of art ideas and knowledge systems, as well as artwork for the existence of production, dissemination, complete social mechanisms consumption evaluation. Environmental art design in its production to consumption process, restriction and help inseparable art system.

  18. Environment between System and Nature: Alan Sonfist and the Art of the Cybernetic Environment

    Directory of Open Access Journals (Sweden)

    Etienne Benson

    2014-09-01

    Full Text Available This paper examines the role of systems thinking in environmental(ist art and activism through a close reading and contextualization of Army Ants: Patterns and Structures (1972, an installation by Alan Sonfist, one of the leading figures in U.S. land art and environmental art of the 1960s and 1970s. It challenges a commonly held retrospective understanding of "environmental art" as being inherently about bringing nature into art (or into the gallery by showing how important systems thinking, which blurred the natural-cultural divide, was to Sonfist and other artists of the time. It suggests that these two understandings of the environment -- one focused on nature, the other on systems -- were both allied and in tension, and that the unexpected technical problems faced by Army Ants can be attributed at least in part to a failure to acknowledge those tensions. Similarly, the paper suggests, the legacy of glossing over these different understandings of the environment has been at the root of broader conceptual problems with environmental art and activism.

  19. Development of the concept of the festival of street arts as an instrument to enhance the attractiveness of the modern city

    Directory of Open Access Journals (Sweden)

    Dubinkina Ekaterina

    2016-06-01

    Full Text Available The article is devoted to the organisation and holding of festivals. Festival projects today are a way of formation and promotion of brands, attracting tourists, advertising goods and services, forming the image of the region, the city, transformation of the urban environment, drawing attention to various problems. The purpose of this research is to describe the features of the development and holding of the festival of street arts as an instrument to enhance the attractiveness of the modern city. The object of this research is the concept of the festival of street arts on the basis of the gallery "Sweater", which can be used as a practical guide to the implementation of the project, as well as the methodical basis for the development of social and cultural projects, such as festivals. The article reveals the concept of street art not only as a form of painting – graffiti, but the art, born in the streets, and comprising street musicians, singers, actors, photographers and dancers. The concept of the festival, its functions and types have been disclosed, the possibility of the organisation of the festival on the basis of the gallery "Sweater" and organisational content for it have been also analysed. There has been created the concept of the event. All the stages of its organisation and implementation have been examined. Expected results of the "festival of street arts" have been determined, and the prospects for its further development have been outlined.

  20. Wearable Arts of Japan: Seattle Art Museum.

    Science.gov (United States)

    Loudon, Sarah

    1996-01-01

    Presents four lesson plans centered around artworks involving Japanese clothing. Instructional materials include color plates of a 19th century print showing women's clothing, two beautifully handcrafted coats, and a coverlet in kimono form. The lesson plans discuss Japanese clothing, art, society, and culture. (MJP)

  1. Art Literature and Theory of Art

    NARCIS (Netherlands)

    T. Weststeijn

    2013-01-01

    In contrast to theories of poetry or rhetoric, no complete ancient theory of the figurative arts survives. Renaissance authors wishing to underpin the "rebirth" of painting therefore had to resort to a variety of strategies to invent a new genre. Literary metaphors and fragments from artists’ biogra

  2. Pragmatics of Raw Art

    DEFF Research Database (Denmark)

    Wilson, Alexander

    2014-01-01

    In the last several decades, art has seen the dissolution of the old avant-garde critical grid. Gone are the days of absolutes and manifestos. The most varied styles have been absorbed into the postmodern pastiche, outsider artworks have been traded for large sums on the fine-art market, and a co...

  3. The Boutique Liberal Arts?

    Science.gov (United States)

    Cohen, Scott

    2014-01-01

    The structure of higher education today, in conjunction with those actively trying to devalue a liberal arts degree in the public sphere, has set the table for what seems like a completely rational solution: finding a "niche." Broadly speaking, colleges offering a liberal arts education identify their "niche market" in terms of…

  4. Experiencing affective interactive art

    NARCIS (Netherlands)

    Bialoskorski, Leticia S.S.; Westerink, Joyce H.D.M.; Broek, van den Egon L.

    2010-01-01

    The progress in the field of affective computing enables the realization of affective art. This paper describes the affective interactive art system Mood Swings, which interprets and visualizes affect expressed by a person. Mood Swings is founded on the integration of a framework for affective move

  5. Arte Brasileno Erudito y Arte Brasileno Popular. (Brazilian Fine Art and Brazilian Popular Art)

    Science.gov (United States)

    Valladares, Clarival Do Prado

    1969-01-01

    Class differences in Brazil explain the inequality between the art produced in the high strata of society and that originating in the economically inferior communities. Genuine expression of art degenerates for two reasons: the influence of modern industrial civilization and the tendency to satisfy the taste of the acquisitive group. (Author/MF)

  6. Migrating Art History

    DEFF Research Database (Denmark)

    Ørum, Tania

    2012-01-01

    Review of Hiroko Ikegami, The Great Migrator. Robert Rauschenberg and the Global Rise of American Art. Cambridge Mass., The MIT Press, 2010. 277 pages. ISBN 978-0-262-01425-0.......Review of Hiroko Ikegami, The Great Migrator. Robert Rauschenberg and the Global Rise of American Art. Cambridge Mass., The MIT Press, 2010. 277 pages. ISBN 978-0-262-01425-0....

  7. Facing Sound - Voicing Art

    DEFF Research Database (Denmark)

    Lønstrup, Ansa

    2013-01-01

    This article is based on examples of contemporary audiovisual art, with a special focus on the Tony Oursler exhibition Face to Face at Aarhus Art Museum ARoS in Denmark in March-July 2012. My investigation involves a combination of qualitative interviews with visitors, observations of the audience...

  8. Tangrams: Puzzles of Art

    Science.gov (United States)

    Fee, Brenda

    2009-01-01

    Challenging one's brain is the beginning of making great art. Tangrams are a great way to keep students thinking about their latest art project long after leaving the classroom. A tangram is a Chinese puzzle. The earliest known reference to tangrams appears in a Chinese book dated 1813, but the puzzles existed long before that date. The puzzle…

  9. Artfulness i skolen

    DEFF Research Database (Denmark)

    Chemi, Tatiana

    how many good arguments must the arts find to be looked at as worthwhile school subjects? This chapter finds its arguments within evolutionary biology and anthropology.......how many good arguments must the arts find to be looked at as worthwhile school subjects? This chapter finds its arguments within evolutionary biology and anthropology....

  10. Culinary Arts Profile.

    Science.gov (United States)

    Missouri Univ., Columbia. Instructional Materials Lab.

    This chart is intended for use in documenting the fact that a student participating in a culinary arts program has achieved the performance standards specified in the Missouri Competency Profile for culinary arts. The chart includes space for recording basic student and instructor information and the student's on-the-job training and work…

  11. Big Ideas in Art

    Science.gov (United States)

    Day, Kathleen

    2008-01-01

    In this article, the author shares how she was able to discover some big ideas about art education. She relates how she found great ideas to improve her teaching from the book "Rethinking Curriculum in Art." She also shares how she designed a "Big Idea" unit in her class.

  12. Teaching Art Abroad

    Science.gov (United States)

    Enderle, Melissa

    2007-01-01

    In this article, the author describes her experiences as an overseas art teacher. She relates how teaching art and living overseas has provided her with new opportunities to work with a diverse student and faculty population. She also relates how living abroad has made her learn about foreign countries and their inhabitants in an in-depth and…

  13. The Art of Mexico.

    Science.gov (United States)

    Saccardi, Marianne

    1997-01-01

    Provides an annotated bibliography of books for grades K and up which explores the folklore, poetry, fiction, and art of Mexico, and focuses on the Mayans and Aztecs and Diego Rivera and Frida Kahlo. Also suggests various research, reading, drama, music, social studies, physical education, and art activities and lists related videos and Internet…

  14. Messurement, Diagram, Art

    DEFF Research Database (Denmark)

    May, Michael; Stjernfelt, Frederik

    1996-01-01

    Discussion of the semiotic concept of the iconic sign according to Charles S. Peirce and its importance for the understanding of "diagrammatic reasoning" in science and art.......Discussion of the semiotic concept of the iconic sign according to Charles S. Peirce and its importance for the understanding of "diagrammatic reasoning" in science and art....

  15. The arts as healing.

    Science.gov (United States)

    Kivnick, H Q; Erikson, J M

    1983-10-01

    The relationship between artistic involvement and individual mental health is considered, and the concept of "healing" is differentiated from that of "therapy." Seven properties of art experience are identified which, when developed, have contributed to patients' recovery from mental illness. Implications of these properties for clinical programs, and the related value of art experience for non-patients, are discussed. PMID:6638153

  16. Art on the Move

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    Beijing experiments with art installations in its subway systems to explore the dynamics of urban life Art will soon imbue many subway stations and even trains in Beijing. The newest subway line in the capital city’s mass transit network, Line 4, distinguishes itself from the rest with large decorative frescoes and bas-relief works at its eight major stations.

  17. ICT in the Arts

    DEFF Research Database (Denmark)

    Brooks, Anthony Lewis

    2014-01-01

    Increased use of ICT in art projects opens novel opportunities for contemporary artists seeking innovative means to create and express beyond the traditional in new ways and places. This can also be beyond what is conventionally considered art. Thus, wider and transdisciplinary philosophical...

  18. The Art of Education

    Science.gov (United States)

    Abdul-Alim, Jamaal

    2012-01-01

    Dr. Robert F. Sabol, professor of visual and performing arts at Purdue University says that art education has suffered some serious setbacks since No Child Left Behind--the landmark federal education law that put a greater emphasis on high-stakes testing. Since No Child Left Behind became law in 2002, school systems--under increased pressure to…

  19. Mola Art: Elementary

    Science.gov (United States)

    Barsamian, Araxey

    2004-01-01

    In this brief article, the author describes a lesson plan on Mola art she used in her elementary classroom. Using four examples of Kuna Indian molas, the teacher introduced students to the beautiful, colorful, creative art form of molas. The Kuna women have been making these layered pieces of cloth for more than one hundred years. They use a…

  20. Art as Peace Building

    Science.gov (United States)

    Marshall, Laurie

    2014-01-01

    Art educators can "critique" senseless violence--mistreatment, exclusion, intimidation, bullying, violation, abuse, corruption, murder, and war--by unleashing the power of students' creativity. In this article, the author, sharing her philosophical context, discusses how art is preventative medicine with the power to transform the…

  1. Visual Arts Research, 1994.

    Science.gov (United States)

    Gardner, Nancy C., Ed.; Thompson, Christine, Ed.

    1994-01-01

    This document consists of the two issues of the journal "Visual Arts in Research" published in 1994. This journal focuses on the theory and practice of visual arts education from educational, historical, philosophical, and psychological perspectives. Number 1 of this volume includes the following contributions: (1) "Zooming in on the Qualitative…

  2. Parallels in the Arts

    Science.gov (United States)

    Laffey, Grace

    1972-01-01

    A mini-course of nine weeks was organized as a laboratory course to survey relationships in literature, music, and art. Three periods in the arts (Romanticism, Impressionism, and Contemporary) were matched with three major activities; the basic areas of study and activity were poetry, short story, and novel. (Author)

  3. Geometry and Op Art.

    Science.gov (United States)

    Brewer, Evelyn J.

    1999-01-01

    Describes an activity in which students use computers and techniques from Op Art to learn various geometric concepts. Allows them to see the distinct connection between art and mathematics from a personal perspective. Reinforces writing, speaking, and drawing skills while creating slide shows related to the project. (ASK)

  4. Contemporary Danish book art

    DEFF Research Database (Denmark)

    Larsen, Poul Steen

    the Metropolitan Museum of Art, Thomas J. Watson Library, Helge Ernst, illustrator, Poul Kristensen, printer, Ole Olsen, bookbinder, exhibition catalog......the Metropolitan Museum of Art, Thomas J. Watson Library, Helge Ernst, illustrator, Poul Kristensen, printer, Ole Olsen, bookbinder, exhibition catalog...

  5. Gerontology and the Arts.

    Science.gov (United States)

    Jones, Jean Ellen, Ed.

    1982-01-01

    Reviews research on the place of the arts in programs for the elderly. In nine articles deals with characteristics and attitudes of adult students in art and music, dance therapy, and creativity. Discusses the aging advocacy movement and suggests it can be useful to program planners and gerontologists. (JAC)

  6. Support for Arts Education. State Arts Agency Fact Sheet

    Science.gov (United States)

    National Assembly of State Arts Agencies, 2011

    2011-01-01

    Supporting lifelong learning in the arts is a top priority for state arts agencies. By supporting arts education in the schools, state arts agencies foster young imaginations, address core academic standards, and promote the critical thinking and creativity skills essential to a 21st century work force. State arts agencies also support…

  7. Old Friends, Bookends: Art Educators and Art Therapists

    Science.gov (United States)

    Allison, Amanda

    2013-01-01

    This viewpoint presents a reflection on a meaningful relationship that developed between a university art education department and a local art therapy studio. Such partnerships are desirable and mutually beneficial because of the significant interest many art educators have in the field of art therapy. The author, an art educator, describes the…

  8. Origins: science inspires art

    CERN Multimedia

    CERN Bulletin

    2011-01-01

    From 8 December 2011 to 17 February 2012, Geneva University's physics faculty will be holding an exhibition called "L'Origine – un voyage entre la Science et l'Art". Thirty artists from Europe and Africa will be exhibiting their work.   The aim of the exhibition is to take the visitor on an imaginary journey to the origins of mankind and to show how science and art approach the same theme from different angles. The works on display will include pieces of Makonde art, a traditional art form native to Mozambique, created by artists of the Nairucu Arts centre. The cultural programme that will run alongside the exhibition will include lectures on contemporary scientific themes aimed at the general public. Visitors will also have the opportunity to discover "L’Origine", a book of poetry by Beatrice Bressan (Ed. Loreleo, Geneva, 2010), which was awarded the third prize in the “Poeti nella società&...

  9. Art and human nature

    Directory of Open Access Journals (Sweden)

    Mirta Toledo

    2008-06-01

    Full Text Available This article presents a visual artist’s point of view about art. This view confronts the Eurocentric traditional cannon with some ignored, but valuable traditions, thus proposing a contra-canon. These ideas are examined on the light of a variety of sources, including prehistoric, pre-Columbian, and 20th century art expressions, in a variety of media, from sculpture to literature. Recent art expressions are characterized by their incorporation of minority values and perspectives that challenge “universal” views. Using samples of works from Latino and African American artists, the author shows that, even today, art is a means to know the world and its people, to exhibit personal life, to create personal symbolism, and to show one’s identity or the search for it. Like the human nature it represents, art has multiple faces.

  10. Who art thou? Personality predictors of artistic preferences in a large UK sample: the importance of openness.

    Science.gov (United States)

    Chamorro-Premuzic, Tomas; Reimers, Stian; Hsu, Anne; Ahmetoglu, Gorkan

    2009-08-01

    The present study examined individual differences in artistic preferences in a sample of 91,692 participants (60% women and 40% men), aged 13-90 years. Participants completed a Big Five personality inventory (Goldberg, 1999) and provided preference ratings for 24 different paintings corresponding to cubism, renaissance, impressionism, and Japanese art, which loaded on to a latent factor of overall art preferences. As expected, the personality trait openness to experience was the strongest and only consistent personality correlate of artistic preferences, affecting both overall and specific preferences, as well as visits to galleries, and artistic (rather than scientific) self-perception. Overall preferences were also positively influenced by age and visits to art galleries, and to a lesser degree, by artistic self-perception and conscientiousness (negatively). As for specific styles, after overall preferences were accounted for, more agreeable, more conscientious and less open individuals reported higher preference levels for impressionist, younger and more extraverted participants showed higher levels of preference for cubism (as did males), and younger participants, as well as males, reported higher levels of preferences for renaissance. Limitations and recommendations for future research are discussed. PMID:19026107

  11. Development and validation of a CFD model predicting the backfill process of a nuclear waste gallery

    Energy Technology Data Exchange (ETDEWEB)

    Gopala, Vinay Ramohalli, E-mail: gopala@nrg.eu [Nuclear Research and consultancy Group (NRG), P.O. Box 25, 1755 ZG Petten (Netherlands); Lycklama a Nijeholt, Jan-Aiso [Nuclear Research and consultancy Group (NRG), P.O. Box 25, 1755 ZG Petten (Netherlands); Bakker, Paul [Van Hattum en Blankevoort, Woerden (Netherlands); Haverkate, Benno [Nuclear Research and consultancy Group (NRG), P.O. Box 25, 1755 ZG Petten (Netherlands)

    2011-07-15

    Research highlights: > This work presents the CFD simulation of the backfill process of Supercontainers with nuclear waste emplaced in a disposal gallery. > The cement-based material used for backfill is grout and the flow of grout is modelled as a Bingham fluid. > The model is verified against an analytical solution and validated against the flowability tests for concrete. > Comparison between backfill plexiglas experiment and simulation shows a distinct difference in the filling pattern. > The numerical model needs to be further developed to include segregation effects and thixotropic behavior of grout. - Abstract: Nuclear waste material may be stored in underground tunnels for long term storage. The example treated in this article is based on the current Belgian disposal concept for High-Level Waste (HLW), in which the nuclear waste material is packed in concrete shielded packages, called Supercontainers, which are inserted into these tunnels. After placement of the packages in the underground tunnels, the remaining voids between the packages and the tunnel lining is filled-up with a cement-based material called grout in order to encase the stored containers into the underground spacing. This encasement of the stored containers inside the tunnels is known as the backfill process. A good backfill process is necessary to stabilize the waste gallery against ground settlements. A numerical model to simulate the backfill process can help to improve and optimize the process by ensuring a homogeneous filling with no air voids and also optimization of the injection positions to achieve a homogeneous filling. The objective of the present work is to develop such a numerical code that can predict the backfill process well and validate the model against the available experiments and analytical solutions. In the present work the rheology of Grout is modelled as a Bingham fluid which is implemented in OpenFOAM - a finite volume-based open source computational fluid dynamics

  12. Development and validation of a CFD model predicting the backfill process of a nuclear waste gallery

    International Nuclear Information System (INIS)

    Research highlights: → This work presents the CFD simulation of the backfill process of Supercontainers with nuclear waste emplaced in a disposal gallery. → The cement-based material used for backfill is grout and the flow of grout is modelled as a Bingham fluid. → The model is verified against an analytical solution and validated against the flowability tests for concrete. → Comparison between backfill plexiglas experiment and simulation shows a distinct difference in the filling pattern. → The numerical model needs to be further developed to include segregation effects and thixotropic behavior of grout. - Abstract: Nuclear waste material may be stored in underground tunnels for long term storage. The example treated in this article is based on the current Belgian disposal concept for High-Level Waste (HLW), in which the nuclear waste material is packed in concrete shielded packages, called Supercontainers, which are inserted into these tunnels. After placement of the packages in the underground tunnels, the remaining voids between the packages and the tunnel lining is filled-up with a cement-based material called grout in order to encase the stored containers into the underground spacing. This encasement of the stored containers inside the tunnels is known as the backfill process. A good backfill process is necessary to stabilize the waste gallery against ground settlements. A numerical model to simulate the backfill process can help to improve and optimize the process by ensuring a homogeneous filling with no air voids and also optimization of the injection positions to achieve a homogeneous filling. The objective of the present work is to develop such a numerical code that can predict the backfill process well and validate the model against the available experiments and analytical solutions. In the present work the rheology of Grout is modelled as a Bingham fluid which is implemented in OpenFOAM - a finite volume-based open source computational fluid

  13. High Q-factor Sapphire Whispering Gallery Mode Microwave Resonator at Single Photon Energies and milli-Kelvin Temperatures

    CERN Document Server

    Creedon, Daniel L; Farr, Warrick; Martinis, John M; Duty, Timothy L; Tobar, Michael E

    2011-01-01

    The microwave properties of a crystalline sapphire dielectric whispering gallery mode resonator have been measured at very low excitation strength (E/hf=1) and low temperatures (T = 30 mK). The measurements were sensitive enough to observe saturation due to a highly detuned electron spin resonance, which limited the loss tangent of the material to about 2e-8 measured at 13.868 and 13.259 GHz. Small power dependent frequency shifts were also measured which correspond to an added magnetic susceptibility of order 1e-9. This work shows that quantum limited microwave resonators with Q-factors > 1e8 are possible with the implementation of a sapphire whispering gallery mode system.

  14. Termite (Insecta, Isoptera assemblage of a gallery forest relic from the Chaco province (Argentina: taxonomic and functional groups

    Directory of Open Access Journals (Sweden)

    Godoy, M. C.

    2013-04-01

    Full Text Available Termite fauna of the gallery forest in the Colonia Benitez Reserve (Chaco province, Argentina were analyzed using the rapid diversity assessment protocol (100 x 2 m transects. Twelve species, 10 genera and two families (Kalotermitidae and Termitidae, were detected, comprising the four feeding groups recognized for termites. True soil–feeders (IV showed the highest species richness, and dead wood and grasses feeders (II had the highest relative abundance. The most frequently occupied microhabitats were dead wood pieces lying on the ground. These results indicate that the Reserve harbors a diverse termite community similar to the ‘monte fuerte’ isopteran fauna (91.6% shared species. Our findings also support the Reserve´s value as a well–preserved fragment of the original gallery forest and emphasize the need to promote its conservation.

  15. TOUGH2. Model calculations of the circulation behavior around gallery closures in a saline final radioactive waste repository

    International Nuclear Information System (INIS)

    The project is aimed to the characterization of the circulation behavior around a gallery closure in a fictive final radioactive waste repository in salt deposits during the so called transition phase. The existence of saline solutions is postulated. The modeling is supposed to show the influence of the excavation-damaged zone on the barrier effect of the compound system gallery closure - rock salt, especially in the early phase after closure considering the saline solution flow in connection with the compaction of the excavation-damaged zone. The deterministic model calculations were performed using the numerical simulator TOUGH2. The sensitivity analyses for the saline solution flow include the variation of the parameters for the two-phase flow, the compaction and the permeability. A validation or calibration of the modeling is not possible with the actual data base.

  16. High-Q MgF$_2$ whispering gallery mode resonators for refractometric sensing in aqueous environment

    CERN Document Server

    Sedlmeir, Florian; Leuchs, Gerd; Schwefel, Harald G L

    2014-01-01

    We present our experiments on refractometric sensing with ultrahigh-Q, crystalline, birefringent magnesium fluoride (MgF$_2$) whispering gallery mode resonators. The difference to fused silica which is most commonly used for sensing experiments is the small refractive index of MgF$_2$ which is very close to that of water. Compared to fused silica this leads to more than 50% longer evanescent fields and a 4.25 times larger sensitivity. Moreover the birefringence amplifies the sensitivity difference between TM and TE type modes which will enhance sensing experiments based on difference frequency measurements. We estimate the performance of our resonators and compare them with fused silica theoretically and present experimental data showing the interferometrically measured evanescent decay and the sensitivity of mm-sized MgF$_2$ whispering gallery mode resonators immersed in water. They show reasonable agreement with the developed theory. Furthermore, we observe stable Q factors in water well above $1 \\times 10^...

  17. If Art Is Knowledge, Then . . . .

    Science.gov (United States)

    Chambers, John H.

    1979-01-01

    It is argued that, like scientific and moral statements, art statements shape the world we know. This thesis indicates the need for art encounters and developmental teaching techniques, since the knowledge of art statements can only be apprehended through engagement in art and from discussing art and its qualities. (Author/SJL)

  18. Life Gallery: event detection in a personal media collection. : An application, a basic algorithm and a benchmark

    OpenAIRE

    Pigeau, Antoine

    2016-01-01

    International audience Usage of camera-equipped mobile devices raises the need for automatically organizing large personal media collections. Event detection algorithms have been proposed in the literature to tackle this problem but a shortcoming of these studies resides in the lack of comparison of the different solutions. The goal of this work is then to provide a set of tools for the assessment of an event detection method. Our first contribution is our prototype Life Gallery, which aim...

  19. Whispering-gallery-mode phase matching for surface second-order nonlinear optical processes in spherical microresonators

    OpenAIRE

    Kozyreff, Gregory; Dominguez-Juarez, Jorge Luis; Martorell, Jordi

    2008-01-01

    The theory of surface-second-harmonic generation in a dielectric microsphere using whispering-gallery modes (WGMs) is developed. The second-order nonlinearity is restricted to the surface of the sphere. The coupling coefficients for a coupled-mode theory are derived and conditions for double resonance and phase matching are discussed for TE and TM polarizations. We demonstrate that phase matching of WGMs amounts to conservation of the angular momentum of the electromagnetic mode while at the ...

  20. Traces within traces : holes, pits and galleries in walls and filling of insect trace fossils in paleosols

    OpenAIRE

    Mikulás, R.; Genise, J.F.

    2003-01-01

    Fossil insect nests with constructed walls (ichnogenera Uruguay ROSELLI 1938, Palmiraichnus ROSELLI 1987, Rosellichnus GENISE and BOWN 1996), as well as fossil brood masses from dung beetles (Monesichnus ROSELLI 1987) often display pits or galleries made by inquilines, parasitoids, cleptoparasites and scavengers, which develop and/or feed inside them. Some of these “traces within traces” can be distinguished, using morphologic criteria, as separate ichnotaxa. Tombownichnus n. igen. is represe...

  1. Detection of Protein Orientation on the Silica Microsphere Surface Using Transverse Electric/Transverse Magnetic Whispering Gallery Modes

    OpenAIRE

    Noto, Mayumi; Keng, David; Teraoka, Iwao; Arnold, Stephen

    2007-01-01

    The state of adsorbed protein molecules can be examined by comparing the shifts in a narrow line resonance wavelength of transverse electric (TE) and transverse magnetic (TM) whispering gallery modes (WGM) when the molecules adsorb onto a transparent microsphere that houses WGM. In adsorption of bovine serum albumin (BSA) onto an aminopropyl-modified silica microsphere, the TM/TE shift ratio indicated highly anisotropic polarizability of BSA in the direction normal to the surface, most likely...

  2. CREATIVE COLLISIONS: ARTS @CERN

    CERN Document Server

    CERN. Geneva

    2012-01-01

    In 2000, CERN hosted Signatures of the Invisible – one of the landmark initiatives in arts and science. In 2012, CERN is now initiating its own science/arts programme Collide@CERN in different arts disciplines. The first of these is in digital arts, and the international competition to find the winning artist is called the Prix Ars Electronica Collide@CERN. It was announced September 2011 at CERN’s first collaboration with an international arts festival – Ars Electronica in Linz. The competition attracted over 395 entries from 40 countries around the world. The winning artist, Julius Von Bismarck, will begin his two month residency here at CERN next month. Ariane Koek who leads on this initiative, discusses the residency programme, as well as the background about Art@CERN. History has shown that particle physics and the arts are great inspiration partners. The publication of the paper by Max Planck which gave birth to quantum mechanics as well as those by Einstein, heavily influenced some of the grea...

  3. Neutrons and art

    International Nuclear Information System (INIS)

    Following modern trends in art objects connoisseurship, through examination of the structure of art objects supports traditional studies conducted by art historians based on composition, iconographic and stylistic comparisons. It must be emphasized that complete technological examinations are carried out by means of comprehensive physical and chemical studies. Among various methods used for the examination of art objects, methods which apply neutrons such as instrumental neutron activation analysis (INAA), prompt gamma activation analysis (PGAA) and neutron-induced autoradiography are crucial due to their high sensitivity, reproducibility and capability of simultaneous determination of several tens of elements. Systematic studies on art objects using instrumental neutron activation analysis and neutron autoradiography have been carried out in the institute of Nuclear Chemistry and Technology. It was possible to accumulate a number of essential data on the concentration of trace elements particularly in chalk grounds and pigments (such as lead white, lead-tin yellow, smalt), Chinese porcelain, Thai ceramics, silver denarius, jewellery made of copper alloys, as well as in the clay fillings of Egyptian mummies. The above mentioned examination of art objects prior to their conservation helps to determine precisely the materials used in the process of creating art objects, as well as to identify the appropriate place of origin of particular materials. (author)

  4. ART ADVENTURE OF PHOTOGRAPHY

    Directory of Open Access Journals (Sweden)

    Atilla ILKYAZ

    2014-11-01

    Full Text Available The question whether camera should be regarded as a technical device that only enables opportunity of duplicating images mechanically or an instrument that express artistic sensation of individual has strained the minds of artists, photographers, critics for years. The argument whether photograph is an art or not has enabled photograph a different dimension and has been discussed in details. In this essay, first of all short history of photograph was mentioned, then area of use of photograph in the field of art and views on photograph-art relation will be mentioned.

  5. Robots and Art

    DEFF Research Database (Denmark)

    Jochum, Elizabeth Ann; Putnam, Lance Jonathan

    2015-01-01

    We describe the design of an undergraduate course in art and robotics that aims to integrate basic concepts of computer science, robotics and art installation for undergraduate students within the problem-based learning model. Our methodology aims to bridge the gap that separates humanities from...... computer science and engineering education to prepare students to address real world problems in robotics, including human-robotic interaction and HCI. Given the proliferation of interactive, systems-based art works and the continued interest in human-centered factors in robotics research (such as...

  6. Digital Literary Arts Extravaganza

    OpenAIRE

    Pressman, Jessica; Marino, Mark C.

    2009-01-01

    To complement the panels of DAC and to emphasize the centrality of the Arts at this conference, we have organized the DAC Literary Arts Extravaganza, featuring exciting and dramatic works from the world of electronic literature. Conference guests were invited to see, hear, and engage in the performance of digital-born literary art works that embody the innovative ideas in this year’s panels and that will no doubt be the subject of panels in future DAC conferences. Genres include: live video s...

  7. Arts Teachers' Perceptions and Attitudes on Arts Integration While Participating in a Statewide Arts Integration Initiative

    Science.gov (United States)

    May, Brittany Nixon; Robinson, Nicole R.

    2016-01-01

    The purpose of this study was to examine the perceptions and attitudes of the Beverley Taylor Sorenson Arts Learning Program (BTSALP) arts specialists on arts integration. BTSALP arts specialists (N = 50) throughout the state of Utah responded to a 20-item survey. Results indicated that a majority of BTSALP arts specialists believe that arts…

  8. Genetics Home Reference: Arts syndrome

    Science.gov (United States)

    ... Me Understand Genetics Home Health Conditions Arts syndrome Arts syndrome Enable Javascript to view the expand/collapse boxes. Print All Open All Close All Description Arts syndrome is a disorder that causes serious neurological ...

  9. Arte e moda

    OpenAIRE

    Morais-Alexandre, Paulo

    1994-01-01

    Análise da moda no vestuário enquanto Arte, passível de análise estética respectivos critérios e ligação às artes plásticas. É ainda analisado, no âmbito desta problemática, a evolução do estatuto social do criador de Moda e a Moda na actualidade. ABSTRACT: The aim is the study of fashion in clothing as Art, the aesthetic criteria of its analysis and its connection with other arts. It is further analyzed, in the context of this problem, the evolution of status of fashions creators and Fas...

  10. Hvorfor Art Deco nu?

    DEFF Research Database (Denmark)

    Gether, Vibeke Petersen

    Udstillingen er udover Victoria & Albert Museum også inspireret af Designmuseum Danmarks udstilling i 1997-98 med titlen Dansk Design 1910-45. Art Déco & Funktionalisme. Selvom udstillingen viste fine eksempler på art deco i dansk design og arkitektur, er det dog først og fremmest funktionalismen......, der har trukket de store overskrifter op igennem det 20. århundrede herhjemme. Gl. Holtegaard efterprøver nu art deco-begrebet på dansk billedkunst i en udstillingskontekst. Fokus er først og fremmest på maleri og skulptur. Der inddrages i mindre målestok andre visuelle medier som arkitekturtegninger......, film, illustrationer, plakater og kunsthåndværk. Med udstillingen vil vi gerne synliggøre de forskellige æstetiske udtryk, som vi mener meget bedre dækkes af betegnelsen art deco i dansk kunst i perioden 1910–1940....

  11. Martial arts club

    CERN Multimedia

    Martial arts club

    2012-01-01

    In July 2012, after seven years of activity at CERN, the CERN Martial Arts held its first international Bujutsu seminar, gathering more than 30 participants from France, Switzerland, Germany, Sweden and Japan. The seminar was led by Master Shimazu Kenji, world-renowned martial arts expert based in Tokyo and headmaster of the Yagyu Shingan Ryu school, present in Europe specifically for the occasion. During seven days, participants got to discover the practice of Odachi (Large/Long Sword) and review the wide array of Bujutsu techniques and traditions of an ancestral martial art that finds its roots in the art and lives of Japanese samurais. Covering such varied subjects as self-defense techniques (Jujitsu), swordsmanship (Kenjutsu), through to stamina recovery techniques and etiquette, it encompasses all aspects of a way of life that still finds echoes in today's modern Japanese society. This year, three shodan grades (the lowest rank of black belts) have been awarded to students of the CERN Mart...

  12. Art-in-Design

    DEFF Research Database (Denmark)

    Degn Johansson, Troels

    distancing himself, by taking steps back from this situation, the author has sought to map out systematically the institutional contexts in which the art collective has been operating. In this way, it has become possible to understand further why art may maintain its original empowering role in design...... distinction between research in, for, and through art and design, the author lays out this collaboration as a series of stepping back from an initial action research situation, that is, a case of research through design where the researcher is involved by means of strategic interest. However, by gradually...... practice and how the art institutional contexts in turn may facilitate various critical approaches on behalf of the researching scholar....

  13. Assisted Reproductive Technology (ART)

    Science.gov (United States)

    ... Information Clinical Trials Resources and Publications Assisted Reproductive Technology (ART) Skip sharing on social media links Share ... American Society for Reproductive Medicine. (2012). Assisted reproductive technologies: A guide for patients . Retrieved June 11, 2012, ...

  14. Amplified spontaneous emission from a microtube cavity with whispering gallery modes

    Science.gov (United States)

    Rakovich, Y. P.; Balakrishnan, S.; Gun'ko, Y.; Perova, T. S.; Moore, A.; Donegan, J. F.

    2007-05-01

    We present a detailed study of the photonic modes in microtube cavity of ~ 7-8 μm outer diameter that can act as micron-scale optical cylindrical resonator. We demonstrate a new route to the fabrication of individual microtubes with the maximum length of 200 μm, using a vacuum assisted wetting and filtration through a microchannel glass matrix. The microtubes were studied using micro-photoluminescence spectroscopy and luminescence lifetime imaging confocal microscopy. In the emission spectra of the microresonators we find periodic very narrow peaks corresponding to the whispering gallery modes of two orthogonal polarizations with quality factors upto 3200 at room temperature. In order to identify the peaks in the observed mode structure, we have adopted the boundary-value solution to the problem of scattering of electromagnetic waves by a dielectric micro-cylinder. A strong enhancement in photoluminescence decay rates at high excitation power suggest the occurrence of amplified spontaneous emission from a single microtube. The evanescent field in these photonic structures extends a couple of micrometers into the surroundings providing the possibility for efficient coupling to an external photonic device.

  15. Integrating Nanostructured Artificial Receptors with Whispering Gallery Mode Optical Microresonators via Inorganic Molecular Imprinting Techniques

    Directory of Open Access Journals (Sweden)

    G. Denise Hammond

    2016-06-01

    Full Text Available The creation of label-free biosensors capable of accurately detecting trace contaminants, particularly small organic molecules, is of significant interest for applications in environmental monitoring. This is achieved by pairing a high-sensitivity signal transducer with a biorecognition element that imparts selectivity towards the compound of interest. However, many environmental pollutants do not have corresponding biorecognition elements. Fortunately, biomimetic chemistries, such as molecular imprinting, allow for the design of artificial receptors with very high selectivity for the target. Here, we perform a proof-of-concept study to show how artificial receptors may be created from inorganic silanes using the molecular imprinting technique and paired with high-sensitivity transducers without loss of device performance. Silica microsphere Whispering Gallery Mode optical microresonators are coated with a silica thin film templated by a small fluorescent dye, fluorescein isothiocyanate, which serves as our model target. Oxygen plasma degradation and solvent extraction of the template are compared. Extracted optical devices are interacted with the template molecule to confirm successful sorption of the template. Surface characterization is accomplished via fluorescence and optical microscopy, ellipsometry, optical profilometry, and contact angle measurements. The quality factors of the devices are measured to evaluate the impact of the coating on device sensitivity. The resulting devices show uniform surface coating with no microstructural damage with Q factors above 106. This is the first report demonstrating the integration of these devices with molecular imprinting techniques, and could lead to new routes to biosensor creation for environmental monitoring.

  16. Optimally Coherent Kerr Combs Generated with Crystalline Whispering Gallery Mode Resonators for Ultrahigh Capacity Fiber Communications

    Science.gov (United States)

    Pfeifle, Joerg; Coillet, Aurélien; Henriet, Rémi; Saleh, Khaldoun; Schindler, Philipp; Weimann, Claudius; Freude, Wolfgang; Balakireva, Irina V.; Larger, Laurent; Koos, Christian; Chembo, Yanne K.

    2015-03-01

    Optical Kerr frequency combs are known to be effective coherent multiwavelength sources for ultrahigh capacity fiber communications. These combs are the frequency-domain counterparts of a wide variety of spatiotemporal dissipative structures, such as cavity solitons, chaos, or Turing patterns (rolls). In this Letter, we demonstrate that Turing patterns, which correspond to the so-called primary combs in the spectral domain, are optimally coherent in the sense that for the same pump power they provide the most robust carriers for coherent data transmission in fiber communications using advanced modulation formats. Our model is based on a stochastic Lugiato-Lefever equation which accounts for laser pump frequency jitter and amplified spontaneous emission noise induced by the erbium-doped fiber amplifier. Using crystalline whispering-gallery-mode resonators with quality factor Q ˜109 for the comb generation, we show that when the noise is accounted for, the coherence of a primary comb is significantly higher than the coherence of their solitonic or chaotic counterparts for the same pump power. In order to confirm this theoretical finding, we perform an optical fiber transmission experiment using advanced modulation formats, and we show that the coherence of the primary comb is high enough to enable data transmission of up to 144 Gbit /s per comb line, the highest value achieved with a Kerr comb so far. This performance evidences that compact crystalline photonic systems have the potential to play a key role in a new generation of coherent fiber communication networks, alongside fully integrated systems.

  17. Integrating Nanostructured Artificial Receptors with Whispering Gallery Mode Optical Microresonators via Inorganic Molecular Imprinting Techniques.

    Science.gov (United States)

    Hammond, G Denise; Vojta, Adam L; Grant, Sheila A; Hunt, Heather K

    2016-01-01

    The creation of label-free biosensors capable of accurately detecting trace contaminants, particularly small organic molecules, is of significant interest for applications in environmental monitoring. This is achieved by pairing a high-sensitivity signal transducer with a biorecognition element that imparts selectivity towards the compound of interest. However, many environmental pollutants do not have corresponding biorecognition elements. Fortunately, biomimetic chemistries, such as molecular imprinting, allow for the design of artificial receptors with very high selectivity for the target. Here, we perform a proof-of-concept study to show how artificial receptors may be created from inorganic silanes using the molecular imprinting technique and paired with high-sensitivity transducers without loss of device performance. Silica microsphere Whispering Gallery Mode optical microresonators are coated with a silica thin film templated by a small fluorescent dye, fluorescein isothiocyanate, which serves as our model target. Oxygen plasma degradation and solvent extraction of the template are compared. Extracted optical devices are interacted with the template molecule to confirm successful sorption of the template. Surface characterization is accomplished via fluorescence and optical microscopy, ellipsometry, optical profilometry, and contact angle measurements. The quality factors of the devices are measured to evaluate the impact of the coating on device sensitivity. The resulting devices show uniform surface coating with no microstructural damage with Q factors above 10⁶. This is the first report demonstrating the integration of these devices with molecular imprinting techniques, and could lead to new routes to biosensor creation for environmental monitoring. PMID:27314397

  18. Whispering gallery mode lasing from hexagonal shaped layered lead iodide crystals.

    Science.gov (United States)

    Liu, Xinfeng; Ha, Son Tung; Zhang, Qing; de la Mata, Maria; Magen, César; Arbiol, Jordi; Sum, Tze Chien; Xiong, Qihua

    2015-01-27

    We report on the synthesis and optical gain properties of regularly shaped lead iodide (PbI2) platelets with thickness ranging from 10-500 nm synthesized by chemical vapor deposition methods. The as-prepared single crystalline platelets exhibit a near band edge emission of ∼ 500 nm. Whispering gallery mode (WGM) lasing from individual hexagonal shaped PbI2 platelets is demonstrated in the temperature-range of 77-210 K, where the lasing modes are supported by platelets as thin as 45 nm. The finite-difference time-domain simulation and the edge-length dependent threshold confirm the planar WGM lasing mechanism in such hexagonal shaped PbI2 platelet. Through a comprehensive study of power-dependent photoluminescence (PL) and time-resolved PL spectroscopy, we ascribe the WGM lasing to be biexcitonic in nature. Moreover, for different thicknesses of platelet, the lowest lasing threshold occurs in platelets of ∼ 120 nm, which attributes to the formation of a good Fabry-Pérot resonance cavity in the vertical direction between the top and bottom platelet surfaces that enhances the reflection. Our present study demonstrates the feasibility of planar light sources based on layered semiconductor materials and that their thickness-dependent threshold characteristic is beneficial for the optimization of layered material based optoelectronic devices. PMID:25562110

  19. Macroscopic Center-of-mass Cooling using Whispering Gallery Mode Resonances

    CERN Document Server

    Li, Ying Lia; Barker, P F

    2015-01-01

    We demonstrate simultaneous center-of-mass cooling of two coupled oscillators, consisting of a microsphere-cantilever and a tapered optical fiber. Excitation of a whispering gallery mode (WGM) of the microsphere, via the evanescent field of the taper, provides a transduction signal that continuously monitors the relative motion between these two microgram objects with a sensitivity of 3\\,pm. The cavity enhanced optical dipole force is used to provide feedback damping on the motion of the micron-diameter taper, whereas a piezo stack is used to damp the motion of the much larger (up to $ 180\\,\\mu$m in diameter), heavier (up to $1.5\\times 10^{-7}\\,$kg) and stiffer microsphere-cantilever. In each feedback scheme multiple mechanical modes of each oscillator can be cooled, and mode temperatures below 10\\,K are reached for the dominant mode, consistent with limits determined by the measurement noise of our system. This indicates stabilization on the $10^{-12}$ m level and is the first demonstration of using WGM reso...

  20. GENETIC AND SPATIAL STRUCTURE OF NATURAL POPULATIONS OF Calophyllum brasiliense Camb. IN GALLERY FOREST

    Directory of Open Access Journals (Sweden)

    Anderson Marcos de Souza

    2007-09-01

    Full Text Available Calophyllum brasiliense Camb. (Clusiaceae is a tree of great ecological plasticity and it is present in different forestphysiognomy. Due to its preference to water-saturated soils, it is considered specialist in habitat, due to this, it occurs frequently inthe riparian forest. In order to access and understand the inter and intrapopulation genetic variability patterns, two populations of C.brasiliense in gallery forest were sampled. The results obtained by isoenzyme electrophoresis analysis showed a high heterozygosityfor this species, equal 0.444 and 0.492. The genetic structure analysis indicated the absence of intra and inter populationsinbreeding ( f = -0.078; F = -0.063. Most of the genetic variability was distributed within the populations ( = 0.14 and the geneflow was low ( m N= 0.83. The coancestry coefficient estimated showed positive spatial structure in small distance classes. Thisinformation is important to programs of conservation genetics in situ and ex situ of the species. Moreover, it is necessary to improvethe preservation and the maintenance of natural populations of C. brasiliense, since this species demonstrates fragility to factors thatput at risk its genetic variability. op

  1. Femtosecond laser 3D fabrication of whispering-gallery- mode microcavities

    Institute of Scientific and Technical Information of China (English)

    XU HuaiLiang; SUN HongBo

    2015-01-01

    Whispering-gallery-mode (WGM) microcavities with high-quality factors and small volumes have attracted intense interests in the past decades because of their potential applications in various research fields such as quantum information, sensing, and optoelectronics. This leads to rapid advance in a variety of processing technologies that can create high-quality WGM mi- cro-cavities. Due to the unique characteristics of femtosecond laser pulses with high peak intensity and ultrashort pulse dura- tion, femtosecond laser shows the ability to carry out ultrahigh precision micromachining of a variety of transparent materials through nonlinear multiphoton absorption and tunneling ionization. This review paper describes the basic principle of femto- second laser direct writing, and presents an overview of recent progress concerning femtosecond laser three-dimensional (3D) fabrications of optical WGM microcavities, which include the advances in the fabrications of passive and active WGMs mi- crocavities in a variety of materials such as polymer, glass and crystals, as well as in processing the integrated WGM-micro- cavity device. Lastly, a summary of this dynamic field with a future perspective is given.

  2. Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators.

    Science.gov (United States)

    Farnesi, Daniele; Berneschi, Simone; Cosi, Franco; Righini, Giancarlo C; Soria, Silvia; Nunzi Conti, Gualtiero

    2016-01-01

    Dielectric microspheres can confine light and sound for a length of time through high quality factor whispering gallery modes (WGM). Glass microspheres can be thought as a store of energy with a huge variety of applications: compact laser sources, highly sensitive biochemical sensors and nonlinear phenomena. A protocol for the fabrication of both the microspheres and coupling system is given. The couplers described here are tapered fibers. Efficient generation of nonlinear phenomena related to third order optical non-linear susceptibility Χ((3)) interactions in triply resonant silica microspheres is presented in this paper. The interactions here reported are: Stimulated Raman Scattering (SRS), and four wave mixing processes comprising Stimulated Anti-stokes Raman Scattering (SARS). A proof of the cavity-enhanced phenomenon is given by the lack of correlation among the pump, signal and idler: a resonant mode has to exist in order to obtain the pair of signal and idler. In the case of hyperparametric oscillations (four wave mixing and stimulated anti-stokes Raman scattering), the modes must fulfill the energy and momentum conservation and, last but not least, have a good spatial overlap. PMID:27078752

  3. Method for predicting whispering gallery mode spectra of active spherical microresonators

    CERN Document Server

    Hall, Jonathan M M; Henderson, Matthew R; Francois, Alexandre; Reynolds, Tess; Riesen, Nicolas; Monro, Tanya M

    2014-01-01

    A full three-dimensional Finite-Difference Time-Domain (FDTD)-based toolkit is developed to simulate the whispering gallery modes of a microsphere in the vicinity of a dipole source, placed on the surface. This provides a guide for experiments that rely on coupling to active microspheres. The resultant spectra are compared to those of analytic models used in the field. In contrast to the analytic models, the FDTD method is able to collect flux from an arbitrary collection region, such as a disk-shaped region, analogous to an optical fibre. The flux collection time may also be altered to access transient phenomena that may not appear at long collection times. The customisability of the technique allows one to consider a variety of mode excitation scenarios, such as refractive index inhomogeneity in the material, and different resonator shapes, such as shells and ellipsoids. The coupling efficiency to specific modes within wavelength regions can thus be optimized, preselecting the desired optical properties pri...

  4. Femtosecond laser 3D fabrication of whispering-gallery-mode microcavities

    Science.gov (United States)

    Xu, HuaiLiang; Sun, HongBo

    2015-11-01

    Whispering-gallery-mode (WGM) microcavities with high-quality factors and small volumes have attracted intense interests in the past decades because of their potential applications in various research fields such as quantum information, sensing, and optoelectronics. This leads to rapid advance in a variety of processing technologies that can create high-quality WGM micro- cavities. Due to the unique characteristics of femtosecond laser pulses with high peak intensity and ultrashort pulse duration, femtosecond laser shows the ability to carry out ultrahigh precision micromachining of a variety of transparent materials through nonlinear multiphoton absorption and tunneling ionization. This review paper describes the basic principle of femtosecond laser direct writing, and presents an overview of recent progress concerning femtosecond laser three-dimensional (3D) fabrications of optical WGM microcavities, which include the advances in the fabrications of passive and active WGMs microcavities in a variety of materials such as polymer, glass and crystals, as well as in processing the integrated WGM-microcavity device. Lastly, a summary of this dynamic field with a future perspective is given.

  5. What is and what is not electromagnetically induced transparency in whispering-gallery microcavities.

    Science.gov (United States)

    Peng, Bo; Özdemir, Sahin Kaya; Chen, Weijian; Nori, Franco; Yang, Lan

    2014-01-01

    There has been an increasing interest in all-optical analogues of electromagnetically induced transparency and Autler-Townes splitting. Despite the differences in their underlying physics, both electromagnetically induced transparency and Autler-Townes splitting are quantified by a transparency window in the absorption or transmission spectrum, which often leads to a confusion about its origin. While the transparency window in electromagnetically induced transparency is a result of Fano interference among different transition pathways, in Autler-Townes splitting it is the result of strong field-driven interactions leading to the splitting of energy levels. Being able to tell objectively whether an observed transparency window is because of electromagnetically induced transparency or Autler-Townes splitting is crucial for applications and for clarifying the physics involved. Here we demonstrate the pathways leading to electromagnetically induced transparency, Fano resonances and Autler-Townes splitting in coupled whispering-gallery-mode resonators. Moreover, we report the application of the Akaike Information Criterion discerning between all-optical analogues of electromagnetically induced transparency and Autler-Townes splitting and clarifying the transition between them. PMID:25342088

  6. Simultaneous cooling of coupled mechanical oscillators using whispering gallery mode resonances.

    Science.gov (United States)

    Li, Ying Lia; Millen, James; Barker, P F

    2016-01-25

    We demonstrate simultaneous center-of-mass cooling of two coupled oscillators, consisting of a microsphere-cantilever and a tapered optical fiber. Excitation of a whispering gallery mode (WGM) of the microsphere, via the evanescent field of the taper, provides a transduction signal that continuously monitors the relative motion between these two microgram objects with a sensitivity of 3 pm. The cavity enhanced optical dipole force is used to provide feedback damping on the motion of the micron-diameter taper, whereas a piezo stack is used to damp the motion of the much larger (up to 180 μm in diameter), heavier (up to 1.5 × 10(-7) kg) and stiffer microsphere-cantilever. In each feedback scheme multiple mechanical modes of each oscillator can be cooled, and mode temperatures below 10 K are reached for the dominant mode, consistent with limits determined by the measurement noise of our system. This represents stabilization on the picometer level and is the first demonstration of using WGM resonances to cool the mechanical modes of both the WGM resonator and its coupling waveguide. PMID:26832520

  7. Art painting Data Collection

    OpenAIRE

    Martinez Saez, Jodi

    2011-01-01

    The classification of Art painting images is a computer vision applications that is growing considerably. The goal of this technology, is to classify an art painting image automatically, in terms of artistic style, technique used, or its author. For this purpose, the image is analyzed extracting some visual features. Many articles related with these problems have been issued, but in general the proposed solutions are focused in a very specific field. In particular, algorithms a...

  8. The Puritan Art World

    OpenAIRE

    LaFountain, Jason David

    2013-01-01

    In this dissertation, I argue that the iconoclastic and anti-materialistic "art of living to God" is the central theoretical preoccupation of English and American Puritan intellectuals. I call attention to a wealth of previously unacknowledged writing about image, art, architecture, and form in Puritan literature, while highlighting how recent materialist analyses of Puritan culture have effectively obscured evidence of iconoclasm and anti-materialism in this milieu. In the first chapter, I e...

  9. Cerebro arte y creatividad

    OpenAIRE

    Brainsky, Simón; Guzmán Cervantes, Eugenia; Matallana, Diana; Montaña, Clemencia; Montañés, Patricia; Morales, Hernando de; Moreno Cardozo, Belén del Rocío; Morillo, Anibal; Pardo, Rodrigo; Rojas, Alejandro; Ruiz, Edwin

    2001-01-01

    En el seminario Cerebro, Arte y Creatividad, realizado en mayo del 2000, en la Universidad Nacional, cuyas conferencias hemos integrado en este libro, hemos querido aproximamos a diversas manifestaciones del arte, diversas variedades de creatividad, desde la perspectiva de las funciones cerebrales y desde la perspectiva de los principios psicológicos que gobiernan la actividad creativa. Se explora cómo los hallazgos relativos al funcionamiento y especialización funcional de los hemisferi...

  10. The art of consultation

    Directory of Open Access Journals (Sweden)

    Kulwant S Bhangoo

    2014-01-01

    Full Text Available Sophisticated marketing and practice-enhancing strategies can help bring patients to a surgeon′s practice. However, the ability to retain these patients and also convert the consultations into surgical procedures depends on the art of consultation. This very important aspect of clinical practice is seldom taught in the medical school. In this paper, the author discusses many aspects of the art of consultation, which he has learned in his practice over the years.

  11. The uses of art

    DEFF Research Database (Denmark)

    Eriksson, Birgit

    2011-01-01

    In recent years aesthetics and cosmopolitanism has been linked in new ways. On the one hand contemporary research in sociology of art appears to indicate an increasing openness and a potential cosmopolitanism in aesthetic taste and consumption. On the other hand aesthetic concepts and ideals play...... social implications of the apparent new openness. Does it indicate an increasing tolerance and commonality? Or does it rather point towards a new and more individualized understanding of the social function and legitimacy of art?...

  12. THE ART OF ALMODOVAR

    Directory of Open Access Journals (Sweden)

    Ana Costa

    2007-12-01

    Full Text Available This paper works with the art of the film director Pedro Almodóvar, using the concepts of feminine and Baroque. The concept of feminine is in the duplication of hysteria in different films, as well as its relation with distinct joys. The relation with joy makes an approach to the Baroque art, as a possible expression to the enjoyment body.

  13. The art of reconstruction

    OpenAIRE

    Healey, Michael; Esson, Michael

    2011-01-01

    The ‘Art of Reconstruction Research Project’ is where re-skilling of plastic surgeons by artists is already in an embryonic phase. In integrating the required network of associated skills, expertise and experience, the research collaboration brings together artists within The Drawing Research Group of The Faculty of Art, Architecture and Design (AAD) and the distinguished work of Professor Mike Esson, Director, The International Drawing Research Institute (IDRI). Th...

  14. The Experimental Art School

    DEFF Research Database (Denmark)

    Ørum, Tania

    2014-01-01

    The article describes the Experimental Art School from its early beginnings, its development from formal experiments to political action, the question of gender and politics, and the power of the self-organised......The article describes the Experimental Art School from its early beginnings, its development from formal experiments to political action, the question of gender and politics, and the power of the self-organised...

  15. Feasibility of Gallery Intake Systems for Seawater Reverse Osmosis Facilities along the Northern Red Sea Coast of Saudi Arabia

    KAUST Repository

    Dehwah, Abdullah

    2012-03-01

    The Kingdom of Saudi Arabia is dependent on desalination of seawater to provide new water supplies for the future. Desalination is expensive and it is very important to reduce the cost and lower the energy consumption. Most seawater reverse osmosis facilities use open-ocean intakes, which require extensive pre-treatment processes to remove particulate and biological materials that cause operating problems. An alternative intake is the subsurface system which utilizes the concept of riverbank filtration using wells or galleries and provides natural filtration to improve the quality of feedwater before it enters the desalination plant. This reduces operating cost and lowers energy consumption. Research was focused on evaluating gallery-type intakes (beach and seabed galleries) that could be used along the Northern Red Sea shoreline to provide a better quality feedwater for desalination. The geological characteristics of the visited sites were favorable for the development of seabed filter systems (offshore), but not for beach gallery intakes. The low wave energy along the shoreline and the presence of mud or rocky coasts made beach galleries infeasible. One of the potentially favorable sites for a seabed filter was located in the nearshore area at King Abdullah Economic City (KAEC). This site has a predominantly sandy offshore bottom with shallow water depths, and a low tide range. In addition, the bottom is always covered with water and contains soft limestone unit below the sand mantle that could be easy excavated to facilitate the construction of a seabed filter. About 50 sediment samples were collected from the site and laboratory measurements were performed on them. Grain size distribution, porosity and hydraulic conductivity measurements were performed on the sediment samples. In addition, six statistical methods were used to estimate the hydraulic conductivity values. Based on results of lab measurements, field observations, tide ranges and sediment types, it

  16. Aboriginal Art: Who was interested?

    Directory of Open Access Journals (Sweden)

    Daniel Thomas

    2011-06-01

    Full Text Available This paper addresses the common assumption that Aboriginal art has been absent from Australian art histories and demonstrates how this is not so. It criticises the notion that art history should be represented by specialised art-history books and argues for the important of art museum displays as texts. It also examines the ways in which Aboriginal art has been examined in literature devoted to Australian history and anthropology. It foregrounds the idea that arts history is not necessarily best represented by official art historical texts.

  17. The art framework

    Science.gov (United States)

    Green, C.; Kowalkowski, J.; Paterno, M.; Fischler, M.; Garren, L.; Lu, Q.

    2012-12-01

    Future “Intensity Frontier” experiments at Fermilab are likely to be conducted by smaller collaborations, with fewer scientists, than is the case for recent “Energy Frontier” experiments. art is a C++ event-processing framework designed with the needs of such experiments in mind. An evolution from the framework of the CMS experiment, art was designed and implemented to be usable by multiple experiments without imposing undue maintenance effort requirements on either the art developers or experiments using it. We describe the key requirements and features of art and the rationale behind evolutionary changes, additions and simplifications with respect to the CMS framework. In addition, our package distribution system and our collaborative model with respect to the multiple experiments using art helps keep the maintenance burden low. We also describe in-progress and future enhancements to the framework, including strategies we are using to allow multi-threaded use of the art framework in today's multi- and many-core environments.

  18. Impact of the ‘Artful Moments’ Intervention on Persons with Dementia and Their Care Partners: a Pilot Study

    Science.gov (United States)

    Hazzan, Afeez Abiola; Humphrey, Janis; Kilgour-Walsh, Laurie; Moros, Katherine L.; Murray, Carmen; Stanners, Shannon; Montemuro, Maureen; Giangregorio, Aidan; Papaioannou, Alexandra

    2016-01-01

    Background Engaging with art can be valuable for persons living with dementia. ‘Artful Moments’ was a collaborative project undertaken by the Art Gallery of Hamilton and the Behavioural Health Program at Hamilton Health Sciences that sought to develop and implement a program of arts-based activities for persons in the middle-to-late stages of dementia who exhibit behavioural symptoms and for their accompanying care partners. Methods This pilot study employed a qualitative descriptive design. Eight participants were observed during multiple art sessions to evaluate their level of engagement in the program. Care partners also completed a questionnaire describing their experience. Qualitative content analysis was used to identify themes. Results For program participants, factors that promoted continued interest and engagement in art included: care partner involvement, group activities, opportunities to share opinions, validation of their personhood, and increased engagement over time. Care partners observed improvements in participants’ creativity, communication, relationship forming, and task accomplishment, and some reported reduced stress. Conclusions ‘Artful Moments’ promoted engagement and expression in persons in the middle-to-late stages of dementia, as well as having benefits for their care partners. Limitations of the study included a small convenience sample drawn from one hospital setting. PMID:27403209

  19. The role of gallery forests in the distribution of cerrado mammals O papel das matas de galeria na distribuição dos mamíferos do cerrado

    OpenAIRE

    M. A. Johnson; Saraiva, P.M.; Coelho, D

    1999-01-01

    The Cerrado biome contains a rich mammal community, with an influence from the Amazonian and Atlantic rainforests, principally observed in the gallery forests. In this paper, through literature review, it is shown that the non-volant mammal community of the gallery forests is distinct from the mammal communities of any other physionomy of the Cerrado. Additionally, the gallery forests contain twice as many species common to the rainforests when compared to all the other physiognomies of the C...

  20. State Arts Agency Fact Sheet: Support for Arts Education

    Science.gov (United States)

    Online Submission, 2015

    2015-01-01

    This national overview of state arts agency grants and services for arts education includes summary statistics and geographic distribution. The fact sheet uses data from Final Descriptive Reports of state arts agency grant-making activities submitted annually to the National Assembly of State Arts Agencies (NASAA) and the National Endowment for…

  1. Technical feasibility of using gallery intakes for seawater RO facilities, northern Red Sea coast of Saudi Arabia: The King Abdullah Economic City site

    KAUST Repository

    Dehwah, Abdullah

    2013-02-13

    The Kingdom of Saudi Arabia is dependent on desalination of seawater to provide new water supplies for the future. Desalination is expensive and it is very important to reduce the cost and lower the energy consumption. Most seawater reverse osmosis facilities use open-ocean intakes, which require extensive pretreatment processes to remove particulate and biological materials that cause operating problems such as membrane fouling or shutdown during algal blooms. Subsurface systems, using the concept of riverbank filtration, can be used as intakes. These systems include wells of various designs and galleries that provide natural filtration and biological treatment to improve the quality of feed water before it enters the desalination plant. This reduces operating cost, lowers chemical and energy consumption, and reduces environmental impacts. Technical feasibility of gallery-type intakes, beach and seabed types, for use as intakes to seawater reverse osmosis (RO) facilities was evaluated along the northern Red Sea shoreline of Saudi Arabia. The geological characteristics of the offshore ocean bottom were found to be favorable for the development of seabed gallery systems, but the shoreline geology was not adequate for the development of beach gallery intakes. One of the potentially favorable sites for a seabed gallery system was located in the nearshore area at King Abdullah Economic City (KAEC). Detailed investigation of the site hydrology (tides and wave action), sediment grain size characteristics, and sediment hydraulic conductivity, and access for construction were assessed. It was determined that seabed gallery development is favorable at the site. Based on the seawater that has a salinity of about 41,000 mg/L and a conversion rate of 40%, a conservatively designed gallery cell with dimensions of 100 by 50 m would produce about 25,000 m3/day of filtered seawater and seven cells (6 primary and 1 standby) could support a 60,000 m3/day (permeate) seawater RO plant

  2. The Artful Universe Expanded

    Science.gov (United States)

    Barrow, John D.

    2005-07-01

    Our love of art, writes John Barrow, is the end product of millions of years of evolution. How we react to a beautiful painting or symphony draws upon instincts laid down long before humans existed. Now, in this enhanced edition of the highly popular The Artful Universe , Barrow further explores the close ties between our aesthetic appreciation and the basic nature of the Universe. Barrow argues that the laws of the Universe have imprinted themselves upon our thoughts and actions in subtle and unexpected ways. Why do we like certain types of art or music? What games and puzzles do we find challenging? Why do so many myths and legends have common elements? In this eclectic and entertaining survey, Barrow answers these questions and more as he explains how the landscape of the Universe has influenced the development of philosophy and mythology, and how millions of years of evolutionary history have fashioned our attraction to certain patterns of sound and color. Barrow casts the story of human creativity and thought in a fascinating light, considering such diverse topics as our instinct for language, the origins and uses of color in nature, why we divide time into intervals as we do, the sources of our appreciation of landscape painting, and whether computer-generated fractal art is really art. Drawing on a wide variety of examples, from the theological questions raised by St. Augustine and C.S. Lewis to the relationship between the pure math of Pythagoras and the music of the Beatles, The Artful Universe Expanded covers new ground and enters a wide-ranging debate about the meaning and significance of the links between art and science.

  3. Contemporary Art and Citizenship Education: The Possibilities of Cross-Curricular Links on the Level of Content

    Directory of Open Access Journals (Sweden)

    Metoda Kemperl

    2013-01-01

    Full Text Available Unlike the previous phenomenon of modern art, contemporary art strives to return to society and everyday life, while thematising the current issues that the individual faces here and now. One of its more frequent topics is that of sustainable development, and the accompanying issues of environment, values, relations to others, etc. All such topics are part of the concept of active citizenship, which is why understanding contemporary art calls for active citizenship. This particularly holds true for relational art, which demands active participation on the part of the viewer. This paper inquires into the possibilities of the connection of contemporary art and citizenship education in elementary schools. Contemporary pedagogic doctrine highly encourages cross-curricular teaching; therefore, I have focused my analysis on the curricula of the subjects of Art Education, and Citizenship and Patriotic Education and Ethics, determining that (from this perspective their link is quite troublesome. The absence of contemporary art from the curriculum of Art Education has been criticised on many occasions, but the problem of its curriculum seems to be of a conceptual nature. Only by a more intense inter-institutional link between schools and contemporary art galleries and museums can the common goals of art education and citizenship education be realised. This paper will, therefore, strive to show potential cross curricular links in content on three examples of participatory practices (Proletarians of All Countries, Beggar Robot and EU/Others, while warning (from the pedagogic perspective against the often neglected fact that contemporary art is experienced here and now.

  4. Crush-2: Communicating research through a science-art collaboration

    Science.gov (United States)

    Mair, K.; Barrett, N.; Schubnel, A. J.; Abe, S.

    2011-12-01

    Historically, the Earth's environment and dynamics have influenced and inspired the arts. Art in turn is a powerful vehicle for expression of the natural world. It lends itself to public presentation in many forms and appeals to a diverse audience. Science-art collaborations provide a unique opportunity to connect with the public by taking science out of the classroom and into museums, galleries and public spaces. Here we investigate the use of contemporary digital sound-art in communicating geoscience research to the general public through the installation Crush-2. Crush-2, is an interactive sound-art installation exploring the microscopic forces released during the crushing of rock. Such processes have a strong influence on the sliding behaviour and hence earthquake potential of active faults. This work is a collaboration between sound artist and composer Natasha Barrett (Oslo) and geoscientists Karen Mair (University of Oslo), Alexandre Schubnel (Ecole Normale Superieure, Paris) and Steffen Abe (RWTH Aachen). Using a sonification technique, Barrett has assigned sound recorded from rocks, of different pitches, timbres and durations, to individual fracturing events produced in our 3D fault fragmentation models and laboratory rock breaking experiments. In addition, ultrasonic acoustic emissions recorded directly in the laboratory are made audible for our hearing and feature in the work. The installation space comprises a loudspeaker array and sensor enabled helmet with wireless headphones. By wearing the helmet, moving and listening, the audience explores an artistic interpretation of the scientific data in physical space. On entering the space, one is immediately immersed in a 3D cacophony of sound. Sustained or intermittent pings, burrs, plops and tingles jostle for position in our heads whilst high pitched delicate cascades juxtapose with deep thunder like rumbles. Depending on the user's precise path through the soundscape, the experience changes accordingly

  5. Graffiti, Street Art, Urban Art: Terminological Problems and Generic Properties

    OpenAIRE

    Radosevic, Lliljana

    2013-01-01

    In the last ten years, street art has become a very important factor in the international art scene. It has become a precious object to buy and preserve, and yet there is considerable confusion about the generic properties and definition of street art in academic research. As a rightful part of popular culture and urban culture, street art is not pure and independent. It intertwines with different art forms and urban subcultures and nurtures spin-off production. Therefore it is...

  6. 2008 Arts Education Assessment Framework

    Science.gov (United States)

    National Assessment Governing Board, 2008

    2008-01-01

    The National Assessment of Educational Progress (NAEP) for the arts measures students' knowledge and skills in creating, performing, and responding to works of music, theatre, and visual arts. This framework document asserts that dance, music, theatre and the visual arts are important parts of a full education. When students engage in the arts,…

  7. Whispering-gallery acoustic sensing: Characterization of mesoscopic films and scanning probe microscopy applications

    Science.gov (United States)

    La Rosa, Andres H.; Li, Nan; Fernandez, Rodolfo; Wang, Xiaohua; Nordstrom, Richard; Padigi, S. K.

    2011-09-01

    Full understanding of the physics underlying the striking changes in viscoelasticity, relaxation time, and phase transitions that mesoscopic fluid-like films undergo at solid-liquid interfaces, or under confinement between two sliding solid boundaries, constitutes one of the major challenges in condensed matter physics. Their role in the imaging process of solid substrates by scanning probe microscopy (SPM) is also currently controversial. Aiming at improving the reliability and versatility of instrumentation dedicated to characterize mesoscopic films, a noninvasive whispering-gallery acoustic sensing (WGAS) technique is introduced; its application as feedback control in SPM is also demonstrated. To illustrate its working principle and potential merits, WGAS has been integrated into a SPM that uses a sharp tip attached to an electrically driven 32-kHz piezoelectric tuning fork (TF), the latter also tighten to the operating microscope's frame. Such TF-based SPMs typically monitor the TF's state of motion by electrical means, hence subjected to the effects caused by the inherent capacitance of the device (i.e., electrical resonance differing from the probe's mechanical resonance). Instead, the novelty of WGAS resides in exploiting the already existent microscope's frame as an acoustic cavity (its few centimeter-sized perimeter closely matching the operating acoustic wavelength) where standing-waves (generated by the nanometer-sized oscillations of the TF's tines) are sensitively detected by an acoustic transducer (the latter judiciously placed around the microscope's frame perimeter for attaining maximum detection). This way, WGAS is able to remote monitoring, via acoustic means, the nanometer-sized amplitude motion of the TF's tines. (This remote-detection method resembles the ability to hear faint, but still clear, levels of sound at the galleries of a cathedral, despite the extraordinary distance location of the sound source.) In applications aiming at

  8. Whispering-gallery acoustic sensing: characterization of mesoscopic films and scanning probe microscopy applications.

    Science.gov (United States)

    La Rosa, Andres H; Li, Nan; Fernandez, Rodolfo; Wang, Xiaohua; Nordstrom, Richard; Padigi, S K

    2011-09-01

    Full understanding of the physics underlying the striking changes in viscoelasticity, relaxation time, and phase transitions that mesoscopic fluid-like films undergo at solid-liquid interfaces, or under confinement between two sliding solid boundaries, constitutes one of the major challenges in condensed matter physics. Their role in the imaging process of solid substrates by scanning probe microscopy (SPM) is also currently controversial. Aiming at improving the reliability and versatility of instrumentation dedicated to characterize mesoscopic films, a noninvasive whispering-gallery acoustic sensing (WGAS) technique is introduced; its application as feedback control in SPM is also demonstrated. To illustrate its working principle and potential merits, WGAS has been integrated into a SPM that uses a sharp tip attached to an electrically driven 32-kHz piezoelectric tuning fork (TF), the latter also tighten to the operating microscope's frame. Such TF-based SPMs typically monitor the TF's state of motion by electrical means, hence subjected to the effects caused by the inherent capacitance of the device (i.e., electrical resonance differing from the probe's mechanical resonance). Instead, the novelty of WGAS resides in exploiting the already existent microscope's frame as an acoustic cavity (its few centimeter-sized perimeter closely matching the operating acoustic wavelength) where standing-waves (generated by the nanometer-sized oscillations of the TF's tines) are sensitively detected by an acoustic transducer (the latter judiciously placed around the microscope's frame perimeter for attaining maximum detection). This way, WGAS is able to remote monitoring, via acoustic means, the nanometer-sized amplitude motion of the TF's tines. (This remote-detection method resembles the ability to hear faint, but still clear, levels of sound at the galleries of a cathedral, despite the extraordinary distance location of the sound source.) In applications aiming at

  9. Creativity and folk art

    DEFF Research Database (Denmark)

    Glaveanu, Vlad Petre

    2013-01-01

    This article explores creativity in craftwork using the case of Easter egg decoration, a folk art chosen for its traditional roots and diversity of artistic outcomes. This research contributes to the literature at (a) a theoretical level, by conceptualizing a pragmatist-inspired framework of...... creative activity; (b) a methodological level, by using, beside observation and interview, subjective cameras to record activity; and (c) an empirical level, considering the fact that creativity in folk art has often been a neglected topic. A total of 20 egg decorators of various ages from the village of...... style, and creative identity. In the end, an understanding of “micro” moments of creativity in craft is achieved, which can help us rethink the relation between tradition and creativity and between folk and fine art....

  10. Is art a

    Directory of Open Access Journals (Sweden)

    Fabienne Crettaz von Roten

    2007-09-01

    Full Text Available This paper relates to a special case of science-society mediation set up during the Science et Cité festival 2005. This national event took place in about twenty cities in Switzerland to promote a closer cooperation between science and society via art (theatre, music, dance, exhibitions, cinema, etc., in order to reach the population at large. Results on the profile of the public, the role played by the cultural institutions involved, the motives of the visitors and the role of art in the science-society dialogue show that the goals aimed at by the festival's organisers were only partially reached. Moreover, the analyses shed light on the complex relation between art, science and society in public understanding of science activities.

  11. Martial arts club

    CERN Multimedia

    Martial Arts Club

    2014-01-01

    Kashima no Tachi Kenjutsu (KTK) – The Art of the Japanese Sabre For the fourth year the CERN Martial Arts Club organises courses of kenjutsu or art of the Japanese sabre. The classes are given by Gildo Mezzo, 6th Dan of the Tokyo Aikikai and responsible for Switzerland of the school Kashima no Tachi (the Sabre of Kashima), and his senior students. Regular visits of Masters from Japan and other countries are also organized. The Kashima School is a traditional Japanese school dating back to the 16th century Japan. The school can be practiced by all, without distinctions. The kenjutsu, educational discipline by definition, allows practitioners to fully express themselves. From initiation to advanced trainings, you are taught during the practice progression how to master your body, the rhythm, the attitude, the coordination of movements and spatial displacements. It's the discovery of the technical principles of the school through the study of dynamics, contact and balance. The courses take...

  12. Arte publico / Espacios abiertos

    OpenAIRE

    Salgado de la Rosa, María Asunción

    2002-01-01

    En la búsqueda de los puntos en común que aproximan el arte al espacio en el que este se sitúa, una vez que los vínculos que antaño unían el arte a la arquitectura como soporte imprescindible, atraviesan un estado de crisis, el hecho de la extensión del objeto artístico fuera de los límites físicos impuestos por el espacio de los museos y las galerías, plantea un nuevo debate acerca de la adecuación de los lugares, que en los últimos tiempos se destinan a contenerlo. Si nos centramos en re...

  13. Arts-in-Business

    DEFF Research Database (Denmark)

    Darsø, Lotte

    2002-01-01

    could bring forth new learning opportunities. The goal is to map the field, to develop new theory and to share the learning with our partners and networks. This paper proposes a theoretical framework of four categories of Arts-in-Business: "Metaphors", "Capabilities", "Events", and "Products". The main......Innovative Research in Management. The 2nd European Academy of Management (EURAM) Conference, Stockholm (Sweden). 2002 Short description: This positioning paper proposes a theoretical framework of four categories of Arts-in-Business. The main idea is to examine cases in relation to this model and...... to identify interesting trajectories of learning. Abstract: The Arts are being applied in business settings in new ways that give rise to a research field in the making. Learning Lab Denmark wants to contribute to this emerging field by identifying, examining and analysing international cases that...

  14. Art Integration and Cognitive Development

    OpenAIRE

    Baker, Dawn

    2013-01-01

    The arts have long been valued for their aesthetic contributions to education, and studies have been conducted to demonstrate their contribution to academic performance in an attempt to justify their inclusion in the curriculum. Art integration involves learning core content subjects (math, reading, language, science, social studies) through the arts (drama, dance, music, visual arts). The focus of this qualitative pilot study was to examine and describe how the arts are integrated with curri...

  15. PulsArt

    DEFF Research Database (Denmark)

    Fritsch, Jonas; Fogtmann, Maiken Hillerup; Sommer, Henrik

    2005-01-01

    Recent years have seen a growing interest in considering the domestic household as a new and important domain for interaction design. In this paper we present pulsArt - a physical and digital installation designed for the home to represent different family members’ level of activity by water...... running down blocks of salt based on a real-time reading of the individual family member’s pulse. We describe how pulsArt explores novel ways of looking at the interaction between the physical, the social and the technological and how it acts as a context-aware artefact, amplifying the domestic setting to...

  16. 9/11 Art

    OpenAIRE

    Nadja Bering Ovesen, Maj Winther Møller; Ida Løwenstein Holmen, Julie Stigsen; Irina Postelnicu, Michael Schulz

    2013-01-01

    This project aims to investigate the reasons behind the censoring of five art pieces inspired by the 9/11 attacks on the World Trade Center in 2001. The key issue in this project is to determine which psychological aspects came into play when the nation was struck by the traumatic event. This is done with the use of psychodynamic psychotherapy and the analysis of group trauma. Furthermore by examining the aesthetics and sociology of art, as well as the media’s coverage of events, it is discus...

  17. Art and the Mind

    OpenAIRE

    Various

    2003-01-01

    Works of art are cognitive devices aimed at the production of rich cognitive effects. Thus it can be argued, in the light of what is known about human cognition, that aesthetic experience is a by-product of the exercise of more fundamental cognitive faculties such as perception and imagination. Works of art, on this view, are never grasped directly. Rather, in an aesthetic experience, a subject directly perceives a certain object or event (a canvas, a display of pixels, a series of sounds), a...

  18. Is art a

    OpenAIRE

    Fabienne Crettaz von Roten; Olivier Moeschler

    2007-01-01

    This paper relates to a special case of science-society mediation set up during the Science et Cité festival 2005. This national event took place in about twenty cities in Switzerland to promote a closer cooperation between science and society via art (theatre, music, dance, exhibitions, cinema, etc.), in order to reach the population at large. Results on the profile of the public, the role played by the cultural institutions involved, the motives of the visitors and the role of art in the sc...

  19. Mercado Artes y Oficios

    OpenAIRE

    MIGUEL NOGUERA, ROCIO DE

    2015-01-01

    Proyecto de un mercado de las artes y oficios. Los dos aspectos más importantes son la producción y la exposición, ambos vinculados a la venta. La escuela de artes y oficiose está vinculada a la formación de artistas y, a la vez, a la producción. El proyecto se estructura en tres bandas. La primera de ellas está destinada a la exposición de obras y está vinculada directamente a un antiguo gasómetro, hito preexistente, que se usa como sala polivalente. La segunda banda es la centra...

  20. Art/Net/Work

    DEFF Research Database (Denmark)

    Andersen, Christian Ulrik; Lindstrøm, Hanne

    2006-01-01

    on the ‘network’ itself as a phenomenon and are often using technological networks as a mean of production and distribution. This changes the artistic practice and the distribution channels of art works – and the traditional notions of ‘work’, ‘origin’ and ‘rights’ are increasingly perceived as......The seminar Art|Net|Work deals with two important changes in our culture. On one side, the network has become essential in the latest technological development. The Internet has entered a new phase, Web 2.0, including the occurrence of as ‘Wiki’s’, ‘Peer-2-Peer’ distribution, user controlled...