Synthesis and performance of A-site deficient lanthanum-doped strontium titanate by nanoparticle based spray pyrolysis

2012 ◽  
Vol 201 ◽  
pp. 26-36 ◽  
Author(s):  
Dariusz Burnat ◽  
Andre Heel ◽  
Lorenz Holzer ◽  
Dariusz Kata ◽  
Jerzy Lis ◽  
...  
1995 ◽  
Vol 412 ◽  
Author(s):  
A. V. Wolfsberg ◽  
B. A. Robinson ◽  
J. T. Fabryka-Martin

AbstractCharacterization and performance assessment (PA) studies for the potential high-level nuclear waste repository at Yucca Mountain require an understanding of migration mechanisms and pathways of radioactive solutes. Measurements of 36C1 in samples extracted from boreholes at the site are being used in conjunction with recent infiltration estimates to calibrate a site-scale flow and solute transport model. This exercise using the flow and solute transport model, FEHM, involves testing different model formulations and two different hypotheses to explain the occurrence of elevated 36Cl in the Calico Hills unit (CHn) which indicates younger water than in the overlying Topopah Spring unit (TSw). One hypothesis suggests fast vertical transport from the surface via fractures in the TSw to the CHn. An alternative hypothesis is that the elevated 36C1 concentrations reflect rapid horizontal flow in the CHn or at the interface between the CHn and the TSw with the source being vertical percolation under spatially isolated regions of high infiltration or at outcrops of those units. Arguments in favor of and against the hypotheses are described in conjunction with the site-scale transport studies.


2001 ◽  
Vol 79 (12) ◽  
pp. 1786-1788 ◽  
Author(s):  
A. G. Schrott ◽  
J. A. Misewich ◽  
M. Copel ◽  
D. W. Abraham ◽  
Y. Zhang

2005 ◽  
Vol 122 (2) ◽  
pp. 140-144 ◽  
Author(s):  
G. Branković ◽  
Z. Branković ◽  
M.S. Góes ◽  
C.O. Paiva-Santos ◽  
M. Cilense ◽  
...  

2019 ◽  
Vol 60 (2) ◽  
pp. 207-236
Author(s):  
Chelsea Phillips

In her recent book on celebrity pregnancy, legal scholar Renée Ann Cramer writes, “in the years from 1970 to 2000, popular culture became more open to performances of pregnancy; once kept secret and articulated as private, pregnancy became ‘public.’” This is not wholly true. In the English-speaking world, “celebrity pregnancy,” with its overt performances of femininity and maternity, bodily monitoring, and careful dance between the concealment and revelation of private information, had its first public moment in the long eighteenth century. That century's professional theatre was a site for the intersection of two forms of women's labor: the maternal labor of pregnancy and birth, which affected women of all classes throughout a century with rapidly rising birth rates, and the theatrical labor of professional actresses. Although the latter has been the subject of much-needed study in recent decades, the impact of maternal labor on the professional theatre of the time is only beginning to be explored. Between 1700 and 1800, birth rates for middle- and upper-class British woman rose significantly. Among the aristocracy, rates doubled from four to eight children, and middle-class women averaged seven births by the end of the century. At the same time, women in the professional theatre were inventing and modeling new forms of public womanhood, capitalizing on a burgeoning culture of female celebrity, and, in some cases, wielding exceptional economic and artistic power. Though not all actresses had children, many did, and at rates that were not unlike those of their nontheatrical counterparts. For these women, the successful balancing of maternal and theatrical labor could be vital to their careers and, in many cases, their family's survival. The need to balance personal and professional demands was all the more imperative within the hectic and extremely competitive repertory system. The day-to-day repertory of a London company was of necessity a malleable thing, accommodating short runs of popular pieces, audience requests, illnesses and absences of company members, and the perpetual state of competition between the patent houses of Covent Garden and Drury Lane. To compete profitably, managers needed competent and popular performers (bodies) and performance vehicles (texts) in which to feature them. As the available bodies changed, then, so too did the available plays for performance.


Ethnography ◽  
2020 ◽  
pp. 146613811989874
Author(s):  
Darryl Stellmach

This short reflection considers how humanitarian workers conceptualize and practice “the field” as a site of action. Through the use of narrative ethnography, and drawing on comparisons with the practice of academic anthropology, it attempts to draw out disciplinary assumptions that govern how and where humanitarian action is undertaken. It demonstrates how the field is a central imaginary that underpins the principles and performance of both anthropology and humanitarian action. It highlights how the conceptualization of “the field” is itself a methodological tool in the practice of humanitarian intervention.


2017 ◽  
Vol 20 (2) ◽  
pp. 221-238 ◽  
Author(s):  
Lucy Jackson ◽  
Gill Valentine

This article focuses on acts of resistance regarding reproductive politics in contemporary Britain. Drawing on empirical research this article investigates grassroots activism around a complex moral, social, and political problem. This article therefore focuses on a site of resistance in everyday urban environments, investigating the practice and performance involved. Identifying specifically the territory(ies) and territorialities of these specific sites of resistance, this article looks at how opposing groups negotiate conflict in public space in territorial, as well as habitual, ways. Second, the article focuses on questions around the impact, distinction, and novelty both in the immediate and long term of these acts of resistance for those in public space. Here, then, the focus shifts to the reactions to this particular form of protest and questions the “acceptability” of specific resistances in the public imaginary.


2019 ◽  
Vol 31 (3) ◽  
pp. 245-259
Author(s):  
Jason Allen-Paisant

I examine the staging of time, justice and performance in The Trial of Governor Eyre, investigating what this site-specific performance reveals about the experience of time in the context of colonial violence. In doing so, I show that the work’s discourse on temporality reflects a vital sense of performativity within an Afro-diasporic context. The work’s use of temporality, besides reflecting a cultural adaptation, allows for a remoulding of forms, coupling law and theatre in confronting Eyre’s mass executions of 1865. This remoulding of forms (law as theatre, theatre as law) provides a potential for postcolonial witnessing not available when either performance protocol is used on its own. Using Blazevic’s and Cale Feldman’s concept of ‘misperformance’, I argue that this play-trial arises out of a Benjaminian sense of historicity, providing an experience of inchoate justice that finds fulfilment in the present. The Trial of Governor Eyre points, more broadly, to a new ‘problem-space’ in African diaspora political theory, where resistance against colonial structures of oppression is increasingly mounted on the ground of justice itself and through which the legal apparatuses of colonialism become a site of critical memory. Through the play’s deployment of ritual and its plastic moulding of time, 1865 is enlisted as a key historical conjuncture for thinking through the cultural disenchantment of race, but also of the formalist, creative resources that can be mobilised for reimagining humanness in the contemporary moment.


2004 ◽  
Vol 28 (3) ◽  
pp. 152-162 ◽  
Author(s):  
Kirk D. Howell ◽  
Timothy B. Harrington

Abstract To quantify effects of nursery practices on seedling cost and performance, cherrybark oaks (Quercus pagoda L.) were grown in three container sizes (170, 650, or 1,250 cm3) with or without fertilization and then planted Dec. 1995 at a site near Milledgeville, GA, with or without removal of container soil. Initial size, biomass, and leaf area of seedlings grown in medium and large containers were up to twice those grown in small containers, and they were greater with versus without fertilization. Price efficiency (stem volume divided by estimated nursery price of 1,000 seedlings) was greatest for medium and large containers with soil removed and hypothetically reused. Differences in stem diameter and height due to container size and fertilization continued to diverge through the fifth year after planting. Fifth-year yield (stem volume × proportionate survival of 1,000 planted seedlings) increased 104, 56, and 31% with increasing container size and with fertilization and soil removal, respectively. Cost efficiency (fifth-year yield divided by costs compounded 5 years at 5% interest) was greatest for medium and large containers with soil removed. Joint comparisons of nursery costs, planting costs, and field performance for different seedling stock types provide an objective approach for prioritizing cultural treatments in forestry. South. J. Appl. For. 28(3):152–162.


Author(s):  
Christine Kim

This chapter examines works by Korean Canadian artist David Khang and Korean American writer Susan Choi through the lens of fragility in order to understand the complexities of diasporic publics as formations of feeling. Khang's art installation Mom's Crutch (2004) and performance art project Wrong Places (2007–14) and Choi's 1998 novel, The Foreign Student, underscore the need to spatialize discussions of postcolonial intimacies and affect by reminding that diaspora is an affective formation whose participants are situated within diverse national contexts, and that this tension shapes global politics and possibilities. Indeed, their projects speak to the geopolitics of feeling and the local, national, and global structures that shape delicate memories, racialize social intimacies, and formulate Asia as a site of alterity.


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