Microstructural characterization of early Twentieth‐Century British period Indian copper coins

2021 ◽  
Author(s):  
Preeti Verma ◽  
Ghanshyam Lal ◽  
Manager Singh
Keyword(s):  
Twentieth Century ◽  
Microstructural Characterization ◽  
Early Twentieth Century

Lunatic Forms

2020 ◽  
pp. 53-86
Author(s):  
Natalie Pollard
Keyword(s):  
Twentieth Century ◽  
Commedia Dell'arte ◽  
Narrative Strategies ◽  
Early Twentieth Century ◽  
Character Types

Chapter 1 examines derivation and re-animation in Djuna Barnes’s early-twentieth-century lyric novel, Nightwood, focusing on redeployed aesthetic figures: the sleepwalker, the unstoppable narrator, the animate statue. It shows how Barnes’s resurrection of character types is informed by the genre-fusing innovations of the commedia dell’arte. It reads Barnes in dialogue with both Laforgue’s and Verlaine’s development of the Pierrot-figure, and the sad and ominous clowns in grotesque theatre, which inform Chaplin’s Tramp and Beckett’s clowns, as well as Barnes’s characterization of the ‘doctor’. Does Nightwood cast its characters in stone, locking them into old, ritualized narrative strategies? Or are these types themselves on the move; re-animating generations of performances and forms, from Shakespeare’s bawdy, to Rabelais’s carnivalesque, to Aphra Behn’s moon-philosopher, Doctor Balierdo?

scholarly journals Curriculum, knowledge, and the idea of South Africa

2015 ◽  
Vol 7 (2) ◽  
pp. 26-45
Author(s):  
Crain Soudien
Keyword(s):  
South Africa ◽  
Twentieth Century ◽  
Social Space ◽  
Modern World ◽  
Social Difference ◽  
New Approach ◽  
Higher Education System ◽  
Early Twentieth Century ◽  
Curriculum Project

South Africa is an important social space in world history and politics for understanding how the modern world comes to deal with the questions of social difference, and the encounter of people with different civilizational histories. In this essay I argue that a particular racial idea inflected this encounter. One of the ways in which this happened was through the dominance of late nineteenthcentury and early twentieth-century positivism. In setting up the argument for this essay, I begin with a characterization of the nature of early South Africa's modernity, the period in which the country's political and intellectual leadership began to outline the kinds of knowledges they valued. I argue that a scientism, not unlike the positivism that emerges in many parts of the world at this time, came to inform discussions of progress and development in the country at the end of the nineteenth century. This was continued into the early twentieth century, and was evident in important interventions in the country such as the establishment of the higher education system and initiatives like the Carnegie Inquiry of 1933. The key effect of this scientism, based as it was on the conceits of objectivity and neutrality, was to institute suspicion of all other forms of knowing, and most critically that of indigenous knowledge. In the second part of the paper, I show that this scientism persists in the post-apartheid curriculum project. Finally, I make an exploratory argument, drawing on the concept of the 'transaction' in John Dewey, for a new approach to knowing.

Frozen in the Glassy, Bluestreaked Air

2017 ◽  
Author(s):  
Alix Beeston
Keyword(s):  
Twentieth Century ◽  
Central Character ◽  
Male Gaze ◽  
Female Characters ◽  
Modern City ◽  
Early Twentieth Century ◽  
Female Bodies

This chapter interprets the serialized narration and characterization of John Dos Passos’s Manhattan Transfer (1925) in line with the figuring of female bodies through the photographic apparatus of advertisement and celebrity that was ancillary to popular Broadway entertainments in the early twentieth century. Unpacking the image of Ellen Thatcher, Dos Passos’s central character, as a photograph at the end of the multilinear novel, it accounts for Dos Passos’s critique of the patriarchal, white-centric specular economy of the modern city. The photographic freezing of the wealthy, white Ellen registers her imprisonment to the male gaze and her resistance to those who are ethnically and socially other to her. Yet by the additive construction of its female characters, Manhattan Transfer undercuts Ellen’s sense of her essentialized difference from the novel’s other women.

scholarly journals Characterization of foxing stains in early twentieth century photographic and paper materials

2016 ◽  
Vol 33 (7) ◽  
pp. 987-996 ◽  
Author(s):  
Aurora Modica ◽  
Maurizio Bruno ◽  
Marco Di Bella ◽  
Maria Francesca Alberghina ◽  
Maria Brai ◽  
...  
Keyword(s):  
Twentieth Century ◽  
Early Twentieth Century

The Birth of Living Radium

2007 ◽  
Vol 97 (1) ◽  
pp. 1-27 ◽  
Author(s):  
Luis Campos
Keyword(s):  
Twentieth Century ◽  
Origin Of Life ◽  
Half Life ◽  
Biological Research ◽  
Early Twentieth Century ◽  
The Origin Of Life

This article traces the half-life of a series of provocative and productive interconnections between radium, radioactivity, and life in the early twentieth century. Examining the metaphysics of metaphor set in motion by a widespread discourse of "living radium" among physicists and a radium-crazed public alike, I suggest how such conceptions may ultimately have shaped fundamental biological research into the origin of life, the nature of mutation, and even the characterization of the gene.

Some Polish Composers of To-Day

Tempo ◽  
1948 ◽  
pp. 25-28
Author(s):  
Andrzej Panufnik
Keyword(s):  
Twentieth Century ◽  
Fertile Soil ◽  
Early Twentieth Century ◽  
Progressive Group ◽  
Karol Szymanowski

It is ten years since KAROL SZYMANOWSKI died at fifty-four. He was the most prominent representative of the “radical progressive” group of early twentieth century composers, which we call “Young Poland.” In their manysided and pioneering efforts they prepared the fertile soil on which Poland's present day's music thrives.

Microstructural characterization of CoPtCr/Cr thin film disks by cross-section TEM and elongated probe micro-diffraction

1991 ◽  
Vol 49 ◽  
pp. 762-763
Author(s):  
M.A. Parker ◽  
K.E. Johnson ◽  
C. Hwang ◽  
A. Bermea
Keyword(s):  
Magnetic Recording ◽  
Electron Probe ◽  
Microstructural Characterization ◽  
Crystallographic Structure ◽  
Recording Media ◽  
Layer By Layer ◽  
Cross Sectional ◽  
New Techniques ◽  
Polished Side

We have reported the dependence of the magnetic and recording properties of CoPtCr recording media on the thickness of the Cr underlayer. It was inferred from XRD data that grain-to-grain epitaxy of the Cr with the CoPtCr was responsible for the interaction observed between these layers. However, no cross-sectional TEM (XTEM) work was performed to confirm this inference. In this paper, we report the application of new techniques for preparing XTEM specimens from actual magnetic recording disks, and for layer-by-layer micro-diffraction with an electron probe elongated parallel to the surface of the deposited structure which elucidate the effect of the crystallographic structure of the Cr on that of the CoPtCr.XTEM specimens were prepared from magnetic recording disks by modifying a technique used to prepare semiconductor specimens. After 3mm disks were prepared per the standard XTEM procedure, these disks were then lapped using a tripod polishing device. A grid with a single 1mmx2mm hole was then glued with M-bond 610 to the polished side of the disk.

Microstructural Characterization of Au-Ge-Ni based ohmic contacts to GaAs/AlGaAs modfet device

1987 ◽  
Vol 45 ◽  
pp. 326-327
Author(s):  
A.K. Rai ◽  
A.K. Petford-Long ◽  
A. Ezis ◽  
D.W. Langer
Keyword(s):  
Contact Resistance ◽  
Ohmic Contact ◽  
Ohmic Contacts ◽  
Microstructural Characterization ◽  
Almost Everywhere ◽  
Spacer Layer ◽  
Good Contact ◽  
The Relationship ◽  
Lower Contact

Considerable amount of work has been done in studying the relationship between the contact resistance and the microstructure of the Au-Ge-Ni based ohmic contacts to n-GaAs. It has been found that the lower contact resistivity is due to the presence of Ge rich and Au free regions (good contact area) in contact with GaAs. Thus in order to obtain an ohmic contact with lower contact resistance one should obtain a uniformly alloyed region of good contact areas almost everywhere. This can possibly be accomplished by utilizing various alloying schemes. In this work microstructural characterization, employing TEM techniques, of the sequentially deposited Au-Ge-Ni based ohmic contact to the MODFET device is presented.The substrate used in the present work consists of 1 μm thick buffer layer of GaAs grown on a semi-insulating GaAs substrate followed by a 25 Å spacer layer of undoped AlGaAs.

Microstructural characterization of a cast RENi5-based alloy

1993 ◽  
Vol 51 ◽  
pp. 1176-1177
Author(s):  
G. M. Micha ◽  
L. Zhang
Keyword(s):  
Electron Microscopy ◽  
Rare Earth ◽  
Microstructural Characterization ◽  
Binary Compound ◽  
Nickel Metal ◽  
Cast Material ◽  
Nickel Metal Hydride ◽  
Transmission Electron ◽  
Cast Condition

RENi5 (RE: rare earth) based alloys have been extensively evaluated for use as an electrode material for nickel-metal hydride batteries. A variety of alloys have been developed from the prototype intermetallic compound LaNi5. The use of mischmetal as a source of rare earth combined with transition metal and Al substitutions for Ni has caused the evolution of the alloy from a binary compound to one containing eight or more elements. This study evaluated the microstructural features of a complex commercial RENi5 based alloy using scanning and transmission electron microscopy.The alloy was evaluated in the as-cast condition. Its chemistry in at. pct. determined by bulk techniques was 12.1 La, 3.2 Ce, 1.5 Pr, 4.9 Nd, 50.2 Ni, 10.4 Co, 5.3 Mn and 2.0 Al. The as-cast material was of low strength, very brittle and contained a multitude of internal cracks. TEM foils could only be prepared by first embedding pieces of the alloy in epoxy.

V1214: Edward Loughborough Keyes: An Early Twentieth Century Leader In Urology

2004 ◽  
Vol 171 (4S) ◽  
pp. 320-320
Author(s):  
Peter J. Stahl ◽  
E. Darracott Vaughan ◽  
Edward S. Belt ◽  
David A. Bloom ◽  
Ann Arbor
Keyword(s):  
Twentieth Century ◽  
Early Twentieth Century
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