Under construction, building contractors in nineteenth century Belgium

Afterword

Poetics Today ◽

10.1215/03335372-7974142 ◽

2020 ◽

Vol 41 (1) ◽

pp. 141-150

Author(s):

Andrea Henderson

Keyword(s):

Nineteenth Century ◽

Literary Criticism ◽

The Other ◽

Lewis Carroll ◽

Theoretical Knowledge ◽

James Clerk Maxwell ◽

The One ◽

Under Construction ◽

Zero Sum

This essay reminds readers of the nineteenth-century origins of the disciplinary divide between scientific, formal-theoretical knowledge on the one hand and particularizing, creaturely knowledge on the other, arguing that we literary critics have tended to reify this divide even when we have sought to be more “scientific” in our methods. Logic falls on the far side of this divide; because we typically regard it as a consummately scientific and formalized practice, we presume that it is antithetical to our own. The essays in this collection amply demonstrate that this is not the case, and that logic can and has been set in a productive dialogue with both literature and literary criticism. Indeed, during the nineteenth century itself, disciplinary and methodological distinctions, although under construction, had not yet calcified, and so prompted self-conscious explorations of method rather than dictating its norms. Citing the extraordinary methodological flexibility of Victorian scientists and writers Lewis Carroll and James Clerk Maxwell, this essay reminds us that our relation to science and theoretical abstraction need not be a zero-sum game.

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The ranqueles ’ letters of the nineteenth century: a corpus under construction

Quinto Sol ◽

10.19137/qs.v23i3.2046 ◽

2019 ◽

Vol 23 (3) ◽

pp. 1-20

Author(s):

Marcela Tamagnini ◽

Keyword(s):

Nineteenth Century ◽

Under Construction

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Paper Monument : The Paradoxical Space in the English Paper Peepshow of the Thames Tunnel, 1825–1843

The Home, Nations and Empires, and Ephemeral Exhibition Spaces ◽

10.5117/9789463720809_ch09 ◽

2021 ◽

Author(s):

Shijia Yu

Keyword(s):

Nineteenth Century ◽

Technological Advancement ◽

Middle Classes ◽

Ambivalent Attitude ◽

Under Construction

A nineteenth-century optical toy, the paper peepshow is often considered to be the perfect medium to represent the Thames Tunnel. Yet, this perception overlooks the contradictory sentiments evoked by using the paper peepshow. This chapter, focusing on the period when the tunnel was under construction, seeks to analyze these paradoxes. Admittedly, various features of the paper peepshow can indeed render it a fitting medium to represent the tunnel. Yet, the expanded paper peepshow constitutes a space that is ephemeral, because of its brief existence and its fragility. While the ephemeral quality appears to contradict the monumental impression of the tunnel, this contrast would speak to the nineteenth-century English middle classes’ ambivalent attitude towards technological advancement, embodied in the tunnel.

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A Magnetic Spectrometer for a Scanning Transmission Electron Microscope

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100052195 ◽

1974 ◽

Vol 32 ◽

pp. 436-437

Author(s):

A. Kosiara ◽

J. W. Wiggins ◽

M. Beer

Keyword(s):

Scanning Transmission Electron Microscope ◽

Magnetic Spectrometer ◽

Fringe Field ◽

Curvature Radius ◽

Magnetic Pole ◽

Quadrupole Field ◽

Transmission Electron ◽

Scanning Transmission ◽

Under Construction ◽

Image Position

A magnetic spectrometer to be attached to the Johns Hopkins S. T. E. M. is under construction. Its main purpose will be to investigate electron interactions with biological molecules in the energy range of 40 KeV to 100 KeV. The spectrometer is of the type described by Kerwin and by Crewe Its magnetic pole boundary is given by the equationwhere R is the electron curvature radius. In our case, R = 15 cm. The electron beam will be deflected by an angle of 90°. The distance between the electron source and the pole boundary will be 30 cm. A linear fringe field will be generated by a quadrupole field arrangement. This is accomplished by a grounded mirror plate and a 45° taper of the magnetic pole.

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Radiation Damage Studies with the HVEM

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100096655 ◽

1972 ◽

Vol 30 ◽

pp. 680-681

Author(s):

J. J. Laidler ◽

B. Mastel

Keyword(s):

Radiation Damage ◽

Stainless Steels ◽

Volume Expansion ◽

Austenitic Stainless Steels ◽

Test Facility ◽

Fast Breeder Reactors ◽

Breeder Reactors ◽

Under Construction ◽

Development Laboratory ◽

Insight Into

One of the major materials problems encountered in the development of fast breeder reactors for commercial power generation is the phenomenon of swelling in core structural components and fuel cladding. This volume expansion, which is due to the retention of lattice vacancies by agglomeration into large polyhedral clusters (voids), may amount to ten percent or greater at goal fluences in some austenitic stainless steels. From a design standpoint, this is an undesirable situation, and it is necessary to obtain experimental confirmation that such excessive volume expansion will not occur in materials selected for core applications in the Fast Flux Test Facility, the prototypic LMFBR now under construction at the Hanford Engineering Development Laboratory (HEDL). The HEDL JEM-1000 1 MeV electron microscope is being used to provide an insight into trends of radiation damage accumulation in stainless steels, since it is possible to produce atom displacements at an accelerated rate with 1 MeV electrons, while the specimen is under continuous observation.

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Description of a New High Resolution Scanning Transmission EM

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100095340 ◽

1972 ◽

Vol 30 ◽

pp. 418-419

Author(s):

Michael Beer ◽

J. W. Wiggins ◽

David Woodruff ◽

Jon Zubin

Keyword(s):

High Resolution ◽

Field Emission ◽

Energy Dispersive Spectrometer ◽

Scanning Transmission Electron Microscope ◽

Objective Lens ◽

Condenser Lens ◽

Transmission Electron ◽

Pattern Size ◽

Scanning Transmission ◽

Under Construction

A high resolution scanning transmission electron microscope of the type developed by A. V. Crewe is under construction in this laboratory. The basic design is completed and construction is under way with completion expected by the end of this year.The optical column of the microscope will consist of a field emission electron source, an accelerating lens, condenser lens, objective lens, diffraction lens, an energy dispersive spectrometer, and three electron detectors. For any accelerating voltage the condenser lens function to provide a parallel beam at the entrance of the objective lens. The diffraction lens is weak and its current will be controlled by the objective lens current to give an electron diffraction pattern size which is independent of small changes in the objective lens current made to achieve focus at the specimen. The objective lens demagnifies the image of the field emission source so that its Gaussian size is small compared to the aberration limit.

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