scholarly journals Liquid silver tris(perfluoroethyl)trifluorophosphate salts as new media for propene/propane separation

2016 ◽  
Vol 18 (40) ◽  
pp. 28242-28253 ◽  
Author(s):  
Daniel Pliquett ◽  
Peter S. Schulz ◽  
Frank W. Heinemann ◽  
Angela Bause ◽  
Peter Wasserscheid
Keyword(s):  
New Media ◽  
Liquid Silver

The preparation and characterization of new liquid Ag[FAP] complexes as well as their use in propene/propane separation is presented.

The Language of Threat in our Political Discourse

2014 ◽  
pp. 212-230
Author(s):  
G. R. Boynton ◽  
Glenn W. Richardson, Jr.
Keyword(s):  
New Media ◽  
Free Speech ◽  
House Of Representatives ◽  
Political Discourse ◽  
Political Rhetoric ◽  
Appropriate Use ◽  
Blood Libel ◽  
Campaign Rhetoric

This chapter is a report about negotiating the boundaries of appropriate political discourse via Twitter. The instance looked at in depth is the communication about the shooting of Representative Giffords in 2011. The first month over 400,000 messages referred to Giffords and substantially more referred to the controversy about the campaign rhetoric of targets and reloading. The authors tracked the communication in 6 ongoing collections of streams of messages and 2 that resulted from the shooting and controversy. One stream was about how “terrorist” was used in characterizing the shooter. The major controversy was about the use of targeting or gun references in campaign rhetoric. Palin released a video using the phrase “blood libel” leading to opposing interpretations of the appropriate use of the term. The authors look in less depth at the controversy in early 2012 about Rush Limbaugh's characterization of a student who testified to a committee of the House of Representatives. That controversy reinforced points found in the communication about the Giffords shooting. It also reminds us that the boundaries of appropriate political rhetoric are continuously negotiated in a free speech society and that there is now a new domain for the negotiation in the new media.

“How many slaves work for you?” Race, new media, and neoliberal consumer activism

2016 ◽  
Vol 17 (1) ◽  
pp. 46-61 ◽  
Author(s):  
Allison Page
Keyword(s):  
New Media ◽  
Global South ◽  
Ethical Consumption ◽  
Forced Labor ◽  
Slave Labor ◽  
Free Labor ◽  
Consumer Activism ◽  
Modern Day Slavery ◽  
Consumption Habits

This article analyzes the website slaveryfootprint.org, which purports to measure consumers’ reliance on slave labor in the Global South by analyzing the users’ consumption habits. The site offers neoliberal consumer solutions to “solve” the problem of what it terms modern-day slavery. I argue that the characterization of slavery on slaveryfootprint.org (and the process of de-fetishizing this labor) attempts to shore up a distinction between “free” and forced labor, but unwittingly illuminates the ambiguity of this divide. By understanding slavery as embedded in capitalism, I suggest that we can challenge slaveryfootprint.org’s distinction between “free” labor and slavery, and in the process, the notion of “ethical” consumption.

scholarly journals The forms of content presentation in educational media (on the example of Arzamas educational media project)

Litera ◽  
2021 ◽  
pp. 115-131
Author(s):  
Lyudmila Cherednichenko ◽  
Anastasiya Lapko
Keyword(s):  
New Media ◽  
Media Content ◽  
Editorial Office ◽  
Educational Media ◽  
Online Journalism ◽  
The Subject ◽  
Functional Purpose ◽  
Media Project ◽  
Educational Information

The subject of this research is the forms of content presentation in educational media, which are quite a large developing typological group and comprise a substantial segment of the Russian information market. The editorial offices of these resources implement the new formats of presentation of scientific-educational information from various areas of knowledge in accordance with the development trends of journalism and meeting the interests and needs of the audience. The hypothesis of this research is reflected in the thought that for solution of creative tasks and fulfilling their functional-target purpose, the educational media use such formats that involve the most. Using the publications of the Arzamas online media project, the author explores the possibilities of various forms of presentation of educational information. The novelty of this work is defined by the poor study of this type of online publication formats, and consists in determination and characterization of the basic forms of content presentation in educational media in the context of the development of online journalism formats. The author reviews the forms of educational media content within the framework of the development of journalism and characteristics of the modern media text.  The article identifies the main forms of content presentation of Arzamas educational media project, reveals their peculiarities and functional purpose. The conclusion is made that for implementation of their functional-target purpose, the educational media employ combinatory forms that allow solving the educational and recreational tasks. The editorial office of Arzamas educational media projects creates hypertextual and multimedia educational environment, resorting to the traditional genres of journalism, as well as formats of the new media.

Morphological Characterization of Mycobacteriophage R1

1974 ◽  
Vol 32 ◽  
pp. 254-255
Author(s):  
B. L. Soloff ◽  
T. A. Rado
Keyword(s):  
Carbon Source ◽  
Stationary Phase ◽  
Growth Phase ◽  
Minimal Medium ◽  
Morphological Characterization ◽  
Logarithmic Growth Phase ◽  
Complete Lysis ◽  
Lysogenic Culture ◽  
Logarithmic Growth

Mycobacteriophage R1 was originally isolated from a lysogenic culture of M. butyricum. The virus was propagated on a leucine-requiring derivative of M. smegmatis, 607 leu−, isolated by nitrosoguanidine mutagenesis of typestrain ATCC 607. Growth was accomplished in a minimal medium containing glycerol and glucose as carbon source and enriched by the addition of 80 μg/ ml L-leucine. Bacteria in early logarithmic growth phase were infected with virus at a multiplicity of 5, and incubated with aeration for 8 hours. The partially lysed suspension was diluted 1:10 in growth medium and incubated for a further 8 hours. This permitted stationary phase cells to re-enter logarithmic growth and resulted in complete lysis of the culture.

AEM analysis of crystallization in Ti-based amorphous alloys

1983 ◽  
Vol 41 ◽  
pp. 270-271
Author(s):  
A.R. Pelton ◽  
A.F. Marshall ◽  
Y.S. Lee
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Amorphous Materials ◽  
Isothermal Annealing ◽  
Amorphous Matrix ◽  
Nucleation And Growth ◽  
Current Interest ◽  
Amorphous Films ◽  
Electrical And Magnetic Properties

Amorphous materials are of current interest due to their desirable mechanical, electrical and magnetic properties. Furthermore, crystallizing amorphous alloys provides an avenue for discerning sequential and competitive phases thus allowing access to otherwise inaccessible crystalline structures. Previous studies have shown the benefits of using AEM to determine crystal structures and compositions of partially crystallized alloys. The present paper will discuss the AEM characterization of crystallized Cu-Ti and Ni-Ti amorphous films.Cu60Ti40: The amorphous alloy Cu60Ti40, when continuously heated, forms a simple intermediate, macrocrystalline phase which then transforms to the ordered, equilibrium Cu3Ti2 phase. However, contrary to what one would expect from kinetic considerations, isothermal annealing below the isochronal crystallization temperature results in direct nucleation and growth of Cu3Ti2 from the amorphous matrix.

Characterization of Coherent, Ordered Precipitates in Nickel-Base Alloys

1973 ◽  
Vol 31 ◽  
pp. 144-145
Author(s):  
B. H. Kear ◽  
J. M. Oblak
Keyword(s):  
Stable Phase ◽  
Nickel Base Superalloy ◽  
Alloy 718 ◽  
Commercial Alloy ◽  
Precipitate Morphology ◽  
Continuous Precipitation ◽  
Nickel Base ◽  
Base Superalloy ◽  
Strengthening Precipitate

A nickel-base superalloy is essentially a Ni/Cr solid solution hardened by additions of Al (Ti, Nb, etc.) to precipitate a coherent, ordered phase. In most commercial alloy systems, e.g. B-1900, IN-100 and Mar-M200, the stable precipitate is Ni3 (Al,Ti) γ′, with an LI2structure. In A lloy 901 the normal precipitate is metastable Nis Ti3 γ′ ; the stable phase is a hexagonal Do2 4 structure. In Alloy 718 the strengthening precipitate is metastable γ″, which has a body-centered tetragonal D022 structure.Precipitate MorphologyIn most systems the ordered γ′ phase forms by a continuous precipitation re-action, which gives rise to a uniform intragranular dispersion of precipitate particles. For zero γ/γ′ misfit, the γ′ precipitates assume a spheroidal.

The Use of Advanced Analytical Techniques for Characterization of the Chemical, Physical, and Crystallographic Nature of a Surface

1973 ◽  
Vol 31 ◽  
pp. 132-133 ◽  
Author(s):  
R. E. Herfert
Keyword(s):  
Surface Characterization ◽  
Analytical Techniques ◽  
X Ray Diffraction ◽  
Depth Of Penetration ◽  
X Ray ◽  
The Past ◽  
Transmission Electron ◽  
Scanning Electron

Studies of the nature of a surface, either metallic or nonmetallic, in the past, have been limited to the instrumentation available for these measurements. In the past, optical microscopy, replica transmission electron microscopy, electron or X-ray diffraction and optical or X-ray spectroscopy have provided the means of surface characterization. Actually, some of these techniques are not purely surface; the depth of penetration may be a few thousands of an inch. Within the last five years, instrumentation has been made available which now makes it practical for use to study the outer few 100A of layers and characterize it completely from a chemical, physical, and crystallographic standpoint. The scanning electron microscope (SEM) provides a means of viewing the surface of a material in situ to magnifications as high as 250,000X.

Skeletal elements of crinoid echinoderms: High-resolution structural and microanalytical results

1983 ◽  
Vol 41 ◽  
pp. 194-195
Author(s):  
D. F. Blake ◽  
L. F. Allard ◽  
D. R. Peacor
Keyword(s):  
High Resolution ◽  
Marine Invertebrates ◽  
Sea Urchins ◽  
Structural Features ◽  
Sea Stars ◽  
High Resolution Tem ◽  
Relationship Of ◽  
The Relationship ◽  
Insight Into

Echinodermata is a phylum of marine invertebrates which has been extant since Cambrian time (c.a. 500 m.y. before the present). Modern examples of echinoderms include sea urchins, sea stars, and sea lilies (crinoids). The endoskeletons of echinoderms are composed of plates or ossicles (Fig. 1) which are with few exceptions, porous, single crystals of high-magnesian calcite. Despite their single crystal nature, fracture surfaces do not exhibit the near-perfect {10.4} cleavage characteristic of inorganic calcite. This paradoxical mix of biogenic and inorganic features has prompted much recent work on echinoderm skeletal crystallography. Furthermore, fossil echinoderm hard parts comprise a volumetrically significant portion of some marine limestones sequences. The ultrastructural and microchemical characterization of modern skeletal material should lend insight into: 1). The nature of the biogenic processes involved, for example, the relationship of Mg heterogeneity to morphological and structural features in modern echinoderm material, and 2). The nature of the diagenetic changes undergone by their ancient, fossilized counterparts. In this study, high resolution TEM (HRTEM), high voltage TEM (HVTEM), and STEM microanalysis are used to characterize tha ultrastructural and microchemical composition of skeletal elements of the modern crinoid Neocrinus blakei.

Some applications of electron beam microanalysis techniques in VLSI process evaluation

1983 ◽  
Vol 41 ◽  
pp. 160-161
Author(s):  
Simon Thomas
Keyword(s):  
Integrated Circuits ◽  
Process Evaluation ◽  
Large Scale ◽  
Technology Development ◽  
Analytical Techniques ◽  
Successful Implementation ◽  
Analysis Of Failures ◽  
Characterization Of Materials ◽  
Circuits Vlsi

Trends in the technology development of very large scale integrated circuits (VLSI) have been in the direction of higher density of components with smaller dimensions. The scaling down of device dimensions has been not only laterally but also in depth. Such efforts in miniaturization bring with them new developments in materials and processing. Successful implementation of these efforts is, to a large extent, dependent on the proper understanding of the material properties, process technologies and reliability issues, through adequate analytical studies. The analytical instrumentation technology has, fortunately, kept pace with the basic requirements of devices with lateral dimensions in the micron/ submicron range and depths of the order of nonometers. Often, newer analytical techniques have emerged or the more conventional techniques have been adapted to meet the more stringent requirements. As such, a variety of analytical techniques are available today to aid an analyst in the efforts of VLSI process evaluation. Generally such analytical efforts are divided into the characterization of materials, evaluation of processing steps and the analysis of failures.

Irradiation behavior of pyrolytic silicon carbide

1983 ◽  
Vol 41 ◽  
pp. 72-73
Author(s):  
R. J. Lauf
Keyword(s):  
Silicon Carbide ◽  
Fission Products ◽  
Thermodynamics And Kinetics ◽  
Neutron Fluences ◽  
Fuel Particles ◽  
Sic Coatings ◽  
Irradiation Behavior ◽  
Kinetics Of ◽  
Htgr Fuel

Fuel particles for the High-Temperature Gas-Cooled Reactor (HTGR) contain a layer of pyrolytic silicon carbide to act as a miniature pressure vessel and primary fission product barrier. Optimization of the SiC with respect to fuel performance involves four areas of study: (a) characterization of as-deposited SiC coatings; (b) thermodynamics and kinetics of chemical reactions between SiC and fission products; (c) irradiation behavior of SiC in the absence of fission products; and (d) combined effects of irradiation and fission products. This paper reports the behavior of SiC deposited on inert microspheres and irradiated to fast neutron fluences typical of HTGR fuel at end-of-life.

Sign in / Sign up

Export Citation Format

Share Document