1,723,265 research outputs found
Lowcock, W M K, NX10682
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/400147Surname: LOWCOCK. Given Name(s) or Initials: W M K. Military Service Number or Last Known Location: NX10682. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 13769.218418
Item: [2016.0049.32440] "Lowcock, W M K, NX10682
Schneider, W M K, NX69521
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/415638Surname: SCHNEIDER. Given Name(s) or Initials: W M K. Military Service Number or Last Known Location: NX69521. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 38240.236284
Item: [2016.0049.47899] "Schneider, W M K, NX69521
Review of percolating and neck-based underfills with thermal conductivities up to 3 W/m-K
No full textS.140-150Heat dissipation from 3D chip stacks can cause large thermal gradients due to the accumulation of dissipated heat and thermal interfaces from each integrated die. To reduce the overall thermal resistance and thereby the thermal gradients, this publication will provide an overview of several studies on the formation of sequential thermal underfills that result in percolation and quasi-areal thermal contacts between the filler particles in the composite material. The quasi-areal contacts are formed from nanoparticles self-assembled by capillary bridging, so-called necks. Thermal conductivities of up to 2.5 W/m-K and 2.8 W/m-K were demonstrated experimentally for the percolating and the neck-based underfills, respectively. This is a substantial improvement with respect to a state-of-the-art capillary thermal underfill (0.7 W/m-K)
Dynamic Covalent Bonds in Vitrimers Enable 1.0 W/(m K) Intrinsic Thermal Conductivity
No full textPolymers are under increasing demand as thermal management
materials
for electronic devices such as integrated circuits and electrical
machines. However, the intrinsic thermal conductivity of polymers
is typically low, around 0.2 W/(m K). Although crystallinity is qualitatively
known to have a positive correlation with thermal conductivity, the
quantitative relationship is unclear because, in most cases, changes
in crystallinity are accompanied by differences in the chemical structure
of the polymer. In this work, vitrimers with a fixed chemical structure
and slow crystallization kinetics are investigated to reveal the relationships
between crystallinity and various physical properties relevant to
heat transport. As slow crystallization occurs over the span of one
week, the physical properties of the vitrimers also evolve. Changes
in thermal conductivity are dramatic from 0.10 to 1.0 W/(m K). Quantitative
relationships among crystallinity, thermal conductivity, speed of
sound, and chain conformation are elucidated by a combination of in
situ measurements
Dynamic Covalent Bonds in Vitrimers Enable 1.0 W/(m K) Intrinsic Thermal Conductivity
No full textPolymers are under increasing demand as thermal management
materials
for electronic devices such as integrated circuits and electrical
machines. However, the intrinsic thermal conductivity of polymers
is typically low, around 0.2 W/(m K). Although crystallinity is qualitatively
known to have a positive correlation with thermal conductivity, the
quantitative relationship is unclear because, in most cases, changes
in crystallinity are accompanied by differences in the chemical structure
of the polymer. In this work, vitrimers with a fixed chemical structure
and slow crystallization kinetics are investigated to reveal the relationships
between crystallinity and various physical properties relevant to
heat transport. As slow crystallization occurs over the span of one
week, the physical properties of the vitrimers also evolve. Changes
in thermal conductivity are dramatic from 0.10 to 1.0 W/(m K). Quantitative
relationships among crystallinity, thermal conductivity, speed of
sound, and chain conformation are elucidated by a combination of in
situ measurements
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Who was Vallabha, the invader of north Ceylon?
No full textWijetunga, W. M. K. (1962). 'Who was Vallabha, the invader of north Ceylon?,' University of Ceylon Review 20, no. 2, pp. 287-291. http://dlib.pdn.ac.lk/handle/123456789/153
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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