4,890 research outputs found
Electron beam assisted CVD of silicon dioxide and silicon nitride films
Includes bibliographical references (page 84).A glow discharge electron beam has been used to deposit silicon dioxide (SiO2) and silicon nitride(Si3N4) films for microelectronic applications. Electron beam assisted CVD is a new technique in which the reaction volume is defined mainly by the geometry of the electron beam and offers the possibility of uniform deposition over large areas. The SiO2films were deposited in silane-nitrous oxide-nitrogen mixtures, and the Si3N4 films were deposited in silane ammonia-nitrogen mixtures. The films were deposited with a 2-4 kV electron beam parallel to the sample, at 0.1-1 Torr pressures, and at substrate temperatures from 50-400°C. The index of refraction, sthoichiometry, pinhole density, etch rate, conformal step coverage, and hydrogen bonding were measured
Intersections of Schubert varieties and eigenvalue inequalities in an arbitrary finite factor
It is known that the eigenvalues of selfadjoint elements a,b,c with a+b+c=0
in the factor R^omega (ultrapower of the hyperfinite II1 factor) are
characterized by a system of inequalities analogous to the classical Horn
inequalities of linear algebra. We prove that these inequalities are in fact
true for elements of an arbitrary finite factor. A matricial (`complete') form
of this result is equivalent to an embedding question formulated by Connes.Comment: 41 pages, many figure
Silicon nitride films deposited with an electron beam created plasma
Includes bibliographical references (page 600).Silicon nitride films have been deposited using an electron beam created plasma in a silane, ammonia, and nitrogen mixture. The films were deposited at substrate temperatures between 50 and 400 °C. Physical, chemical, and electrical properties of these films are reported
Inside the Loop: The Audio Functionality of Inside
The manner in which soundscapes evolve and change during gameplay can have many implications regarding player experience. INSIDE (Playdead in INSIDE. Released on Microsoft Windows, Playstation 4, Xbox One, Nintendo Switch and iOS, 2016) features a gameplay section in which rhythmic audio cues loop continuously both during gameplay and after player death. This paper uses this aspect of the soundtrack as a case study, examining the effects of looping sound effects and abstract musical cues on player immersion, ludic functionality, and episodic engagement. The concept of spectromorphology proposed by Smalley (Organised Sound 2(2):107â126, 1997) is used to analyse the way in which musical cues can retain ludic functionality and promote immersion in the absence of diegetic sound design. The âmusical sutureâ (Kamp, in: Ludomusicology: approaches to video game music, Equinox, Sheffield, 2016) created by continuously looping audio during death and respawn is also examined with regards to immersing the player within an evolving soundscape
ReadNet: A Hierarchical Transformer Framework for Web Article Readability Analysis
Analyzing the readability of articles has been an important sociolinguistic
task. Addressing this task is necessary to the automatic recommendation of
appropriate articles to readers with different comprehension abilities, and it
further benefits education systems, web information systems, and digital
libraries. Current methods for assessing readability employ empirical measures
or statistical learning techniques that are limited by their ability to
characterize complex patterns such as article structures and semantic meanings
of sentences. In this paper, we propose a new and comprehensive framework which
uses a hierarchical self-attention model to analyze document readability. In
this model, measurements of sentence-level difficulty are captured along with
the semantic meanings of each sentence. Additionally, the sentence-level
features are incorporated to characterize the overall readability of an article
with consideration of article structures. We evaluate our proposed approach on
three widely-used benchmark datasets against several strong baseline
approaches. Experimental results show that our proposed method achieves the
state-of-the-art performance on estimating the readability for various web
articles and literature.Comment: ECIR 202
Binding of Nucleobases with Single-Walled Carbon Nanotubes
We have calculated the binding energy of various nucleobases (guanine (G),
adenine (A), thymine (T) and cytosine (C)) with (5,5) single-walled carbon
nanotubes (SWNTs) using ab-initio Hartre-Fock method (HF) together with force
field calculations. The gas phase binding energies follow the sequence G A
T C. We show that main contribution to binding energy comes from
van-der Wall (vdW) interaction between nanotube and nucleobases. We compare
these results with the interaction of nucleobases with graphene. We show that
the binding energy of bases with SWNTs is much lower than the graphene but the
sequence remains same. When we include the effect of solvation energy
(Poisson-Boltzman (PB) solver at HF level), the binding energy follow the
sequence G T A C , which explains the experiment\cite{zheng}
that oligonucleotides made of thymine bases are more effective in dispersing
the SWNT in aqueous solution as compared to poly (A) and poly (C). We also
demonstrate experimentally that there is differential binding affinity of
nucleobases with the single-walled carbon nanotubes (SWNTs) by directly
measuring the binding strength using isothermal titration (micro) calorimetry.
The binding sequence of the nucleobases varies as thymine (T) adenine (A)
cytosine (C), in agreement with our calculation.Comment: 7 pages, 6 figure
Excited B mesons from the lattice
We determine the energies of the excited states of a heavy-light meson
, with a static heavy quark and light quark with mass approximately
that of the strange quark from both quenched lattices and with dynamical
fermions. We are able to explore the energies of orbital excitations up to L=3,
the spin-orbit splitting up to L=2 and the first radial excitation. These mesons will be very narrow if their mass is less than 5775 MeV -- the
threshold. We investigate this in detail and present evidence that the
scalar meson (L=1) will be very narrow and that as many as 6
excited states will have energies close to the threshold and should also
be relatively narrow.Comment: 17 pages, 6 ps figure
Professional judgement and decision-making in the planning process of high-level adventure sports coaching practice
This investigation examined the planning and decision-making processes in adventure sports coaching. We utilised a thematic analysis approach to investigate the planning decision-making practices of a sample of high-level adventure sports coaches over a series of sessions. The investigation discovered that, in planning coaching activity, high-level adventure sports coaches draw on their epistemological values and domain-specific expertise, employ a synergy of classic and naturalistic decision-making processes, and continually audit the evolving coaching process. Based on these findings, implications for professional training, accreditation and development of adventure sports coaches are presented
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A video life-world approach to consultation practice: The relevance of a socio-phenomenological approach
This article discusses the [development and] use of a video life-world schema to explore alternative orientations to the shared health consultation. It is anticipated that this schema can be used by practitioners and consumers alike to understand the dynamics of videoed health consultations, the role of the participants within it and the potential to consciously alter the outcome by altering behaviour during the process of interaction. The study examines health consultation participation and develops an interpretative method of analysis that includes image elicitation (via videos), phenomenology (to identify the components of the analytic framework), narrative (to depict the stories of interactions) and a reflexive mode (to develop shared meaning through a conceptual framework for analysis). The analytic framework is derived from a life-world conception of human mutual shared interaction which is presented here as a novel approach to understanding patient-centred care. The video materials used in this study were derived from consultations in a Walk-in Centre (WiC) in East London. The conceptual framework produced through the process of video analysis is comprised of different combinations of movement, knowledge and emotional conversations that are used to classify objective or engaged WiC health care interactions. The videoed interactions organise along an active or passive, facilitative or directive typical situation continuum illustrating different kinds of textual approaches to practice that are in tension or harmony. The schema demonstrates how practitioners and consumers interact to produce these outcomes and indicates the potential for both consumers and practitioners to be educated to develop practice dynamics that support patient-centred care and impact on health outcomes
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