3,696 research outputs found
Fine-Structure Line Emission from the Outflows of Young Stellar Objects
The flux and line shape of the fine-structure transitions of \NeII\ and
\NeIII\ at 12.8 and 15.55\,m and of the forbidden transitions of \OI\
are calculated for young stellar objects with a range of
mass-loss rates and X-ray luminosities using the X-wind model of jets and the
associated wide-angle winds. For moderate and high accretion rates, the
calculated \NeII\ line luminosity is comparable to or much larger than produced
in X-ray irradiated disk models. All of the line luminosities correlate well
with the main parameter in the X-wind model, the mass-loss rate, and also with
the assumed X-ray luminosity --- and with one another. The line shapes of an
approaching jet are broad and have strong blue-shifted peaks near the effective
terminal velocity of the jet. They serve as a characteristic and testable
aspect of jet production of the neon fine-structure lines and the \OI\
forbidden transitions.Comment: 8 pages, 5 figures, published in Ap
TREND: Trigger-Enhanced Relation-Extraction Network for Dialogues
The goal of dialogue relation extraction (DRE) is to identify the relation
between two entities in a given dialogue. During conversations, speakers may
expose their relations to certain entities by explicit or implicit clues, such
evidences called "triggers". However, trigger annotations may not be always
available for the target data, so it is challenging to leverage such
information for enhancing the performance. Therefore, this paper proposes to
learn how to identify triggers from the data with trigger annotations and then
transfers the trigger-finding capability to other datasets for better
performance. The experiments show that the proposed approach is capable of
improving relation extraction performance of unseen relations and also
demonstrate the transferability of our proposed trigger-finding model across
different domains and datasets.Comment: Accepted to SIGDIAL 2022; The first two authors contributed to this
work equall
Automatic verification of multi-threaded programs by inference of rely-guarantee specifications
Ministry of Education, Singapore under its Academic Research Funding Tier 2; National Research Foundation (NRF) Singapor
Fabrication of multianalyte CeO2 nanograin electrolyte–insulator–semiconductor biosensors by using CF4 plasma treatment
Multianalyte CeO2 biosensors have been demonstrated to detect pH, glucose, and urine concentrations. To enhance the multianalyte sensing capability of these biosensors, CF4 plasma treatment was applied to create nanograin structures on the CeO2 membrane surface and thereby increase the contact surface area. Multiple material analyses indicated that crystallization or grainization caused by the incorporation of flourine atoms during plasma treatment might be related to the formation of the nanograins. Because of the changes in surface morphology and crystalline structures, the multianalyte sensing performance was considerably enhanced. Multianalyte CeO2 nanograin electrolyte–insulator–semiconductor biosensors exhibit potential for use in future biomedical sensing device applications
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