36,333 research outputs found
Fiber Bragg grating cavity sensor for simultaneous measurement of strain and temperature
Author name used in this publication: Xiao-Ming TaoVersion of RecordPublishe
Why are there strong radio AGNs in the center of "non-cool core" clusters?
Radio AGN feedback in X-ray cool cores has been proposed as a crucial
ingredient in the evolution of baryonic structures. However, it has long been
known that strong radio AGNs also exist in "noncool core" clusters, which
brings up the question whether an X-ray cool core is always required for radio
feedback. We present a systematic analysis of 152 groups and clusters to show
that every BCG with a strong radio AGN has an X-ray cool core. Those strong
radio AGNs in the center of the "noncool core" systems identified before are in
fact associated with small X-ray cool cores with typical radii of < 5 kpc (we
call them coronae). Small coronae are most likely of ISM origin and they carry
enough fuel to power radio AGNs. Our results suggest that the traditional cool
core/noncool core dichotomy is too simple. A better alternative is the cool
core distribution function with the enclosed X-ray luminosity. Other
implications of our results are also discussed, including a warning on the
simple extrapolation of the density profile to derive Bondi accretion rate.Comment: 4 pages, 2 figure, to appear in proceedings of the conference "The
Monster's Fiery Breath: Feedback in Galaxies, Groups, and Clusters", June
2009, Madison, WI, Eds. S. Heinz & E. Wilcot
Methods for coating conducting polymer
US7510745; US7510745 B2; US7510745B2; US7,510,745; US 7,510,745 B2; 7510745; Application No. 11/222,179Inventor name used in this publication: Xiao-ming TaoInventor name used in this publication: Xiao-yin ChengUSVersion of Recor
On Yao's method of translation
Machine Translation, i.e., translating one kind of natural language to another kind of natural language by using a computer system, is a very important research branch in Artificial Intelligence. Yao developed a method of translation that he called ``Lexical-Semantic Driven". In his system he introduced 49 ``relation types" including case relations, event relations, semantic relations, and complex relations. The knowledge graph method is a new kind of method to represent an interlingua between natural languages. In this paper, we will give a comparison of these two methods. We will translate one Chinese sentence cited in Yao�s book by using these two methods. Finally, we will use the relations in knowledge graph theory to represent the ``relations" in Lexical-Semantic Driven, and partition the relations in Lexical-Semantic Driven into groups according to the relations in knowledge graph theory
- …