125,510 research outputs found
Comment on "Novel Convective Instabilities in a Magnetic Fluid"
Comment on the paper "Novel Convective Instabilities in a Magnetic Fluid" by
W. Luo, T. Du, and J. Huang, Phys. Rev. Lett., v.82, p.4134 (1999).Comment: 1 page, 1 figure, To appear in Phys. Rev. Lett. (2001
MS 223 Guide to Charles T. L. Huang, PhD Papers, 1973-2002
The Charles T. L. Huang, PhD papers contain notebooks, experiment lab data, professional papers of Dr. Huang that detail his career at Baylor College of Medicine and Texas Children\u27s Hospital. The collection consists of 5 boxes and loose materials (binders, notebooks) equaling 5 cubic feet. See more at https://archives.library.tmc.edu/ms-223
Supersymmetry and Deformations
We propose a manifestly supersymmetric generalization of the solvable deformation of two-dimensional field theories. For theories with
and supersymmetry, the deformation is defined by adding a term
to the superspace Lagrangian built from a superfield containing the
supercurrent. We prove that the energy levels of the resulting deformed theory
are determined exactly in terms of those of the undeformed theory. This
supersymmetric deformation extends to higher dimensions, where we conjecture
that it might provide a higher-dimensional analogue of ,
producing supersymmetric Dirac or Dirac-Born-Infeld actions in special cases.Comment: 32 pages; LaTeX; references and an acknowledgement adde
The Instanton Density at Finite Temperatures
For {\it low} T new strict results for the instanton density n(T) are
reported. Using the PCAC methods, we express n(T) in terms of {\it vacuum}
average values of certain operators, times their {\it calculated} T-dependence.
At high T, we discuss the {\it applicability} limits of the perturbative
results. We further speculate about possible behaviour of n(T) at
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The Portraits of a Heroine: Huang Bamei and the Politics of Wartime History in China and Taiwan, 1930–1960
This article explores the life and images of Huang Bamei (1906–1982)—a female bandit, guerrilla leader, and women’s organization coordinator. During the Second Sino-Japanese War (1937–1945), Huang was involved in smuggling and trade with pro-Japanese forces. The Nationalist authorities recruited her troops and hid her past by portraying her as a wartime heroine and model housewife. Yet, in later times she participated in guerrilla warfare and was portrayed as a pirate queen and a Han traitor, and her roles and images changed dramatically with the wars. Drawing on government archives, newspapers, memoirs, and films, this article examines how Huang developed survival strategies during turbulent times and how competing regimes used her images discursively to promote various social and political agendas and stimulate Chinese patriotism and war commemoration in different historical periods. Through a close reading of the life history of a woman made legendary by the state and the media, the article shows how Huang’s changing roles and competing representations were deeply embedded in the wartime politics of modern China and Taiwan. The author argues that Huang’s guerrilla practices, as well as her involvement in banditry, formed an integral part of not only her survival strategies but also a range of options for achieving legitimization. Keywords: Huang Bamei, pirate queen, female bandit, heroine, Second Sino-Japanese War, Chinese Civil War, Taiwa
A Correlation of Spectral Lag Evolution with Prompt Optical Emission in GRBs?
We report on observations of correlated behavior between the prompt gamma-ray
and optical emission from GRB 080319B, which (i) strongly suggest that they
occurred within the same astrophysical source region and (ii) indicate that
their respective radiation mechanisms were most likely dynamically coupled. Our
preliminary results, based upon a new cross-correlation function (CCF)
methodology for determining the time-resolved spectral lag, are summarized as
follows. First, the evolution in the arrival offset of prompt gamma-ray photon
counts between Swift-BAT 15-25 keV and 50-100 keV energy bands (intrinsic
gamma-ray spectral lag) appears to be anti-correlated with the arrival offset
between prompt 15-350 keV gamma-rays and the optical emission observed by
TORTORA (extrinsic optical/gamma-ray spectral lag), thus effectively
partitioning the burst into two main episodes at ~T+28+/-2 sec. Second, prompt
optical emission is nested within intervals of (a) trivial intrinsic gamma-ray
spectral lag (~T+12+-2 and ~T+50+/-2 sec) with (b) discontinuities in the hard
to soft evolution of the photon index for a power law fit to 15-150 keV
Swift-BAT data (~T+8+/-2 and ~T+48+/-1 sec), both of which coincide with the
rise (~T+10+/-1 sec) and decline (~T+50+/-1 sec) of prompt optical emission.
This potential discovery, robust across heuristic permutations of BAT energy
channels and varying temporal bin resolution, provides the first observational
evidence for an implicit connection between spectral lag and the dynamics of
shocks in the context of canonical fireball phenomenology.Comment: 5 pages. Adapted from a contribution to the Proceedings of the 2008
Nanjing GRB Conference. Edited by Y. F. Huang, Z. G. Dai and B. Zhan
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