310,805 research outputs found
A diagnostics algorithm for impact printer actuator
Cover title.Includes bibliographical references.Sheldon X.C. Lou, Sherman S. Wang
Open Heavy Flavor Production in p+p, d+Au and Au+Au Collisions at GeV
PHENIX results for open charm production from semi-lepton decay in p+p, d+Au
and Au+Au collisions in a wide rapidity ranges at GeV are
presented. Keywords: Relativistic Heavy-ion Collision, Open Charm production,
Nuclear Medium Effect PACS: 25.75.-q, 25.75 Dw, 13.20.G
Cryptanalysis of Yang-Wang-Chang's Password Authentication Scheme with Smart Cards
In 2005, Yang, Wang, and Chang proposed an improved timestamp-based password
authentication scheme in an attempt to overcome the flaws of Yang-Shieh_s
legendary timestamp-based remote authentication scheme using smart cards. After
analyzing the improved scheme proposed by Yang-Wang-Chang, we have found that
their scheme is still insecure and vulnerable to four types of forgery attacks.
Hence, in this paper, we prove that, their claim that their scheme is
intractable is incorrect. Also, we show that even an attack based on Sun et
al._s attack could be launched against their scheme which they claimed to
resolve with their proposal.Comment: 3 Page
Siu Wang-ngai, with Peter Lovrick. Chinese opera : images and stories
This article reviews the book Chinese Opera: Images and Stories , written by Siu Wang-ngai, with Peter Lovrick
Postscript: Reply to McLeod
This is my reply to McLeod’s reply (2015a) to my (2015) paper commenting on his (2011) interpretation of Wang Chong 王充 as an alethic pluralist
Jets and Dijets in Au+Au and p+p Collisions at RHIC
Recent data from RHIC suggest novel nuclear effects in the production of high
hadrons. We present results from the STAR detector on high angular
correlations in Au+Au and p+p collisions at GeV/c. These
two-particle angular correlation measurements verify the presence of a partonic
hard scattering and fragmentation component at high in both central and
peripheral Au+Au collisions. When triggering on a leading hadron with 4
GeV, we observe a quantitative agreement between the jet cone properties in p+p
and all centralities of Au+Au collisions. This quantitative agreement indicates
that nearly all hadrons with 4 GeV/c come from jet fragmentation and that
jet fragmentation properties are not substantially modified in Au+Au
collisions. STAR has also measured the strength of back-to-back high
charged hadron correlations, and observes a small suppression of the
back-to-back correlation strength in peripheral collisions, and a nearly
complete disappearance of back-to-back correlations in central Au+Au events.
These phenomena, toghether with the observed strong suppression of inclusive
yields and large value of elliptic flow at high , are consistent with a
model where high hadrons come from partons created near the surface of
the collision region, and where partons that originate or propagate towards the
center of the collision region are substantially slowed or completely absorbed.Comment: Proceedings of Quark Matter 2002, to appear in Nucl. Phys.
Removal of nitrogen pollutant from domestic wastewater
Water as a medium for waste transport would be easily contaminated by human activities. Many methods have been proposed to treat contaminated water to protect human health and biodiversity (Z. Daud et al., 2017). Due to upgrade the existing wastewater treatment plant facilities, the typically advanced technologies have been proposed to remove many types of pollutant, effectively (Tchobanoglous, Burton, & Stensel, 2004). The development of wastewater treatment plant needs to be considered leading economic indicators to have low operational and maintenance costs (Lewandowski, 2015; Shammas, Wang, & Wu, 2009). Aerobic digestion (AD) has been known since 1950 as biological wastewater treatment process to treat wastewater by removing the pollutants for instance colloids, organic compounds and suspended solids to avoid the excessive pollutants released into the receiving water (Shammas and Wang, 2007)
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