نتایج جستجو برای: composite geochemical anomaly

تعداد نتایج: 172045  

2008
Oliver Bär

We discuss the issue of global anomalies in chiral gauge theories on the lattice. In Lüscher’s approach, these obstructions make it impossible to define consistently a fermionic measure for the path integral. We show that an SU(2) theory has such a global anomaly if the Weyl fermion is in the fundamental representation. The anomaly in higher representations is also discussed. We finally show th...

Journal: :Key Engineering Materials 2022

Vacuum assisted resin infusion (VARI) processes are widely used for the fabrication of large composite parts. For some years now, wind blades designed with thermoset materials, however, recyclability is often missing brick. The recent advent thermoplastic materials such as ELIUM©, developed by ARKEMA, shows possibility to consider manufacture very parts turbine recyclable constituents [1]. Fren...

2002
Tadahito NAKAJIMA

Using path integral method (Fujikawa’s method) we calculate anomalies in noncommutative gauge theories with fermions in the bi-fundamental and adjoint representation. We find that axial and chiral gauge anomalies coming from non-planar contributions are derived in the low noncommutative momentum limit p̃μ(≡ θpν) → 0. The adjoint chiral fermion carries no anomaly in non-planar sector in D = 4k(k ...

2016
Abhinav Kumar Singh Saurabh Garg Deepak J. Parekh Bharat Kedia Achla Bharti Yadav Sumit Kumar Yadav

Taurodontism is the morphoanatomical change in the shape of a tooth, which involves enlargement of the body of the tooth and shortening of the roots. Although a rare dental anomaly, unusual radicular form presents with challenging endodontic considerations. Endodontic management of taurodont teeth has been described as complex and difficult. The present article describes a brief literature revi...

2012
N. Cañellas-Boltà V. Rull A. Sáez O. Margalef S. Giralt J. J. Pueyo H. H. Birks

Macrofossil analysis of a composite 19 m long sediment core from Rano Raraku Lake (Easter Island) was related to litho-sedimentary and geochemical features of the sediment. Strong stratigraphical patterns are shown by indirect gradient analyses of the data. The good correspondence between the stratigraphical patterns derived from macrofossil (Correspondence Analysis) and sedimentary and geochem...

1996
Kiyoshi Okuyama Hiroshi Suzuki

We re-examine the generalized Pauli–Villars regularization proposed by Frolov and Slavnov, a possible gauge invariant Lagrangian-level regularization for a chiral fermion. When a chiral fermion belongs to a (pseudo-)real representation of the gauge group, the formulation always provides a complete gauge invariant regularization; a chiral fermion in an anomaly free complex representation seems t...

1997
Kiyoshi Okuyama Hiroshi Suzuki

We extend the idea of the generalized Pauli-Villars regularization of Frolov and Slavnov and analyze the general structure of the regularization scheme. The gauge anomaly-free condition emerges in a simple way in the scheme, and, under the standard prescription for the momentum assignment, the Pauli-Villars Lagrangian provides a gauge invariant regularization of chiral fermions in arbitrary ano...

Journal: :Applied Geochemistry 2021

Rare earth elements (REE) are powerful tracers for our understanding of sedimentary provenance and depositional processes. This study investigated geochemical characteristics REE in 226 sediment samples collected from the piedmont, central littoral plains North China Plain. Results showed that total concentrations exhibited a decreasing trend as piedmont > littoral, 82%, 70% 67% had higher than...

1993
A. Masiero M. Porrati R. Stora

We construct the Bardeen anomaly and its related Wess–Zumino term in the supersymmetric standard model. In particular we show that it can be written in terms of a composite linear superfield related to supersymmetrized Chern–Simons forms, in very much the same way as the Green–Schwarz term in four–dimensional string theory. Some physical applications, such as the contribution to the g–2 of gaug...

Journal: :E3S web of conferences 2021

The Xiadian active fault is one of the most important seismological faults in vicinity Beijing-Tianjin-Hebei region. This paper mainly focuses on geochemical characteristics to unveil and evaluate its activity. Via application soil gaseous radon measurement, a detailed field study at Qixinzhuang segment proposed. Based all impulse value we acquired 3 profiles area. We plotted trend chart profil...

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