oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 64 )

2018 ( 520 )

2017 ( 554 )

2016 ( 546 )

Custom range...

Search Results: 1 - 10 of 51765 matches for " Jun Su "
All listed articles are free for downloading (OA Articles)
Page 1 /51765
Display every page Item
The Current Opinions of Capillary Leak Syndrome  [PDF]
Jun Su, Ying Zhang, Wei Hu
Open Journal of Clinical Diagnostics (OJCD) , 2015, DOI: 10.4236/ojcd.2015.51003
Abstract: Capillary Leak Syndrome (CLS) in patients with severe course of disease is more and more common, and the clinical manifestations of CLS include systemic edema, hypoproteinemia, effective circulating blood volume reduction and hemoconcentration. The common pathogenies are sepsis, severe trauma, cardiopulmonary bypass and so on. Clinically, CLS is usually divided into leakage period and recovery period, with different pathophysiologic process, clinical manifestation and treatment in different period respectively. Although there are more treatments, they are not effective treatment measures. There have been so many studies about improvement of endothelial function, macromolecular colloid liquid applications, and continuous blood purification treatment. Systematic understanding of the pathological mechanism, clinical manifestations and staging, diagnosis and treatment of the CLS has a guiding value.
An Easy-to-Use 3D Visualization System for Planning Context-aware Applications in Smart Buildings
Jun-Ming Su
Lecture Notes in Engineering and Computer Science , 2012,
Abstract:
A Tentative Exploration into the Features of the English Corner at Renmin University of China
Tiping Su,Jun Wu
International Education Studies , 2009, DOI: 10.5539/ies.v2n4p99
Abstract: This paper has investigated the distinctive features of the English Corner at Renmin University of China. The popularity of the English Corner at RUC is firstly attributed to its physical advantage: the location of the university ensuring convenient transportation; the location of the English Corner easy to be found; and the timing on Friday evening without duration limit. And its weak points and problems include: participants have difficulties in finding an ideal matching partner and suitable topics to discuss; though seemingly more than other English Corners, the foreigners joining it are still fewer than the participants have expected.
Research on the Development of the Recycle Treatment Industry of the Municipal Solid Wastes under the Background of China’s Urbanization
Yongzhuan Su,Jun Lv
International Journal of Business and Management , 2009, DOI: 10.5539/ijbm.v3n7p60
Abstract: The recycle treatment of the municipal solid wastes (MSW) has become an integrated part of the development of recycle economy, it not only helps to alleviate the ecological environment problems brought by a large number of the MSW in the fast development of urbanization in China, but also can obtain urban economic development and some resources which are necessary to residents' life through various kinds of recycle treatment measures. Based on the urbanization development and current situation of the MSW’s disposal in China, it have analysed the developing prospect of the recycle treatment industry of the MSW in China, and have structured the social supporting system with three parties’ participation which include government, enterprises and residents, so as to promote the development of recycle treatment industry of the MSW in China.
Lorentz-Covariant Quantization of Massless Non-Abelian Gauge Fields in The Hamiltonian Path-Integral Formalism
Jun-Chen Su
Physics , 2000, DOI: 10.1088/0954-3899/27/7/309
Abstract: The Lorentz-covariant quantization performed in the Hamiltonian path-integral formalism for massless non-Abelian gauge fields has been achieved. In this quantization, the Lorentz condition, as a constraint, must be introduced initially and incorporated into the Yang-Mills Lagrangian by the Lagrange undetermined multiplier method. In this way, it is found that all Lorentz components of a vector potential have thier corresponding conjugate canonical variables. This fact allows us to define Lorentz-invariant poisson brackets and carry out the quantization in a Lorent-covariant manner. Key words: Non-Abelian gauge field, quantization, Hamiltonian path-integral formalism, Lorentz covariance.
Quantization of The Electroweak Theory in The Hamiltonian Path-Integral Formalism
Jun-Chen Su
Physics , 2000,
Abstract: The quantization of the SU(2)$\times $U(1) gauge-symmetric electroweak theory is performed in the Hamiltonian path-integral formalism. In this quantization, we start from the Lagrangian given in the unitary gauge in which the unphysical Goldstone fields are absent, but the unphysical longitudinal components of the gauge fields still exist. In order to eliminate the longitudinal components, it is necessary to introduce the Lorentz gauge conditions as constraints. These constraints may be incorporated into the Lagrangian by the Lagrange undetermined multiplier method. In this way, it is found that every component of a four-dimensional vector potential has a conjugate counterpart. Thus, a Lorentz-covariant quantization in the Hamiltonian path-integral formalism can be well accomplished and leads to a result which is the same as given by the Faddeev-Popov approach of quantization.
Alternative Formulation of The Quantum Electroweak Theory
Jun-Chen Su
Physics , 2000,
Abstract: The quantization of the electroweak theory is performed starting from the Lagrangian given in the so-called unitary gauge in which the unphysical Goldstone fields disappear. In such a Lagrangian, the unphysical longitudinal components of the gauge fields and the residual gauge degrees of freedom are naturally eliminated by introducing the Lorentz gauge condition and the ghost equation. In this way, the quantum theory given in $\alpha $-gauge is perfectly established in the Lagangian formalism by the Faddeev-Popov approach or the Lagrange multiplier method in the framework of SU(2)$\times $U(1) gauge symmetry. The theory established is not only simpler than the ordinary R$_\alpha -$gauge theory, but also explicitly renormalizable. The unitarity of the S-matrix is ensured by the $\alpha -$limiting procedure proposed previously. Especially, it is shown that the electroweak theory without involving the Higgs boson can equally be formulated whitin the $SU(2)\times U(1)$ symmetry and exhibits good renormalizability. The unitarity of such a theory may also be guaranteed by the $\alpha $-limiting procedure.
Massive Gauge Field Theory Without Higgs Mechanism IV. Illustration of Unitarsity
Jun-Chen Su
Physics , 1998,
Abstract: To illustrate the unitarity of the massive gauge field theory described in the foregoing papers, we calculate the scattering amplitudes up to the fourth order of perturbation by the optical theorem and the Landau-Cutkosky rule. In the calculations, it is shown that for a given process, if all the diagrams are taken into account, the contributions arising from the unphysical intermediate states included in the longitudinal part of the gauge boson propagator and in the ghost particle propagator are completely cancelled out with each other in the S-matrix elements. Therefore, the unitarity of the S-matrix is perfectly ensured.
059

Massive Gauge Field Theory Without Higgs Mechanism Massive Gauge Field Theory Without Higgs Mechanism III. Proof of Renormalizability
Jun-Chen Su
Physics , 1998,

Abstract: ~It is shown that the quantum massive non-Abelian field theory established in the former papers is renormalizable. This conclusion is achieved with the aid of the Ward-Takahashi identities satisfied by the generating functionals which were derived in the preceding paper based on the BRST-symmetry of the theory. By the use of the Ward-Takahashi identity, it is proved that the divergences occurring in the perturbative calculations for the massive gauge field theory can be eliminated by introducing a finite number of counterterms in the effective action. As a result of the proof, it is found that the renormalization constants for the massive gauge field theory comply with the same Slavnov-Taylor identity as that for the massless gauge field theory. The latter identity is re-derived from the Ward-Takahashi identities satisfied by the gluon proper vertices and their renormalization.
Quantization of Massive Non-Abelian Gauge Fields in The Hamiltonian Path Integral Formalism
Jun-Chen Su
Physics , 1998,
Abstract: It is argued that the massive non-Abelian gauge field theory without involving Higgs bosons may be well established on the basis of gauge-invariance principle because the dynamics of the field is gauge-invariant in the physical space defined by the Lorentz constraint condition. The quantization of the field can readily be performed in the Hamiltonian path-integral formalism and leads to a quantum theory which shows good renormalizability and unitarity.
Page 1 /51765
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.