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ISSN:    frecuency : 4   format : Electrónica

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Volume 23 Number 1 Year 2013

12 articles in this issue 

Tran Thanh Lam,Nguyen Chi Thao,Ho Hoang Tinh,Nguyen Thi Xinh,Nguyen Van Xuyen,Hoang Ngoc Long

The detailed analysis of the gauge model based on SU(3)C?SU(3)L?U(1)X\mathrm{SU}(3)_C\otimes \mathrm{SU}(3)_L \otimes \mathrm{U}(1)_X group with minimal content of lepton and Higgs is presented. It is shown that with just two Higgs triplets... see more

Pags. 1  

Ha Thanh Hung,Le Tho Hue,Hoang Ngoc Long

Ward-Takahashi identity is an useful tool for calculatingamplitude of scattering processes. In the high-order perturbative  theory of sQED,  propagator and vertex functions  contain  many high-order corrections. By using  War... see more

Pags. 11  

Dang Van Soa,Tran Dinh Tham

Photon - axion conversions in staticelectromagnetic fields of the size a×b×ca\times b \times c areconsidered in detail by the Feynman diagram methods. Thedifferential cross sections are presented and the numericalevaluations of the total cross section are... see more

Pags. 21  

Nguyen Cong Kien,Nguyen Anh Ky

In recent years, one of the new applications of the coherent state method was to con-struct representation of superalgebras and quantum superalgebras. Following this stream, we hada contribution to working out explicit representation of Uq[gl(2|1)]. Up to... see more

Pags. 29  

Nguyen Anh Tuan

We present a density-functional study of the inuence of solvents on the geometricstructure and the electronic structure of the low-spin and high-spin states of [Fe(ABPT)2 (C(CN)3)2] molecule with abpt = 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole, in ord... see more

Pags. 39  

Do Ngoc Chung,Le Trac Tuan,Tran Cong Hao,Do Ngoc Hieu,Nguyen Nang Dinh,Pham Hong Duong

White light emitting diodes (WLEDs) made by coating organic and inorganic hybrid composites on blue LED chips. Y3Al5O12:Ce (YAG:Ce) nano inorganic powder prepared by low-temperature Sol-Gel method exhibited broad green emission with the peak at 521 nm. Po... see more

Pags. 57  

Nguyen The Anh,Pham Thanh Son,Nguyen Thuy Van,Hoang Thi Hong Cam,Ngo Quang Minh,Bui Huy,Pham Van Hoi

We propose a novel principle of determination of fiber Bragg grating (FBG) wavelength shift which is impacted by a variation of physical parameters such as temperature, pressure and/or strain. In common case the wavelength shift of FBG was monitored by wa... see more

Pags. 75  

Bui Xuan Kien,Tran Hai Hung,Trinh Dinh Chien

A signal optical pulse propagating in the fiber is affected by many factors, one of the most important among them is dispersion. Under the dispersive influence, the optical pulse is reshaped, particulally, its duration is changed. Especiall... see more

Pags. 83  

Le Phuc Quy,Vu Thi Hanh Thu

TiO2_2 thin films are used for oxidation of organic radicals, reducing CO2_2, skin cancer treatment, decomposing halogen compounds in the air, breaking down surface contaminants, water treatment, biodegradable oil on the surface of the water, disinfect, ... see more

Pags. 89