• Study boltzman distribution function for ideal gas systemStudy boltzman distribution function for ideal gas system

    Abstract: Consider an ideal gas system consisting of a large number of particles. The nature of the macroscopic system could not be described in detail. It could only be described in terms of averages, i.e. only the mean values of the thermodynamic quantities characteristic of the medium of the macro system. The average values of the thermodynam...

    pdf7 trang | Chia sẻ: thanhle95 | Ngày: 09/07/2021 | Lượt xem: 567 | Lượt tải: 0

  • Determined conditions of laser field on acoustic phonon increasing in semiconductor blockDetermined conditions of laser field on acoustic phonon increasing in semiconductor block

    1. Introduction Phonon amplification by absorption of laser field energy is a subject extensively investigated in different structures [1,2,3,4,8]. The main results of these papers are that by absorption of laser field energy, the interaction of the laser field with electron can lead to the excitation of higher harmonics and the amplification o...

    pdf5 trang | Chia sẻ: thanhle95 | Ngày: 09/07/2021 | Lượt xem: 431 | Lượt tải: 0

  • Some main occurrences of crossed modulesSome main occurrences of crossed modules

    1. Introduction Crossed modules (over groups) were invented almost 70 years ago by J. H. C. Whitehead in his work on combinatorial homotopy theory [10]. Whitehead's ideas on crossed modules and their applications were developed and explained in the book by R. Brown, P. J. Higgins, R. Sivera [1]. Some generalisations of the idea of crossed modul...

    pdf7 trang | Chia sẻ: thanhle95 | Ngày: 09/07/2021 | Lượt xem: 589 | Lượt tải: 0

  • Semi-synthesis of some heterocyclic triterpene derivatives on the basis of allobetulinSemi-synthesis of some heterocyclic triterpene derivatives on the basis of allobetulin

    Abstract: Semi-synthesized products derived from natural compounds currently play an important role in the research and finding new substances. Allobetulin, obtained through a process of transformation from betulin, is compound extracted from the birch trees, could be used as the starting material for some transformation reactions. Some new deri...

    pdf7 trang | Chia sẻ: thanhle95 | Ngày: 09/07/2021 | Lượt xem: 460 | Lượt tải: 0

  • The exponential behavior and stabilizability of stochastic 2D G-navier-stokes equationsThe exponential behavior and stabilizability of stochastic 2D G-navier-stokes equations

    Definition 1.1. u t t ( ), 0  is said to be a weak solution of (1.2) if a) u t ( ) is Ft -adapted,Journal of Science Hong Duc University, E.2, Vol.7, P (95 - 106), 2016 99 b) u L T H L T V  (0, ; ) (0, ; ) g g 2 almost surely for all T > 0, the following equation holds as an identity in almost surely, for t   0, . As we are mainly interested...

    pdf12 trang | Chia sẻ: thanhle95 | Ngày: 09/07/2021 | Lượt xem: 496 | Lượt tải: 0

  • On non - Linear approximations of periodic functions of besov classes using greedy algorithmsOn non - Linear approximations of periodic functions of besov classes using greedy algorithms

    Received: 7 January 2016 / Accepted: 13 April 2016 / Published: May 2016 ©Hong Duc University (HDU) and Journal of Science, Hong Duc University Abstract: In the present paper, we extend the results of Dinh Dung [5] on non-linear n-term L q - approximation and non-linear widths to the Besov class SBp, where 1 , p q 0,  and  is a given function o...

    pdf12 trang | Chia sẻ: thanhle95 | Ngày: 09/07/2021 | Lượt xem: 456 | Lượt tải: 0

  • A study on multiplication of oncidium-sweet sugar by using cell tissue cultureA study on multiplication of oncidium-sweet sugar by using cell tissue culture

    Abstract: Orchid is a specious kind of flower that brings about high economic value to flower production and flower business. Production of Orchids in Vietnam has been limited to its development, especially production of Oncidium-Sweet Sugar Orchids. Research on a process of rapid multiplication of Oncidium-Sweet Sugar Orchids by using cell tiss...

    pdf7 trang | Chia sẻ: thanhle95 | Ngày: 09/07/2021 | Lượt xem: 492 | Lượt tải: 0

  • Towards the development of protein expression by inducible ecdysone systemTowards the development of protein expression by inducible ecdysone system

    Abstract: The ecdysone inducible system was generated for checking the toxicity of target gene which was transected into the cells. The transcription unit, modified ecdysone receptor (IND) was cloned into vector pcDNA-Dest40 to form the new inducible expression plasmid pDest40-IND via cloning technique. A clear band with size about 487bp of PCR ...

    pdf8 trang | Chia sẻ: thanhle95 | Ngày: 09/07/2021 | Lượt xem: 399 | Lượt tải: 0

  • On nearly prime submodulesOn nearly prime submodules

    1. Introduction and preliminaries In [10], weakly prime ideals in a commutative ring with non-zero identity have been studied. Many authors have studied the notion of weakly prime ideals in module theory. In particular, many properties of weakly prime submodules have been introduced by M. Behboodi and H. Koohi in [11]. In this paper, we introdu...

    pdf6 trang | Chia sẻ: thanhle95 | Ngày: 09/07/2021 | Lượt xem: 485 | Lượt tải: 0

  • Quantitative analysis of fresh tomatoes (Solanum lycopersicum) for trace of pesticide residues from markets in Peshawar, Pakistan, using High Performance Thin Liquid Chromatography techniqueQuantitative analysis of fresh tomatoes (Solanum lycopersicum) for trace of pesticide residues from markets in Peshawar, Pakistan, using High Performance Thin Liquid Chromatography technique

    ABSTRACT Background: Vegetables and fruits are vital constituents of human diet, as it provides necessary minerals and nutrients to human body to carry out biological reactions and provide protection against various diseases and injuries. Solanum lycopersicum (tomato) is consider as cash crop in Asian countries and are fine source of vitamin C,...

    pdf7 trang | Chia sẻ: thanhle95 | Ngày: 09/07/2021 | Lượt xem: 457 | Lượt tải: 0