Research report: "The propagation of ultrashort pulses Keer environment " doc

... for propagation process of ultrashort laser pulses (in fs) in a medium have been the subject of the intensive research in the last few years [1, 3, 9, 12]. Because of special properties of these ... 47 PROPAGATION EQUATION FOR ULTRASHORT PULSES IN KERR MEDIUM Dinh Xuan Khoa (a) , Nguyen Viet Hung (b) Abstract. In this article, we investigated propagation o...

Ngày tải lên: 23/07/2014, 14:21

... of the team’s victory Also, the of phrase can be used to express the subject or object relation: The bus arrived the arrival of the bus Someone imprisoned the murderer the imprisonment of ... in the city council, a love story, etc. Another class of pre-modifiers is the type of denominal adjective often meaning “consisting of , “involving”, or “relating to”. These items must c...

Ngày tải lên: 23/07/2014, 14:20

... different directions. However, it has been observed in [3] that some of the defining properties of the metric are not needed in the proofs of certain metric theorems. Motivated by this fact, Hicks in ... weak compatibility of A and B implies that ABu = BAu, and then AAu = ABu = BAu = BBu. Let us show that Au is a common fixed point of A and B. Suppose that AAu = Au. In view of (1...

Ngày tải lên: 23/07/2014, 13:20

... α, δ > 0 r  i=1 x 2 i ( ∂f ∂x i ) 2 + n  i=r+1 ( ∂f ∂x i ) 2 ≥ C x  α ,  x < δ. Proof. ⇒ f ∈ ε(n) f ω Diff r (n) g ∈ ε(n) J ∞ (f) J ∞ (g) Φ ∈ Dif f(n) f = g ◦ Φ. (3.1) f ω Diff r (n)

Ngày tải lên: 23/07/2014, 13:21

... almost seventy-eight million hectares of forests, grasslands, rivers and lakes. It is an agency of the Department of Agriculture. The first is the threat of fire and fuel. This year, forest fires ... superstore. If you ever decide to visit Britain, you will need to know some of the basic rules of the sport. First of all, remember that you only need one person to make a queue....

Ngày tải lên: 07/11/2012, 14:58

... Differences between Action Research and Formal Research Topic Formal research Action Research Training needed by researcher Extensive On own or with consultation Goals of research Knowledge that ... overview of the study in which the rationale for the research, the research problem, the purposes, the research questions, the scope of the study, the research method, the...

Ngày tải lên: 07/11/2012, 14:58

... Quantification of 2-AP in pandan leaf: Content of 2 - AP in pandan leaf extracted by SDE was calculated as follows: Fig 2. Syst em of the SPME extraction Research on the Change of 2-AP and Other ... on 20g of brown rice with dichloromethane as solvent and collidine as internal standard. Duration of extraction was 30 minutes from apparition of the first drop of water...

Ngày tải lên: 28/08/2013, 16:28

... widely used in many parts of the world. In the tendency of integration of the global economy, English is one of the effective communicative tools for everybody. The role of English is considered ... to the knowledge of all teachers and students of English in their teaching and learning. In previous chapters, the review of literature with theoretical backgrounds of action...

Ngày tải lên: 07/09/2013, 13:58

... D06K52 Faculty of Foreign Language Ha Noi University of Technology The Situation of Learning English for Electrical Engineering of D06k52 Students in Faculty of Foreign Language, Ha Noi University of Technology ... Engineering of D06k52 Students in Faculty of Foreign Language, Ha Noi University of Technology" 1 Le Thi Bich Ngoc D06K52 Faculty of Foreign Language Ha...

Ngày tải lên: 13/12/2013, 12:15