No. 6 (2019)

ARTICLES

• EXISTENCE AND UNIQUENESS OF SOLUTIONS TO A CLASS OF QUASILINEAR DEGENERATE PARABOLIC EQUATIONS

  Tran Thi Quynh Chi, Le Thi Thuy

  3

• LIOUVILLE TYPE THEOREM FOR STABLE SOLUTIONS TO ELLIPTIC EQUATIONS INVOLVING THE GRUSHIN OPERATOR

  Nguyen Thi Quynh

  12

• EXTENDED DEGREE OF RATIONAL MAPS

  Nguyen Dat Dang

  23

• PHASE TRANSITION IN THE LINEAR SIGMA MODEL OF THE TWO-COMPONENT MIXING SYSTEM

  Le Viet Hoa, Nguyen Tuan Anh, Dang Thi Minh Hue, Dinh Thanh Tam

  31

• THE PROCESS e e U    VIA VECTOR UNPARTICLE EXCHANGE IN THE RANDALL - SUNDRUM MODEL

  Nguyen Thi Hau, Dao Thi Le Thuy

  39

• BUILD THEORY OF NONLINEAR DEFORMATION FOR BCC AND FCC SUBSTITUTIONAL ALLOYS AB WITH INTERSTITIAL ATOM C UNDER PRESSURE

  Nguyen Nguyen Hoc, Nguyen Thi Hoa, Nguyen Duc Hien

  45

• STUDY ON STRUCTURAL PHASE TRANSITIONS IN DEFECTIVE AND PERFECT SUBSTITUTIONAL ALLOYS AB WITH INTERSTITIAL ATOMS C UNDER PRESSURE

  Nguyen Quang Hoc, Dinh Quang Vinh, Le Hong Viet, Ta Dinh Van, Pham Thanh Phong

  57

• EFFECT OF TEMPERATURE ON ELECTRICAL PROPERTIES OF YTTRIA-DOPED CERIA AND YTTRIA-STABILIZED ZIRCONIA

  Le Thu Lam, Vu Van Hung, Nguyen Thanh Hai

  68

• STUDY PHOTOCATALYST PROPERTY OF ZnO FOR METHYLENE BLUE

  Bui Hong Van, Pham Van Ben, Tran Minh Thi

  77

• THE ROLE-CHANGE OF Na+ IONS IN SODIUM SILICATE SYSTEM UNDER COMPRESSION

  Mai Thi Lan, Nguyen Van Hong, Nguyen Thu Nhan, Nguyen Thi Thanh Ha

  85

• A STRUCTURAL CHARACTERIZATION OF MoO3 MATERIAL PREPARED USING THREE DIFFERENT METHODS

  Pham Van Hai, Nguyen Hong Minh Chau

  93

• DENSITY FUNCTIONAL THEORY CALCULATIONS FOR FORMATION ENERGIES AND STRUCTURAL CHARACTERISTICS OF La OR Gd DOPED Bi2WO6 SYSTEMS

  Tran Phan Thuy Linh, Pham Van Hai, Nguyen Dang Phu, Duong Quoc Van, Nguyen Thi Thao, Tran Thien Lan

  102

• ELECTROMAGNETIC PROPERTIES OF MULTI-CONFIGURATION OF GOLD NANO CLUSTER ABSORBER IN INFRARED REGIME

  Tran Manh Cuong, Kieu Huyen Trang, Do Hoang Tung, Nguy The Cuong, Pham Van Dien

  108

• ANTIBACTERIAL CONSTITUENTS FROM THE ROOTS OF Stemona collinsae PLANT COLLECTED IN LAOS

  Tran Cong So, Hoang Thi Duyen, Vong Anatha Khamko

  115

• PREPARATION OF SOME BENZO[d]THIAZOLE-CONTAINING ACETOHYDRAZIDE DERIVATIVES

  Nguyen Thi Ngoc Mai, Tran Thi Phuong Anh, Pham Thi Thu May, Pham Phuong Thao, Nguyen Van Trang, Duong Quoc Hoan

  121

• EFFECTIVE RECOVERY AND PURIFICATION OF POLY(3-HYDROXYBUTYRATE) FROM A HALOPHILIC BACTERIUM BY CHEMICAL DIGESTION METHOD

  Doan Van Thuoc, Tran Thi Loan

  136

• ISOLATION OF SOME FLAVONOIDS FROM Vitex trifolia IN BACHMA NATIONAL PARK, THUA THIEN HUE, VIETNAM

  Nguyen Thi Kim Thoa, Nguyen Thi Thu Hien, Le Thi Phuong Thao, Vu Thi Minh Hong, Pham Tien Dung

  130

• EFFECT OF BITTER MELON (Momordica charantia Linn.) EXTRACT ON GROSS MORPHOLOGY AND WEIGHT OF SOME METABOLIC TISSUES IN MICE

  Le Ngoc Hoan, Do Thi Nhu Trang, Nguyen Phuc Hung, Ho Thi Hong Van, Chu Dinh Toi

  144

• AMPHIBIAN DIVERSITY AND ABUNDANCE FROM TWO STREAMS IN XUAN SON NATIONAL PARK

  Do Thi Yen, Le Trung Dung, Dao Van Thong

  151

• TUNING PID CONTROLLER BASES ON CHEMICAL REACTION OPTIMIZATION ALGORITHM

  Nguyen Ba Nghien, Nguyen Van Tinh

  161

• BAM: BORDER ADJUSTMENT METHOD IMPROVE THE EFFICIENCY OF IMBALANCED BIOLOGICAL DATA CLASSIFICATION

  Nguyen Thi Hong, Dang Xuan Tho

  173