Vol. 229 No. 10 (2024): NATURAL SCIENCES - ENGINEERING - TECHNOLOGY

NATURAL SCIENCE – ENGINEERING – TECHNOLOGY

• DEVELOPMENT OF A V-SHAPED ELECTROTHERMAL MICRO ACTUATOR FOR UNIDIRECTIONAL ROTARY MOTOR DRIVING

  Pham Hong Phuc, Nguyen Tien Dung, Hoang Trung Kien

  3 - 10

• THE CURRENT WATER ENVIRONMENT QUALITY STATE OF THE CAGE FISH FARMING AREA IN HOA BINH AND THAC BA LAKE

  Nguyen Minh Quan*, Phan Trong Binh, Nguyen Huu Nghia, Pham Thai Giang, Truong Thi My Hanh, Nguyen Duc Binh, Nguyen Thi Hanh, Le Thi May, Nguyen Thi Nguyen

  11 - 17

• CONFLICTING EFFECTS OF PEI GRAFTING ON THE ADSORPTION PROPERTIES OF ACTIVATED CARBON

  Pham Thi Thanh Thanh, Le Quynh Mai, Mai Xuan Dung

  18 - 25

• COMBUSTION SYNTHESIS AND OPTICAL PROPERTIES OF Eu3+, Al3+ CO-DOPED CeO2 PHOSPHOR

  Nguyen Thi Khanh Linh, Nguyen Van Hai, Le Tien Ha, Hoang Nhu Van

  26 - 32

• LEMONGRASS HYDROCHAR SYNTHESIZED BY HYDROTHERMAL METHOD IN KOH ENVIRONMENT FOR METHYLENE BLUE AND Ni (II) ION ADSORPTION

  Ngo Thi Giang, Le Thi Thu Uyen, Nguyen Thai Binh, Truong Thi Thao

  33 - 41

• EFFECT OF PRESSURE ON THE PROPERTIES OF TI POROUS MATERIALS FABRICATED BY SPARK PLASMA SINTERING METHOD

  Pham Van Hao, Nguyen Thi Hoang Oanh, Vu Thi Ngoc Minh, Nguyen Thi Nguyet, Pham Hung Vuong, Dang Quoc Khanh

  42 - 50

• EFFECT OF pH ON SIMULTANEOUS POTENTIAL ADSORPTION OF Pb, Cd AND Cr IN CONTAMINATED SOIL USING ZEOLITE

  Nguyen Thi Bich Hanh, Van Huu Tap, Dang Van Minh

  51 - 60

• THE IMPACT OF THE MASS IMBALANCE ON OPTICAL PROPERTIES OF EXCITON SYSTEMS IN THE CONDENSATION STATE

  Nguyen Thi Hau, Ho Quynh Anh, Do Thi Hong Hai

  61 - 67

• ENHANCE THE CU(II) ADSORPTION BY CROSS-LINKING PEI ON THE SURFACE OF SIO2

  Nguyen Thu Huyen, Mai Xuan Dung, Nguyen The Duyen, Do Thuy Tien

  68 - 75

• GREEN METHOD TO SYNTHESIS NANO METALLIC Cu/Ag USING LEMON PEEL EXTRACT

  Ho Phan Tan Sang, Le Anh Trung, Do Thi Hue

  76-83

• STUDY ON AMMONIUM ADSORPTION IN AQUEOUS SOLUTION USING Fe3O4/ZnO

  Vu Thi Thanh Huyen, Nguyen Thi Huyen, Nguyen Thanh Nam, Pham Quang Huy, Do Thuy Tien

  84 - 91

• AN APPLICATION OF SOIL ELECTRICAL CONDUCTIVITY MAPPING OF SOIL pH AND NDVI INDEXES IN SMALL-SCALE DURIAN ORCHARDS MANAGEMENT

  Ho The Anh, Luu Trong Hieu, Vo Quang Minh, Nguyen Chi Ngon

  92 - 99

• MODELLING AND STATIC ANALYSIS OF AUTOMOBILE WHEEL RIM USING FINITE ELEMENT ANALYSIS

  Tran Cong Chi

  100 - 106

• EVALUATING POLYPHENOL, FLAVONOID CONTENT AND ANTOXIDANT CAPACITY OF PURPLE STAR APPLE FERMENTATION (Chrysophyllum cainito)

  Do Tan Khang, Phan Thi Diem Trang, Nguyen Pham Thien Trang, Nguyen Pham Anh Thi

  107 - 113

• A SYNTHETIC METHOD FOR OPTIMAL EVALUATION OF DISTRIBUTED ENERGY SYSTEM

  Pham Thi Hong Anh

  114 - 122

• PLANNING AND OPTIMIZING INTEGRATED ENERGY SYSTEMS BASED ON ENERGY HUB

  Pham Thi Hong Anh*

  123 - 131

• RESEARCH AND SELECTION OF REACTIVE POWER CONTROL METHODS FOR LARGE SCALE SOLAR POWER SOURCE IN URBAN DISTRIBUTION NETWORK

  Vu Hoang Giang*, Nguyen Huu Duc

  132 - 141

• RESEARCH ON THE ABILITY OF AIR SUSPENSION SYSTEMS TO REDUCE DYNAMIC LOADS ON HEAVY TRUCKS

  Luu Duc Lich, Ngo Sy Dong

  142 - 149

• SYNTHESIS, CHARACTERISTICS, AND PHOTOCATALYTIC DEGRADATION OF ANTIBIOTICS IN WATER USING ZnO-Fe3O4-CHITOSAN COMPOSITE

  Bui Minh Quy*, Nguyen Thi Luyen

  150 - 158

• STUDY ON THE EFECTIVE REMOVERAL AMMONIUM FROM WATER OF H2O2 MODIFIED - BIOCHAR FROM COFFEE HUSK

  Nguyen Thanh Nam, Nguyen Thi Phuong Anh, Nguyen Thi Ngoc Anh, Pham Thuy Hong, Do Thuy Tien, Nguyen Thi Huyen

  159 - 166

• THE HIGHER TOPOLOGICAL COMPLEXITY OF BRAID ARRANGEMENTS

  Tran Hue Minh*, Nguyen Van Ninh

  167 - 172

• MANUFACTURE A DEVICE TO SURVEY E.M.F IN A COIL PLACED IN THE MAGNETIC FIELD OF A MAGNET

  Luu Thi Nhan*, Dao Van Thanh, Duong Vu Truong, Ngo Thi Hoa, Nguyen Van Hung, Nguyen Hung Minh

  173 - 180

• WEAK FERROMAGNETISM IN THE RHOMBOHEDRAL/ORTHORHOMBIC PHASE BOUNDARY OF Ti DOPED Bi0.86Dy0.14FeO3 CERAMICS

  Chu Thi Anh Xuan, Vu Van Khai, Chu Viet Ha, Nguyen Quang Hai

  181 - 188

• EFFECTIVENESS OF SOME ORGANIC AND INORGANIC AGENTS IN PREVENTING UVB

  Nguyen Thi Yen Mai

  189 - 195

• RESEARCH ON USING PHU THO KAOLINITE AS AN ADDITIVE FOR MANUFACTURING UREA-KAOLINITE SLOW-RELEASE FERTILIZER

  Chu Thi Nhan, Tran Quoc Toan

  196 - 204

• MODERNIZATION OF THE UNIVERSAL MEASURING MICROSCOPE MODEL UIM-21 FOR USE IN PRESICION MECHANICS

  Bui Duc Bien

  205 - 212

• EFFECT OF ALKALINE HYDROLYSIS FACTORS ON ANTI-BACTERIAL ACTIVITY OF SOLUBLE LIGNIN DERIVED FROM Annona Squmosa Linn PEEL

  Le Cong Tuan, Le Duy Khuong

  213 - 220

• DETECTING OF METHYLENE BLUE USING SURFACE ENHANCED RAMAN SCATTERING BASED ON STRUCTURE PLATINUM NANOPARTICLES

  Lai Tong Anh Kiet, Pham Thi Thu Viet, Vu Xuan Hoa, Tran Thu Trang, Pham Thi Nga, Pham Thi Thu Ha

  221 - 227

• STUDY ON THE ADSORPTION CAPACITY OF DIRECT RED 79 DYE ON ACTIVATED CARBON PREPARED FROM LONGAN SEEDS

  Vu Thi Hau

  228 -237

• SYNTHESIS AND CHARACTERIZATION OF Li2ZnSn2O6:Mn4+ PHOSPHORS BY USING SOLID–STATE REACTIONMETHOD

  Nguyen Van Quang, Chu Mai Huong, Hoang Quang Bac, Vu Thi Kim Thoa, Hoang Minh Tuan, Pham Thi Lan Huong

  238 - 245

• APPLYING ANSYS FLUENT SOFTWARE IN IMPROVEMENT OF THE TEMPERATURE FIELD OF LONGAN DRYER

  Do Huy Diep, Nguyen Van Binh, Le Thanh Trung, Nguyen Hoang Quan

  246 - 253

• INVESTIGATION OF IN VITRO ANTIOXIDANT AND ANTI-INFLAMMATORY ACTIVITIES OF ENDOPHYTIC BACTERIA IN Catharanthus roseus

  Tran Chi Linh, Ta Lam Tai, Nguyen Thi Kim Ngan, Vo Hoang Long, Tran Nguyen Kim Ngan, Ly Khoi Nguyen, Nguyen Tan Thanh, Huynh Van Truong

  254 - 261

• STUDYING THE EFFECT OF HEAT TREATING ENVIRONMENT ON THE STRUCTURE OF X42Cr13 STEEL FABRICATED USING FILAMENT 3D PRINTING TECHNOLOGY

  Trinh Van Trung, Nguyen Anh Son, Nguyen Van Duc, Dang Dinh Chinh, Pham Gia Khanh

  262 - 268

• SCIENTIFIC AND PRACTICAL APPLICATION OF LIVESTOCK SOLID WASTE COLLECTION, TREATMENT AND UTILIZATION FOR CROPS UNDER CIRCULAR AGRICULTURE

  Vo Huu Cong, Nguyen Duc Canh, Nong Huu Duong, Nguyen Xuan Hoa, Le Thi Thu Huong, Vu Ngoc Hieu, Pham Minh Hen, Nguyen Hoang Minh, Do The Van

  269 - 276

• A CIRCULAR BIOECONOMY APPROACH IN PHYTOREMEDIATION TECHNOLOGY FOR HEAVY METAL CONTAMINATED SOIL

  Luong Thi Thuy Van*, Hoang Thi Chanh

  277 - 288

• NGHIÊN CỨU ĐIỀU CHỈNH TỐC ĐỘ CHO BỘ ĐIỀU KHIỂN CHẾ ĐỘ TRƯỢT ĐỘNG CƠ PMSM QUA LUẬT ĐIỀU KHIỂN TRƯỢT MỚI

  Dang Quoc Du, Tran Thanh Tuyen, Bui Van Huy

  289 - 295

• PRINCIPAL COMPONENT ANALYSIS AND AN APPLICATION IN WINE DATA ANALYSIS

  Nong Quynh Van

  296 - 302

• BIOCHAR STORAGES CARBON AND REDUCES GREENHOUSE GAS EMISSION (CH4 and N2O)

  Nguyen Dat Phuong

  303 - 307

• A MIQP FORMULATION FOR OPTIMAL OPERATION OF SWITCHABLE CAPACITORS IN POWER DISTRIBUTION GRIDS WITH DISTRIBUTED GENERATION

  Ngo Thuy Nhung, Nguyen Huu Cam, Pham Nang Van

  308 - 317

• EFFICIENCY ASSESSMENT OF APPLYING PHOTOVOLTAIC SOLAR PANEL IN MORNING GLORY FARMING SYSTEM IN TRI TON DISTRICT, AN GIANG PROVINCE

  Pham Duc Thinh, Do Huy Thiep, Nguyen Kieu Bang Tam, Tran Van Thuy, Dang Thi Hai Linh, Pham Thi Thu Ha A, Doan Thi Nhat Minh, Pham Thi Thu Ha B

  318 - 326

• SYNTHESIS OF LANTHANUM BENZOATE COMPLEX AND INVESTIGATION OF THEIR CORROSION INHIBITION ABILITY ON ZINC SUBSTRATE

  Tran Minh Hoang, Pham Dieu Linh, Chu Thi Minh Le, Phan Tuan Anh, Pham Thu Thuy, Dam Xuan Thang, Nguyen Thuy Duong

  327 - 334

• CONTROL OF TEMPERATURE AND LIQUID LEVEL IN MIXING TANK USING FUZZY METHOD ON REAL MODEL

  Ngo Manh Tung, Bui Trong Lap, Do Thi Kim Thoa, Nguyen Hong Hanh, Cao Thi Nhu Quynh, Phi Hoang Nha

  335 - 343

• CÁC HỢP CHẤT LIGNAN TỪ LÁ LOÀI SYMPLOCOS COCHINCHINESIS

  Lê Thị Giang, Nguyễn Xuân Nhiệm, Ninh Khắc Bản, Nguyễn Thị Ánh Tuyết

  344 - 349

• STUDY ON APPLYING THE TMDLs METHOD TO CALCULATE THE TOTAL MAXIMUM DAILY LOAD OF POLLUTION COMPONENTS N, P, BOD FOR RIVER SEGMENTS WITH DIFFERENT WATER USE PURPOSE

  Bui Huy Hoang

  350 - 357

• IMPACT OF THERMAL TREATMENT ON THE STRUCTURE AND PROPERTIES OF COPPER OXIDE THIN FILMS DEPOSITED BY ATMOSPHERIC PRESSURE SPATIAL ATOMIC LAYER DEPOSITION

  Nguyen Ngoc Minh, Tran Vu Hung Anh, Ho Quoc Viet, Nguyen Duy Cuong, Nguyen Viet Huong

  358 - 366

• GREEN SYNTHESIS OF SILVER NANOPARTICLES USING PIPER CHAUDOCANUM STEM EXTRACT FOR DETECTION OF TRACE Fe3+ IN WATER AND ANTIBACTERIAL ACTIVITY

  Khieu Thi Tam, Cao Thanh Hai, Ha Xuan Linh

  367 - 375

• SYNTHESIS OF COPPER NANOWIRES BY HYDROTHERMAL METHOD

  Nguyen Thi Hong Nhung, Chu Thi Lan Huong, Luu Ba Hoang Anh, Nguyen Viet Ba, Nguyen Thi Lan, Nguyen Duy Cuong

  376 - 382

• STRUCTURE AND CHARACTERISTICS OF Er3+ DOPED ZrO2/CuO FOR PHOTOCATALYTIC DEGRADATION OF METHYLENE BLUE UNDER VISIBLE LIGHT

  Pham Van Huan

  383 - 390

• SYNTHESIS AND CHARACTERIZATION OF CARBON NANOPARTICLES USING THERMAL PLASMA

  Tran Van Huynh, Le Thi Hong Hiep, To Thanh Vu, Tran Thanh Tra, Nguyen Hoang Tung, Nguyen Thanh Tung

  391 - 398

• FAST INTEGRAL TERMINAL SLIDING MODE CONTROL FOR AN UNDERACTUATED QUADROTOR WITH THE EXTERNAL DISTURBANCE AND INPUT SIGNAL DELAY

  Dang Ngoc Trung*, Duong Quynh Nga

  399 - 406

• DISTURBANCE ESTIMATOR-BASED CONTROL FOR MANIPULATORS WITH MODEL UNCERTAINTY AND DISTURBANCE

  Nguyen Hoai Nam, Ha Luong Thanh Duc, Le Van Danh, Ngo Duc Minh, Nguyen Minh Anh, Nguyen Thanh Chien, Pham Ba Quang

  407- 412

• ECONOMIC RISK ASSESSMENT FOR THAC XANG HYDROPOWER PLANT TO SUPPORT DECISION MAKING ON FLOOD OPERATION

  Ha Van Thuy, Ha Ngoc Tuan

  413 - 420

• MULTIBAND AND BROADBAND METAMATERIAL ABSORBER BASED ON DISK-SHAPED RESONATORS IN VISIBLE REGION

  Tong Ba Tuan, Bui Huu Nguyen, Nguyen Thi Hau, Ho Quynh Anh, Vu Thi Hong Hanh, Vu Dinh Lam, Le Dac Tuyen

  421 - 427

• AUTOMATIC CONTROL SOLUTIONS FOR AGRICULTURAL SYSTEMS OF ARTIFICIAL LIGHTING AND HYDROPONIC HARVEST

  Le Tien Phong*, Vu Thi Huyen, Luong Thanh Tung, Nguyen Duc Duong, Hoang Minh Ngoc, Nguyen Thi Ngoc Han, Tran Thi Kim Giang

  428 - 435

• DESIGN OF UNDER ACTUATOR LOCK MECHANISM APPLICATION IN SECOND REVERSE MOTORCYCLE

  Pham Thanh Long*, Nguyen Hoang Ha

  436 - 440

• RESEARCH ON EVALUATING THE PERFORMANCE OF SPEED CONTROL OF SINGLE-PHASE ASYNCHRONOUS MOTOR IN VARIOUS WIDE-PULSE MODULATION MODES

  Le Duc Tiep, Nguyen Thi Thu Huong*, Ninh The Anh

  441 - 448

• EFFECTS OF Cu SPACER THICKNESS ON THE INTERLAYER EXCHANGE COUPLING AND MAGNETIC PROPERTIES OF SPIN VALVES WITH PERPENDICULAR ANISOTROPY BASED ON [Co/Pd] MULTILAYERED THIN FILMS

  Nguyen Thi Ngoc Anh, Pham Quang Ngan, Do Khanh Tung, Nguyen Thanh Huong, Vu Hong Ky, Nguyen Thi Viet Ha, Pham Thi Thuy Hang, Dinh Hung Manh

  449 - 455

• USING SECOND-ORDER CONE PROGRAMMING-BASED ITERATIVE METHOD FOR LOAD FLOW ANALYSIS IN MESHED POWER TRANSMISSION NETWORKS

  Do Minh Hong, Pham Nang Van*, Nguyen Thi Hoai Thu

  456 - 466

• FABRICATION OF ANTIBACTERIAL MATERIALS BASED ON COPPER (II) OXIDE/COPPER AND SILVER OXIDE

  Nguyen Quoc Dung, Hoang Phu Hiep, Ha Xuan Linh

  467 - 474

• INNOVATING METAL CUTTING PRACTICE MODEL BY ELECTRIC ARC METHOD USING VIRTUAL REALITY TECHNOLOGY

  Vu Duc Thai, Thipphavongxay Anousit, Nguyen Van Huan

  475 - 485

• ASSESSMENT OF THE STATE OF SURFACE WATER QUALITY IN CAU GIAY DISTRICT, HANOI CITY

  Dang Hoang Cuong, Pham Thi Thu Ha A, Pham Thi Thu Ha B

  486 - 494