Vol. 229 No. 06 (2024): NATURAL SCIENCES - ENGINEERING - TECHNOLOGY

NATURAL SCIENCE – ENGINEERING – TECHNOLOGY

• RESEARCH AND IMPLEMENTATION OF A POLAR COORDINATE LASER ENGRAVING MACHINE

  Nguyen Thi Thanh Binh, Nguyen Xuan Kien

  3 - 11

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• EMPIRICAL VERIFICATION OF REAL-TIME CHARGING RESPONSES FOLLOWING LONGTERM SCHEDULING FOR ELECTRIC TWO-WHEELER CHARGING STATIONS

  Nguyen Ngoc Van, Nguyen Huu Duc

  12 - 20

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• A NOVEL PARTICLE SWARM OPTIMIZATION GUIDED GENETIC TO THE DISTRIBUTION NETWORK RECONFIGURATION PROBLEM WITH AN OBJECTIVE FUNCTION OF MINIMUM OPERATING AND POWER OUTAGE COSTS

  Nguyen Tung Linh, Pham Vu Long

  21 - 31

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• FINE-GRAIN CLOCK GATING TECHNIQUE FOR A POWER SAVING 32-BIT PIPELINED MULTIPLIER IN ACTIVE MODE

  Vo Minh Huan, Pham Van Khoa

  41 - 50

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• DISTRIBUTION AND GEOCHEMISTRY OF LEAD IN TIDAL CREEK SEDIMENT IMPACTED BY ANTHROPOGENIC ACTIVITIES

  Le Quang Huy, To Thi Hong Chuyen, Nguyen Van Dong, Le Thi Huynh Mai, Nguyen Thanh Nho

  32 - 40

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• ENHANCING SIMULATION EFFICIENCY THROUGH MODAL TRUNCATION: A STUDY ON CONVECTION REACTION MODEL REDUCTION

  Nguyen Xuan Kien, Nguyen Thi Thanh Binh

  51 - 56

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• COMPREHENSIVE CHARACTERIZATION AND MODELING OF PLANAR ANISOTROPY IN STAINLESS STEEL SUS 304 FOR ACCURATE EARING PROFILE PREDICTION IN CIRCULAR CUP DRAWING PROCESSES

  Lai Dang Giang, Tran Duc Hoan, Pham Quoc Tuan

  65 - 74

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• IDEMPOTENT TRIANGULAR MATRICES OVER COMMUTATIVE SEMIRINGS

  Ha Chi Cong

  57 - 64

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• A NOTE ON THE COFINITENESS OF LOCAL COHOMOLOGY MODULES FOR A PAIR OF IDEALS

  Nguyen Van Hoang

  75 - 81

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• RESEARCH ON SUSTAINABLE DEVELOPMENT LEVEL: A CASE STUDY OF HAI PHONG AND QUANG NINH

  Dao Vu Phuong Anh, Pham Thi Thu Ha, Nguyen Hung Cuong

  82 - 93

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• STRUCTURAL PROPERTIES OF A SOL-GEL GENERATED BiFeO3 AND ITS PHOTOCATALYTIC ACTIVITY

  Truong Thi Thao, Nguyen Anh Vu, Chu Thi Anh Xuan, Lo Thi Hue, Nguyen Thi Khanh Van, Le Tien Ha, Nguyen Van Khien

  94 - 103

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• INVESTIGATION OF THE FLUORESCENCE QUENCHING DEPENDING ON EXCITATION WAVELENGTHS OF RHODAMINE B TO QUANTIFY SILVER NANOPARTICLES VIA THE INNER FILTER EFFECT

  Tran Thu Trang

  104 - 111

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• EVALUATION OF AMMONIUM (〖NH〗_4^+) ADSORPTION CAPACITY IN AQUEOUS SOLUTION BY HYDROCHAR DERIVED FROM PAPER SLUDGE

  Hoang Le Phuong

  112 - 120

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• REMOVAL OF DISPERSE RED 152 USING OZONE COMBINED WITH ULTRASOUND

  Nguyen Trong Nghia, Vu Thi Nu, Nguyen Dinh Vinh

  121 - 128

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• EFFECT OF GRINDING PARAMETERS ON SURFACE ROUGHNESS AND CUTTING FORCE WHEN SURFACE GRINDING 90CrSi STEEL BY HAI DUONG GRINDING WHEEL

  Luu Anh Tung, Nguyen Ngoc Thieu, Ha Toan Thang

  129 - 139

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• SEISMIC ANALYSIS OF AN OFFSHORE WIND TURBINE ON THE MONOPOLE FOUNDATION USING THE TWO-STEP METHOD

  Huynh Van Quan*, Le Huu Dat

  140 - 148

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• ENERGY AND ENERGY MODELS FOR TROPICAL ISLANDS IN VIETNAM

  Nguyen Hoang Phuong, Vo Viet Cuong, Nguyen Truong Phuc Khanh, Tran Quoc Cuong

  149 - 159

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• APPLICATION OF COMBINING DATA PREPROCESSING WITH WAVELET FILTERING FOR GCN-LSTM NETWORK WITH HHO OPTIMIZATION ALGORITHM IN LOAD FORECASTING MODEL

  Duong Ngoc Hung, Nguyen Minh Tam, Nguyen Tung Linh, Nguyen Thanh Hoan, Nguyen Thanh Duy

  160 - 169

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• ADSORPTION OF ARSENATE IN WATER BY MAGNETIC ZnFe2O4/α-Fe2O3/BIOCHAR NANOCOMPOSITES: ISOTHERM AND KINETIC STUDIES

  Nguyen Thi Luyen*, Bui Minh Quy

  170 - 177

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• RECOMMENDATION OF DEFLECTION CALCULATION FOR A REINFORCED CONCRETE BEAM SUBJECTED TO SHORT-TERM LOADS ACCORDING TO VIETNAMESE STANDARD TCVN 5574:2018: A COMPARISON WITH FINITE ELEMENT MODELING

  Tran Thanh Binh, Nguyen Quang Tung, Trinh Quang Thinh, Vuong Le Thang, Truong Hoai Chinh

  178 - 186

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• TREATMENT OF MALACHITE GREEN IN AQUEOUS SOLUTION USING CHITOSAN/PECTIN/SiO2 COMPOSITE

  Tran Nguyen Phuong Lan, Nguyen Le Hue Tran, Ly Kim Phung, Le Duc Duy, Nguyen Hong Nam, Tran Thi Minh Thu, Nguyen Trong Hong Phuc, Nguyen Minh Nhut

  187 - 194

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• STUDY OF DETECTION OF MELAMINE VIA SURFACE-ENHANCED RAMAN SCATTERING METHOD BASED ON SILVER NANOPARTICLES

  Tran Thu Trang

  195 - 201

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• CHARACTERIZATION OF SILVER NANOPARTICLES SUBSTRATES USING LASER INDUCED REDUCTION TOWARD SURFACE-ENHANCED RAMAN SPECTROSCOPY

  Dinh Nguyen Thanh Trung, Nghiem Thi Ha Lien, Nguyen Trong Nghia, Nguyen Tien Anh, Pham Van Nhat, Dinh Nguyen Thanh Trung, Nghiem Thi Ha Lien, Nguyen Trong Nghia, Nguyen Tien Anh, Pham Van Nhat

  202 - 210

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• STATIC ANALYSIS OF CORRUGATED PLATE MADE COMPOSITE MATERIAL BASED ON THE EQUIVALENT ORTHOGONAL PLATE MODEL

  Nguyen Dinh Ngoc*, Nguyen Thi Thu Linh

  211 - 219

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• SHORT-TERM FORECASTING OF ELECTRICAL LOAD DEMAND IN HANOI BASED ON EXTREME LEARNING MACHINE MODEL

  Nguyen Thi Hoai Thu*, Pham Nang Van, Ngo Van Khanh

  220 - 229

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• UTILISING PET PLASTIC AND GLASS WASTE IN MANUFACTURING OF MASONRY BRICKS

  Ho Viet Thang*, Nguyen Trong Cuong, Le Thi Thom, Vo Trung Kien, Ho Van Quan, Nguyen Thi Minh Xuan

  230 - 237

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• IN-SITU AND IN REAL TIME OBSERVATION OF PARTICULATE PROCESSES IN LACTIC FERMENTATION

  Le Minh Tam*, Bui Yen Nga, Nguyen Tan Dzung

  238 - 246

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• PHYTOREMEDIATION FOR LEAD-CONTAMINATED SOIL

  Luong Thi Thuy Van*, Hoang Thi Chanh, Cao Thi Phuong Thao

  247 - 258

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• A 551-ns SETTLING TIME OUTPUT CAPACITOR-LESS LDO WITH PROTECTION CIRCUITS

  Nguyen Thanh Long

  259 - 268

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• IMPROVEMENT OF VOLTAGE QUALITY OF POWER GRID INTEGRATED ANCILLARY SERVICES THROUGH WIND TURBINES AND STATCOM: CASE OF POWER GRID IN BINH THUAN

  Le Thi Minh Chau, Tran Viet Thanh, Duong Minh Quan, Le Xuan Chau, Van Trong Nhan, Tran Anh Tuan

  269 - 276

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• INVESTIGATION ON THERMAL PERFORMANCE OF ZEOLITE PARTICLES AS POTENTIAL INSULATORS

  Le Minh Tam*, Nguyen Van Quy

  277 - 287

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• AB-INITIO CALCULATION OF THE EXCITON LIFETIME OF INP AND CDSE QUANTUM DOTS

  Bui Thi Hanh

  288 - 294

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• AN INVESTIGATION ON STRUCTURE STIFFNESS OF 3D PRINTED FRAMES USING CONTINUOUS CARBON FIBERS

  Hoang Tien Dat

  295 - 301

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• COMPARISON STUDY OF PHOTOCATALYTIC DEGRADATION OF METHYLENE BLUE AND RHODAMINE B WITH ZnO NANORODS PREPARED BY USING THE HYDROTHERMAL METHOD

  Pham Van Tuan, Hoang Phi Hung, Nguyen Ngoc Vu, Le Tien Ha, Tran Thi Quynh Hoa, Vu Thi Tan, Tran Ngoc Khiem

  302 - 312

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• EFFECT OF THE COVID-19 ON SAIGON RIVER WATER QUALITY AND RESIDENT’S AWARENESS IN HO CHI MINH CITY

  Nguyen Xuan Tong, Le Thi Tuyen, Luu Tang Phuc Khang

  313 - 320

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• RESEARCH ON NONLINEAR FREE VIBRATIONS USING HOMOTOPY ANALYSIS METHOD

  Duong The Hung*, Nguyen The Thinh

  321 - 329

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• ANALYSIS OF CHEMICAL FRACTIONS AND EVALUATION OF COPPER (Cu) CONTAMINATED LEVELS IN SOIL SAMPLES OBTAINED FROM A Pb/Zn MINING SITE LOCATED IN HICH VILLAGE, THAI NGUYEN PROVINCE

  Vuong Truong Xuan*, Phan Thanh Phuong, Pham Thi Thu Ha

  330 - 339

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• PHOTOCATALYTIC PROPERTIES OF ZnO/CuO/Ag TERNARY COMPOSITES

  Do Duc Tho*, Hoang Xuan Truong, Luong Huu Phuoc

  340 - 347

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• CHEMICAL FRACTION ANALYSIS OF LEAD (Pb) IN SEDIMENT AT THE GOLD MINING AREA OF THAN SA COMMUNE, VO NHAI DISTRICT, THAI NGUYEN PROVINCE

  Phan Thanh Phuong, Vuong Truong Xuan

  348 - 356

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