Volume 25, Number 2 June 2015 Contents Page Hoang Ngoc Long – Challenges in Particle Physics and 3-3-1 Models 97 Truong Trong Thuc, Le Tho Hue, Dinh Phan Khoi, and Nguyen Thanh Phong – One Loop Corrections to Decay τ → μγ in Economical 3-3-1 Model 113 Nguyen Quoc Khanh and Mai Thanh Huyen – Transport Properties of a Quasi-two-dimensional Electron Gas in InP/In1-xGaxAs/InP Quantum Wells: Correlation and Magnetic Field Effects 125 Vuong Son, Nguyen Duc Chien, Truong Thanh Toan, Doan Tuan Anh, Mai Anh Tuan, Luong Thi Thu Thuy, Pham Thi Kim Thanh – Development of Spray Pyrolysis System for Deposition of Nano-structure Materials 133 Tran Thi Thao, Vu Thi Hai, Nguyen Nang Dinh, and Le Dinh Trong – Optical Property and Photoelec- trical Performance of a Low-bandgap Conducting Polymer Incorporated with Quantum Dots Used for Organic Solar Cells 139 Bui Trung Ninh, Nguyen Quoc Tuan, Ta Viet Hung, Nguyen The Anh, and Pham Van Hoi – Influence of ASE Noise on Performance of DWDM Networks Using Low-power Pumped Raman Amplifiers 147 Ho Quang Quy, Nguyen Van Thinh, and Chu Van Lanh – Ultrasonic-controlled Micro-lens Arrays in Germanium for Optical Tweezers to Sieve the Micro-particles 157 Nguyen Tuan Khai, Le Dinh Cuong, Do Xuan Anh, Duong Duc Thang, Trinh Van Giap, Nguyen Thi Thu Ha, Vuong Thu Bac, and Nguyen Hao Quang – Assessment of Radioactive Gaseous Effluent Released from Nuclear Power Plant Ninh Thuan 1 under Scenario of Ines-level 5 Nuclear Accident 165 Nguyen Hoang Phuong Uyen, Gajovic-Eichelmann Nenad, Frank. F. Bier, and Ngo Vo Ke Thanh – Investigation of Immobilizing Antigens on Gold Surface by Potentiometric Measurements and Fluorescence Microscopic 173 Vo Thi Lan Anh, Ngo Tuan Ngoc, Doan Minh Chung, K. G. Kostov, and B. I. Vichev – Development of the C-band Radiometer and Its Utilization for Sea Surface Temperature Research in Vietnam 183 ERRATUM: Simulation for Neutron Transport in PWR Reactor Moderator and Evaluation for Proper Thickness of Light Water Reflector – [Nguyen Tuan Khai and Phan Quoc Vuong, Comm. Phys. 25(1) (2015) 91–96] 193