Home / Archives / Vol. 40 No. 1 (2021) Vol. 40 No. 1 (2021) Published: 2021-01-01 Articles Research on Refractive Index Sensing Characteristics of Alternating Grating Fiber Composite Structure An Xueyao, Zhao Hongxia, Huang Shuying, Zhou Xiaoxia 1-6 Requires Subscription PDF Refractive index sensing properties of modified nano-titania modified long-period fiber gratings Zhao Mingfu;Nie Qinglin;Shi Shenghui;Liu Zhijiang;Wu Taojiang 7-13 Requires Subscription PDF Tone-invariant color image enhancement algorithm based on wavelet transform and histogram equalization Abduru Suli Osman; Eleminu Abulijan 14-18 Research on automatic segmentation algorithm of liver CT images based on Mask R-CNN Wei Xiaoqin;Yang Hanfeng;Chen Xiaowen 19-24 Requires Subscription PDF An Autofocus Algorithm Based on Clear Domain He Fan;Wang Shaozhi;Xu Xiaowen;Zhang Qin;Chen Kuo;Zhao Zhiqiang 25-34 Requires Subscription PDF Various Models Of High And Low Energy Ion Beams Irradiation And Mixing On Materials Anil K Das 35-40 Requires Subscription PDF Alum Catalyzed Green Synthesis Of Bis-Indolylmethanes In Polyethylene Glycol And Water Using Microwave Irradiation Dhruva Kumar,1 Rajesh Kumar2 & Jagir S Sandhu3 41-46 Requires Subscription PDF