作者机构：
Hunan Applied Technology University, Changde, Hunan, 415000, China;[Tan Y.; Qin J.; Liu Q.] College of Computer Science and Information Technology, Central South University of Forestry and Technology, Changsha, 410004, China;[Xiang X.] Hunan Applied Technology University, Changde, Hunan, 415000, China, College of Computer Science and Information Technology, Central South University of Forestry and Technology, Changsha, 410004, China
会议名称：
7th International Conference on Artificial Intelligence and Security, ICAIS 2021
会议时间：
19 July 2021 through 23 July 2021
关键词：
3D image;3D slice;Coverless image steganography
作者机构：
Hunan Applied Technology University, Changde, Hunan, 415000, China;[Xiang L.; Wang J.; Xiang X.] College of Computer Science and Information Technology, Central South University of Forestry and Technology, Changsha, 410004, China;[Sun J.; Qin J.] Hunan Applied Technology University, Changde, Hunan, 415000, China, College of Computer Science and Information Technology, Central South University of Forestry and Technology, Changsha, 410004, China
会议名称：
39th National Conference of Theoretical Computer Science, NCTCS 2021
作者机构：
[Yueyang, Yuan; Yuzheng, Liu] The School of Electromechanical Engineering, Hunan University, China;[Chao, He] Hunan Micomme Medical Technology Development Company Limited, China;[Hongyi, Yuan] Bangor College, Central South University of Forestry and Technology, China
会议名称：
2021 5th International Conference on Digital Technology in Education, ICDTE 2021
作者：
Yiqiang Wu;Yan Qing;Xianjun Li;Cuihua Tian;and Liu Liu
作者机构：
Central South University of Forestry and Technology,Changsha 410004,Hunan,China
会议名称：
第5届中国林业学术大会
会议时间：
20170505
会议地点：
北京
会议论文集名称：
第5届中国林业学术大会论文集
摘要：
Due to excellent mechanical and optical properties,cellulose nanofiber,which was deliberated from wood,bamboo and agricultural residuals,attracted increasing attention in the past decades.The key stage is to better understand how to prepare cellulose nanofiber easily and to create commercial products with high added-value.Numerous efforts have been dedicated to push forward the cellulose nanofiber and its nanocomposites into commercialization.This presentation will give a brief summarization of research development of cellulose nanofiber and nanocomposite.The research fields covered but not limited in preparation of cellulose nanofiber,nanofiber films for optical and energy storage materials,porous cellulose nanofiber materials as efficient catalyst and sorbents,and soft matter for functional materials.Furthermore,the commercialization of cellulose nanofiber in the local enterprise and future perspective will show in the presentation.
会议名称：
7th International Conference on Advanced Engineering and Technology (ICAET)
会议时间：
DEC 18-20, 2020
会议地点：
Incheon Natl Univ, ELECTR NETWORK
会议主办单位：
Incheon Natl Univ
会议论文集名称：
IOP Conference Series-Materials Science and Engineering
摘要：
This experiment deals with the influence of co-doping with oxygen and hydrogen and also annealing parameters, temperature and excitation power on the Er related photoluminescence (PL) of silicon. The ultimate goal is to optimise the PL intensity of the Er3+ internal transition to make at room-temperature luminescence possible. Silicon is a very inefficient light emitter, because of the low radiative recombination rate due to the indirect band gap. However, by adding optically active impurities such as erbium, Si can be made luminescent. Silicon is an ideal material for the fabrication of optical waveguides that are compatible with optical telecommunication technology at 1.54 mu m, because of its high transparency and high refractive index at this wavelength. Co-doping with oxygen and hydrogen can enhance the initial Er luminescence. To investigate the influence of oxygen and hydrogen on the diffusion process and the luminescence intensity, samples were doped with erbium, oxygen and hydrogen at different concentrations that were implanted both on Float Zone (FZ) and Czochralski (CZ) silicon wafers. In FZ silicon, the samples implanted with both oxygen and hydrogen showed the highest luminescence yield with a six times higher peak intensity as compared to samples implanted with only erbium and a two times higher peak intensity as compared to samples with erbium and oxygen, in accordance with previous results. However, identified by the line position and contrary to previous results on CZ-Si, the luminescence stems from an erbium-oxygen impurity complex and not from the so-called cubic centre. In CZ samples doped with erbium, oxygen and hydrogen show a 3 times higher intensity as compared to samples doped only with erbium and oxygen. Although the PL lines of the cubic centre are visible, they do not exhibit the strongest luminescence. In samples doped only with erbium and hydrogen and annealed at 900 degrees C, we observe luminescence from only the cubic centre. Although the appearance of the cubic centre in these samples is most likely due to out-diffusion of erbium in the absence of oxygen, hydrogen again enhances the luminescence intensity by a factor 2.
作者机构：
Hunan Applied Technology University, Changde, Hunan, 415000, China;[Xiang X.; Luo Y.J.; Tan Y.] College of Computer Science and Information Technology, Central South University of Forestry and Technology, Changsha, 410004, China;[Qin J.] Hunan Applied Technology University, Changde, Hunan, 415000, China, College of Computer Science and Information Technology, Central South University of Forestry and Technology, Changsha, 410004, China
会议名称：
7th International Conference on Artificial Intelligence and Security, ICAIS 2021
