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  1. No Access

    Article

    Preparation of arsenic-antimony from arsenic alkali residue by calcification transformation-carbonthermal reduction

    Arsenic alkali residue is a hazardous solid waste typically produced during antimony smelting and its comprehensive utilization is relatively difficult, with problems such as low As and Sb recovery rates, inco...

    Qin Yi 易勤, Ao Gong 龚傲, Jia-cong Xu 徐家聪… in Journal of Central South University (2023)

  2. No Access

    Article

    Frequency–angle two-dimensional reflection coefficient modeling based on terahertz channel measurement

    太赫兹信道传播特性对太赫兹通信系统的设计、评估和优化至关重要。此外, 反射在信道传播中起着重要作用。本文基于大量的信道测量工作, 对太赫兹通道的反射系数进行研究。首先, 建立从220 GHz到320 GHz的太赫兹信道测深**台, 入射角范围从10°到80°。根据实测的传播损耗, 分别计算玻璃、瓷砖、木板、石膏板和铝合金五种建筑材料的频率和入射角的反射系数。研究发现, 由于缺乏与太赫兹相关的参数, 导致非金属材料的菲...

    Zhaowei Chang 常钊玮, Jianhua Zhang 张建华… in Frontiers of Information Technology & Elec… (2023)

  3. No Access

    Article

    Process and mechanism investigation on comprehensive utilization of arsenic-alkali residue

    Arsenic-alkali residue is a solid waste produced by the antimony smelting industry, which can pose a threat to the environment and human health. The common wet treatment process of arsenic-alkali residue has a...

    Ao Gong 龚傲, Xuan-gao Wu 吴选高, **-hui Li **金辉… in Journal of Central South University (2023)

  4. No Access

    Article

    A study of uplink and downlink channel spatial characteristics in an urban micro scenario at 28 GHz

    This paper presents an empirical study of the uplink and downlink azimuth angle of arrival (AoA) in an urban micro (UMi) scenario at 28 GHz. At present, most UMi measurements are conducted in the downlink and ...

    Tao Jiang 姜涛, Jianhua Zhang 张建华, Pan Tang 唐盼… in Frontiers of Information Technology & Elec… (2021)

  5. No Access

    Article

    Recovery of lead and silver from zinc acid-leaching residue via a sulfation roasting and oxygen-rich chlorination leaching method

    A large amount of acid-leaching residue is produced during the conventional Zn hydrometallurgy process, and this residue has a large concentration of a variety of valuable metals. The purpose of this study was...

    Rui-xiang Wang 王瑞祥, Yu-dong Yang 杨裕东… in Journal of Central South University (2020)

  6. No Access

    Article

    Oxygen pressure acid leaching of artificial sphalerite catalyzed by Fe3+/Fe2+ self-precipitation

    The mechanism of oxygen pressure acid leaching of sphalerite catalyzed by Fe3+/Fe2+ self-precipitation was investigated in this study. Artificial sphalerite was fabricated with varying amounts of iron content via...

    Lei Tian 田磊, Ao Gong 龚傲, Xuan-gao Wu 吴选高… in Journal of Central South University (2020)

  7. No Access

    Article

    Preparation and properties of ultra-fine chromium carbonization of high performance mechanical activation

    The preparation of hydroxyl chromium oxide by hydrogen reduction of disodium chromate and particulate hydroxyl mechanical activation features were studied. Then with self-made hydroxyl chromium as the raw mate...

    Lei Tian 田磊, Lijie Chen, Ting’An Zhang 张廷安… in Journal of Wuhan University of Technology-… (2018)