Telefonaktiebolaget Lm Ericsson (publ)

China Shenhua Energy Company Limited

Hong Dong

Li Wang

Wenhui Zhang

Zhaohua Guo

Cundi Wei

Jianguo Han

Jianmin Zhang

Yanda Tong

Junzhou Chi

Yongwang Wang

Shaonan Xu

Sa Lv

Qingan Nan

Yaqiong Zhu

Various embodiments of the present disclosure provide method and apparatus for managing a resource in a wireless communication system. A method implemented at a network device may comprise allocating, based on respective quality of service, QoS, priority of a plurality of terminal devices, respective automatic repeat request, ARQ, indicator channels for the plurality of terminal devices; transmitting the allocation result to the plurality of terminal devices; and transmitting respective ARQ indicators on the allocated respective ARQ indicator channels to the plurality of terminal devices.

Method and apparatus for managing a resource in a wireless communication system

A vertical ring magnetic separator for de-ironing of coal ash comprises a rotating ring (), an inductive medium (), an upper iron yoke (), a lower iron yoke (), a magnetic exciting coil (), a feeding opening (), a tailing bucket () and a water washing device (). The feeding opening () is used for feeding the coal ash to be de-ironed, and the tailing bucket () is used for discharging the non-magnetic particles after de-ironing. The upper iron yoke () and the lower iron yoke () are respectively arranged at the inner and outer sides of the lower portion of the rotating ring (). The water washing device () is arranged above the rotating ring (). The inductive medium () is arranged in the rotating ring (). The magnetic exciting coil () is arranged at the periphery of the upper iron yoke () and the lower iron yoke () so as to make the upper iron yoke () and the lower iron yoke () to be a pair of magnetic poles for generating a magnetic field in the vertical direction, wherein the inductive medium () is layers of steel plate meshes, each steel plate mesh is woven by wires, and ridge-shape sharp corners are formed at the edges of the wires. A method for magnetically separating and de-ironing of coal ash, utilizes the vertical ring magnetic separator for de-ironing of coal ash. By adopting the vertical ring magnetic separator and the method of magnetic separation for de-ironing, the de-ironing efficiency is improved by at least 20%.

Vertical ring magnetic separator for de-ironing of pulverized coal ash and method using the same

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Beijing, China

Hong Dong