China Institute of Water Resources and Hydropower Research

Henan Heng'an Power Co., Ltd.

Beijing Water Science and Technology Institute

Yellow River Conservancy Commission of the Ministry of Water Resources

Yu Wang

Tiejun Liu

Yifan Song

Denghua Yan

Baisha Weng

Tianling Qin

Yong Wang

Yajing Lu

Dabo Guo

Pin Liu

Zhanxia Kou

Chaofei Wang

Ping'an Zhang

Jianfei Wang

Yuezhi Liu

Jianying Guo

A field condition-based experimental apparatus for an ecological indicator of vegetation includes a plurality of isolation units arranged at intervals and an auxiliary mechanism detachably connected to the isolation unit. The isolation units include a plurality of isolation boxes arranged at intervals and respectively having a hollow structure, and a support frame respectively disposed at four corners of the isolation box. The auxiliary mechanism is detachably connected to the support frame. A soil layer is disposed in the isolation box. The experimental apparatus has a reliable structure and is easy to use. An appropriate number of isolation units are buried under field conditions based on experimental needs. Auxiliary mechanisms of different structures are mounted based on experimental conditions. This implements reliable detection of an ecological indicator of vegetation under the field conditions and effectively improves authenticity and reliability of detection results. The auxiliary mechanism facilitates disassembly and assembly.

Field condition-based experimental apparatus and method for ecological indicator of vegetation

Provided is a visual insulating spray lance for live working. A liquid guide tube and an air tube in a hollow operating rod are communicated with an inlet end of a spray nozzle; the operating rod is connected to a connecting rod and a display respectively through a fastener; a video optical transceiver fixedly arranged on the connecting rod is connected to the display through an optical fiber; the optical fiber is connected to an optical receiver, the optical receiver is connected to a chip for a video signal processor, the chip for a video signal processor is connected to a power divider having two output interfaces respectively connected to a display screen and a 4G communication module; a battery is connected to the optical receiver, the chip for a video signal processor, the power divider, the display screen, the 4G communication module, and a global positioning system (GPS) module.

Visual insulating spray lance for live working

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Zhengzhou, China

Yu Wang