Publications by authors named "Huiyong Niu"

Background: Fluorescence-guided lymphadenectomy (FLND) using indocyanine green (ICG) has emerged as a promising technique to enhance the accuracy of lymphadenectomy in rectal cancer surgery. Effective lymphadenectomy is crucial for improving prognosis in patients with advanced rectal cancer, but it remains technically challenging and controversial.

Methods: This prospective nonrandomized controlled study was conducted involving 129 patients underwent laparoscopic surgery, and 64 patients assisted by FLND.

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Mine fires caused by spontaneous coal combustion are major disasters in coal mines. The staged oxidation kinetic parameters of various coal samples at oxygen concentrations of 21 %, 15 %, 10 %, 5 %, and 3 % were analyzed using a programmed temperature testing system. Herein, the temperature increase rate of coal, the temperature difference between the furnace and coal, and the oxygen consumption characteristics were obtained.

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The oxidation characteristics and spontaneous combustion (SC) tendency of raw long-flame coal (RC), water-soaked 200-day coal (S), pre-oxidized water-soaked coal at 200 °C (OS), and pre-oxidized soaked coal at 300 °C (OS) in an oxygen-poor environment were investigated using a programmed warming system. The results show that pre-oxidation water-soaked treatment (PWT) promotes the coal-oxygen complex reaction and increases the rate of coal oxygen consumption (OCR) and the rate of carbon and oxygen compound production. The rate of CO and CO production of the water-soaked (WS) coal increased by 0.

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Article Synopsis
  • * Utilizing thermal analysis and experimental techniques like EPR and FTIR, it examines how increased temperatures lead to changes in coal's active groups, with heat release and functional group accumulation becoming more pronounced.
  • * Findings reveal that high temperatures (>160 °C) accelerate the breakdown of active free radicals, leading to a decrease in characteristic temperatures and heat release, while increasing the risk of spontaneous combustion in deeply mined areas.
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As mining continues to increase in depth, the problem of pre-oxidation coal (POC) spontaneous combustion (PCSC) in deep mines is coming to the fore. The effects of thermal ambient temperature and pre-oxidation temperature (POT) on the thermal mass loss (TG) and heat release (DSC) characteristics of POC were studied. The results show that the oxidation reaction process is found to be similar among the coal samples.

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