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To address the high-risk characteristics and cascading propagation effects of accident consequences of major hazard installations in chemical parks, the framework of the safety risk prevention and control system was constructed and optimized. The advantages and disadvantages of safety risk analysis methods for major hazard installations and the evolution analysis methods of domino accident chains were systematically reviewed. The definition, classification, and efficacy evaluation indicators and models of safety barriers in chemical parks were summarized. A new classification pattern for safety barriers in chemical parks was proposed, encompassing physical facilities, automated technologies, operational procedures, and organizational management. Key assessment indicators for safety barriers in chemical parks were identified, namely effectiveness and reliability, and future research directions were outlined. The results show that the proposed system reveals the intrinsic mechanism of dynamic closed-loop control among safety risk analysis, domino accident chain evolution, and safety barriers for major hazard installations in chemical parks, thereby effectively overcoming the static limitations of traditional approaches. The new classification pattern and key assessment indicators provide a novel paradigm for quantifying the effectiveness of safety barriers in chemical parks.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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