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A STUDY ON THE EVOLUTION OF GROUNDWATERPOLLUTANTS AND CAUSES OF FORMATION IN MANZHOULI 被引量:1
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作者 YAN Deng-hua, DENG Wei, YANG Jian-qiang, WANG Chun-mei, WU Pei-pei (Changchun Institute of Geography, the Chinese Academy of Sciences, Changchun 130021, P. R. China Jilin University, Changchun 130023, P. R. China Hefei Xingzhi School,Hefei 230011, P. R 《Chinese Geographical Science》 SCIE CSCD 2001年第1期92-96,共5页
Studying the evolution of groundwater pollutants and the causes of formation in Manzhouli is important and necessi- tous as the present water source of the production and living in Manzhouli is just groundwater and th... Studying the evolution of groundwater pollutants and the causes of formation in Manzhouli is important and necessi- tous as the present water source of the production and living in Manzhouli is just groundwater and the water crisis is staring Manzhouli people in the face. The evolution of pollutants in groundwater in Manzhouli was derived based on the continuously monitoring between 1989 and 1999. In total, the quality of groundwater in Manzhouli is good except that the content of F is exceeding the standard. The quality of groundwater varies seasonally. The content of pollutants in high water is higher than in the low water except pH and As. The yearly evolution shows the regime like the damp surge. The evolution of pH is inverse to NO3-N and F after 1999. The courses of formation of the evolution of the content of the pollutants in groundwater in Manzhouli are the supply of runoff, the feature of rock, the time the water being stayed in the layers and the chemical field. Being affected by the supply of ground surface and hydrogeology condition, the contents of pollutant are higher in the May than in September and the yearly evolution is undulance. In total, the pollutants in the deeper layers are less than in the upper layers. Explosion water in the deeper layers, using the techniques of cutting F and minifying the pollutants caused by human being are the sound countermeasures in Manzhouli. 展开更多
关键词 Manzhouli GROUNDWaTER POLLUTaNTS causes of formation
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A Study on Solid/Melt Interfaces and the Formation of<100> Texture in Solidified FCC Metals 被引量:21
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作者 D.Y.Li(Dept. of Mater. Sci & Eng., The Pennsylvania State University, University Park, PA 16802, USA )B.Debray and J.A.Szpunar(Dept. of Metall. Eng., McGill University, 3450 Uuiversity Street, Molitreal, PQ, Canada H3A 2A7) 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 1997年第6期457-461,共5页
The (100) texture of solidified fcc metals, caused by the preferential (100) dendrite growth, could be closeIy related to solid/melt interfaces which behave differently along different crystallographic orientation. Th... The (100) texture of solidified fcc metals, caused by the preferential (100) dendrite growth, could be closeIy related to solid/melt interfaces which behave differently along different crystallographic orientation. The stability and roughness of {111} and {100} solid/melt interfaces of fcc metals were investigated using a modified Temkin multi-layer model. It is demonstrated that {100}crystal/melt interface is more unstable and rougher than {111} interface. The effect of the stability of crystal/melt interface on the (100) texture formation in solidified fcc metals has been analysed and discussed. 展开更多
关键词 FCC a study on Solid/Melt Interfaces and the formation of<100 Texture in Solidified FCC Metals
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Oderly accumulation theory of shale system petroleum resource and its prospecting significance-A case study of Chang 7 Member of Yanchang Formation in Ordos Basin 被引量:5
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作者 Cui Jingwei Zhu Rukai +1 位作者 Li Shixiang Zhang Zhongyi 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2017年第S1期265-266,共2页
1 Introduction Shale formations bear abundant mineral resource and*unconventional petroleum resource,and the unconventional petroleum resource that contain in the shale formation should be integrated and researched.
关键词 In Oderly accumulation theory of shale system petroleum resource and its prospecting significance-a case study of Chang 7 Member of Yanchang formation in Ordos Basin
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Strike-Slip Faults and Their Control on Differential Hydrocarbon Enrichment in Carbonate Karst Reservoirs: A Case Study of Yingshan Formation on Northern Slope of Tazhong Uplift, Tarim Basin 被引量:1
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作者 Lü Xiuxiang WANG Yafang ZHANG Yanping 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第2期761-762,共2页
Objective Oil and gas are abundant in the Ordovician Yingshan Formation carbonate karst reservoirs on the northern slope of Tazhong uplift in the Tarim Basin, and have extremely complicated oil-gas-water distribution... Objective Oil and gas are abundant in the Ordovician Yingshan Formation carbonate karst reservoirs on the northern slope of Tazhong uplift in the Tarim Basin, and have extremely complicated oil-gas-water distribution, however. The difference in burial depth of the reservoirs between east and west sides is up to 1000 m. Water-bearing formations exist between oil- and gas-bearing formations vertically and water-producing wells are drilled between oil- and gas-producing wells. Macroscopically, oil and gas occur at low positions, while water occurs at high positiona on the northern slope of Tazhong uplift. The mechanism of differential hydrocarbon enrichment in heterogeneous reservoirs is by far not clarified, which has affected the efficient exploration and development of oil and gas fields in this area. 展开更多
关键词 a Case study of Yingshan formation on Northern Slope of Tazhong Uplift Strike-Slip Faults and their Control on Differential Hydrocarbon Enrichment in Carbonate Karst Reservoirs Tarim Basin
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Preliminary Research on the Characteristics and Causes of Formation of Seiches in the Bays
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作者 吴少华 王喜年 戴明瑞 《Marine Science Bulletin》 CAS 2000年第1期88-94,共3页
The Haizhou and Daya bays are chosen as basins for seiche research in this paper. By reducing the astronomical tide, we obtain residuals which include seiches from the original observed tide curve of two representativ... The Haizhou and Daya bays are chosen as basins for seiche research in this paper. By reducing the astronomical tide, we obtain residuals which include seiches from the original observed tide curve of two representative gauges of the Haizhou and Daya bays, with a time resolution of 1min. We have further made a statistical analysis of the characteristics of the seasonal distribution of seiches and by making a comparative analysis of the seiches and the corresponding weather system, studied the origin of seiches. The research findings are of important reference value for the ocean engineering design and the storm surge forecast. 展开更多
关键词 SEICHES cause of formation spectral analysis DaYa BaY Haizhou BaY SEaSONaL variation
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Experimental Study on the Mechanism for the Formation of Sn- bearing Granite in Northern Guangxi
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作者 Liang Xiangji, Qiao Li, Wang Fusheng and Yang Chonghui Institute of Geology, Chinese Academy of Geological Sciences, Beijing 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 1994年第2期169-182,228,共15页
Experimental results have proved that the Xuefengian Sn-bearing biotite granites were formed by remelting and recrystallization of the Proterozoic metamorphic rocks of the Sibao Group at 500× 105-2000× 105 P... Experimental results have proved that the Xuefengian Sn-bearing biotite granites were formed by remelting and recrystallization of the Proterozoic metamorphic rocks of the Sibao Group at 500× 105-2000× 105 Pa and 750-570℃ and further testified that the F- and B-bear-ing aqueous solution played an important part in decreasing the formation temperature of the rocks. The results tally with the reality of the field geology. The authors have thus brought to light the mechanism for the formation of the Sn-bearing biotite granites and expounded the significance of their formation in the crust dynamics of South China. 展开更多
关键词 experimental study Sn-bearing biotite granites formation mechanism northern Guangxi
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EPR STUDY OF THE FORMATION OF[Li^+O^-]ION PAIR ON Li-DOPED ZnO
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作者 Ting Lu YANG Liang Bo FENG Shi Kong SHEN Han Qin Wang State key Laboratory of Oxo Synthesis and Selective Oxidation,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000 《Chinese Chemical Letters》 SCIE CAS CSCD 1993年第3期251-254,共4页
In this letter the study of Li-doped zinc oxide by electron paramagnetic resonance method is described.A signal observed at g_=2.013,g_=1.955 on the degassed sample at 923K was designated to F_s^+ centers(surface oxyg... In this letter the study of Li-doped zinc oxide by electron paramagnetic resonance method is described.A signal observed at g_=2.013,g_=1.955 on the degassed sample at 923K was designated to F_s^+ centers(surface oxygen ion vacancies with a single trapped electron).When the sample was quenched from 1003K into liquid oxygen at 77K under 24 KPa O_2,[Li^+O^-] ion pairs valued at g_=2.026 and g=2.003 with superhyperfine constant a=2.0G,which resulted from ~7Li nucleus,formed at Li^+-substitutional site in ZnO lattice.A probable mechanism of [Li^+O^-]ion pair formation was proposed. 展开更多
关键词 LI EPR study of the formation of[Li ION PaIR ON Li-DOPED ZnO ZNO
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Analyzing the formation cause of Xidatan drinking mineral springs in island permafrost area on north slope of the Kunlun Mountains
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作者 SenQi Zhang JiJiao Fan +2 位作者 HongTao Wu Fan Jiang LiWei Tan 《Research in Cold and Arid Regions》 2010年第3期218-229,共12页
The replenishment source of Xidatan drinking mineral springs in island permafrost area on north slope of the Kunlun Mountains are mainly the melting water from the modern glaciers bottom, snow and ice melting water, a... The replenishment source of Xidatan drinking mineral springs in island permafrost area on north slope of the Kunlun Mountains are mainly the melting water from the modern glaciers bottom, snow and ice melting water, atmospheric precipitation, and surface water in Yuzhu Peak area on the Kunlun Mountains. This scenario is based on the survey of hydrogeology, water-conducting and water-controlling faults, and water chemistry, and on the EH-4 high-frequency electronic deep exploration. The original water recharges the deep groundwater at fracture zone of active normal faults F3 and F4 , then groundwater enriches at normal faults F2 and F2-1,2 , and then run northward. A water-rich triangle area is formed when groundwater reach the active reverse fault F1 . Groundwater then discharges through fracture zone of F1 , which is the major cause of the Xidatan mineral springs formation. 展开更多
关键词 Xidatan permafrost drinking mineral spring water cause of formation
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A^1HNMR STUDY ON THE FORMATION AND BREAKING OF INTRAMOLECULAR HYDROGEN BONDS OF BILIRUBIN IN CDCl_3-DMSO-d_6 BINARY SOLVENT
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作者 Qing Xiang GUO Zi Zhong LI Jun WANG You Cheng LIU National Laboratory of Applied Organic Chemistry and Department of Chemistry,Lanzhou University,Lanzhou 730000 《Chinese Chemical Letters》 SCIE CAS CSCD 1993年第3期247-250,共4页
The formation and breaking of intramolecular hydrogen bonds of bilirubin in CDCl_3-DMSO-d_6 binary solvent have been investigated by means of NMR spectroscopy.The chemical shifts of protons at dipyrrinone lactam C=O a... The formation and breaking of intramolecular hydrogen bonds of bilirubin in CDCl_3-DMSO-d_6 binary solvent have been investigated by means of NMR spectroscopy.The chemical shifts of protons at dipyrrinone lactam C=O and N-H,Pyrrole N-H,C-5,C-15 and methylene groups of 8,12-propionic acid side-chains changed markedly as a function of composition of the binary solvent.The hydrogen bond formation is dependent on the conformation of propionic acid side-chains. 展开更多
关键词 HNMR a1HNMR study ON the formation aND BREaKING of INTRaMOLECULaR HYDROGEN BONDS of BILIRUBIN IN CDCl3-DMSO-d6 BINaRY SOLVENT DMSO 亚砜
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A Contrastive Analysis of Chinese and Japanese Homographs and a Study on the Causes of Differences
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作者 YAO Ya-han 《Journal of Literature and Art Studies》 2022年第2期179-187,共9页
Since ancient times,China and Japan have had a close relationship in cultural exchanges,and there are words borrowed and influenced by each other in terms of words.Therefore,there are a large number of words in the la... Since ancient times,China and Japan have had a close relationship in cultural exchanges,and there are words borrowed and influenced by each other in terms of words.Therefore,there are a large number of words in the languages of China and Japan that are identical or similar in appearance,but differ in meaning or usage.As Learners of Japanese,it is necessary for us to make a comparative study of homomorphic words.This paper tries to analyze and discuss the characteristics and causes of homomorphic words based on the classification of homomorphic words from the perspective of lexicology. 展开更多
关键词 Chinese and Japanese homographs cause of formation CONTRaST
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Discussion on the Underlying Causes of the Modem Western Culture Comparative Study
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作者 He Wei 《International English Education Research》 2014年第4期86-88,共3页
The main underlying causes of the comparison study of Chinese and Western culture are mainly cultural psychology and social development. From the perspective of cultural psychology, cultural identity and the identity ... The main underlying causes of the comparison study of Chinese and Western culture are mainly cultural psychology and social development. From the perspective of cultural psychology, cultural identity and the identity of consciousness induced homeland is subjective motivation. From the development point of view of social reality, it is the inevitable response to objective requirements of dra-matic social transformation, cultural awareness promotion and cultural innovation. 展开更多
关键词 MODEM Comparative study of Chinese and Western Underlying causes
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A study on Holocene aeolian shell-clastic sandstonesalong the coasts of South China andthe analysis of its formation
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作者 Li Pingri Guangzhou Institute of Geography, Guangzhou 510070, China 《Acta Oceanologica Sinica》 SCIE CAS CSCD 1992年第3期413-423,共11页
The Holocene aeolian shell-clastic sandstones at 13 places along the coasts of Fujian, Guangdong and Hainan Provinces are studied in the following respects; describing their features from both macroscopic and microsco... The Holocene aeolian shell-clastic sandstones at 13 places along the coasts of Fujian, Guangdong and Hainan Provinces are studied in the following respects; describing their features from both macroscopic and microscopic views, listing their distributions, altitudes and forming ages, and discussing the nomenclatures of this kind of rock and its differences from beach rock. 展开更多
关键词 a study on Holocene aeolian shell-clastic sandstonesalong the coasts of South China andthe analysis of its formation
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A STUDY OF THE FORMATION OF LIVER METASTASIS AND ITS MECHANISM USING THE INTRASPLENIC INOCULATION OF CANCER CELLS
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作者 薛克勋 高进 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 1989年第1期11-15,共5页
In order to establish an animal model with hepatic metastasis intrasplenic inoculation of carcinoma cells from murine uterine cervical carcinoma (U14) was employed. Results showed a high incidence of hepatic metastasi... In order to establish an animal model with hepatic metastasis intrasplenic inoculation of carcinoma cells from murine uterine cervical carcinoma (U14) was employed. Results showed a high incidence of hepatic metastasis could be obtained through the intrasplenic inoculation of 1 × 106 carcinoma cells. Removal of the primary carcinoma through splenec-tomy at different intervals after intrasplenic inoculation proved that the hepatic metastatic mechanism was not due to mechanical pressure but occurred spontaneously. This experimental model provides a useful means for studying the mechanism and prevention of hepatic metastasis. 展开更多
关键词 a study of the formation of LIVER METaSTaSIS aND ITS MECHaNISM USING the INTRaSPLENIC INOCULaTION of CaNCER CELLS
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Clinical study on the effect of abdominal cavity chemotherapy by hot perfusion and sustained low losmatic pressure on malignant ascites caused by gastrointestinal tumors
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作者 杨光 刘长安 《中国组织工程研究与临床康复》 CAS CSCD 2001年第18期152-,共2页
关键词 Clinical study on the effect of abdominal cavity chemotherapy by hot perfusion and sustained low losmatic pressure on malignant ascites caused by gastrointestinal tumors
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Moral Perspective as Depicted in the Archetypes on Divine-Human Perspective of Dianshizhai Pictorial
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作者 REN Siying LIAO Chenxi 《Cultural and Religious Studies》 2024年第5期324-327,共4页
This article examines the archetypes related to the divine-human perspective in the Dianshizhai Pictorial and uses the basic theory of“Myth-Archetype Criticism”to analyze the concepts of moral perspective and the vi... This article examines the archetypes related to the divine-human perspective in the Dianshizhai Pictorial and uses the basic theory of“Myth-Archetype Criticism”to analyze the concepts of moral perspective and the view of cause and effect reflected in the text.It summarizes the interactive modes and various archetypes of cause and effect in three contexts:gods to humans,humans to gods,and humans to humans,explores the social reality and the relevant views of moral perspective and causality reflected in the illustrated magazine,and reveals the archetype foundation of the narrative of moral perspective retribution in Dianshizhai Pictorial in the three dimensions of psychology,literature,and society. 展开更多
关键词 Dianshizhai Pictorial divine-human perspective archetype study cause and effect retribution view of moral perspective
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On Language Variety and the Causes of Formation Between Males and Females
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作者 李军承 胡晓会 《承德职业学院学报》 2004年第2期20-22,共3页
本文通过大量实例列举了男女两性在语音、语调、词汇、语法及称谓等诸方面所存在的语言变异和多样性 ,分别从社会。
关键词 两性 语言变异 成因 社会语言学
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The prevention and cure study of sea water intrusion caused during the groundwate rresources exploitation in Daliancity
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《Global Geology》 1998年第1期18-19,共2页
关键词 the prevention and cure study of sea water intrusion caused during the groundwate rresources exploitation in Daliancity
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New Five-Year Program and Progress of China's Human Rights Cause——A study of the guidelines set by the Fifth Plenary Session of the Seventeenth Central Committee of the Communist Party of China
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作者 LI JUNRU 《The Journal of Human Rights》 2011年第2期2-5,共4页
The Proposal for the Twelfth Five-Year Plan for China's Economic and Social Development (2011-2015)(herein after referred to as the "Proposed Plan" for short) provides a complete range of guidelines for China'... The Proposal for the Twelfth Five-Year Plan for China's Economic and Social Development (2011-2015)(herein after referred to as the "Proposed Plan" for short) provides a complete range of guidelines for China's im-mediate and long-term development. 展开更多
关键词 work a study of the guidelines set by the Fifth Plenary Session of the Seventeenth Central Committee of the Communist Party of China New Five-Year Program and Progress of China’s Human Rights cause CPC
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Population attributable risks of cigarette smoking for deaths of all causes, all cancers and other chronic diseases among adults aged 40-74 years in urban Shanghai, China 被引量:6
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作者 Ying-Ying Wang Wei Zhang +6 位作者 Hong-Lan Li Jing Gao Yu-Ting Tan Yu-Tang Gao Xiao-Ou Shu Wei Zheng Yong-Bing Xiang 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 2015年第1期59-65,共7页
Objective: To evaluate the population attributable risks (PARs) between cigarette smoking and deaths of all causes, all cancers, lung cancer and other chronic diseases in urban Shanghai. Methods: In total, 61,480 ... Objective: To evaluate the population attributable risks (PARs) between cigarette smoking and deaths of all causes, all cancers, lung cancer and other chronic diseases in urban Shanghai. Methods: In total, 61,480 men aged 40-74 years from 2002 to 2006 and 74,941 women aged 40-70 years from 1997 to 2000 were recruited to undergo baseline surveys in urban Shanghai, with response rates of 74.0% and 92.3%, respectively. A Cox proportional hazards regression model was used to estimate relative risks (RRs) and 95% confidence intervals (95% CIs) of deaths associated with cigarette smoking. PARs and 95 % CIs for deaths were estimated from smoking exposure rates and the estimated RRs. Results: Cigarette smoking was responsible for 23.9% (95% CI: 19.4-28.3%) and 2.4% (95% Ch 1.6- 3.2%) of all deaths in men and women, respectively, in our study population. Respiratory disease had the highest PAR in men [37.5% (95% CI: 21.5-51.6%)], followed by cancer [31.3% (95% Ch 24.6-37.7%)] and cardiovascular disease (CVD) [24.1% (95% CI: 16.7-31.2%)]. While the top three PARs were 12.7% (95% CI: 6.1-19.3%), 4.0% (95% CI: 2.4-5.6%), and 1.1% (95% CI: 0.0-2.3%), for respiratory disease, CVD, and cancer, respectively in women. For deaths of lung cancer, the PAR of smoking was 68.4% (95% CI: 58.2- 76.5%) in men. Conclusions: In urban Shanghai, 23.9% and 2.4% of all deaths in men and women could have been prevented if no people had smoked in the area. Effective control programs against cigarette smoking should be strongly advocated to reduce the increasing smoking-related death burden. 展开更多
关键词 Population attributable risk (PaR) SMOKING mortality cohort study all causes death cancer death lung cancer
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Comparative study of HFACS and the 24Model accident causation models 被引量:7
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作者 Gui Fu Jia-Lin Cao +1 位作者 Lin Zhou Yuan-Chi Xiang 《Petroleum Science》 SCIE CAS CSCD 2017年第3期570-578,共9页
A comparative study is conducted to compare the theory and application effect of two accident causation models, the human factors analysis and classification system(HFACS) and the accident causation "2-4" model(2... A comparative study is conducted to compare the theory and application effect of two accident causation models, the human factors analysis and classification system(HFACS) and the accident causation "2-4" model(24 Model), as well as to provide a reference for safety researchers and accident investigators to select an appropriate accident analysis method. The two models are compared in terms of their theoretical foundations, cause classifications, accident analysis processes, application ranges, and accident prevention strategies. A coal and gas outburst accident is then analyzed using both models, and the application results are compared. This study shows that both the 24 Model and HFACS have strong theoretical foundations, and they can each be applied in various domains. In addition, the cause classification in HFACS is more practical, and its accident analysis process is more convenient. On the other hand, the 24 Model includes external factors, which makes the cause analysis more systematic and comprehensive. Moreover, the 24 Model puts forward more corresponding measures to prevent accidents. 展开更多
关键词 HFaCS accident causation "2-4" model Comparative study Unsafe acts External causes Coaland gas outburst accident
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