To adapt to the needs of public health emergency management and the changing talent requirements in the context of overall safety and emergency response，it is necessary to make appropriate adjustments to the public health emergency management talent development system. Firstly，the deficiencies and demands in cultivating public health emergency management talents were analysed. On this basis，the core elements in this training were clarified，including goals，types，modes，and curriculum development. Finally，the implementation path for cultivating these talents within the overall safety and emergency response was proposed. The results indicate the importance of updating educational concepts，implementing practical，experimental，and case-based teaching，integrating interdisciplinary training，enhancing collaborative and comprehensive skills，establishing a scientific evaluation system，and refining practical assessment methods to effectively enhance the construction of the public health emergency management talent development system.

In order to explore the innovative work safety control model empowered by information technology and intelligent technology，this study analyzed the characteristics of information flow in the safety control process from a perspective of safety informatics，and proposed a multi-level edge intelligent management and control mode. Based on SI-SB system safety model，the principles of safety decision lag and deviation in the safety management and control process were analyzed，and the idea of improving the performance of safety management and control system was proposed. Combined with the characteristics of safety organization management systems and the advantages of digital technologies，the foundation of digital technologies in enabling information perception and transmission，safety information interpretation，and safety behavior guidance was analyzed. And the pathways of digital technology in enabling digital perception，intelligent decision-making and multi-level control were analyzed. On this basis，the multi-level edge intelligent management and control mode for work safety with intelligence，agility，flexibility，and unity was proposed. Finally，the performances of responding with safety events were calculated and compared before and after the application of the digital control mode in the three types of scenarios: emergency，short-cycle control and long-cycle control. The results show that the proposed multi-level edge intelligent management and control mode can significantly improve the effectiveness of safety control.

In order to explore the similarities and differences，advantages and disadvantages between the definition of cause factors in LCM and the 24Model，a review of the definition of causes and results at various levels for both models was conducted. The definition content and its guidance role in safety practices，focusing on accident causation analysis，were compared. An empirical analysis was conducted using a coal mine gas explosion accident as an example to identify differences in the analysis results between the two models. The research shows that LCM is the first one-dimensional event sequence model that incorporates management factors into accident causation analysis. It provides clear definitions of cause factors at various levels and their logical relationships. However，LCM has issues with overlapping and repetitive definitions of causal factors and fails to reveal deeper accident cause factors such as guiding principles for safety work. 24Model，as a systematic accident causation model，predominantly defines various factors in terms of the organization. It describes the concepts of events，accidents，and safety，categorizing individual safety acts，safety capabilities，and organizational safety management systems，providing meanings and explanations. It explores organizational safety culture and reflects it with 32 elements. Both models' accident causation analysis methods are built on the definitions of cause factors at different levels and are applicable to their respective theoretical frameworks.

In order to explore the appropriate research object of safety science from a perspective of practice，based on the methods of logical analysis and deductive reasoning，six criteria were constructed to evaluate the research object of the discipline. And on the basis of analysing the presuppositions，advantages and disadvantages of 11 main views，it was argued that accident is the appropriate research object of safety science from the perspective of practice. The results show that the research object in practice should have the characteristics of uniqueness，clarity，generalization，comprehensiveness，maturity and deducibility. The main views can not meet these characteristics of the research object that should be met in practice. The proposal of a clear definition of accident solves the demand for the concept of general safety. The essential problem of safety science is accident prevention.

In order to explore the contagion mechanism and effect of unsafe behavior information in groups of construction workers，a theoretical model of the contagion mechanism of unsafe behavior information among construction workers was constructed based on social information processing theory，theory of planned behavior，and social contagion theory. In this model，information about workmates' unsafe behaviors was served as the independent variable，and behavioral cognitive factors (i.e. behavioral attitudes，subjective norms，and perceived behavioral control) and unsafe behavioral intentions were served as mediating variables. Through developing measurement scales and creating questionnaires to collect data，the theoretical model was empirically tested based on 271 valid samples using the analysis methods of confirmatory factor analysis and structural equation modeling. The results show that workmates' intentional unsafe behaviors and workmates' unsafe communication behaviors can induce new unsafe behaviors through six contagious pathways. Moreover，as a source of contagion，the contagion effect of workmates' intentional unsafe behaviors is greater than that of workmates' unsafe communication behaviors. Managers can effectively control the contagion effect of unsafe behavior information among construction workers by controlling contagion information sources and weakening infectious media.

In case of major security accidents，information disseminated wantonly and difficult to discern in terms of authenticity can easily cause negative social sentiments. This poses several issues to emergency rescue. Sentiment analysis，topic calculation，and the SEIR model were used to investigate online opinion simulation and control strategies for major security accidents. The CDBN-TCN-CRF sentiment analysis model was proposed by coupling the Convolutional Deep Belief Networks (CDBN)，temporal convolutional networks (TCN)，and conditional random fields (CRF). Then，the T-distributed Wasserstein autoencoder (TWAE) topic computation model was used to discern sentiment polarity，topic categories，race sentiment trajectory，and public attention focal points within the network discourse. Furthermore，the proposed SEIR model was used to predict online public opinion tendency and analyze the dissemination dynamics and their influencing factors. The results indicate that the coupling of CDBN-TCN-CRF sentiment analysis，TWAE topic computation，and SEIR model has a better prediction performance on network discourse analysis and trend analysis.

In order to explore the promotion path of civil aviation employees' willingness to share safety information，a multi-condition linkage model was constructed based on the theory of Person-Environment Fit，which presented the impact of individual characteristics and organizational environment on employees' willingness to share safety information. On the basis，model validation was carried out using fsQCA method based on 178 survey questionnaires. The results show that willingness to share safety information is not driven by a single condition，such as individual cognition level，job embeddedness，professional identity，leadership support，and safety culture，but rather the result of multiple conditions. There are three models for promoting higher levels of willingness to share safety information. The first is employee autonomy-driven model，which has as its core conditions high individual cognitive，high job embeddedness，and high professional identity. The second is the resonance-driven model，the core conditions of which are high individual cognitive，high professional identity，high support from leaders，and insufficient job embeddedness. The third is the leadership support-driven model，whose core conditions are high support from leaders and the absence of safety culture.

To investigate influences of common distracted driving behaviors on driving performance in the urban environment，three secondary tasks were designed. Sixteen young subjects were recruited. The driving tests were conducted under real conditions. Vehicle longitudinal and lateral driving parameters were measured. The driving performances under normal driving and distracted driving conditions were compared and analyzed，and the influences of driving age on these performances were also discussed. The results show that compared to the normal driving，in all 3 distracted conditions，the standard deviation of longitudinal acceleration and the standard deviation of lateral acceleration increase while vehicle speed decreases. This indicates that drivers compensate for driving performance by speed and maneuver while distracted. The mean speed and the mean longitudinal acceleration are significantly influenced by the talking task，while the standard deviation of speed and the mean lateral acceleration are significantly influenced by reading the advertisement (p<0.05). The standard deviation of speed is significantly higher for experienced drivers compared to novices in the phoning condition (p=0.021). During phoning and advertisement reading tasks，the mean lateral acceleration is significantly higher for experienced drivers compared to novices (p=0.003，p=0.004). This means the experienced drivers are less affected by distracting behaviors.

In order to investigate the visual load of drivers at the threshold zone of linear highway tunnels，five visual indicators of drivers were collected through the real vehicle test. A visual load evaluation model was developed by the Topsis improved factor analysis method，the visual load at different times and locations was analyzed，the evaluation criteria of driving comfort were proposed based on the constructed visual load curve，the generalization ability of the constructed load model was verified by using published data，and finally，the influence of visual indicators on visual load was investigated by sensitivity analysis. The results show that when the driver locates about -13 m to 55 m (12:00) and -10 m to 49 m (15:00) from the entrance，the visual load exceeds the boundary value (0.906)，indicating the driver's driving comfort and safety is extremely low. The visual load and closeness of the drivers near the entrance are much greater than those inside and outside the entrance，and the visual load and closeness at 18:00 are much lower than those at 12:00 and 15:00. The sensitivity parameters of the visual indicators are fixation duration，pupil area，fixation time，saccade range，saccade speed in descending order.

Mine tremors and rock bursts are hot，difficult，and bottleneck problems that need to be solved urgently in the mining field. In order to effectively control mine tremors and rock bursts，the definition and classification of mine tremors，the hypothesis of mine pressure and the prevention and control technologies of mine tremors and rock bursts were summarized. And the theory of roof-cutting and pressure-relief was reviewed. Then，its application in abandoned stope disposal and pressure unloading mining of medium-thick gold mines and gob-side entry retaining laneway of medium-thick and below coal mines were introduced，and its difference with 110 working method was compared. Based on this，the definition of mine tremors was given，and it was pointed out that the occurrence conditions of mine tremors are similar to those of rock bursts. Therefore，the controlled blasting and groove caving technology of a deep-buried hard roof plate was put forward for thick ore body mining. The summary shows that the technology of controlled blasting groove caving is still the main method to release and transfer high underground pressure in the prevention and control of mine tremors and rock bursts in the future，it can also simplify the "masonry beam" of deep-buried thick orebody into a spring rock beam bearing system.