Dynamic infrared scene simulation is for discovering and solving the problems encountered in designing, developing and manufacturing infrared imaging guidance weapons. The infrared scene simulation is explored by usin...Dynamic infrared scene simulation is for discovering and solving the problems encountered in designing, developing and manufacturing infrared imaging guidance weapons. The infrared scene simulation is explored by using the digital grayscale modulation method. The infrared image modulation model of a digital micro-mirror device （DMD） is established and then the infrared scene simulator prototype which is based on DMD grayscale modulation is developed. To evaluate its main parameters such as resolution, contrast, minimum temperature difference, gray scale, various DMD subsystems such as signal decoding, image normalization, synchronization drive, pulse width modulation （PWM） and DMD chips are designed. The infrared scene simulator is tested on a certain infrared missile seeker. The test results show preliminarily that the infrared scene simulator has high gray scale, small geometrical distortion and highly resolvable imaging resolution and contrast and yields high-fidelity images, thus being able to meet the requirements for the infrared scene simulation inside a laboratory.展开更多
Realistic simulation of underwater scene is always difficult because of the special and complex vision effects in underwater space. Seabed is an important part of underwater environment. This paper describes the metho...Realistic simulation of underwater scene is always difficult because of the special and complex vision effects in underwater space. Seabed is an important part of underwater environment. This paper describes the methods for seabed scene simulation based on OpenGL. It includes construction of fluctuant terrain based on the random sinusoidal algorithm, simulation of seabed flicker effect by means of circular texture mapping and generation of turbidity effect by using fog techniques. For the application based on the leading high level 3D development environment - Vega, underwater scene simulation is still a difficulty since there is no module for it. Rased on the analysis of Vega software and the research on seabed scene simulation methods, a Vega extending module named 'Underwater Space' was created through developing module class and extending lynx interface. The module class was designed through developing DLL written in C + + . The Lynx was extended through developing keyword configure file, GUI configure file and lynx plug-in DLL. The problem that Vega can't simulate underwater space, is elementarily resolved. The results show that this module is efficient, easy using, and the seabed scene images are vivid.展开更多
In order to improve the English online courses teaching scene adaptability, optimize the online English teaching mode, improve the quality of English teaching, an English online course teaching platform is proposed ba...In order to improve the English online courses teaching scene adaptability, optimize the online English teaching mode, improve the quality of English teaching, an English online course teaching platform is proposed based on scene simulation. B/S client communication protocol is constructed in network transport layer, and the scene simulation model of English Online Course Teaching is established, online English teaching platform designed in this paper is constructed based on the sensing layer, network layer and application layer. A data processing center is constructed in the B/S structure and the network environment, Open Core kernel is used to realize the optimization of teaching model of English online courses, improve the teaching platform of online courses, and improve the scene adaptation ability. The test results show that the platform for online English teaching has better independent learning ability, the effectiveness of online English course teaching is better, test objects have higher satisfaction with English Online Course Teaching.展开更多
Creating proper 3D models plays an important pole in the development of scene simulation system based on multigen creator and Vega software. However, it is very difficult to construct complex structures by multigen cr...Creating proper 3D models plays an important pole in the development of scene simulation system based on multigen creator and Vega software. However, it is very difficult to construct complex structures by multigen creator. In this paper, an approach is proposed which is utilizing 3dsmax as assistant modeling software. 3D models developed in 3dsmax could be saved in 3ds format and then imported into multigen creator software. The models are revised and then saved in fit format by creator. For reducing model＇s data, simplification strategy is proposed. The problem of constructing complex models in creator is solved smoothly. In the development of digital rocket simulation project, the models constructed by this method have good visual effect, small size, and could be driven by Vega correctly.展开更多
Objective: to observe the effectiveness of scene simulation teaching method in surgical nursing practice. Methods: in September of 1950s, the residents of our hospital were randomly divided into two groups. The contro...Objective: to observe the effectiveness of scene simulation teaching method in surgical nursing practice. Methods: in September of 1950s, the residents of our hospital were randomly divided into two groups. The control group (n30) used traditional teaching method, while the research group (n30) used simulated situational teaching method. Results: the theoretical score of the research group was (87.58-5.78) and that of the control group was (73.12-4.86). The scores of professional skills and comprehensive accomplishment of the research group were higher than those of the control group, with statistical significance (p 0.05). The satisfaction of the study group and the control group was 96.7% and 73.3% respectively, with significant difference between the two groups (p 0.05). Conclusion: scene simulation teaching method in surgical nursing practice can effectively improve students assessment results, help students to master the corresponding nursing skills, and has the value of popularization and application.展开更多
Objective: explore the significance of MDT combined with scenario simulation teaching in the training and teaching of intensive care medicine residents. Method: experimental control method was used in this study. Eigh...Objective: explore the significance of MDT combined with scenario simulation teaching in the training and teaching of intensive care medicine residents. Method: experimental control method was used in this study. Eighty-one physicians who received standardized resident training in the department of critical care medicine of our hospital from September 2019 to December 2020 were selected as the research subjects. Among them, 46 physicians who participated in the standardized training of critical care medicine from September to December 2020 were assigned to the experimental group. MDT combined with scenario simulation teaching mode was used for teaching, including cardiopulmonary resuscitation, shock management process and dyspnea management process. Thirty-five physicians who participated in the training from September to December 2019 served as the control group, and compared with the same period of the previous year, the teaching effect was evaluated. Results: the reorganized students were better than the control group in clinical operation assessment, after-school active learning, satisfaction and teamwork ability, with statistical significance (P < 0.05). Conclusion: MDT combined with scenario simulation teaching mode has positive significance in the cultivation of operation ability, learning enthusiasm and teamwork ability of critical medicine residents.展开更多
基金co-supported by China Postdoctoral Science Foundation (20090461314)
文摘Dynamic infrared scene simulation is for discovering and solving the problems encountered in designing, developing and manufacturing infrared imaging guidance weapons. The infrared scene simulation is explored by using the digital grayscale modulation method. The infrared image modulation model of a digital micro-mirror device （DMD） is established and then the infrared scene simulator prototype which is based on DMD grayscale modulation is developed. To evaluate its main parameters such as resolution, contrast, minimum temperature difference, gray scale, various DMD subsystems such as signal decoding, image normalization, synchronization drive, pulse width modulation （PWM） and DMD chips are designed. The infrared scene simulator is tested on a certain infrared missile seeker. The test results show preliminarily that the infrared scene simulator has high gray scale, small geometrical distortion and highly resolvable imaging resolution and contrast and yields high-fidelity images, thus being able to meet the requirements for the infrared scene simulation inside a laboratory.
基金the National Defense Pre-research Foundation(51404040203)
文摘Realistic simulation of underwater scene is always difficult because of the special and complex vision effects in underwater space. Seabed is an important part of underwater environment. This paper describes the methods for seabed scene simulation based on OpenGL. It includes construction of fluctuant terrain based on the random sinusoidal algorithm, simulation of seabed flicker effect by means of circular texture mapping and generation of turbidity effect by using fog techniques. For the application based on the leading high level 3D development environment - Vega, underwater scene simulation is still a difficulty since there is no module for it. Rased on the analysis of Vega software and the research on seabed scene simulation methods, a Vega extending module named 'Underwater Space' was created through developing module class and extending lynx interface. The module class was designed through developing DLL written in C + + . The Lynx was extended through developing keyword configure file, GUI configure file and lynx plug-in DLL. The problem that Vega can't simulate underwater space, is elementarily resolved. The results show that this module is efficient, easy using, and the seabed scene images are vivid.
文摘In order to improve the English online courses teaching scene adaptability, optimize the online English teaching mode, improve the quality of English teaching, an English online course teaching platform is proposed based on scene simulation. B/S client communication protocol is constructed in network transport layer, and the scene simulation model of English Online Course Teaching is established, online English teaching platform designed in this paper is constructed based on the sensing layer, network layer and application layer. A data processing center is constructed in the B/S structure and the network environment, Open Core kernel is used to realize the optimization of teaching model of English online courses, improve the teaching platform of online courses, and improve the scene adaptation ability. The test results show that the platform for online English teaching has better independent learning ability, the effectiveness of online English course teaching is better, test objects have higher satisfaction with English Online Course Teaching.
文摘Creating proper 3D models plays an important pole in the development of scene simulation system based on multigen creator and Vega software. However, it is very difficult to construct complex structures by multigen creator. In this paper, an approach is proposed which is utilizing 3dsmax as assistant modeling software. 3D models developed in 3dsmax could be saved in 3ds format and then imported into multigen creator software. The models are revised and then saved in fit format by creator. For reducing model＇s data, simplification strategy is proposed. The problem of constructing complex models in creator is solved smoothly. In the development of digital rocket simulation project, the models constructed by this method have good visual effect, small size, and could be driven by Vega correctly.
文摘Objective: to observe the effectiveness of scene simulation teaching method in surgical nursing practice. Methods: in September of 1950s, the residents of our hospital were randomly divided into two groups. The control group (n30) used traditional teaching method, while the research group (n30) used simulated situational teaching method. Results: the theoretical score of the research group was (87.58-5.78) and that of the control group was (73.12-4.86). The scores of professional skills and comprehensive accomplishment of the research group were higher than those of the control group, with statistical significance (p 0.05). The satisfaction of the study group and the control group was 96.7% and 73.3% respectively, with significant difference between the two groups (p 0.05). Conclusion: scene simulation teaching method in surgical nursing practice can effectively improve students assessment results, help students to master the corresponding nursing skills, and has the value of popularization and application.
文摘Objective: explore the significance of MDT combined with scenario simulation teaching in the training and teaching of intensive care medicine residents. Method: experimental control method was used in this study. Eighty-one physicians who received standardized resident training in the department of critical care medicine of our hospital from September 2019 to December 2020 were selected as the research subjects. Among them, 46 physicians who participated in the standardized training of critical care medicine from September to December 2020 were assigned to the experimental group. MDT combined with scenario simulation teaching mode was used for teaching, including cardiopulmonary resuscitation, shock management process and dyspnea management process. Thirty-five physicians who participated in the training from September to December 2019 served as the control group, and compared with the same period of the previous year, the teaching effect was evaluated. Results: the reorganized students were better than the control group in clinical operation assessment, after-school active learning, satisfaction and teamwork ability, with statistical significance (P < 0.05). Conclusion: MDT combined with scenario simulation teaching mode has positive significance in the cultivation of operation ability, learning enthusiasm and teamwork ability of critical medicine residents.
