The simulation of underwater acoustic information flow is an important way to research sonar performance and its engagement effectiveness in the ocean environment.This paper analyzes the significance of modeling an op...The simulation of underwater acoustic information flow is an important way to research sonar performance and its engagement effectiveness in the ocean environment.This paper analyzes the significance of modeling an open and sophisticated simulation software architecture by object-oriented method,and introduces the modeling processes and expression method of simulation architecture.According to the requirements of simulation system and the underwater acoustic information flow,the logical architecture of simulation software system is modeled by the object-oriented method.A use-case view captured the system requirements.The logical view shows the logical architecture of software system.The simulation software is decomposed into the loose coupling constituent parts by layering and partitioning the packages for maintainability.The design patterns enabled the simulation software to have good expansibility and reusability.The simulation system involving multi-targets and multi-sonar is developed based on the architecture model.Practices show that the model meets the needs for simulating an open and sophisticated system.展开更多
废塑料污染已经成为仅次于气候问题的第二大环境问题,废塑料的数量逐年递增。为了解决废塑料的环境污染问题,设计了废塑料化学升级制烯烃工艺的4条技术路线:废塑料气化经费-托合成制烯烃路线(PFTO),废塑料气化经一步法制烯烃路线(PZTO)...废塑料污染已经成为仅次于气候问题的第二大环境问题,废塑料的数量逐年递增。为了解决废塑料的环境污染问题,设计了废塑料化学升级制烯烃工艺的4条技术路线:废塑料气化经费-托合成制烯烃路线(PFTO),废塑料气化经一步法制烯烃路线(PZTO),废塑料气化经甲醇制烯烃路线(PMTO),废塑料裂解经加氢裂化制烯烃路线(PPTO)。为验证其可行性,对4条技术路线进行了化工流程模拟,采用技术经济性分析方法对比了4条技术路线的能源效率、经济性、CO_(2)排放量和碳原子利用效率等参数。模拟结果表明,PMTO路线的能源效率和CO_(2)排放量分别为55.60%和0.55 t CO_(2)/t烯烃,优于其他3条技术路线。在经济性能上,该路线具有产品成本低(4918.59 CNY/t)和内部收益率高(70.18%)的优势,总净现值是初始投资的5.98倍,且投资回报期为1.87年。因此,PMTO路线是一条可行的商业化技术路径。展开更多
文摘The simulation of underwater acoustic information flow is an important way to research sonar performance and its engagement effectiveness in the ocean environment.This paper analyzes the significance of modeling an open and sophisticated simulation software architecture by object-oriented method,and introduces the modeling processes and expression method of simulation architecture.According to the requirements of simulation system and the underwater acoustic information flow,the logical architecture of simulation software system is modeled by the object-oriented method.A use-case view captured the system requirements.The logical view shows the logical architecture of software system.The simulation software is decomposed into the loose coupling constituent parts by layering and partitioning the packages for maintainability.The design patterns enabled the simulation software to have good expansibility and reusability.The simulation system involving multi-targets and multi-sonar is developed based on the architecture model.Practices show that the model meets the needs for simulating an open and sophisticated system.
文摘废塑料污染已经成为仅次于气候问题的第二大环境问题,废塑料的数量逐年递增。为了解决废塑料的环境污染问题,设计了废塑料化学升级制烯烃工艺的4条技术路线:废塑料气化经费-托合成制烯烃路线(PFTO),废塑料气化经一步法制烯烃路线(PZTO),废塑料气化经甲醇制烯烃路线(PMTO),废塑料裂解经加氢裂化制烯烃路线(PPTO)。为验证其可行性,对4条技术路线进行了化工流程模拟,采用技术经济性分析方法对比了4条技术路线的能源效率、经济性、CO_(2)排放量和碳原子利用效率等参数。模拟结果表明,PMTO路线的能源效率和CO_(2)排放量分别为55.60%和0.55 t CO_(2)/t烯烃,优于其他3条技术路线。在经济性能上,该路线具有产品成本低(4918.59 CNY/t)和内部收益率高(70.18%)的优势,总净现值是初始投资的5.98倍,且投资回报期为1.87年。因此,PMTO路线是一条可行的商业化技术路径。
