The early involvement of test and evaluation can significantly reduce the cost of modifying issues and errors found in the later stages of aircraft development and design process.This paper presents a methodology for ...The early involvement of test and evaluation can significantly reduce the cost of modifying issues and errors found in the later stages of aircraft development and design process.This paper presents a methodology for aircraft mission effectiveness evaluation and design space exploration based on Virtual Operational Test(VOT),incorporating Virtual Open Scenario(VOS)and User in Scenarios(UIS)concepts.By employing modeling and simulation technologies in the early stages of aircraft development and design,a virtual environment can be constructed,allowing aircraft users to participate more closely and conveniently in the design process.Virtual tests conducted by users within the mission context provide data on mission effectiveness and critical user feedback.This paper outlines the main components of the virtual operational test process and related conceptual methods,and discusses an open support system framework that supports VOT.The effectiveness and adaptability of the method are demonstrated through two case studies:a beyond-visual-range air combat scenario and a helicopter ground attack scenario.These case studies demonstrate the evaluation of aircraft mission effectiveness and the sensitivity analysis and optimization of design and operational parameters based on VOT.展开更多
Having studied the property of compare matrix, this paper establishes a mathematical model of minimizing the sum of Euclidean norm (SEN) by means of the least square method. It is proved that the non linear program ...Having studied the property of compare matrix, this paper establishes a mathematical model of minimizing the sum of Euclidean norm (SEN) by means of the least square method. It is proved that the non linear program model can be transformed into linear a展开更多
目的评价MIKRO LA TEST系统对临床常见的葡萄球菌、肠杆菌科细菌的鉴定能力。方法将新鲜培养的细菌经形态学和/或初步生化鉴定后,制备规定浓度的菌液,接种相应板条,置35～37°C孵育24h。按要求加入生化试剂,判读并记录所有反应结果...目的评价MIKRO LA TEST系统对临床常见的葡萄球菌、肠杆菌科细菌的鉴定能力。方法将新鲜培养的细菌经形态学和/或初步生化鉴定后,制备规定浓度的菌液,接种相应板条,置35～37°C孵育24h。按要求加入生化试剂,判读并记录所有反应结果,经电脑分析后得菌株鉴定结果。结果58株细菌全部获得属水平的正确鉴定(占100%),除去无法鉴定到种的19株细菌,其余39株中有36株获得种水平的正确鉴定(占92.3%)。结论与法国生物梅里埃公司VITEK系列、API系统及美国DADE公司MICROSCAN系统相比,MIKRO LA TEST系统具有操作简便、成本低的特点,中小型医院可以用其完成临床常见细菌的鉴定。展开更多
文摘The early involvement of test and evaluation can significantly reduce the cost of modifying issues and errors found in the later stages of aircraft development and design process.This paper presents a methodology for aircraft mission effectiveness evaluation and design space exploration based on Virtual Operational Test(VOT),incorporating Virtual Open Scenario(VOS)and User in Scenarios(UIS)concepts.By employing modeling and simulation technologies in the early stages of aircraft development and design,a virtual environment can be constructed,allowing aircraft users to participate more closely and conveniently in the design process.Virtual tests conducted by users within the mission context provide data on mission effectiveness and critical user feedback.This paper outlines the main components of the virtual operational test process and related conceptual methods,and discusses an open support system framework that supports VOT.The effectiveness and adaptability of the method are demonstrated through two case studies:a beyond-visual-range air combat scenario and a helicopter ground attack scenario.These case studies demonstrate the evaluation of aircraft mission effectiveness and the sensitivity analysis and optimization of design and operational parameters based on VOT.
文摘Having studied the property of compare matrix, this paper establishes a mathematical model of minimizing the sum of Euclidean norm (SEN) by means of the least square method. It is proved that the non linear program model can be transformed into linear a
文摘目的评价MIKRO LA TEST系统对临床常见的葡萄球菌、肠杆菌科细菌的鉴定能力。方法将新鲜培养的细菌经形态学和/或初步生化鉴定后,制备规定浓度的菌液,接种相应板条,置35～37°C孵育24h。按要求加入生化试剂,判读并记录所有反应结果,经电脑分析后得菌株鉴定结果。结果58株细菌全部获得属水平的正确鉴定(占100%),除去无法鉴定到种的19株细菌,其余39株中有36株获得种水平的正确鉴定(占92.3%)。结论与法国生物梅里埃公司VITEK系列、API系统及美国DADE公司MICROSCAN系统相比,MIKRO LA TEST系统具有操作简便、成本低的特点,中小型医院可以用其完成临床常见细菌的鉴定。
