研究舰载机准确出动架次率问题,舰载机高峰出动架次率(SGR of Surge Operation)是美海军航母战斗群作战能力的关键因素,为获得给定条件下舰载机的高峰出动架次,针对舰载机高峰出动的真实流程,考虑到舰载机维修、保障、出动回收等作业以...研究舰载机准确出动架次率问题,舰载机高峰出动架次率(SGR of Surge Operation)是美海军航母战斗群作战能力的关键因素,为获得给定条件下舰载机的高峰出动架次,针对舰载机高峰出动的真实流程,考虑到舰载机维修、保障、出动回收等作业以及波次出动的具体情况,建立了利用蒙特卡洛(Moute Carlo)法的非稳态网络排队仿真模型。仿真程序能求得不同作业周期、不同周期类型时舰载机高峰出动架次,同时获得其它相关排队参数的实时数据。与美国海军实测数据的对比显示误差在可接受的范围之内,结果验证了仿真方法的有效性,可用于舰载机出动架次的计算中。展开更多
A case of pulmonary coinfection by Strongyloides stercoralis and Pneumocystis jiroveci has been detected in an AIDS patient treated in the Respiratory Intensive Care Unit of the Muniz Hospital.At diagnosis,the patient...A case of pulmonary coinfection by Strongyloides stercoralis and Pneumocystis jiroveci has been detected in an AIDS patient treated in the Respiratory Intensive Care Unit of the Muniz Hospital.At diagnosis,the patient presented cough with mucopurulent expectoration,dyspnea,fever,bilateral pulmonary infiltrates on the chest X-ray,negative bacilloscopy for acid fast bacteria and a CD4^+ T lymphocytes count of 52 cells/μ L.The microbiological diagnosis was achieved by microscopic observation of the respiratory secretions obtained by bronchoalveolar lavage,while the wet mount examination revealed rhabditiform and filariform larvae of the nematode and foamy exudates,pathognomonic of the pulmonary pneumocystosis.It was the unique case of this association among about 3 000 samples performed in our laboratory in the last 10 years and diagnosed by microscopy.Other complementary stains(a rapid modification of Grocott,Kinyoun and Giemsa) were applied to the smears after the diagnosis of mycotic and parasitary infections achieved by fresh microscopy.Both physicians and microbiologists should take into account the possible coexistence of respiratory pathogens in immunocompromised patients,such as those with AIDS.展开更多
文摘研究舰载机准确出动架次率问题,舰载机高峰出动架次率(SGR of Surge Operation)是美海军航母战斗群作战能力的关键因素,为获得给定条件下舰载机的高峰出动架次,针对舰载机高峰出动的真实流程,考虑到舰载机维修、保障、出动回收等作业以及波次出动的具体情况,建立了利用蒙特卡洛(Moute Carlo)法的非稳态网络排队仿真模型。仿真程序能求得不同作业周期、不同周期类型时舰载机高峰出动架次,同时获得其它相关排队参数的实时数据。与美国海军实测数据的对比显示误差在可接受的范围之内,结果验证了仿真方法的有效性,可用于舰载机出动架次的计算中。
基金Supported by Scientific Research Fund for Education Departmentof the the School of Medicine-Buenos Aires University(No:J500798759)
文摘A case of pulmonary coinfection by Strongyloides stercoralis and Pneumocystis jiroveci has been detected in an AIDS patient treated in the Respiratory Intensive Care Unit of the Muniz Hospital.At diagnosis,the patient presented cough with mucopurulent expectoration,dyspnea,fever,bilateral pulmonary infiltrates on the chest X-ray,negative bacilloscopy for acid fast bacteria and a CD4^+ T lymphocytes count of 52 cells/μ L.The microbiological diagnosis was achieved by microscopic observation of the respiratory secretions obtained by bronchoalveolar lavage,while the wet mount examination revealed rhabditiform and filariform larvae of the nematode and foamy exudates,pathognomonic of the pulmonary pneumocystosis.It was the unique case of this association among about 3 000 samples performed in our laboratory in the last 10 years and diagnosed by microscopy.Other complementary stains(a rapid modification of Grocott,Kinyoun and Giemsa) were applied to the smears after the diagnosis of mycotic and parasitary infections achieved by fresh microscopy.Both physicians and microbiologists should take into account the possible coexistence of respiratory pathogens in immunocompromised patients,such as those with AIDS.
