Herein a novel Dyadic Green’s Function (DGF) is presented to calculate the field in ElectroMag-netic Compatibility (EMC) chamber. Due to the difficulty of simulating the whole chamber environment, the analysis combin...Herein a novel Dyadic Green’s Function (DGF) is presented to calculate the field in ElectroMag-netic Compatibility (EMC) chamber. Due to the difficulty of simulating the whole chamber environment, the analysis combines the DGF formulation and the FEM method, with the latter deals with the reflection from absorbers. With DGF formulation for infinite periodic array structures, this paper investigates electromagnetic field in chamber with truncated arrays. The reflection from the absorber serves as the virtual source contribut-ing to the total field. Hence the whole chamber field calculation can be separated from the work of absorber model set-up. Practically the field homogeneity test and Normal Site Attenuation (NSA) test are carried out to evaluate the chamber performance. Based on the method in this paper, the simulation results agree well with the test, and predict successfully the victim frequency points of the chamber.展开更多
肾移植是终末期肾病的首选治疗方法。尽管其优于透析,但持续存在的器官短缺仍然是一个主要缺点。从扩大标准捐献者(extended criteria donors,ECD)和心脏死亡捐献者(donated after circulatory death donors,DCD)中获得移植物可以增加...肾移植是终末期肾病的首选治疗方法。尽管其优于透析,但持续存在的器官短缺仍然是一个主要缺点。从扩大标准捐献者(extended criteria donors,ECD)和心脏死亡捐献者(donated after circulatory death donors,DCD)中获得移植物可以增加供体库的来源。尽管边缘移植物的移植表现出可喜的结果,但已有部分报道原发性无功能增加,移植物功能延迟以及移植物存活率降低。由静态冷保存(static cold storage,SCS)引起的冷缺血性损伤是预后不良的重要风险因素。展开更多
目的:探讨肾移植术后移植肾功能延迟恢复(delayed graft function,D G F)期间,依据D G F原因及患者特点不同,选取最佳的血液净化治疗措施。方法:总结分析47例D G F的临床资料、血液净化治疗措施及治疗效果。结果:经采用适宜的血液净化治...目的:探讨肾移植术后移植肾功能延迟恢复(delayed graft function,D G F)期间,依据D G F原因及患者特点不同,选取最佳的血液净化治疗措施。方法:总结分析47例D G F的临床资料、血液净化治疗措施及治疗效果。结果:经采用适宜的血液净化治疗,联合抗排斥、调整环孢素A浓度及肾脏保护等治疗措施。本组临床治愈38例,占80.85%,平均所需时间23d。显效5例,占10.64%,无效2例,占4.26%,恶化2例,占4.26%。结论:D G F期间适宜的血液净化治疗,有助于移植肾功能较快恢复,减少心衰、感染等并发症的发生。展开更多
基金Supported by the National Natural Science Foundation of China (No.50377001) and Tenth Five Year Key Items Foundation (No.2003SZ007) of Beijing Jiaotong Uni-versity.
文摘Herein a novel Dyadic Green’s Function (DGF) is presented to calculate the field in ElectroMag-netic Compatibility (EMC) chamber. Due to the difficulty of simulating the whole chamber environment, the analysis combines the DGF formulation and the FEM method, with the latter deals with the reflection from absorbers. With DGF formulation for infinite periodic array structures, this paper investigates electromagnetic field in chamber with truncated arrays. The reflection from the absorber serves as the virtual source contribut-ing to the total field. Hence the whole chamber field calculation can be separated from the work of absorber model set-up. Practically the field homogeneity test and Normal Site Attenuation (NSA) test are carried out to evaluate the chamber performance. Based on the method in this paper, the simulation results agree well with the test, and predict successfully the victim frequency points of the chamber.
文摘肾移植是终末期肾病的首选治疗方法。尽管其优于透析,但持续存在的器官短缺仍然是一个主要缺点。从扩大标准捐献者(extended criteria donors,ECD)和心脏死亡捐献者(donated after circulatory death donors,DCD)中获得移植物可以增加供体库的来源。尽管边缘移植物的移植表现出可喜的结果,但已有部分报道原发性无功能增加,移植物功能延迟以及移植物存活率降低。由静态冷保存(static cold storage,SCS)引起的冷缺血性损伤是预后不良的重要风险因素。
文摘目的:探讨肾移植术后移植肾功能延迟恢复(delayed graft function,D G F)期间,依据D G F原因及患者特点不同,选取最佳的血液净化治疗措施。方法:总结分析47例D G F的临床资料、血液净化治疗措施及治疗效果。结果:经采用适宜的血液净化治疗,联合抗排斥、调整环孢素A浓度及肾脏保护等治疗措施。本组临床治愈38例,占80.85%,平均所需时间23d。显效5例,占10.64%,无效2例,占4.26%,恶化2例,占4.26%。结论:D G F期间适宜的血液净化治疗,有助于移植肾功能较快恢复,减少心衰、感染等并发症的发生。
