To ensure flight safety,the complex network method is used to study the influence and invulnerability of air traffic cyber physical system(CPS)nodes.According to the rules of air traffic management,the logical couplin...To ensure flight safety,the complex network method is used to study the influence and invulnerability of air traffic cyber physical system(CPS)nodes.According to the rules of air traffic management,the logical coupling relationship between routes and sectors is analyzed,an air traffic CPS network model is constructed,and the indicators of node influence and invulnerability are established.The K-shell algorithm is improved to identify node influence,and the invulnerability is analyzed under random and selective attacks.Taking Airspace in Eastern China as an example,its influential nodes are sorted by degree,namely,K-shell,the improved K-shell(IKS)and betweenness centrality.The invulnerability of air traffic CPS under different attacks is analyzed.Results show that IKS can effectively identify the influential nodes in the air traffic CPS network,and IKS and betweenness centrality are the two key indicators that affect the invulnerability of air traffic CPS.展开更多
Background:Pelvic lymph node dissection(PLND)in radical cystectomy(RC)is of great significance,but the method and scope of PLND remain controversial.Based on the principle of indirect lymphadenography,we designed a me...Background:Pelvic lymph node dissection(PLND)in radical cystectomy(RC)is of great significance,but the method and scope of PLND remain controversial.Based on the principle of indirect lymphadenography,we designed a method to localize the whole pelvic lymph nodes by intradermal injection of indocyanine green(ICG)through the lower limbs and perineum,and to evaluate the effectiveness of this method. Methods:In a single center,54 bladder cancer patients who underwent RC and PLND participated in a prospective clinical trial,which began on February 28,2022 and ended on December 30,2022.ICG solution was injected subcutaneously at the medial malleolus of both lower extremities and at both sides of the midline of the perineum.The fluorescent laparoscopy was used to trace,locate,and remove the targeted areas under the image fusion mode.The consistency of lymph node resection was determined by histopathological diagnosis.The impact of ICG guidance on the surgical time of PLND was compared with that of 11 bladder cancer patients who underwent RC and PLND without ICG injection,serving as the control group. Results:Perineal lower limb combined injection can provide comprehensive visualization of pelvic lymph nodes.This technique reduces PLND surgical time and increases the accuracy of PLND. Conclusion:Intracutaneous injection of ICG into the lower limbs and perineum can specifically mark pelvic lymph nodes.Intraoperative fluores-cence imaging can accurately identify,locate,and resect lymph nodes in the pelvic region,reducing PLND surgical time and increasing the accuracy of PLND.展开更多
基金This work was supported by the Fundamental Research Funds for the Central Universities(No.3122019191).
文摘To ensure flight safety,the complex network method is used to study the influence and invulnerability of air traffic cyber physical system(CPS)nodes.According to the rules of air traffic management,the logical coupling relationship between routes and sectors is analyzed,an air traffic CPS network model is constructed,and the indicators of node influence and invulnerability are established.The K-shell algorithm is improved to identify node influence,and the invulnerability is analyzed under random and selective attacks.Taking Airspace in Eastern China as an example,its influential nodes are sorted by degree,namely,K-shell,the improved K-shell(IKS)and betweenness centrality.The invulnerability of air traffic CPS under different attacks is analyzed.Results show that IKS can effectively identify the influential nodes in the air traffic CPS network,and IKS and betweenness centrality are the two key indicators that affect the invulnerability of air traffic CPS.
文摘Background:Pelvic lymph node dissection(PLND)in radical cystectomy(RC)is of great significance,but the method and scope of PLND remain controversial.Based on the principle of indirect lymphadenography,we designed a method to localize the whole pelvic lymph nodes by intradermal injection of indocyanine green(ICG)through the lower limbs and perineum,and to evaluate the effectiveness of this method. Methods:In a single center,54 bladder cancer patients who underwent RC and PLND participated in a prospective clinical trial,which began on February 28,2022 and ended on December 30,2022.ICG solution was injected subcutaneously at the medial malleolus of both lower extremities and at both sides of the midline of the perineum.The fluorescent laparoscopy was used to trace,locate,and remove the targeted areas under the image fusion mode.The consistency of lymph node resection was determined by histopathological diagnosis.The impact of ICG guidance on the surgical time of PLND was compared with that of 11 bladder cancer patients who underwent RC and PLND without ICG injection,serving as the control group. Results:Perineal lower limb combined injection can provide comprehensive visualization of pelvic lymph nodes.This technique reduces PLND surgical time and increases the accuracy of PLND. Conclusion:Intracutaneous injection of ICG into the lower limbs and perineum can specifically mark pelvic lymph nodes.Intraoperative fluores-cence imaging can accurately identify,locate,and resect lymph nodes in the pelvic region,reducing PLND surgical time and increasing the accuracy of PLND.
