This paper presents a Butterfly Optimization Algorithm(BOA)with a wind-driven mechanism for avoiding natural enemies known as WDBOA.To further balance the basic BOA algorithm's exploration and exploitation capabil...This paper presents a Butterfly Optimization Algorithm(BOA)with a wind-driven mechanism for avoiding natural enemies known as WDBOA.To further balance the basic BOA algorithm's exploration and exploitation capabilities,the butterfly actions were divided into downwind and upwind states.The algorithm of exploration ability was improved with the wind,while the algorithm of exploitation ability was improved against the wind.Also,a mechanism of avoiding natural enemies based on Lévy flight was introduced for the purpose of enhancing its global searching ability.Aiming at improving the explorative performance at the initial stages and later stages,the fragrance generation method was modified.To evaluate the effectiveness of the suggested algorithm,a comparative study was done with six classical metaheuristic algorithms and three BOA variant optimization techniques on 18 benchmark functions.Further,the performance of the suggested technique in addressing some complicated problems in various dimensions was evaluated using CEC 2017 and CEC 2020.Finally,the WDBOA algorithm is used proportional-integral-derivative(PID)controller parameter optimization.Experimental results demonstrate that the WDBOA based PID controller has better control performance in comparison with other PID controllers tuned by the Genetic Algorithm(GA),Flower Pollination Algorithm(FPA),Cuckoo Search(CS)and BOA.展开更多
目的:观察蜈黛软膏外涂联合闪罐、走罐治疗斑块型银屑病的临床疗效。方法:将60例斑块型银屑病患者按照随机数字表法分为治疗组和对照组,每组各30例。对照组皮损处外涂复方丙酸氯倍他索软膏,同时进行全身窄谱中波紫外线照射;治疗组给予...目的:观察蜈黛软膏外涂联合闪罐、走罐治疗斑块型银屑病的临床疗效。方法:将60例斑块型银屑病患者按照随机数字表法分为治疗组和对照组,每组各30例。对照组皮损处外涂复方丙酸氯倍他索软膏,同时进行全身窄谱中波紫外线照射;治疗组给予蜈黛软膏外涂联合闪罐、走罐治疗。比较两组患者的临床疗效及治疗前后严重程度指数(psoriasis area and severity index,PASI)评分变化情况,观察两组患者不良反应发生情况。结果:两组患者治疗2周、治疗4周PASI评分均低于本组治疗前,差异具有统计学意义(P<0.05);治疗组治疗2周、治疗4周PASI评分低于对照组,但差异无统计学意义(P>0.05)。治疗组有效为率86.7%,对照组有效率为83.3%,两组有效率比较,差异无统计学意义(P>0.05)。治疗组无不良反应发生,对照组有8例患者出现不良反应,对症处理后均得到缓解。结论:蜈黛软膏外涂联合闪罐、走罐治疗斑块型银屑病与复方丙酸氯倍他索软膏联合全身窄谱中波紫外线照射疗效相当,且无明显不良反应。展开更多
The World Data Organization(WDO),a professional,non-governmental and non-profit international body inaugurated in Beijing on March 30,aims to provide a platform for global collaboration.To gain insights into the WDO’...The World Data Organization(WDO),a professional,non-governmental and non-profit international body inaugurated in Beijing on March 30,aims to provide a platform for global collaboration.To gain insights into the WDO’s role in international data governance,Beijing Review spoke to Gao Yi,an associate research fellow at the Chinese Academy of Science and Technology for Development.Gao specializes in international science and technology relations as well as innovation policy and governance.Edited excerpts of the interview follow.展开更多
基金This work was supported by National Natural Science Foundation of China under Grant U21A20464,62066005Project of the Guangxi Science and Technology under Grant No.ZL23014016.
文摘This paper presents a Butterfly Optimization Algorithm(BOA)with a wind-driven mechanism for avoiding natural enemies known as WDBOA.To further balance the basic BOA algorithm's exploration and exploitation capabilities,the butterfly actions were divided into downwind and upwind states.The algorithm of exploration ability was improved with the wind,while the algorithm of exploitation ability was improved against the wind.Also,a mechanism of avoiding natural enemies based on Lévy flight was introduced for the purpose of enhancing its global searching ability.Aiming at improving the explorative performance at the initial stages and later stages,the fragrance generation method was modified.To evaluate the effectiveness of the suggested algorithm,a comparative study was done with six classical metaheuristic algorithms and three BOA variant optimization techniques on 18 benchmark functions.Further,the performance of the suggested technique in addressing some complicated problems in various dimensions was evaluated using CEC 2017 and CEC 2020.Finally,the WDBOA algorithm is used proportional-integral-derivative(PID)controller parameter optimization.Experimental results demonstrate that the WDBOA based PID controller has better control performance in comparison with other PID controllers tuned by the Genetic Algorithm(GA),Flower Pollination Algorithm(FPA),Cuckoo Search(CS)and BOA.
文摘目的:观察蜈黛软膏外涂联合闪罐、走罐治疗斑块型银屑病的临床疗效。方法:将60例斑块型银屑病患者按照随机数字表法分为治疗组和对照组,每组各30例。对照组皮损处外涂复方丙酸氯倍他索软膏,同时进行全身窄谱中波紫外线照射;治疗组给予蜈黛软膏外涂联合闪罐、走罐治疗。比较两组患者的临床疗效及治疗前后严重程度指数(psoriasis area and severity index,PASI)评分变化情况,观察两组患者不良反应发生情况。结果:两组患者治疗2周、治疗4周PASI评分均低于本组治疗前,差异具有统计学意义(P<0.05);治疗组治疗2周、治疗4周PASI评分低于对照组,但差异无统计学意义(P>0.05)。治疗组有效为率86.7%,对照组有效率为83.3%,两组有效率比较,差异无统计学意义(P>0.05)。治疗组无不良反应发生,对照组有8例患者出现不良反应,对症处理后均得到缓解。结论:蜈黛软膏外涂联合闪罐、走罐治疗斑块型银屑病与复方丙酸氯倍他索软膏联合全身窄谱中波紫外线照射疗效相当,且无明显不良反应。
文摘The World Data Organization(WDO),a professional,non-governmental and non-profit international body inaugurated in Beijing on March 30,aims to provide a platform for global collaboration.To gain insights into the WDO’s role in international data governance,Beijing Review spoke to Gao Yi,an associate research fellow at the Chinese Academy of Science and Technology for Development.Gao specializes in international science and technology relations as well as innovation policy and governance.Edited excerpts of the interview follow.
