In order to improve the multiplexing capability of the optical sensors based on the lower interferential optic fiber sensing technology and the white light fiber-optic Mach-Zehnder interferometer,reflective ladder top...In order to improve the multiplexing capability of the optical sensors based on the lower interferential optic fiber sensing technology and the white light fiber-optic Mach-Zehnder interferometer,reflective ladder topology network ( RLT) with tailored formula was proposed. The topology network consists of 6 rungs sensing elements linked by 5 couplers. Two cases with different choices of couplers were contrasted: one is equal coupling ratio,and the other is tailored coupling ratio. Through the simulation of these two cases,the detailed multiplexing capability was analyzed,and accordingly the experiments were also carried out. The simulation results showed that,the tailored formula enhances the multiplexing capability of the structure. In the first case, the maximum number of sensors which can be multiplexed is 8,and in the other case is 12 fiber optic sensors. The experimental results have a good agreement with numerical simulation results. Thus,it is considered expedient to incorporate RLT into large-scale building,grounds,bridges,dams,tunnels,highways and perimeter security.展开更多
目的研究单侧腰麻轻比重大容量配方在高龄患者髋部手术中的应用价值。方法选取2019年1月至2021年12月行髋部手术的96例高龄患者为研究对象,采用随机数字表法,按照1∶1配比原则将患者分为对照组和研究组,每组48例。髋部手术中,对照组采...目的研究单侧腰麻轻比重大容量配方在高龄患者髋部手术中的应用价值。方法选取2019年1月至2021年12月行髋部手术的96例高龄患者为研究对象,采用随机数字表法,按照1∶1配比原则将患者分为对照组和研究组,每组48例。髋部手术中,对照组采用全麻方法,研究组采用单侧腰麻轻比重大容量配方,比较2组麻醉情况、不同时间段的血流动力学、术后双下肢肌力恢复时间、自主排尿恢复时间以及不良反应发生率。结果对照组和研究组感觉阻滞、运动阻滞的起效时间和持续时间比较差异无统计学意义(P>0.05)。麻醉后10 min、30 min 2组平均脉动压(MVP)、心率(HR)较麻醉前降低(P<0.05),但2组比较差异无统计学意义(P>0.05);术毕2 min,2组MVP、HR比较差异无统计学意义(P>0.05)。研究组术后双下肢肌力恢复时间、自主排尿恢复时间均长于对照组(P<0.05)。结论在高龄患者髋部手术中采用单侧腰麻轻比重大容量配方,能获得与全麻相近的麻醉效果,维持血流动力学稳定,降低不良反应发生率,但患者的下肢肌力恢复较慢。展开更多
文摘目的:探讨荆防方加减联合红黄光及重组牛碱性成纤维细胞生长因子(rb-bFGF)凝胶治疗面部糖皮质激素依赖性皮炎(Facial corticosteroid addictive dermatitis,FCAD)的效果。方法:根据治疗方法不同将2022年2月-2023年8月笔者医院的90例FCAD患者分为对照组和观察组,各45例。对照组使用红黄光照射治疗,观察组同时使用荆防方治疗。对比两组的临床疗效、症状评分、皮肤屏障功能、血清炎症因子水平、不良反应。结果:观察组的有效率(91.11%)高于对照组(73.33%)(P<0.05),观察组治疗后潮红、瘙痒、干燥脱屑、灼热疼痛的症状评分均低于对照组(P<0.05),观察组治疗后的皮脂含量、皮肤角质层含水量(Cuticle water conten,WCSC)高于对照组,经皮肤水分流失量(Transcutaneous water loss,TEWL)低于对照组(P<0.05),观察组治疗后的干扰素-γ(INF-γ)、免疫球蛋白-E(IgE)、白细胞介素-4(IL-4)水平均低于对照组(P<0.05),两组不良反应比较,差异无统计学意义(P>0.05)。结论:荆防方加减联合红黄光及rb-bFGF凝胶治疗FCAD的效果显著,能够减轻患者的症状,提高皮肤屏障功能,改善炎症状态。
基金Sponsored by the Natural Science Foundation of Heilongjiang Province (Grant No. QC2012C081)the Creative Qualified Scientists and Technicians Foundation of Harbin City (Grant No. RC2012QN001025)the National Natural Science Foundation of China (Grant No. 61107069 and 41174161)
文摘In order to improve the multiplexing capability of the optical sensors based on the lower interferential optic fiber sensing technology and the white light fiber-optic Mach-Zehnder interferometer,reflective ladder topology network ( RLT) with tailored formula was proposed. The topology network consists of 6 rungs sensing elements linked by 5 couplers. Two cases with different choices of couplers were contrasted: one is equal coupling ratio,and the other is tailored coupling ratio. Through the simulation of these two cases,the detailed multiplexing capability was analyzed,and accordingly the experiments were also carried out. The simulation results showed that,the tailored formula enhances the multiplexing capability of the structure. In the first case, the maximum number of sensors which can be multiplexed is 8,and in the other case is 12 fiber optic sensors. The experimental results have a good agreement with numerical simulation results. Thus,it is considered expedient to incorporate RLT into large-scale building,grounds,bridges,dams,tunnels,highways and perimeter security.
文摘目的研究单侧腰麻轻比重大容量配方在高龄患者髋部手术中的应用价值。方法选取2019年1月至2021年12月行髋部手术的96例高龄患者为研究对象,采用随机数字表法,按照1∶1配比原则将患者分为对照组和研究组,每组48例。髋部手术中,对照组采用全麻方法,研究组采用单侧腰麻轻比重大容量配方,比较2组麻醉情况、不同时间段的血流动力学、术后双下肢肌力恢复时间、自主排尿恢复时间以及不良反应发生率。结果对照组和研究组感觉阻滞、运动阻滞的起效时间和持续时间比较差异无统计学意义(P>0.05)。麻醉后10 min、30 min 2组平均脉动压(MVP)、心率(HR)较麻醉前降低(P<0.05),但2组比较差异无统计学意义(P>0.05);术毕2 min,2组MVP、HR比较差异无统计学意义(P>0.05)。研究组术后双下肢肌力恢复时间、自主排尿恢复时间均长于对照组(P<0.05)。结论在高龄患者髋部手术中采用单侧腰麻轻比重大容量配方,能获得与全麻相近的麻醉效果,维持血流动力学稳定,降低不良反应发生率,但患者的下肢肌力恢复较慢。
