AIM:To report the myopia-controlling effect of repeated low-level red-light(RLRL)therapy in patients with Stickler syndrome(STL),an inherited collagenic disease typically presenting with early onset myopia.METHODS:Thr...AIM:To report the myopia-controlling effect of repeated low-level red-light(RLRL)therapy in patients with Stickler syndrome(STL),an inherited collagenic disease typically presenting with early onset myopia.METHODS:Three STL children,aged 3,7,and 11y,received RLRL therapy throughout the follow-up period of 17,3,and 6mo,respectively after exclusion of fundus anomalies.Data on best-corrected visual acuity(BCVA),intraocular pressure,cycloplegic subjective refraction,ocular biometrics,scanning laser ophthalmoscope,optical coherence tomography,genetic testing,systemic disease history,and family history were recorded.RESULTS:At the initiation of the RLRL therapy,the spherical equivalent(SE)of 6 eyes from 3 patients ranged from-3.75 to-20.38 D,axial length(AL)were from 23.88 to 30.68 mm,and BCVA were from 0.4 to 1.0(decimal notation).Myopia progression of all six eyes slowed down after RLRL therapy.AL in five out of the six eyes shortened-0.07 to-0.63 mm.No side effects were observed.CONCLUSION:Three cases of STL whose progression of myopic shift and AL elongation are successfully reduced and even reversed after RLRL therapy.展开更多
针对实际工程应用中的里德-所罗门(Reed-Solomon,RS)编码识别问题,根据国际空间数据系统咨询委员会(Consultative Committee for Space Data Systems,CCSDS)标准,提出了基于软信息的低复杂度缩短交织RS编码识别算法。利用码字同步算法...针对实际工程应用中的里德-所罗门(Reed-Solomon,RS)编码识别问题,根据国际空间数据系统咨询委员会(Consultative Committee for Space Data Systems,CCSDS)标准,提出了基于软信息的低复杂度缩短交织RS编码识别算法。利用码字同步算法对码字起点和缩短长度进行识别,利用接收到的RS码字计算基于校正子后验概率对数似然比平均值的编码识别特征,对码字的交织深度进行识别;进而利用识别所得的RS码交织深度和缩短长度对接收码字进行解交织和码字填充,识别RS码生成多项式。仿真结果表明,所提算法在信噪比为6.1 dB时正确识别概率即可大于90%,相较传统硬判决识别算法和基于伽罗华域快速傅里叶变换(Galois Field Fourier Transform,GFFT)的谱累积量算法均有显著的性能提升。展开更多
缩短平均住院日可提高床位利用率和周转次数,使医院有限的资源为更多的病人服务,从而提高医院的工作效率和质量。本文采取一对一访谈、封闭式问卷的调查方法,对患者和医护人员进行影响平均住院日因素的问卷调查,运用SPSS等工具,对调查...缩短平均住院日可提高床位利用率和周转次数,使医院有限的资源为更多的病人服务,从而提高医院的工作效率和质量。本文采取一对一访谈、封闭式问卷的调查方法,对患者和医护人员进行影响平均住院日因素的问卷调查,运用SPSS等工具,对调查结果进行相关分析、逐步回归分析,找出影响平均住院日的主要因素。针对院内可控因素,提出缩短平均住院日的具体措施,包括:医院科学配置病房,科室统筹安排床位,制定合理的平均住院日标准,优化医疗服务流程,健全缩短平均住院日的激励机制,大力开展新业务、新技术,强化单病种管理,开展临床路径,提高医疗技术水平和服务效能;针对政策影响因素,提出政策建议。Research on shortening average length of stay and improving service efficiency/WANG Meiying//Chinese Hospitals.-2011,15(7)展开更多
Using the Hefei Light Source phase Ⅱ project （HLS- Ⅱ） as an example, a theoretical analysis of shortening the bunch lengths using a higher harmonic cavity （HHC） is given. The threshold voltage of an active HHC a...Using the Hefei Light Source phase Ⅱ project （HLS- Ⅱ） as an example, a theoretical analysis of shortening the bunch lengths using a higher harmonic cavity （HHC） is given. The threshold voltage of an active HHC and the threshold tuning angle of a passive HHC are first analysed. The optimum tuning angle for the constant detuning scenario and the optimum harmonic voltage for the constant voltage scenario are presented. The calculated results show that the reduced bunch length is about half that of the nominal bunch. The bunch lengths vary from 11 mm at 0.1 A to 7 mm at 0.4 A for the constant detuning scenario, while the bunch lengths are around 7 mm over the beam current range for the constant voltage scenario. In addition, the synchrotron frequency spread is increased. It indicates that HHC may be used to reduce the bunch length and increase the Landau damping of synchrotron oscillations in a storage ring.展开更多
文摘AIM:To report the myopia-controlling effect of repeated low-level red-light(RLRL)therapy in patients with Stickler syndrome(STL),an inherited collagenic disease typically presenting with early onset myopia.METHODS:Three STL children,aged 3,7,and 11y,received RLRL therapy throughout the follow-up period of 17,3,and 6mo,respectively after exclusion of fundus anomalies.Data on best-corrected visual acuity(BCVA),intraocular pressure,cycloplegic subjective refraction,ocular biometrics,scanning laser ophthalmoscope,optical coherence tomography,genetic testing,systemic disease history,and family history were recorded.RESULTS:At the initiation of the RLRL therapy,the spherical equivalent(SE)of 6 eyes from 3 patients ranged from-3.75 to-20.38 D,axial length(AL)were from 23.88 to 30.68 mm,and BCVA were from 0.4 to 1.0(decimal notation).Myopia progression of all six eyes slowed down after RLRL therapy.AL in five out of the six eyes shortened-0.07 to-0.63 mm.No side effects were observed.CONCLUSION:Three cases of STL whose progression of myopic shift and AL elongation are successfully reduced and even reversed after RLRL therapy.
文摘针对实际工程应用中的里德-所罗门(Reed-Solomon,RS)编码识别问题,根据国际空间数据系统咨询委员会(Consultative Committee for Space Data Systems,CCSDS)标准,提出了基于软信息的低复杂度缩短交织RS编码识别算法。利用码字同步算法对码字起点和缩短长度进行识别,利用接收到的RS码字计算基于校正子后验概率对数似然比平均值的编码识别特征,对码字的交织深度进行识别;进而利用识别所得的RS码交织深度和缩短长度对接收码字进行解交织和码字填充,识别RS码生成多项式。仿真结果表明,所提算法在信噪比为6.1 dB时正确识别概率即可大于90%,相较传统硬判决识别算法和基于伽罗华域快速傅里叶变换(Galois Field Fourier Transform,GFFT)的谱累积量算法均有显著的性能提升。
文摘缩短平均住院日可提高床位利用率和周转次数,使医院有限的资源为更多的病人服务,从而提高医院的工作效率和质量。本文采取一对一访谈、封闭式问卷的调查方法,对患者和医护人员进行影响平均住院日因素的问卷调查,运用SPSS等工具,对调查结果进行相关分析、逐步回归分析,找出影响平均住院日的主要因素。针对院内可控因素,提出缩短平均住院日的具体措施,包括:医院科学配置病房,科室统筹安排床位,制定合理的平均住院日标准,优化医疗服务流程,健全缩短平均住院日的激励机制,大力开展新业务、新技术,强化单病种管理,开展临床路径,提高医疗技术水平和服务效能;针对政策影响因素,提出政策建议。Research on shortening average length of stay and improving service efficiency/WANG Meiying//Chinese Hospitals.-2011,15(7)
基金Supported by National Nature Science Foundation of China(10675116)Major State Basic Research Development Programme of China(2011CB808301)
文摘Using the Hefei Light Source phase Ⅱ project （HLS- Ⅱ） as an example, a theoretical analysis of shortening the bunch lengths using a higher harmonic cavity （HHC） is given. The threshold voltage of an active HHC and the threshold tuning angle of a passive HHC are first analysed. The optimum tuning angle for the constant detuning scenario and the optimum harmonic voltage for the constant voltage scenario are presented. The calculated results show that the reduced bunch length is about half that of the nominal bunch. The bunch lengths vary from 11 mm at 0.1 A to 7 mm at 0.4 A for the constant detuning scenario, while the bunch lengths are around 7 mm over the beam current range for the constant voltage scenario. In addition, the synchrotron frequency spread is increased. It indicates that HHC may be used to reduce the bunch length and increase the Landau damping of synchrotron oscillations in a storage ring.
