目的观察通过正确使用鹰视准分子激光系统,采用不同手术方式,治疗近视屈光不正效果的重要性。方法利用鹰视准分子治疗系统联合NIDEK MK-2000基质层自动平推板层刀及Moria one Use-plus前弹力层下自动平推板层刀,对近视球镜屈光度-0.50^-...目的观察通过正确使用鹰视准分子激光系统,采用不同手术方式,治疗近视屈光不正效果的重要性。方法利用鹰视准分子治疗系统联合NIDEK MK-2000基质层自动平推板层刀及Moria one Use-plus前弹力层下自动平推板层刀,对近视球镜屈光度-0.50^-14.00D和柱镜屈光度0^-6.00D近视眼行1K、EK、SBK手术。结果术前屈光度<-6.00D>-6.00D,术后裸眼视力达0.8以上分别为99.5%及98.5%,达到1.0以上分别为98.5%和96.5%。结论熟练正确操作鹰视准分子激光系统,对不同手术方式的近视治疗,提高患者视觉质量效果显著。展开更多
A measuring-basis encrypted quantum key distribution scheme is proposed by using twelve nonorthogohal states in a four-state system and the measuring-basis encryption technique. In this scheme, two bits of classical i...A measuring-basis encrypted quantum key distribution scheme is proposed by using twelve nonorthogohal states in a four-state system and the measuring-basis encryption technique. In this scheme, two bits of classical information can be encoded on one four-state particle and the transmitted particles can be fully used.展开更多
The arguments in this paper lead to a new definition of thermodynamic equilibrium that remedies the deficiencies of the current forms. This definition relates thermodynamic equilibrium to its physical causes and accou...The arguments in this paper lead to a new definition of thermodynamic equilibrium that remedies the deficiencies of the current forms. This definition relates thermodynamic equilibrium to its physical causes and accounts for all factors that determine it for all types of equilibrium. Standard definitions of thermodynamic equilibrium are incomplete. They do not take account of all factors that determine such equilibriums, discuss the impediments which may prevent them being reached or relate the properties that define equilibriums to the physical reasons that determine them when impediments are present. The laws of thermodynamics determine the requirements for equilibrium. These laws arise from the physical behaviour of the molecules in molecular systems and are consequences of the conservation of energy, the energies of molecules, statistics, Newton＇s laws of motion, and the equi-partition of energy. The standard definition of thermodynamic equilibrium correctly defines equilibrium whenever impediments are not factors. The discussion demonstrates how impediments arise, accounts for their role in defining equilibrium and how they relate to the energies of molecules at the conditions of the system. The new definition applies to all types of equilibrium.展开更多
文摘目的观察通过正确使用鹰视准分子激光系统,采用不同手术方式,治疗近视屈光不正效果的重要性。方法利用鹰视准分子治疗系统联合NIDEK MK-2000基质层自动平推板层刀及Moria one Use-plus前弹力层下自动平推板层刀,对近视球镜屈光度-0.50^-14.00D和柱镜屈光度0^-6.00D近视眼行1K、EK、SBK手术。结果术前屈光度<-6.00D>-6.00D,术后裸眼视力达0.8以上分别为99.5%及98.5%,达到1.0以上分别为98.5%和96.5%。结论熟练正确操作鹰视准分子激光系统,对不同手术方式的近视治疗,提高患者视觉质量效果显著。
基金The project supported by the National Fundamental Research Program under Grant No. 2006CB0L0106, National Natural Science Foundation of China under Grant Nos. 60433050, 10325521, and 10447106, and the SRFDP Program of Education Ministry of China and Beijing Education Committee under Grant No. XK100270454
文摘A measuring-basis encrypted quantum key distribution scheme is proposed by using twelve nonorthogohal states in a four-state system and the measuring-basis encryption technique. In this scheme, two bits of classical information can be encoded on one four-state particle and the transmitted particles can be fully used.
文摘The arguments in this paper lead to a new definition of thermodynamic equilibrium that remedies the deficiencies of the current forms. This definition relates thermodynamic equilibrium to its physical causes and accounts for all factors that determine it for all types of equilibrium. Standard definitions of thermodynamic equilibrium are incomplete. They do not take account of all factors that determine such equilibriums, discuss the impediments which may prevent them being reached or relate the properties that define equilibriums to the physical reasons that determine them when impediments are present. The laws of thermodynamics determine the requirements for equilibrium. These laws arise from the physical behaviour of the molecules in molecular systems and are consequences of the conservation of energy, the energies of molecules, statistics, Newton＇s laws of motion, and the equi-partition of energy. The standard definition of thermodynamic equilibrium correctly defines equilibrium whenever impediments are not factors. The discussion demonstrates how impediments arise, accounts for their role in defining equilibrium and how they relate to the energies of molecules at the conditions of the system. The new definition applies to all types of equilibrium.
