Objective To investigate the effects of lumbar -sacral selective posterior rhizotomy on spasticity of upper limbs,epilepsy,strabis-mus,sialorrhea and dysarthria of pa tients with spastic cerebral palsy.Methods825patie...Objective To investigate the effects of lumbar -sacral selective posterior rhizotomy on spasticity of upper limbs,epilepsy,strabis-mus,sialorrhea and dysarthria of pa tients with spastic cerebral palsy.Methods825patients with cerebral palsy who had received SPR between1990and 1998were followed up for two years at least.Result s Of 328cases with spasticity of upper limbs,67(20.4%)had partial ame-lioration of spasticity of upper lim bs.Of 35cases with epilepsy,31(88.6%)had lower frequency of onset or needed to take lower dose drug to control than ever.Of 386cases with s trabismus,132(34.2%)had improved.Of 73cases with sialorrhea,49(67.1%)had improved,21(28.8%)had found sialorrhea disappeararnce.Of 456cases with dysarthria,72(15.8%)had improved.Conclusion Selective posterior rhizotomy has curative effect on com bined symptoms in some of patients wi th cerebral palsy.展开更多
To handle the handover challenge in Express Train Access Networks(ETAN).mobility fading effects in high speed railway environments should be addressed first.Based on the investigation of fading effects in this paper,w...To handle the handover challenge in Express Train Access Networks(ETAN).mobility fading effects in high speed railway environments should be addressed first.Based on the investigation of fading effects in this paper,we obtain two theoretical bounds:HOTiming upper bound and HO-Margin lower bound,which are helpful guidelines to study the handover challenge today and in the future.Then,we apply them to analyze performance of conventional handover technologies and our proposal in ETAN.This follow-up theory analyses and simulation experiment results demonstrate that the proposed handover solution can minimize handover time up to 4ms(which is the fastest one so far),and reduce HO-Margin to 0.16 dB at a train speed of 350km/h.展开更多
This paper focuses on the independent design and construction of HYSY981. HYSY981,which China National Offshore Oil Corporation(CNOOC) possesses its intellectual property right,is brought forward by advanced research,...This paper focuses on the independent design and construction of HYSY981. HYSY981,which China National Offshore Oil Corporation(CNOOC) possesses its intellectual property right,is brought forward by advanced research,concept design and combined basic design. The key technologies are the researches concerning global design,system integration,platform positioning,global performance analysis,structural strength and fatigue analysis,environment effect assessment of South China Sea,basin test and tunnel test,and construction technology of platform. Core technology of design and construction for the 6th deep water semi-submersible rig is held. Independent detail design and construction are also accomplished. These have improved technology of key equipment for China offshore oil exploitation.展开更多
文摘Objective To investigate the effects of lumbar -sacral selective posterior rhizotomy on spasticity of upper limbs,epilepsy,strabis-mus,sialorrhea and dysarthria of pa tients with spastic cerebral palsy.Methods825patients with cerebral palsy who had received SPR between1990and 1998were followed up for two years at least.Result s Of 328cases with spasticity of upper limbs,67(20.4%)had partial ame-lioration of spasticity of upper lim bs.Of 35cases with epilepsy,31(88.6%)had lower frequency of onset or needed to take lower dose drug to control than ever.Of 386cases with s trabismus,132(34.2%)had improved.Of 73cases with sialorrhea,49(67.1%)had improved,21(28.8%)had found sialorrhea disappeararnce.Of 456cases with dysarthria,72(15.8%)had improved.Conclusion Selective posterior rhizotomy has curative effect on com bined symptoms in some of patients wi th cerebral palsy.
基金supported by the National Basic Research Program of China (973 Program)(No.2012CB315606 and 2010CB328201)
文摘To handle the handover challenge in Express Train Access Networks(ETAN).mobility fading effects in high speed railway environments should be addressed first.Based on the investigation of fading effects in this paper,we obtain two theoretical bounds:HOTiming upper bound and HO-Margin lower bound,which are helpful guidelines to study the handover challenge today and in the future.Then,we apply them to analyze performance of conventional handover technologies and our proposal in ETAN.This follow-up theory analyses and simulation experiment results demonstrate that the proposed handover solution can minimize handover time up to 4ms(which is the fastest one so far),and reduce HO-Margin to 0.16 dB at a train speed of 350km/h.
基金National "863"Program "The study of 3000m depth water semi-submersible drilling rig key technology"( No.2006AA09A103)
文摘This paper focuses on the independent design and construction of HYSY981. HYSY981,which China National Offshore Oil Corporation(CNOOC) possesses its intellectual property right,is brought forward by advanced research,concept design and combined basic design. The key technologies are the researches concerning global design,system integration,platform positioning,global performance analysis,structural strength and fatigue analysis,environment effect assessment of South China Sea,basin test and tunnel test,and construction technology of platform. Core technology of design and construction for the 6th deep water semi-submersible rig is held. Independent detail design and construction are also accomplished. These have improved technology of key equipment for China offshore oil exploitation.
