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1.
ANEWDIAGNOSISAPPROACHBYTHESTRATIFIEDATMS*YangJie(杨杰)LuZhenggang(陆正刚)(InstituteofImageProcessingandPaternRecognition,ShanghaiJ...  相似文献   

2.
A FAST ALGORITHM FOR EXTREME FILTER OF 2D IMAGE   总被引:1,自引:0,他引:1  
AFASTALGORITHMFOREXTREMEFILTEROF2DIMAGEXuLei(许磊)LiJiegu(李介谷)LiWenshun(李文舜)(InstituteofPaternRecognition&ImageProcessing,Shang...  相似文献   

3.
SURFACESEGREGATIONOFSINMETALSOFCo,Cu,FeANDTiQiZhenzhong(戚震中)YangChunsheng(杨春生)(InformationStorageResearchCenter,StateEducatio...  相似文献   

4.
“SEQOFPAR”STYLESTRUCTUREDPARALLELPROGRAMMINGYuanWeiSunYongqiang(DepartmentofComputerScience)AbstractThispaperpresentsanewstru...  相似文献   

5.
MEDIASYNCHRONIZATIONSTRATEGIESINVODSYSTEMFeiXiaoqiang(费晓强)ShiPengfei(施鹏飞)(InstituteofImageProcessingandPaternRecognition,Shan...  相似文献   

6.
CONTROL AND SELECTION OF STRUCTURE PARAMETERS OF ADAPTIVE SUCKING DISK   总被引:1,自引:0,他引:1  
CONTROLANDSELECTIONOFSTRUCTUREPARAMETERSOFADAPTIVESUCKINGDISKMaPeisun(马培荪)ZhuHaihong(朱海鸿)(Dept.ofMechanicalEngineering,Shangh...  相似文献   

7.
DYNAMICANALYSISOF1150MWNUCLEARTURBINE┐GENERATORSYSTEMFangZhichu(方之楚)(Dept.ofEngineringMechanics,ShanghaiJiaotongUniv,Shanghai...  相似文献   

8.
初步探讨内镜诊断反流食管炎(reflux esophagitis,RE)的临床价值。方法 根据胃食管反流症状并经内镜诊断的RE病(A组,24例)分别行食管测压及24h pH监测并与正常对照组(B组,20例)比较。结果 A组与B组比较,下食管括约肌静息压(lower esophageal sphincter presure,LESP)(P〈0.01)、原发蠕动收缩波幅(P〈0.05)及24h pH监  相似文献   

9.
PROPHYLAXISOFINTERMITTENTDIAZEPAMINCHILDRENWITHFEBRILECONVULSIONS(FC)(DepartmentofPediatrics,SecondAffiliatedHospital,Xi'an71...  相似文献   

10.
EN-ERALIZED FRACTAL DIMENSION OF SPEECHTX@董远@胡光锐@陈玮IntroductionSeveralmechanismsinspeechflowscanbeviewedasroutestochaos.Thenonlin...  相似文献   

11.
为探讨比索洛尔对冠心病患者心率变异性(Heartrate variability,HRV)和代谢的影响,将60 例冠心病(CHD)患者随机分为对照组和比索洛尔组,对HRV各时域指标及血脂、血糖、胰岛素等代谢指标进行检测。结果表明,比索洛尔组反映交感神经张力的HRV指标明显提高;比索洛尔对血糖、血脂及尿酸等代谢指标无明显影响。表明比索洛尔能改善CHD患者HRV情况,同时对代谢无影响  相似文献   

12.
Heart rate variability (HRV) is a noninvasive technique for autonomic nerve activity assessment and an indirect index of adrenergic cardiovascular drive. Renalase is the only known enzyme degrading circulatory catecholamines, participating in regulations of the cardiovascular and sympathetic nervous systems. This study aims at the relation between serum renalase and HRV indexes in dialysis patients. There were 14 hemodialysis (HD) cases, 16 continuous ambulatory peritoneal dialysis (PD) cases, and 16 healthy volunteers enrolled in this study. All the subjects underwent 24 h Holter testing by using a dynamic electocardiogram monitor system to determine HRV parameters, and serum renalase levels were measured. The standard deviation of normal to normal R-R intervals (SDNN, a measure of beat-to-beat variability), root mean square successive difference (RMSSD), and the proportion derived by dividing NN50 (the number of interval differences of successive normal to normal intervals greater than 50 ms) by the total number of NN intervals (pNN50) were determined to assess HRV. Both HD and PD patients presented increased maximum heart rate (Max-HR), minimum heart rate (Min-HR) and average heart rate (Ave-HR), and presented decreased SDNN, RMSSD and pNN50 relative to healthy controls. Serum levels of renalase were highly negatively correlated with Ave-HR (correlation coefficient r = -0.68, probability P 〈 0.01), while positively correlated with SDNN (r = 0.64, P 〈 0.01) in both the HD and PD groups. Serum level of renalase was positively correlated with 24 h urine volume (r = 0.73, P 〈 0.01) in PD patients. Renalase might be reciprocally related to HRV and inversely related to Ave-HR in dialysis patients, which will help to probe into renalase's physiology and may pave the way to explore renalase replacement therapy in patients with end stage renal disease (ESRD).  相似文献   

13.
探讨美托洛尔对高血压病患者心率变异性 ( Heart rate variability,HRV)的影响。方法  40例高血压病患者于口服美托洛尔 ( 50~ 1 0 0 mg/d)前及 4周后分别行 2 4 h动态心电图检查 ,分析心率变异时域指标 SDNN、SDANN、SDNNI、RMSSD、PNN50的变化 ;30例正常人作为对照。结果 高血压病患者服药前 HRV各时域指标均较正常组显著下降 ;使用美托洛尔后可显著降低其血压水平 ,伴有 HRV各时域指标显著增高。结论 高血压病患者存在 HRV降低 ;β受体阻滞剂在有效降压的同时可显著改善患者的 HRV,提示该药具有改善高血压病心脏自主神经损害的有益作用  相似文献   

14.
目的 探讨CO2 人工气腹在安氟醚吸入麻醉中对腹腔镜胆囊切除手术患者心率变异性 (heartratevariability ,HRV)及脑电 (electroencephalogram ,EEG)指标的不同影响。 方法 利用心率变异功率谱分析技术 (HRV PSA)和脑电功率谱分析技术 (EEG PSA)对 2 8例腹腔镜胆囊切除手术患者在麻醉前、麻醉诱导插管后及CO2 人工气腹后HRV指标LF、HF、LF HF、TP及EEG参数BIS、95 %SEF的变化进行了观察。结果 麻醉诱导插管后LF、HF、TP、BIS及95 %SEF均显著降低 ,LF HF未见明显改变 ;CO2 人工气腹后LF、LF HF、TP显著升高 ,HF、BIS及 95 %SEF未见明显改变。结论 CO2 人工气腹使交感神经活性显著升高而对大脑皮层意识活动影响不大  相似文献   

15.
目的 比较观察全麻患者插管前静脉给予尼卡地平或美托洛尔后心率变异性 (HRV)的变化。方法  90例冠心病患者随机分为三组 ,每组 30例 ,Ⅰ组为对照组 ,Ⅱ组为尼卡地平组 ,Ⅲ组为美托洛尔组。在诱导前 2min ,Ⅰ组静注生理盐水 10mL ,Ⅱ组静注尼卡地平 2 0 μg·kg-1,Ⅲ组静注美托洛尔 4 0 μg·kg-1,其余操作均相同。结果 与Ⅰ组患者的心率相比 ,Ⅱ组显著升高 (P <0 .0 5 ) ;Ⅲ组显著降低 (P <0 .0 5 )。Ⅱ组和Ⅲ组患者的平均血压在插管前后均显著低于Ⅰ组 (P <0 .0 5 ) ,而这两组间无差别。与Ⅰ组患者相比 ,LF及LF/HF在Ⅱ组升高 (P <0 .0 5 ) ,Ⅲ组降低 (P <0 .0 5 ) ;HF在Ⅱ组无明显变化 ,在Ⅲ组显著升高 (P <0 .0 5 )。结论 插管前静注尼卡地平不能有效抑制插管时交感应激反应 ,反而增强了这种作用 ,而美托洛尔则相对能够有效抑制这种反应  相似文献   

16.
The event-related desynchronization/synchronization(ERD/ERS) time courses of lower and upper alpha band rhythms during hand motor imagery are investigated respectively by Fourier Sectral Entropy (FSE) in this paper. By analyzing one group of BCI competition data, it was found that FSE within upper alpha band displays a pronounced increase and decrease over contralateral and ipsilaterai brain areas respectively at the onset of hand motor imagery, which is corresponding to the antagonistic ERD/ERS patterns in previous studies. Different from the upper alpha activity pattern, FSE within lower alpha band displays a consistent increase over both two hemispheres hand representative areas. The preliminary results show that FSE could disclose the different behaviors of the upper and lower alpha band rhythms so that a new idea with the complexity measure is provided to characterize functional dissociation of lower and upper frequency alpha rhythms in relation to hand motor imagery.  相似文献   

17.
通过对MMPI基本量表间的相关分析和因子分析,并与跨文化资料进行比较,发现中文版和原版所测的人格维度基本一致:主要负荷精神质(P),神经质(N)和社会内向(Ⅰ)因子,所解释的变异量为70%左右;其次,负荷性度(M)和社会判断和适应因子(A)。5个因子可解释变异量的80%左右。判别分析结果发现,MMPI对正常组和8组精神疾病的正确划组率达79.02%至88.28%。提示中文版有较好的结构效度。  相似文献   

18.
糖尿病与高血压病患者血管内皮功能的变化特点   总被引:1,自引:0,他引:1  
目的 利用多普勒超声检测糖尿病与高血压病的血管内皮功能 ,评价其变化特点。方法 运用多普勒超声对2 5例糖尿病 (DM )及 2 5例高血压病 (EH)患者和 2 0例正常人肱动脉充气加压及舌下含服硝酸甘油前后血管直径的变化进行观察。结果 DM和EH组充血状态下内径扩张程度较正常对照组明显减低。含服硝酸甘油后DM组内径扩张程度较正常对照组明显减低 ,EH组无显著性改变。结论 DM患者存在内皮依赖性舒张功能及非依赖性舒张功能障碍 ,EH患者内皮依赖性舒张功能障碍 ,非依赖性舒张功能正常  相似文献   

19.
针对国内钢桥面铺装采用SMA、EA、GA和ERS四种铺装结构,结合对其防水粘结体系和铺装层使用情况的调研,分析了不同防水粘结层和铺装层的使用效果,并对典型铺装结构进行对比,评述了其使用耐久性.  相似文献   

20.
结合沪宁高速公路扩建工程,分别对柔性基层沥青路面、半刚性基层沥青路面和刚性基层沥青路面3种结构类型进行了深入研究,在沪宁高速公路扩建工程中采用了柔性基层和半刚性基层沥青路面两种结构形式,本文介绍了在扩建工程过程控制中旋转压实仪和最终产品规范的应用,并对沪宁高速公路扩建工程现场路面空隙率和渗水系数的分布及相关关系进行了分析。  相似文献   

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