cvr

Identification of the Acoustic Signal of CVR Based on Online Algorithm of Independent Component Analysis

基于在线独立分量分析算法的飞机舱音信息分离

CONCLUSION : Rest myocardial blood flow was increased , CVR was decreased ;

结论：急性低氧时，安静心肌血流量增加，CVR减少；

CVR and CVR ′ sound information characteristics are first presented in the paper .

文章介绍了飞机舱音记录器、舱音记录器声信息及特点。

To evaluate the effect of age older on CVR .

探讨年龄对冠脉血流储备的影响。

Initial Study on Airplane Cockpit Voice Recorder ( CVR )′ Sound Information Identification Methods

飞机舱音记录器声信息识别方法的初步研究

United time-frequency analysis for background sounds of CVR

飞机舱音记录器背景声信息的联合时频分析

Conclusions The breath-holding test is a simple , economic and effective method for assessing CVR .

结论TCD屏气试验作为一种简单、方便、经济的检测手段，可有效地用于CVR评价。

CVR method for identification of nonsteady aerodynamic model

识别非定常气动力模型的初脉冲耦合振动法

Conclusion : The PPO rehabilitation treatment and nursing is very valuable for the patients received CVR .

结论：围术期给予康复治疗和护理对心脏瓣膜替换术病人尽快恢复，回归社会十分有益。

Then , the shortages of CVR sound information decoding system based on audio-frequency techniques are point out .

指出了当前国内基于计算机音频处理技术的舱音记录器声信息译码系统在对声信息辨听方法上存在的不足。

Methods Analyzing retrospectively the data of pregnancy and delivery in 19 patients after cardiac valve replacement ( CVR ) .

方法对19例心脏机械瓣膜置换手术后妊娠及分娩的资料进行回顾性分析。

Stability Simulation of Unsteady Aerodynamic Based on Large-amplitude Motion ; CVR METHOD FOR IDENTIFICATION OF NONSTEADY AERODYNAMIC MODEL

基于大振幅运动非定常气动力的稳定性仿真识别非定常气动力模型的初脉冲耦合振动法

Results : PAMD can increase CBF and decrease CVR , but have no effect of cardiac function ;

结果：PAMD可增加脑血流量，降低脑血管阻力，对心脏功能无明显影响；

A study on the release rate of contraceptive vaginal ring ( cvr ) containing megestrol acetate in vitro

甲地孕酮阴道避孕药环体外释放量测试研究

Objective To probe the risk factors of early acute renal failure ( ARF ) after cardiac valve replacement ( CVR ) .

目的探讨心脏换瓣术后早期急性肾功能衰竭的危险因素。

It has been confirmed that CVR impairment and LA are associated in elderly or patients with overt cerebral ischemia .

已证实老年人或具有明显脑缺血病变患者的CVR损害和LA具有相关性。

Hypertension can significantly impair CVR .

高血压病能显著影响CVR。

The application of confocal and non-confocal optical path in microarray scanner is analyzed . The concept of CVR is briefly introduced .

着重分析了共聚焦光路与非共聚焦光路在生物芯片扫描仪中的应用特点，以及CVR技术指标。

The computer processing methods , applying to CVR sound information ( noise 、 speech signals background sound ), are systemically put forward according to Matlab Wavelet Transform .

系统提出了运用MATLAB语言和小波变换对舱音记录器所记录的声信息（噪声、语音信息和其它背景声信息）识别方法。

It can be used to assess the rCBF and cerebrovascular reserve ( CVR ) in the patients suffered from ischemic stroke .

脑血管储备是指在生理或病理状态下，脑血管通过自身调节维持正常稳定脑血流的能力。

During the hypotension , CVR and RVR showed a decline for 10 & 30 minutes .

BP下降时，CVR及RVR降低，可维持10&30分钟。

Estimation of Coronary Stenosis by Coronary Sinus Blood Flow Reserve Using Transthoracic Echocardiography ; ② To evaluate the effect of age older on CVR .

经胸超声测定冠状窦血流储备评价冠脉狭窄的临床研究②探讨年龄对冠脉血流储备的影响。

Intermittent hypobaric hypoxia for 90 days did not lead to significant change in left ventricular CVR , myocardial ET-1 / NO - 2 ratio .

间断低压低氧90d后，左室CVR、心肌ET-1/NO-2比值无明显改变；

The information recorded by CVR , such as sound of important switch or button , manipulation handle and warning , is important information for investigators after an accident .

当事故发生后，对事故调查员而言，CVR记录的驾驶舱非话语背景声如关键开关按钮声、操纵手柄和警告声等等，是重要的信息来源。

However , right ventricular myocardial ET-1 contents , ET-1 / NO - 2 ratio were increased , right ventricular CVR and myocardial NO - 2 contents were decreased .

右室心肌ET-1含量、ET-1/NO-2比值明显增加，右室NO-2含量、CVR明显下降；

Objective To investigate the capacity of cerebrovascular reserve ( CVR ) by 5 % CO2-inhalation CT perfusion challenge test in symptomatic middle cerebral artery stenosis disease .

目的采用5%CO2吸入CT灌注成像研究症状性大脑中动脉（MCA）缺血患者MCA分布区脑血管储备能力。

It was found that the alveolar hypoxia led to an increase in pulmonary resistance ( CVR ) in rabbits and caused cerebral arteriolar dilation in rats .

发现吸入10%氧使家兔肺血管阻力（PVR）增加，脑血管阻力（CVR）降低，大鼠脑微动脉扩张。

Cerebrovascular reactivity ( CVR ) is a compensatory ability of cerebral micro vessels to maintain the stability of cerebral blood flow by vasodilation or vasoconstriction .

脑血管反应性（cerebrovascularreactivity，CVR）是脑微小血管自身通过血管舒张或收缩维持脑血流量稳定的代偿能力。

Gradient silicon carbide coatings were prepared on the surface of C / C composites by chemical vapor reaction ( CVR ) . Formation mechanism and oxidation resistance property of the coating were discussed .

本文采用化学气相反应法（CVR）制备了C/C复合材料的梯度SiC涂层，对该梯度涂层的形成机理及抗氧化性能进行了试验研究。

Conclusion 5 % CO2-inhalation CT perfusion challenge test is an accessible method to evaluate the capacity of cerebrovascular reserve ( CVR ), and it provides useful information for the further clinical therapy .

结论5%CO2吸入CT灌注成像激发试验可以评估脑血管储备能力，具有重要的临床价值。