搜索优化
English
搜索
Copilot
图片
视频
地图
资讯
购物
更多
航班
旅游
酒店
房地产
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
过去 30 天
时间不限
过去 1 小时
过去 24 小时
过去 7 天
按相关度排序
按时间排序
Analog
29 天
基于MUSIC的算法利用腕上光电容积 脉搏波(PPG)信号提供按需心率估算
心率(HR)监测是许多现有可穿戴产品和临床设备的关键特性。这些设备一般测量光电容积脉搏波(PPG)信号,为获得该信号,须利用LED照射人体皮肤,然后用光电二极管测量血流引起的反射光强度变化。PPG信号形态与动脉血压(ABP)波形相似,这使得该信号成为受科学 ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
今日热点
Commuting 1,500 sentences
FBI director resigning
Reveals cancer diagnosis
Biden's nominee rejected
Laments loss of privacy
NZ reverses visa refusal
Director of Voice of America
On Iran 'mothership' claim
AZ sues over water pumping
Taliban minister killed
Meta donates $1M to Trump
Vows to 'fight to the end'
Time's Person of the Year
Invites Xi to inauguration
Granola bars recalled
Storm slams East Coast
Undergoes 2nd procedure
Franklin Fire rages
Hit by cyberattack
TPG co-founder dies at 82
Urges global debt relief
Wholesale inflation surged
US asks court to reject bid
Jobless claims rise to 242K
Helene bill veto overridden
Nasdaq diversity rules axed
House approves defense bill
UNC hires Bill Belichick
Former US Rep. Leach dies
To stream live on Hulu
Alexander brothers arrested
反馈