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心率指心脏每分钟搏动的次数, 它能够反映心脏的工作状态。正常心率决定于窦房结的节律性, 成人静息时约60～100 次/ min , 平均约75次/ min。心率...
心率指心脏每分钟搏动的次数, 它能够反映心脏的工作状态。正常心率决定于窦房结的节律性, 成人静息时约60～100 次/ min , 平均约75次/ min。心率可因年龄、性别及其他因素而变化。初生儿心率约130 次/ min , 随年龄增长而逐渐减慢, 至青春期乃接近成人的心率。女性心率比男性稍快 运动员心率较慢。成人安静心率超过120 次/ min 者, 为心动过速 低于40 次/ min 者为心动过缓。心率受植物性神经和体液因素调节。-Heart rate means the number of pulse per minute, it can reflect the work of the state of the heart. Normal heart rate determined by the rhythm of the sinoatrial node, resting adult is about 60 ~ 100 times/min, an average of about 75 times/min. Heart rate may be due to age, gender and other factors change. Heart rate of newborn infants of about 130/min, growth has gradually slowed down with age, to adolescence adult heart rate is near. Women slightly faster rate than men athletes slow heart rate. Quiet adult heart rate over 120 times/min, and for the tachycardia less than 40 times/min for bradycardia. Heart rate by the plant regulate neural and humoral factors.
- 2022-01-25 17:00:58下载
- 积分：1
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Audio Frequency Noise Generator
Audio Frequency Noise Generator
- 2023-03-19 19:05:03下载
- 积分：1
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最直接的近似是标准高斯近似，W。
The most straightforward approximation is the standard Gaussian approximation, where the MAI is approximated by a Gaussian random variable. This approximation is simple, however it is not accurate in general. In situations where the number of users is not large, the Gaussian approximation is not appropriate. In-depth analysis of must be applied. The Holtzman?s improved Gaussian approximation provides a better approximation to the MAI term. The approximation conditions the interference term on the operation condition of each user.
- 2023-07-24 06:25:03下载
- 积分：1
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基于DVB
基于DVB-SI的数字有线电视机顶盒电子节目指南的设计实现 -DVB-SI based on the digital cable set-top box electronic program guides the design to achieve
- 2022-02-12 14:17:09下载
- 积分：1
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uml look at that design and code
uml看看就知道，设计思想和代码-uml look at that design and code
- 2022-03-18 16:52:10下载
- 积分：1
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This text surrounds the development of the electric power SCADA system exactly,...
This text surrounds the development of the electric power SCADA system exactly, aiming at the present condition of the our country electric power charged barbed wire net currently, according to the oneself at the e- lectric power protect the profession after the electricity in seven years of development, design and adjust to try the experience on the scene from following severals carry on the treatise:Is the emergence to the system of SC- ADA and developments to introduce first Carry on the introduction elucidation to applied present condition and the development foregrounds of various terminal equipments communication agreement(rules invite) the next in order Then is the elucidation to the windows the bottom according to the mfc the plait distance environment an- d VC++6.0 plait distance softwares Carry on the more detailed treatise to the realization of the procedure struct- ure frame and the source code again End is the applied case example give examples.-This text surrounds the dev
- 2022-04-07 10:10:30下载
- 积分：1
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树是由n(n≥0)个结点组成的有限集合T。n=0的树称为空树；对n>0的树，有:(1)仅有一个特殊的结点称为根结点，根结点没有前驱结点；(2)当n>...
树是由n(n≥0)个结点组成的有限集合T。n=0的树称为空树；对n>0的树，有:(1)仅有一个特殊的结点称为根结点，根结点没有前驱结点；(2)当n>1时，除根结点外其余的结点分为m(m>0)个互不相交的有限集合T1,T2，…，Tm，其中每个集合Ti本身又是一棵结构和树类似的子树。
-Tree is n (n ≥ 0) consisting of nodes finite set T. n = 0 of the tree known as the empty tree for n> 0 of the tree, there is: (1) has only one special node called the root node, root node there is no precursor node (2) when n> 1 when, with the exception of root node except the node is divided into m (m> 0) a finite set of mutually exclusive cross-T1, T2, ..., Tm, one of each set Ti is itself a structure and are similar subtree tree .
- 2022-03-19 02:47:57下载
- 积分：1
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用Java和XML建立试题库管理系统,试题库管理系统的设计
用Java和XML建立试题库管理系统,试题库管理系统的设计-use Java and XML to develop Test question storeroom managerment system
- 2022-06-29 22:34:17下载
- 积分：1
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介绍uC/OS
介绍uC/OS-II 在SkyEye上的移植分析.uC/OS-II 作为一个优秀的实时操作系统已经被移植到各种体系结构的微处理器上，也是目前较为常用的公开源码的实时内核。从这里入手学习嵌入式系统开发的基本概念，以及在 SkyEye 里构造一个可以运行的RTOS，能够使我们更深入地了解嵌入式开发的流程，在没有硬件的条件下也能对ARM的体系结构有个初步的认识。-on Phone/OS-II in the transplant SkyEye analysis .uC/OS-II as a excellent real-time operating system has been transplanted to various Architecture microprocessor, It is at present more commonly used open-source real-time kernel. From here start learning embedded system development of the basic concepts SkyEye Lane and the construction of an RTOS can run, enable us to a deeper understanding of embedded development processes, In the absence of hardware conditions can also ARM Architecture is a preliminary understanding.
- 2022-03-26 02:31:16下载
- 积分：1
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LCD TTL signals into LVDS signals to switch programs, uses SN75LVDS81
液晶屏TTL信号转成LVDS信号的方案，使用SN75LVDS81-LCD TTL signals into LVDS signals to switch programs, uses SN75LVDS81
- 2022-10-19 08:00:02下载
- 积分：1
