This application report discusses the design of non-invasive optical plethysmography also called as pulsoximeter using the MSP430FG437 Microcontroller (MCU). The pulsoximeter consists of a peripheral probe combined with the MCU displaying the oxygen saturation and pulse rate on a LCD glass. The same sensor is used for both heart-rate detection and pulsoximetering in this application. The probe is placed on a peripheral point of the body such as a finger tip, ear lobe or the nose. The probe includes two light emitting diodes (LEDs), one in the visible red spectrum (660nm) and the other in the infrared spectrum (940nm). The percentage of oxygen in the body is worked by measuring the intensity from each frequency of light after it transmits through the body and then calculating the ratio BETWEEN these two intensities.
标签： plethysmography non-invasive application discusses
上传时间： 2014-01-17
上传用户：天诚24
Emdros is a text database middleware-layer aimed at storage and retrieval of "text plus information about that text." This information could be linguistic analyses or other annotations. Emdros provides an abstraction of text that makes it well suited to storing /syntactic analyses/ of text, but other linguistic information is supported as well. Emdros comes with a query-language, MQL, that enables powerful queries. Emdros acts as a middleware-layer BETWEEN a client (not provided) and a database back-end. Currently, PostgreSQL, MySQL, and SQLite (2 and 3) are supported, but other back-ends can easily be added.
标签： text middleware-layer information retrieval
上传时间： 2014-01-02
上传用户：wfeel
High volume USB 2.0 devices will be designed using ASIC technology with embedded USB 2.0 support. For full-speed USB devices the operating frequency was low enough to allow data recovery to be handled in a vendors VHDL code, with the ASIC vendor providing only a simple level translator to meet the USB signaling requirements. Today s gate arrays operate comfortably BETWEEN 30 and 60 MHz. With USB 2.0 signaling running at hundreds of MHz, the existing design methodology must change.
标签： technology 2.0 USB designed
上传时间： 2014-01-02
上传用户：二驱蚊器
High volume USB 2.0 devices will be designed using ASIC technology with embedded USB 2.0 support. For full-speed USB devices the operating frequency was low enough to allow data recovery to be handled in a vendors VHDL code, with the ASIC vendor providing only a simple level translator to meet the USB signaling requirements. Today s gate arrays operate comfortably BETWEEN 30 and 60 MHz. With USB 2.0 signaling running at hundreds of MHz, the existing design methodology must change.
标签： technology 2.0 USB designed
上传时间： 2017-07-05
上传用户：zhoujunzhen
GSM (Global System for Mobile communications: originally from Groupe Spécial Mobile) is the most popular standard for mobile phones in the world. Its promoter, the GSM Association, estimates that 80 of the global mobile market uses the standard.[1] GSM is used by over 3 billion people across more than 212 countries and territories.[2][3] Its ubiquity makes international roaming very common BETWEEN mobile phone operators, enabling subscribers to use their phones in many parts of the world
标签： Mobile communications originally Global
上传时间： 2017-07-15
上传用户：电子世界
This should again compile without problems. We finally need to configure a logging system - Hibernate uses commons logging and leaves you the choice BETWEEN Log4j and JDK 1.4 logging. Most developers prefer Log4j: copy log4j.properties
标签： configure Hibernat problems compile
上传时间： 2013-11-26
上传用户：wangchong
不同于k均值聚类的k中心聚类，2007年SCIENCE文章Clustering by Passing Messages BETWEEN Data Points 中的方法
上传时间： 2017-07-27
上传用户：stewart·
Wireless range extenders or wireless repeaters can extend the range of an existing wireless network. Range extenders can be strategically placed to elongate a signal area or allow for the signal area to reach around barriers such as those created in L-shaped corridors. Wireless devices connected through repeaters will suffer from an increased latency for each hop. Additionally, a wireless device connected to any of the repeaters in the chain will have a throughput that is limited by the weakest link BETWEEN the two nodes in the chain from which the connection originates to where the connection ends
标签： wireless range extenders repeaters
上传时间： 2014-01-02
上传用户：zhangyigenius
A certification path is an ordered list of certificates starting with a certificate issued by the relying party s trust root, and ending with the target certificate that needs to be validated. Certification path validation procedures are based on the algorithm supplied in ITU-T Recommendation X.509 and further defined in Internet Engineering Task Force (IETF) Request for Comments (RFC) 3280. Certification path processing verifies the binding BETWEEN the subject distinguished name and/or subject alternative name and the subject public key defined in the target certificate. The binding is limited by constraints, which are specified in the certificates that comprise the path, and inputs that are specified by the relying party. To ensure secure interoperation of PKI-enabled applications, the path validation must be done in accordance with the X.509 and RFC 3280 specifications. This document provides the test assertions and the test cases for testing path validation software against these specifications.
标签： certification certificates certificate starting
上传时间： 2017-07-31
上传用户：清风冷雨
9018的管脚图及三极管的测量方法和NPN\PNP的性质和区别Pin diagram of 9018 and the measurement transistor and NPN \ PNP distinction BETWEEN the nature and
标签： 9018 measurement transistor and
上传时间： 2014-01-01
上传用户：xieguodong1234
