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  • This application report discusses the design of non-invasive optical plethysmography also called as

    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.

    標(biāo)簽: plethysmography non-invasive application discusses

    上傳時間: 2014-01-17

    上傳用戶:天誠24

  • GNU_Radio GNU radio is a free/open-source software toolkit for and the con

    GNU_Radio GNU radio is a free/open-source software toolkit for and the content is controlled by a handful of organizations. Cell building software radios, in which software defines the phones are a great convenience, but the features your phone transmitted waveforms and demodulates the received supports are determined by the operator s interests, not yours. waveforms. Software radio is the technique of getting code A centralized system limits the rate of innovation. Instead of as close to the antenna as possible. It turns radio hardware cell phones being second-class citizens, usable only if problems into software problems.

    標(biāo)簽: open-source GNU_Radio software toolkit

    上傳時間: 2017-06-27

    上傳用戶:拔絲土豆

  • Steganography is the art of communicating a message by embedding it into multimedia data. It is desi

    Steganography is the art of communicating a message by embedding it into multimedia data. It is desired to maximize the amount of hidden information (embedding rate) while preserving security against detection by unauthorized parties. An appropriate information-theoretic model for steganography has been proposed by Cachin

    標(biāo)簽: Steganography communicating multimedia embedding

    上傳時間: 2017-07-29

    上傳用戶:

  • QualNet Sensor Networks Library QualNet’s new Sensor Networks Library is a much awaited feature

    QualNet Sensor Networks Library QualNet’s new Sensor Networks Library is a much awaited feature set that supports the IEEE 802.15.4 standard, otherwise known as Zigbee. Zigbee networks are Wireless Personal Area Networks (WPANs) that are defi ned by a low data rate, long battery life, and secure networking. Zigbee networks support automation and remote control

    標(biāo)簽: Networks QualNet Library Sensor

    上傳時間: 2017-07-30

    上傳用戶:CSUSheep

  • a carrier sense multiple access with collision avoidance (CSMA/CA) based MAC protocol, called nano

    a carrier sense multiple access with collision avoidance (CSMA/CA) based MAC protocol, called nanoMAC, suitable for low bit-rate, low-power wireless devices with high efficiency

    標(biāo)簽: avoidance collision multiple protocol

    上傳時間: 2017-08-28

    上傳用戶:小寶愛考拉

  • RSA ( Rivest Shamir Adleman )is crypthograph system that used to give a secret information and digit

    RSA ( Rivest Shamir Adleman )is crypthograph system that used to give a secret information and digital signature . Its security based on Integer Factorization Problem (IFP). RSA uses an asymetric key. RSA was created by Rivest, Shamir, and Adleman in 1977. Every user have a pair of key, public key and private key. Public key (e) . You may choose any number for e with these requirements, 1< e <Æ (n), where Æ (n)= (p-1) (q-1) ( p and q are first-rate), gcd (e,Æ (n))=1 (gcd= greatest common divisor). Private key (d). d=(1/e) mod(Æ (n)) Encyption (C) . C=Mª mod(n), a = e (public key), n=pq Descryption (D) . D=C° mod(n), o = d (private key

    標(biāo)簽: crypthograph information Adleman Rivest

    上傳時間: 2017-09-01

    上傳用戶:chfanjiang

  • 卡爾曼濾波在AVR單片機(jī)的應(yīng)用

    卡爾曼濾波在AVR單片機(jī)的應(yīng)用,引腳接法:PC1 (ADC1) Y Accel (Pin 8) PC2 (ADC2) Z Accel (Pin 7) PC3 (ADC3) X rate (Pin 3) PC4 (ADC4) Y rate (Pin 4) PC5 (ADC5) VRef (Pin 5)

    標(biāo)簽: AVR 卡爾曼濾波 單片機(jī)

    上傳時間: 2013-12-13

    上傳用戶:dengzb84

  • 16qam

    調(diào)制解調(diào)課程設(shè)計 16QAM調(diào)制解調(diào)代碼。包括星座圖,頻譜分析,誤碼率分析。-16QAM modulation and demodulation curriculum design code modulation and demodulation. Including constellation, spectrum analysis, bit error rate analysis.

    標(biāo)簽: qam 16

    上傳時間: 2016-05-02

    上傳用戶:ylqylq

  • 16qam

    主要是實(shí)現(xiàn)調(diào)制識別,區(qū)分幾種常用的數(shù)字調(diào)制信號,包括ASK,FSK,PSK,QAM。含有兩個文件夾 其一為特征參數(shù)的仿真;其二為正確識別率的仿真。 文件夾key feature simulink中: 運(yùn)行程序會得到各特征參數(shù)之間區(qū)分圖 從圖中可看到特征參數(shù)的有效性。 文件夾classification rate simulink中: 運(yùn)行main.m文件 可以得到正確識別率 

    標(biāo)簽: qam

    上傳時間: 2016-05-02

    上傳用戶:ylqylq

  • 鋰硫電池隔膜

    Lithium–sulfur batteries are a promising energy-storage technology due to their relatively low cost and high theoretical energy density. However, one of their major technical problems is the shuttling of soluble polysulfides between electrodes, resulting in rapid capacity fading. Here, we present a metal–organic framework (MOF)-based battery separator to mitigate the shuttling problem. We show that the MOF-based separator acts as an ionic sieve in lithium–sulfur batteries, which selectively sieves Li+ ions while e ciently suppressing undesired polysulfides migrating to the anode side. When a sulfur-containing mesoporous carbon material (approximately 70 wt% sulfur content) is used as a cathode composite without elaborate synthesis or surface modification, a lithium–sulfur battery with a MOF-based separator exhibits a low capacity decay rate (0.019% per cycle over 1,500 cycles). Moreover, there is almost no capacity fading after the initial 100 cycles. Our approach demonstrates the potential for MOF-based materials as separators for energy-storage applications.

    標(biāo)簽: 鋰硫電池 隔膜

    上傳時間: 2017-11-23

    上傳用戶:653357637

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