Brands having a blog have more traffic and leads. Create blog if your brand don't have any and start writing high quality content about your product & services. Tell users about your brand. It helps in increasing traffic, Improves author rank with content marketing as well as in brand value creation. Link your blog to your website to pass page rank.
# Don't Forget Link Building
別忘了“連結” ,幫你的資料建立有效連結,確保他暢通
Link Building was one of the traditional approach for SEO, but things have changed now. Google is penalizing websites building unnatural links so prepare quality links. Read : Quality Link Building Tips for 2014 Avoid guest posting as Google consider it as a spam. If you are writing something high quality, unique concept and want people out there to know about it then you can write guest posts. Build links with relevant sites, Avoid using exact match anchor text for external links and various forms of anchor texts for link building. Don't Miss : How to remove unnatural links penalty from website
1. EMG or Muscle wave: generally from 80~3000Hz with most energy at 100Hz
2. Super beta (β) or gamma (γ) wave: from 30~150Hz with most energy between 60~100Hz, associated with visual processing
3. Beta (β) wave: from 12~40Hz with most energy between 20~30Hz
4. Spindles or Sigma (σ) wave: generally from 12~14Hz
5. Alpha (α) wave: generally from 8~12Hz with
6. Theta (θ) wave: generally from 4~8Hz, associated with drowsiness. It is a transitional wave, with few distinctive features.
7. Delta (δ) wave: generally from 0.5~4Hz, associated with deep sleep or deep relaxation. It is often in the form of strong pulse train with varying intervals, and thus often covers through δ, θ, α wave bands when it occurs.
[Please note that this is a cached copy from the Wayback Engine as Doug's site apparently dropped off the 'net in 2003; hopefully he'll show up again some day! Until then, enjoy his research. --Jim] Biopotential Technology
https://nime2015.lsu.eduhttps://nime2015.lsu.edu
NIME 2015 NIME (New Interfaces for Musical Expression, nime.org) is the premier conference in designing human-computer interfaces and interactions for musical performance. NIME gathers researchers and practitioners around lectures, installations, concerts, and workshops. This year we welcome you to Louisiana State University for NIME 2015.
P&SEMG-Biofeedbackgerät:Wichtige Links! (EMG = Elektromyographie) Blockschaltung anzeigen (Klicken auf Foto) Einführung und Zielsetzung
Jede Muskelaktivität kommt durch elektrische Aktionspotentiale der Muskelnervenfasern zustande. Diese bioelektrischen Signale können mittels Elektroden gemessen, anschliessend verstärkt, gefiltert und für Forschungszwecke genutzt werden. Sie eignen sich aber ebenso für EMG-Biofeedback-Anwendungen. Als Feedbackmethoden kommen meist akustische und optische zum Einsatz. EMG-Biofeedback wird bei gewissen Myopathien (Muskelerkrankungen) therapeutisch erfolgreich eingesetzt. Zwei solcher Fälle habe ich bei einem Einsatz im Zürcher Universitätsspital in den 1970er-Jahren mit einem von mir gebauten zweikanaligen EMG-Biofeedback-Gerät mitbetreut. In beiden Fällen konnten signifikante Verbesserungen der Gesundheit der Patienten festgestellt werden.
Molekulare und cytologische Grundlagen: Bau des Neurons, Informationsverarbeitung, Neuronen-Typenvielfalt, Zusammenwirken von Neuronen, Ruhepotenzial und Na+/K+-Pumpe, u.v.a.
Elektro-Myographie (Dr. Manfred Schneider): Thematisiert wird die Messung mit Oberfächenelektroden und die intramuskuläre Messung mit Nadelelektroden. Weitere Themen: Neurographie und Elektro-Neurographie.
Elektronik Grundlagen Bauelemente Schaltungstechnik Elektronik Minikurse Digitaltechnik Computertechnik Kommunikationstechnik Netzwerktechnik Sicherheitstechnik Raspberry Pi
Folge uns Das Buch zu dieser Webseite Operationsverstärker und Instrumentationsverstärker Kundenmeinung:
Mein Lob gilt der übersichtlichen und schönen Darstellung und der guten didaktischen Aufbereitung. Selten werden Schaltungen so gut erklärt, dass es auch noch Spaß macht sich damit zu beschäftigen. Jetzt bestellen! Das Buch zu dieser Webseite
Timer 555 Kundenmeinung: Hätte ich das Timer-Buch schon früher gehabt, dann hätte ich mir die Rumfrickelei am NE555 sparen können. Das Timer-Buch jetzt bestellen! Service Schule und Ausbildung Elektronik-Praxis Schaltungen Datenblätter Transistor-Vergleich TTL-Code SMD-Code Das Buch zu dieser Webseite Elektronik-Fibel
Kundenmeinung: Die Elektronik-Fibel ist einfach nur genial. Einfach und verständlich, nach so einem Buch habe ich schon lange gesucht. Es ist einfach alles drin was man so als Azubi braucht. Danke für dieses schöne Werk.
Elektronik-Fibel jetzt bestellen!
Echter Differenzverstärker IV:
EMG-Vorverstärker Deluxe mit INA111
Elektronik-Minikurse: Inhaltsverzeichnis WICHTIG: Diverse technische Infos
Jonathan Ward jonathan (dot) ward (at) cba (dot) mit (dot) edu (c) Massachusetts Institute of Technology 2009 Permission granted for experimental and personal use. License for commercial sale available from MIT. 一個pcb 雕刻機 專案 分享 相當詳細 從 元件 電路 組裝 工程圖 都有資訊 提供 你可以 自造 一個pcb 雕刻
Here are some nifty little projects that are useful for tasks in the workshop or home, as well as some that are more decorative. Some of the articles help beginners with simple circuits, whereas others delve into details on specific microcontroller chips.
Model Rocket Launch Controller The secrets to a successful launch controller are thick cables, power through a relay, and a beefy battery (such as a lead-acid motorcycle battery). Learn what is inside a low-end commercial rocket launcher, how to make your own simple launch controller, and take a look at a fancy rocket controller that includes covered pilot switches and a switch lock.
Rocket Ignition System The problem with most model rocket launch controllers is that the battery is located with the operator, far away from the launch pad. This requires thick cables and wastes significant energy. By locating the battery near the rocket engine and using a remotely-controlled relay, the improved launch system is more efficient but can still be built at home. Includes complete schematics, the pcb layout, and source/object code.
Weather Station Logging six temperatures and solar activity at one minute intervals around the clock using a 4 megabyte serial flash chip. The observation results are graphed to demonstrate weather conditions over multiple days in the Chicagoland area. Ran into some problems with a broken wire, overheating project box, shadows, and exposed sensors.
Weather Station Charts With the do-it-yourself weather station recording data for over six months, let’s see what can be discovered about the temperatures, sunlight, moonlight, and activities in the backyard, home office, and kitchen of a home in the suburbs of Chicago.
Water-Softener Brine-Tank Salt-Level Monitor If you have hard water, did you ever forget to add salt to the water softener tank? This electronic device monitors how full the tank is using a Sharp DP2D12 infrared distance monitor. The results are displayed on a custom wall plate with a multicolor LED bar graph. The project also includes several photosensors to save power.
Miniature Surface-Mount LED Ring Light Ring lights provide shadowless all-around lighting that is particularly useful for close-up work such as macro-photography and circuit-board inspection with a magnifying glass. This project also includes instructions on soldering surface-mount electronic components and machining a circuit board into a ring (round/circular/donut) shape.
Halloween Pumpkin with Colorful LED Candles Extensive tutorial on putting blinking LEDs and different colored LEDs into jack-o-lanterns. Includes schematics, solderless breadboard photos, and three movies (the blue pulsing LED is my favorite). Great way of getting started in electronics! Although this was written for Halloween, the techniques are applicable for Christmas votive candles as well.
Standalone LED Tester Description and schematic for a constant-current LED tester. It safely lights up standard through-hole and surface mount LEDs, while providing easy access to current and voltage measurements.
Dual Fan Controller A birthday present gone too far. An overengineered temperature-based automatic twin fan controller with brass face to keep a kitchen PC cool.
Fighter Pilot Safety-Cover Toggle Switch See how an illuminated toggle switch works by breaking one open and putting it back together. Most of these are automotive switches, which need 12 V. The circuit schematics on the second page of the article show you how to shift voltage levels from 12 V to 5 V, and 5 V to 12 V. A microcontroller can read the switch state and blink the LED.
Trimpots A visual guide to breadboard-friendly trimpots (small variable resistors) that appear in nearly every hobbyist electronic project. The article features comparison pictures and part numbers of 3/8-inch and 1/4-inch square single-turn and multi-turn trimmers. Even more interesting is the cutaway close-up photographs of the inside gears and brushes of these tiny potentiometers.
AVR Studio 4 and the STK500 To write firmware to an Atmel AVR microcontroller, you need a computer, free AVR Studio software, a hardware interface, and a little bit of knowledge. This tutorial shows how to obtain, install, set up, and write a HEX file to an ATtiny chip using the STK500 programming board. Covers fuse bits, jumper positions, ISP frequency, and target voltage.
Trimming the Internal Clock on a KX8 Microcontroller Example algorithms for manually or automatically tuning the oscillator on the internal clock generator of the popular MC68HC908KX8 microcontroller. Also includes batch test results and a video.
Analog Comparison, Digital Result Comparators are very useful for comparing two analog voltages and providing a digital result. In this case, if the light source is dim, a red LED is enabled. If the light source is bright, a green LED is enabled. However, once comparators are understood, they can be useful for driving small robots or helping a microcontroller.
Multi-Segment LED Display Lite-On LTM-Y2K19JF-03 is a surprisingly good LED display with alphanumeric, numeric, and icon LEDs. The LED module includes all driver circuitry -- no additional transistors or resistors are necessary. The article also describes how to create and edit a 14-segment alphanumeric LED font using Excel.
Serial Communication A very popular method of sending and receiving data between devices and computers is good old asynchronous serial communication. See traces of characters being transmitted. Learn how far timing can be off before introducing errors. Includes a table of popular crystal frequencies and baud rates, as well as machining information and a source code snippet for an automatic bps detection tool.
Atmel TWI Explains an I2C multi-master bus issue on the Atmel AVR 8-bit microcontrollers. Shows logic analyzer traces of TWI (two-wire interface).
Infrared Transmitter Project The heart of this project is a NAND gate turned into a 40-kHz oscillator. A simple 9-volt to 5-volt regulator circuit schematic is also included.
Robot Books
Robot Building for Beginners by David CookThis book is for readers who like the schematics, photographs, and style of Robot Room, but who have been looking for complete step-by-step instructions or a beginning project. Robot Building for Beginners consists of all new material that doesn’t exist on this web site. Highly recommended. Teens to adults. Here’s a detailed look at the chapters.
Intermediate Robot Building by David CookA second book, also in the style of the Robot Room website and the first book. Presents a second robot that can be built with or without programming. All new material not presented on this site, plus greater in-depth material on the topics that receive the most questions on RobotRoom.com:
Junkbots, Bugbots, & Bots on Wheels by Dave Hrynkiw and Mark W. TildenTruly an excellent book from very talented builders!
Tons of clear photographs with complete instructions for multiple robots and related experiments. Lots of tips and tricks.
There are two things I like most about this book: First, the authors concentrate on recycling as many techno-trash parts as possible, which overcomes the cost barrier that many robot hobbyists encounter. Second, the designs are extremely different from the two-wheeled robots that I tend to build. Their fascinating (yet easy to build) robots are much like insects in appearance, movement, and behavior.