Archive for the 'Guides' Category

Programs like iTunes, Windows Media Player, Zune etc. organize your music collection by updating the tag structure only. These programs often copy your music collection to a designated folder, leaving duplicates spread across your computer. In addition, these programs fail to establish tagging consistency customized to your taste. For example, consider the person who listens [...]

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While in Oklahoma, Oscar had a small cat tree where he spent a large portion of his time. So much time in fact, that the structural integrity was destroyed by his constant jumping, bouncing, and swinging. Our first attempt to replace the cat tree with a hardier, taller model proved to be out of our [...]

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Somehow, my wife and I managed to share a car for the past five years. This arrangment worked because we live in a small town, both work at the University, and are attached at the hip. However, I am about to graduate and will need a car to commute. My wife still has about a [...]

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This article is a follow-up to my previous article to detail how I created my stop-motion film “Passing By.” Choosing Your Subject This part is fairly subjective. For stop-motion films, just about any subject can be entertaining in stop-motion, but in limited quantities. Harping on the same location or subject for a long period of [...]

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Battery Selection Battery life is often measured by cycle life, the number of full charge/discharge cycles before the battery reaches 80% of its original capacity. Keeping the discharge current relative to the battery’s ampĂ—hour capacity low and the discharge shallow improves battery longevity. Typical 12 V sealed lead acid (SLA) cells, like the ones found [...]

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If you are reading this post, you probably are experiencing decreased range and speed on your Go-Ped electric scooter. I too have experienced these problems, but I am going to share some solutions I came up with. I purchased a Go-Ped ESR-750 scooter this summer for transportation in Mountain View, CA for a summer internship. [...]

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There are many ways to measure a dc-dc converter’s inductor current for use in control. Direct-current resistance (DCR) is one low loss and cost method for measuring this current, it consists of a series RC network in parallel with the inductor. The RC network has some advantages over other methods: it has lower I2R losses [...]

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The prices on front-projectors have dropped to levels where they are comparable to rear-projectors and other display technologies.  Office projectors offer a low-cost alternative to the high-end home-theater projectors and provide sufficient color accuracy and usually brighter picture. The problem that deters many buyers from front and rear-projector systems is bulb life, which is typically 2000 [...]

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Design Process In order to better under the digital design process with respect to real-world applications, a two-way traffic light controller was designed. The traffic light operated in two modes: Timed signal changing cycle with weight sensor input The primary mode of operation is the standard timed signal changing. Additional logic was added to implement [...]

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