![]() ![]() The OGD device provided particle counts and total signal response that were well correlated with sand trap data (R² between 0.66 and 0.88). The approach uses the highly time resolved signal from these sensors, which consist of a light emitter and a photosensitive sensor.Ī specific OGD that is manufactured by Optek (Carrollton, Texas, USA) was tested in a sediment transport wind tunnel alongside trap-style devices. Despite continuing improvements, currently available devices for field measurement of sand movement have limitations.Īn optical gate device (OGD) for detecting the movement, size, and possibly speed of individual sand grains during aeolian sediment transport was analyzed. Through sand blasting during saltation, large amounts of dust are ejected into the atmosphere and transported long distances, impacting climate and human health. Movement of sand in response to wind is the most important feature of aeolian sediment transport on Earth and other planets. "My emulators have always been open-source, and you can find the source code for them on my GitHub page," he adds, wrapping up. "I feel privileged," he reveals, "to be able to be a small part of this scene."īyuu has currently emulated 24 systems spanning 12 different architectures. ![]() Working as a developer in emulation has, Byuu says, proved a constant challenge that has helped him grow both professionally and as a person. "I'm the author of bsnes, a Super Nintendo emulator, and higan, a multi-system emulator," he explains, "and have been developing emulation software for over 15 years." His primary focus, he says, is on systems programming. Additional datasheets, meanwhile, focus on Microchip 93LC46, 93LC56, 93LC66, 93LC76, and 93LC86 NEC uPD7720, uPD7725, and uPD96050 and Toshiba TMP95C061F.Ī computer programmer with more than two decades of experience, Byuu has been employed as a software engineer for the past 13 years. The website also hosts datasheets for Bandai WonderSwan, WonderSwan Color, and SwanCrystal Nintendo Super Famicom, and Super Nintendo Entertainment System SNK Neo Geo Pocket, and Neo Geo Pocket Color and Nintendo Game Boy Color. These are 'Cartridges,' 'Compact Discs,' 'CPUs,' 'Video,' 'Audio,' 'Game Bugs,' and 'Advice.' "This latter piece of technical writing," Byuu reveals, "is simply titled 'Video: Color Emulation.'"īyuu.net currently centers around seven primary sections. The leading emulator developer also explores a powerful technique to keep both video and audio synchronized under emulation in a piece titled 'Audio: Dynamic Rate Control,' completes a deep-dive into the issues facing emulators when ROM images omit vital information about the PCBs they're contained upon in a piece titled 'Cartridges: Printed Circuit Boards,' and offers an expert look into what goes into emulating the colors of different retro gaming screens, and why it's important. Technical articles already published include 'Advice: We Stand on the Shoulders of Giants,' which contains words of inspiration for aspiring emulator developers, 'Game Bugs: Super Nintendo,' a list of SNES game bugs that occur even on original hardware, and 'Compact Discs: Disc Structure,' a look into the data that's stored on CD-ROMs, how that's encoded into CD image files, and a proposal for a more complete CD-ROM archival format. Through, Byuu plans to provide free technical writings on how to develop emulator software, promising various in-depth articles and resources dedicated to the development of software emulators.
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