![]() ![]() The proposed system was validated through a series of experiments. To validate that the new actuator can improve the efficiency of hydraulic systems of mobile robots, a robotic arm incorporating a prototype of the new actuator was designed. The actuator selects the most appropriate combination of the effective areas of plunger pistons like the human muscles, to ensure that the maximal output force aligns with the load force. ![]() The design proposed here represents a new class of driving methods. The proposed actuator consists of a single power source and multiple plunger pistons, and imitates the configuration of a human muscle, to improve the efficiency and load capacities. To improve the efficiency of mobile robots, in this paper, a new kind of actuator that imitates the driving mechanism of human muscles is innovatively designed and validated through experiments. And improving the efficiency of the drive system is a key factor in improving the load capacity. Limited load capacity is the bottleneck for the practical application of mobile multi-joint legged robots. Merits and limitations of the current design are identified. After an analysis of the real on-off characteristics of a valve, a prototype hydraulic switching converter, inspired by the electric DC-DC Buck converter, is presented and its performance in pressure control mode, relative to a classical proportional valve-controlled system, are assessed. "Power hydraulics" is a challenging and little explored technology due to the markedly non-linear behaviour of hydraulic systems and the need of components with dynamic specifications that are not readily available off-the-shelf. One response to this challenge is to revisit traditional on-off hydraulic technology and develop "power hydraulic" devices that behave in analogous manner to their power electronic counterparts. However, the low efficiency of proportional control can be a limitation and it is necessary to go beyond the paradigm of proportional flow/pressure control. In robotic applications where high power density, ruggedness and reliability are key requirements hydraulic actuation can be a sensible choice. Indeed, by analogy it can be seen as the equivalent of resistive (rheostatic) motor control. However despite the sophistication of such valves, from an energetic viewpoint proportional control is dissipative and inefficient. Hydraulic technology evolved in the opposite direction: switching control was not considered, and more and more accurate proportional flow/pressure control devices (servovalves etc) were developed. Over the last 50 years with advances in power electronics, faster and faster static switches have been developed and applied to the control of motors. This paper is concerned with the application of switching technology to hydraulic actuation. ![]()
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![]() ![]() Densen reported that he’d heard about the recipe from members of the band Country Joe and the Fish, which he also managed. In his column “Folk Scene,” the writer Ed Denson presented a “Recipe of the week,” where he described a method of preparing banana peels for smoking by scraping out the white pith and drying it out in an oven before rolling it up in a joint. Wherever the hoax originally started, it was a short piece in a March 1967 issue of the counterculture magazine Berkeley Barb that seems to have kicked off the wider craze. Donovan would later state definitively that the song was actually written about a yellow vibrator, but lyrics such as “Electrical banana / Is gonna be a sudden craze / Electrical banana / Is bound to be the very next phase,” didn’t help. Nonetheless, the rumor quickly gained traction based on word of mouth.Ĭoincidentally, in early 1967, the Scottish songwriter and recording artist Donovan’s song “Mellow Yellow” was making its way to the U.S., and at the time, many people assumed that it was about smoking banana peels. Realizing that bananas also contain serotonin, the eager hippies invented the concept of smoking bananas.įor the record, while it is true that bananas contain some amount of serotonin, it is too slight to cross the blood-brain barrier. ![]() ![]() According to Krassner’s version of the myth’s origin, the editors of the paper were discussing the mechanics of LSD and serotonin in the brain, and then began to wonder if something more natural could produce the same effect. That’s why people fell for it.”Īs relayed in an extensive 2012 article by the Local East Village about the history of the craze, the counterculture publisher Paul Krassner claims that the rumor began in the publishing offices of The East Village Other. ![]() Bananas were cheap, so if banana scrapings worked, this would be a really cheap high. “But pot cost money, and hippies had little money. It was a highly experimental era driven perhaps most by LSD and by growing pot use,” says the historian William Rorabaugh, who’s written multiple books about the 1960s including American Hippies. “Young people in the ’60s were looking for new ways to get high. Rumors of bananas as narcotics began swirling around the hippie scene in the mid-1960s. But few of these viral blips approach the lasting influence, and outright silliness, of that time in the 1960s when people started smoking banana peels. Even today, mythical ways of getting high, from the gross-out nonsense that was Jenkem to the digital absurdity of “ i-dosing,” are still popping up in the popular consciousness. One of the oldest coffeeshops in Amsterdam is called "Mellow Yellow".Anybody got a light? Alexas_Fotos/Public Domainĭrug scares are a dimebag a dozen, but the hysteria surrounding fake drugs is always fascinating to behold.He also clarifies Paul contribution to the song: you can hear him cheering at the end of the song, with other people gathered in the recording studio. Although it has been said that the words "quite rightly" in Mellow Yellow are whispered by Paul McCartney, in his autobiography The Hurdy Gurdy Man Donovan claims it was actually him, not Paul.Marion Bloom's buttocks, but it's not known if Donovan got the phrase from there. The words "mellow yellow" appears on page 719 of the first American edition of Joyce's Ulysses, where it is used to refer to Mrs.The controversial lyrics ("electrical banana") actually refered to a yellow vibrator. But Donovan's notes in the album clarify the origins of the rumor: it was started by Country Joe McDonald in 1966, and Donovan learned about it three weeks before the release of Mellow Yellow single. It was rumored that the song was about smoking dried banana skins, which was believed to be a hallucinogenic drug in the 1960s.Shawn Phillips: sitar on Sunny South Kensington.Tony Carr: percussion on Sunny South Kensington.Eric Ford: electric guitar on Sunny South Kensington.Danny Thompson: bass on Sunny South Kensington.John Cameron: arrangement and keyboards on Sunny South Kensington.Danny Moss and Ronnie Ross: horns on Mellow Yellow.John Paul Jones: bass and arrangement on Mellow Yellow.Paul McCartney: uncredited backing vocals on Mellow Yellow. ![]() ![]() ![]()
And on its download page there is a note warning you that MakeMKV is not signed by Apple. Sadly, you can tell from its name that this free DVDFab alternative will only allow you to output an MKV file.Ĭonverting DVD to AVI, MP4, MOV, FLV can't be realized using it. Common functions like preserving chapters information and track languages are included. ![]() It rips both Blu-rays and DVD to MKV and can cope with encrypted Blu-ray and DVD copy protection. MakeMKV is another good alternative to DVDFab. And EaseFab provides timely and excellent customer support service, including lifetime free upgrade of product and technical support. LosslessCopy comes with tutorials, FAQs and a knowledgebase on its official website. Moreover, with the best alternative to DVDFab, you will instantly experience the latest and most advanced technologies, including but not limited to Passthrough, HEVC, 4K, etc., and it will always keep updating to support the newest releases and devices. Plus, LosslessCopy's price tag is fairly low, and we definitely think it's worth it. It means you don't have to contend with in-app ads and upsells, and you get advanced features you wouldn't find in free Blu-ray rippers. Having to pay for Blu-ray ripping software isn't all bad though. Dvdfab media player alternative full version#The use the full version on one Mac for one year, you'll pay $27.95. Dvdfab media player alternative movie#You can try out LosslessCopy for free, but you can only convert 3 minutes worth of a Blu-ray movie at a time. ▶ With the Intel QSV and NVIDIA CUDA powered hardware acceleration, the conversion is processed on GPU instead of your computer's CPU and you can convert a full Blu-ray or DVD disc to H.264 MP4 as short as 10 minutes. 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LosslessCopy is able to convert DVD/ Blu-ray to MP4, AVI, MKV, MOV, FLV, MPEG MP3, AAC, M4A and other mainstream video/audio formats. ▶ It provides 320+ different digital formats for Blu-ray/DVD ripping. ▶ Easily handle Blu-ray discs with AACS encryption, BD+ and the latest MKB technology and decrypt DVDs with CSS, RCE, Sony ArccOS, UOPs, Disney X-project DRM and so on. ※ For macOS 10.14 or lower, you can also Download 32-bit installer here ↓Īs a DVDFab substitute for DVD & Blu-ray ripping, EaseFab LosslessCopy earns its award in many aspects, such as: Dvdfab media player alternative download for windows#Free Download for Windows 11 or lower Free Download for macOS Monterey or lower ![]() ![]() So your sunken ship or ditched airplane is not likely to be found and the conspiracies about aliens and wormholes start to run rampant. Which means when things do sink there, they are not easily found. Most of the sea floor is as far down as 19,000 feet, some areas over 27,500 feet. ![]() ![]() Then there is the depth of the trenches in this area of the ocean. But correcting along an agonic line would actually have led them astray. Your compass points to magnetic north, but there are these things called Agonic Lines which line up magnetic and true north and along these your compass is Truly (pun intended) accurate. One such line runs from Lake Superior and down through the Gulf of Mexico.īack in the days before GPS, when pioneering navigators relied on compasses and stars (which they couldn’t see because of all the bad weather), they would have potentially corrected for Magnetic to True. You all know this, but the Earth’s magnetic pole isn’t quite in the same spot as True North. It is a fairly major shipping route between the East Coast of the US and the Gulf of Mexico, and in more modern times it has become a fairly busy area for aircraft too.Īnother explanation offered up by science is to do with magnetism. The high numbers of events can also be put down to the high amount of traffic that routes through this region. And the Turkish Airlines flight was a fairly uneventful malfunction and diversion. The investigations into Flight 19 and Amelia Earhart’s disappearance both concluded that poor weather, a loss of situational awareness regarding their actual positions, and ultimately running out of fuel were most likely to blame.įlight 19 was attributed to the Flight Leader mistaking the Bahamas for the Florida Keys, a broken compass and the fact that the advice for if you got lost in the area back then was to just “take up a heading of 270”. Aside from TK183 and a few light aircraft accidents, all the rest generally took place between the 1940s and 1970s. Read through the list of sea and air incidents and accidents and you will notice something – the vast majority of events happened last century. It gained its name from an article written back in 1964, which started with an attention grabbing hook – And of course the famous Amelia Earhart’s final flight was rumored to have gone down in this general location. Routing from Istanbul to Cuba, they ended up making a diversion to Washington Dulles. Flight 19 was a squadron of five Torpedo Bombers that disappeared in the area. Down in bermuda keys series#In 2017, a Turkish Airlines A330-200 experienced a series of electrical and mechanical malfunctions while routing over the Triangle. ![]() Somewhere in the region of 50 ships and 20 airplanes since folk started paying attention. These might be tall tales, but in fact is has been the location of a higher-than-its-fair-share of naval and aviation disappearances, and random technical malfunctions too. Some say it is haunted, some say aliens use it as a human abduction point, others reckon it is home to an immense Kraken that swallows ships whole… It has a reputation for disappearances – sinking ships and vanishing airplanes, dots on the radar that are gone in a blink, never to be seen again. An oldish map of the Bermuda Triangle Why do we talk about it in Aviation? ![]() ![]() ![]() This also transcends into the way we develop some of our games and we constantly have a take a step back and dial down the complexity and make it accessible and easy. Games in the modern days have gotten unreasonably complex for some reasons and that usually worries me to a point I just cannot fathom the trend. #DESERT COMBAT BATTLEFIELD 1942 DOWNLOAD MODS#Games or MODs like these simply prove that ideology. It is one of those classic design ideologies where when you have a fun mechanic that plays like a dream, visuals never fully matter. The feel of Desert Combat in many ways is like a CS 1.6 ( I am not comparing them directly) where the simplistic feel and a well crafted mechanics is what that makes the game so addictive. You really need to plan your choice of vehicles for the combat and orchestrate them accordingly. You immediately notice that heft with an Apache or more so with the Black Hawk and it takes it sweet little time to respond to the inputs and you need to plan your moves ahead. You fly a Little Bird which is super agile and quick to respond and then jump into an Apache or a Black Hawk, you find that stark contrast on how they behave. There are remarkable differences between each of the aircraft and the helicopters on how they take off and behave while in air. The way the controls work between WASD and the Mouse to control the pitch is magical. Given the age of the game and the lack of sophisticated animations, the game would appear clunky but tear that layer apart you have a great game underneath. You just need to bear with that initial learning curve. The helicopter and the Aircraft is sort of a love it or hate it affair in Desert combat but once you get a hang of it, it feels damn right and you would have a blast flying it and taking out enemies from above. ![]() I remember reading that the Modders never had an underlying mechanic to base the Helicopter mechanics off (why would they, since the World wars never had Helicopters in combat) and had to rely on the Plane’s physics and tweak it to the extent it felt right. I am yet to see a modern game that offers the simplicity and depth of Desert Combat and that’s why it still keeps winning my heart. ![]() There aren’t too real (which would make it boring in my opinion) and aren’t too arcady as well and has that right sweet spot. The mechanics with the tanks, fighter jets, helicopters have that magical touch to them. What amazes me to this date is how well it plays. This was never achieved by simply switching out the original weapons with modern ones, but by painstakingly creating them and balancing them, every single aspect of it. Imagine taking a World War based shooter and doing a complete overhaul by incorporating modern weapons, modern vehicles/Aircraft and to top it all, a super slick Helicopter whose mechanics never existed in the original version. #DESERT COMBAT BATTLEFIELD 1942 DOWNLOAD MOD#So what makes it special ? Well, for starters the MOD re-imagined the original game completely from the ground up and made it look like an all new game with no traces of BF1942 seen. In a way yes, but for a grand scale of Multiplayer action, I always lean on to Desert Combat, the MOD created out of Battlefield 1942. Of course many would argue Counter Strike would still take that spot. To me this is hand down one of the best MODs created for a Multiplayer. ![]() ![]() ![]()
![]() ![]() ![]() It’s kind of like Homeworld series where you press space to view the scenario. ![]() While the supply is endless, you need to be able to generate enough resources for your expanding unit and base.īy the way, Supreme Commander doesn’t allocate a portion of the screen to have a minimap instead you get to view the map of the entire scenario by using the mouse-wheel to zoom outwards. The focus of Supreme Commander is on the ACU (the commander unit) and resources are based on mass and power (electricity). Just like Total Annihilation, Supreme Commander is one of the really rare games that don’t require you to continuously send your harvesting units to collect resources. You could always engage in an early assault, or you could rush for heavy artillery or nuclear missiles, you could even send in a few Tech 4 units with powerful Tech 3 units accompanying it. With the formation move, your units could reach there almost all at once thus increasing the survival rate for your units and allowing it to actually do some damage.Īttacking an opponent is more than just sending a bunch of units, as I mentioned earlier there’s ’seemingly limitless tactics for combat’. Don’t under-estimate this feature, a typical RTS would send all your units going almost in a single file and it’s practically suicidal. The game allows employing seemingly limitless tactics for combat, for example you could instruct your 200 bombers to move in a various formations. Note that those who played Total Annihilation before would most probably pick up the game very fast after all it’s just a better Total Annihilation. □ Sometimes I’ll just get them to construct a bunch of generators or defence structures while I look into other more important matters. Unlike games like StarCraft or Command & Conquer : Generals, the construction units in Supreme Commander are able to accept build-queues for structures – this means you can actually instruct the unit to build an Extractor at point A, travel to point B, build a generator, travel to point C, build 5 fabricators in the shape of a 5Ã-5 cube – it’s incredible!! No more worries about the unit staying idle upon finish an instructed task, well at least not so often. ![]() Unlike any other RTS before, Supreme Commander offers a wealth of features that I’ve not come by in any RTS so far. And those are just a few examples of the available Tech 4 units each race has more than 1 Tech 4 unit. The number of unit available for each Tech level depends on the race you’re using.Īll of the race have Tech 4 experiment units and believe me, appropriate tactical usage of these units could tip the tide of the combat, for example the Aeon has the Colossus that sports a very heavy armor, the Cybrans have a mobile artillery unit that rips your base apart should it get into firing range while the UEF has a mobile factory that deals powerful blows while being capable of producing units. Even with a Tech 1 air factory, you get 3 types of air units already. And when I say choose, I don’t mean the measly 2 or 3 (or 1 or none) air units available like those found in Command & Conquer series. Gunships? Destroyers? YES! you are given an array of ground, air and naval units to choose from. They build similarly but their units and structure vary in offensive and defensive capability, for example the Cybrans have Destroyer ships that could walk on land while the UEF has Tech 3 Gunships that are horribly powerful. Just as any other RTS games, each race has its strengths and weaknesses. ![]() ![]() Maximum radiator configuration: 1x240mm,1x280mm and 2x120mm radiators simultaneously.Fractal Design Node 804 FInal Thoughts and Conclusions Radiators in this position limits the height of memory modules to 48 mm tall.
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