![]() ![]() Ĭheck out issue 17 of Hello World to read the rest of James’s article and find out all the details about the hardware and software his students used for this passion project. Students discovered that wind data is relatively easy to get over a larger area, but the key component would be something to measure CO2. The students started by looking at existing weather station projects - for example, there is an excellent tutorial on the Raspberry Pi Foundation’s projects site. ![]() This then evolved into a system where students could work much more at their own pace and eventually led to a point at which older students could, in effect, learn through their own projects, such as the pollution monitor. I began flipping the less difficult theory for students to do as homework, to create more programming time in class where we could resolve issues more quickly. I initially started doing this because when I set coding challenges for homework, I often had students who confessed they spent all night trying to solve it, only for me to glance at the code and notice a missing colon or indentation issue. I was able to offer students support with this project because I flip quite a lot of the theory in my class. This enables more class time to be used to answer questions, work through higher-order tasks, or do group work, and it creates more supervised coding time. Flipped learning is a teaching approach in which some direct instruction, for example reading articles or watching specific videos, is done at home. I agreed to support them during allocated programming time, and to help them reach out to other schools.Ĭircuit design of the CO2 sensor using just Raspberry Pi, designed on circuito.io They had had some experience of using Raspberry Pi computers, and knew that it was possible to use them to make weather stations, and that the latest versions had wireless LAN capability that they could use. Three of my students approached me with the idea of tracking CO2 to give schools a better idea of when there was pollution and which way it was going. This project was much more than this: it was a genuine passion project in every sense of the word. This project was a genuine passion project in every sense of the word. The other benefit is that it is something to talk about in university essays and interviews, especially as they often need to do extensive research to solve the problems central to their projects. I’ve always encouraged my students to do their own projects, because it gives programming tasks meaning and creates something that they can be genuinely proud of. We also realised that if we had measurements from around the city, we might have some visibility as to when pollution was likely to affect our school. My Year 12 students (aged 16–17) followed the news and weather forecasts intently, and we all started to see how the winds from Singapore and Sumatra were sending pollution to us in Kuala Lumpur. The air pollution from a forest fire gets dispersed by winds and can spread way beyond the area of the fire.
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The Android app also offers some channel analysis in addition to the AP details and signal graphs. The Office edition adds a channel table that shows some useful analysis, such as overlapping, and the analyze page shows alerts on potential issues, like low signal or weak security. All InSSIDer editions show the near-by APs and usual list of details and graphs of channel usage for both the 2.4GHz and 5GHz bands. Plus they offer a Mac OS X app ($4.99) and a free Android app. For InSSIDer they offer two Windows editions: a free Home edition and a more advanced Office edition. ![]() InSSIDer is a free Wi-Fi stumbler from MetaGeek, the maker of the Wi-Spy spectrum analyzer and many other network products. It supports GPS positioning, shows hidden network SSIDs, and detects known and default AP configurations. It supports distributed remote sniffing with Kismet drones in a client/server modular architecture. It supports standard PCAP file logging, which can be exported to Wireshark, Tcpdump, and other popular network protocol analyzers. It works with any wireless card which supports raw monitoring (rfmon) mode, but there are limitations when used in Windows. Kismet is a wireless network sniffer, analyzer, stumbler and intrusion detection system that can run on multiple platforms, including Linux, Mac OS X, and Windows. It also features some powerful filtering functions, decryption support for many protocols, and offers VoIP analysis. It supports reading/writing from/to many different capture file formats and supports exporting to a few different formats. It can capture and/or show the data packets for Ethernet, Wi-Fi, Bluetooth, and other hundreds of other network protocols, depending upon the platform and network adapter you’re using. Wireshark (Formally Ethereal) is a popular network protocol analyzer. Here you’ll discover free network sniffers, analyzers, and stumblers for Windows, Mac, Linux, and even Android. You can use them during site surveys, installs, troubleshooting, and even auditing. There are many commercial network tools out there offering all the bells and whistles, but sometimes a simpler product will do the job. This includes health and savings benefits, educational opportunities and special extras that only Disney can provide.Manufacturing and Production Technicians use their hands and tools to fabricate and assemble complex prototypical mechanical and electrical systems that support the designs created by their Design and Integration colleagues. Our Benefits: Disney offers a rewards package to help you live your best life. 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![]() RyanSmithAT: I'm super excited about this (as is ).But the biggest factor is going to be when games stop being designed to… ![]() RyanSmithAT: PC being on-board helps a lot.gavbon86: Selling me a sub with ads at a lower price only turns my disappointment into loathing in all honesty.gavbon86: I mean, I've poured a cheeky vodka while this SSD test runs.What am I? īut credit to NVIDIA where due for (eventually) doing the right thing and not selling their AD1… gavbon86: This is what a winner looks like, but not what a winner feels like.Specs and product info for the 12GB SKU has already bee… RyanSmithAT: NVIDIA's been quite quick about this "unlaunching" as well.While the SE2717H is not the cheapest FreeSync-supporting monitor around, at 1080p with a 27” panel and a 75 Hz maximum refresh rate (as opposed to 60 Hz in case of cheap screens), theses advantages that are going to attract the attention of potential buyers. The addition of AMD’s FreeSync technology to a budget display indicates that this feature should start to roll out to standard gaming monitors rather than a remaining premium capability. The display has one HDMI 1.4 input (which makes it one of the first FreeSync-supporting screen with an HDMI input) as well as a D-Sub to connect to older PCs. To appeal to gamers, it supports AMD’s FreeSync dynamic refresh rate technology in the range between 48 Hz and 75 Hz, which is standard for monitors in this class. The SE2717H display is based on a 27” 1920x1080 IPS panel with a peak brightness of 300 nits as well as 178°/178° horizontal/vertical viewing angles. it is going to be available starting from August 16 for $250. Right now, it is not completely clear when this monitor is set to be available in Europe, but in the U.S. The monitor looks to be a budget solution for gamers, as it costs HK$1799 (about $232) in Hong Kong and does not boast a high-end specification. Up next is the Dell SE2717H, which the company recently added to its U.S. Specifications of Dell's S2417DG and SE2717H Displays ![]() The very decent dynamic refresh rate range between 30 and 165 Hz in the WQHD form factor is a large factor in the cost of the monitor. The price of the Dell S2417DG is not listed by the supplier, but TFTCentral reports that the product will cost $570 when it is available later this quarter, which is $100 below its bigger brother, the S2717DG. In addition, the S2417SG has a quad-port USB 3.0 hub as well as an ultra-thin bezel for setting up multi-monitor arrangements. For inputs, the monitor has DisplayPort and HDMI connectors to allow gamers to switch between a PC and a game console. Since this one uses a TN panel, this display is not aimed at professionals and exchanges refresh rate for color accuracy and viewing angles (it supports 170°/160° horizontal/vertical. Moreover, with such high peak refresh rate, it is possible to use the monitor for stereoscopic 3D gaming using NVIDIA’s 3D Vision 2 glasses. The key advantage of the S2417DG display for gamers is support for NVIDIA’s variable refresh rate G-Sync technology, allowing dynamic refresh rates between 30 and 165 Hz, which is a very decent range for a WQHD monitor. The S2417DG is based on a 23.8” TN panel with a 2560×1440 resolution, a peak brightness of 350 nits as well as a 1000:1 contrast. The Dell S2417DG is a monitor that the supplier recently added to its web-site in various locals but not via an official press release at this point. The products belong to the entry-level and mainstream segments. One of the monitors uses a full-HD (1920x1080) IPS panel with a refresh rate up to 75 Hz, whereas the other has a WQHD (2560x1440) TN panel with a refresh rate up to 165 Hz. Dell has quietly expanded its lineup of gaming displays with two new monitors featuring dynamic refresh technologies from AMD and NVIDIA. ![]() Generate completely random, hard-to-memorize passwords. Will disable the phomeme-based generator and uses the random May be easily available from the ~/.history or ~/.bash_historyĭon’t use the specified characters in password. If you use this option, make sure the attacker can not WARNING: The passwords generated using this option are not very Possibles passwords for your pop3 account, and you can ask this Later, if you remember the file, seed, and pwgen’s options used. It will allow you to compute the same password Will use the sha1’s hash of given file and the optional seed toĬreate password. This is theĭefault if the standard output is a tty device. Include at least one number in the password. Words are printed by columns, and one password otherwise. C Print the generated passwords in columns. The default if the standard output is a tty device. Include at least one capital letter in the password. Have bad vision, but in general use of this option is not recom. Number of possible passwords significantly, and as such reduces Printed, such as ‘l’ and ‘1’, or ‘0’ or ‘O’. This option doesn’t do anything special it is present only forĭon’t use characters that could be confused by the user when 1 Print the generated passwords one per line.ĭon’t bother to include any capital letters in the generated When standard output (stdout) is not a tty, pwgen will only generate one password, as this tends to be much more convenient for shell scripts, and in order to be compatible with previous versions of this program.ĭon’t include numbers in the generated passwords. This prevents someone from being able to “shoulder surf” the user’s chosen password. ![]() Used interactively, pwgen will display a screenful of passwords, allowing the user to pick a single password, and then quickly erase the screen. Hence, its default behavior differs depending on whether the standard output is a tty device or a pipe to another program. The pwgen program is designed to be used both interactively, and in shell scripts. On the other hand, completely randomly generated passwords have a tendency to be written down, and are subject to being compromised in that fashion. Without the -s option should not be used in places where the password could be attacked via an off-line brute-force attack. In particular, passwords generated by pwgen Human-memorable passwords are never going to be as secure as completely completely random passwords. The pwgen program generates passwords which are designed to be easily memorized by humans, while being as secure as possible. Update: I have since moved to Homebrew since Mac Ports did not upgrade in time for one of the macOS updates. I use Mac Ports only because it was the one I ran since I moved to macOS over 6 years ago. On macOS, you will need either Homebrew or Mac Ports. To run this in Linux, you can use your package installer of choice: apt-get install pwgen I ran the selected password through multiple password strength testing sites and although I got different responses, the password is generally safe with my normal 60 day password reset policy. In my example, I am saying to run ‘pwgen’ without ambiguous letters (not to be comnfused with other letters like ‘0’ (zero) and ‘O’ (the letter)), include symbols, include numbers, include capital letters, and use the option for ‘hard to guess’ password. I can choose any of them or even multiple ones and concatonate them. In this example, I am creating a bunch of random password based on 23 characters.Īs you can see in the results, I have created random passwords. Depending on the size and complexity I need for my password, you can modify it via the command line. ![]() I used to use this back in my Linux days. When I need to generate a random password, I use an opensource package named pwgen. ![]() speed 328 Attack range 550 Attack speed Base AS 0.647 Attack windup 19.2 AS ratio N/A Bonus AS +1. (per 5s) 8+0.8 Armor 18+4.7 Attack damage 53+3 Magic resist. Base statistics Cassiopeia Edit Health 630+104 Mana 350+60 Health regen. This is how the constellation took its name, resembling the torture chair that was used for Cassiopeia's punishment. Cassiopeia is a champion in League of Legends. Unhappy that Cassiopeia was not punished, Poseidon tied her to a chair in the heavens, so that she would revolve upside down half of the time. However, Perseus managed to save her and kill the beast he then married Andromeda. Consulting an oracle, Cepheus and Cassiopeia had to sacrifice Andromeda in order to appease the wrath of Poseidon they chained her daughter to a rock next to the sea as a sacrifice to Cetus. LoL Statistics, Guides, Builds, Runes, Masteries, Skill Orders, Counters and Matchups for Cassiopeia when played undefined. According to other sources, he did not send a monster, but caused the lands to flood. As a result, Poseidon was infuriated and sent the sea monster Cetus to plague the coasts of Aethiopia. Vi vs Cassiopeia Build - LoLalytics has the best Vi Jungle vs Cassiopeia Middle Build & Runes Guide for Patch 12.17. Very beautiful and vain, she committed hubris by saying that she and her daughter Andromeda were more beautiful that the daughters of the sea god Nereus, called the Nereids. Cassiopeia Mid Build (Patch 12. We have calculated the highest win rate item build, best runes for Cassiopeia, mythic items, skill order, full item build, starting items, summoner spells, item build order, trinkets, and counters. It's a champion that will reward you based on your skill level, so you can always be relevant with her even when she's out of meta. METAsrc Champion Build Guides for League of Legends are based on statistical analysis of the latest match data, so you can trust that our stats are unbiased and always up to date. If the enemy is poisoned, they take an additional 20 / 40 / 60 / 80 / 100 (+60 of ability power) magic damage and Cassiopeia restores 10 / 11.5 / 13 / 14.5 / 16 ability power as health. We have calculated the highest win rate item build, best runes for Cassiopeia, mythic items, skill order, full item build, starting items, summoner spells, item build order, trinkets, and counters. Cassiopeia launches deadly fangs, dealing 52-120 (+10 of ability power) magic damage (depending on level). ![]() She has insane DPS and full 6-item lategame scaling thanks to her passive. Welcome to the METAsrc statistical Cassiopeia build guide, Jungle 11.22. However, one is prevalent in the myths of ancient Greeks.Ĭassiopeia, the queen of Aethiopia, was the wife of King Cepheus, daughter of Coronus and Zeuxo. Welcome to the METAsrc statistical Cassiopeia Nexus Blitz build guide, Jungle 11.13. Cassiopeia has been among the strongest midlaners since item changes was introduced to mages. Cassiopeia or Cassiepeia is the name given to several characters in Greek mythology. ![]() He has since become a Magma Wyrm, lurking beyond the frozen river in the Consecrated Snowfield. Theodorix was once a Troll, and a hero of the War against the Giants.If one is having trouble with one or the other, try luring them into fighting each other. Trolls found in the Flame Peak use Flame incantations, and are often fighting Giant Crows.These often contain Smithing Stones and Somber Smithing Stones. They are capable of destroying the glowing blue statues found across the world.This variant is also plentiful around the Yelough Anix Ruins. A Frenzied Troll at Mt Gelmir, in front of the entrance of the Volcano Manor, uses frenzied attacks.After taking enough damage (around 50% of their health) Trolls will start using their sword (if they have one) which will change their moveset.There is a Silver Tear that transforms into a Troll at the end of Night's Sacred Ground.Shooting a troll in the head with a projectile will stun them for a few seconds.Trolls are susceptible to Hemorrhage which makes it a good option to whittle their large health pool.Magic is a safe option for dealing with them, even when their health pools are rather high. Trolls have high resistances and deal significant Area-of-Effect damage with their stomps, which can also knock you back.There are also four Snow Trolls hauling two Carriages in the Consecrated Snowfield, though these do not drop any Arteria Leaves. They use Fire Giant Incantations (needs confirmation). They use a Troll's Golden Sword to fight, but do not drop it. Snow Trolls can be found on Flame Peakfighting Giant Crows and Giant Dogs. However, this leaves them wide open for several moments if you are directly underneath, beside or behind one. They are unarmed, but can use Frenzied Flame Incantations on a large area in front of them. Ruins, although there is one outside the entrance to Volcano Manor. A Troll Knight in the flesh can be found in Caria Manor, not far from the fight with Royal Knight LorettaOne blue summoned Troll Knight can be found north of the Liurnia Highway North Site of Grace, down the northwest path.įrenzied Trolls can be found in the Yelough Anix Troll Knights use Sorceries such as the Greatblade Phalanx (a giant version) and can be found in Liurnia of the Lakes three headless spectral Troll Knights can be found in the middle of the path from the base to the top of the hill The Four Belfries are situated on (these can still drop their sword). There is also one in Redmane Castle that jumps in front of the front gate when the player approaches it has a flaming sword. There is another with a detached chain-and-spike through it's chest just outside the entrance to Old Altus Tunnel as well as another on the opposite side of the small valley. One with a detached chain-and-spike left in it's chest can be found in Liurnia of the Lakes, north of the broken Carriage containing the chest for Treespear, which is on the north end of the broken bridge northeast of Stormveil Castle. ![]() They can be found in many above ground places in the Lands Between pulling Carriages. The report can also be used to apply for insurance policy extensions and is also often required by service providers at the end of a turbine’s design life. This allows operators to determine the continued operational costs and risk of failure against the cost of replacement or even decommissioning. This is known as a lifetime extension assessment and includes both theoretical and practical analysis, such as on-site inspections and the evaluation of design load data.Ī status report will detail the maintenance requirements, from which an accurate estimate of the cost of wind turbine lifetime extension can be generated. These assessments will determine whether continued operation is possible and when any components may need replacing to extend the life of the overall structure. This requires the condition of the asset to be assessed and compared with the expended lifespan of the turbine, based upon the expected loads and fatigue as well as environmental factors for the wind energy site. The lifecycle of a turbine can be extended through careful monitoring and maintenance. As a moving component, the rotor blades are subject to higher levels of loading and fatigue, and can also suffer damage from birds or other objects striking them as well as the impact of high wind speeds or lightning strikes. Wind turbine blades need a special mention, as they are particularly prone to damage. ![]() These include a variety of different parts and components, from wind turbine blades to wiring and hydraulic systems. In addition to these environmental factors, there are the usual concerns for any structure based around fatigue failure from use over the lifespan of the asset. These conditions are site specific and include average wind speeds, turbulence intensities and (for offshore wind farm operators) the cyclic loading of foundations, jacket structures, and monopiles caused by waves. One of the primary factors that determine the lifespan of a wind turbine are the environmental operating conditions faced by the wind industry. This can reach levels almost 100 times greater than the design loads at rated wind speed, which is why many turbines are designed to shut down to protect themselves at higher wind speeds.įactors That Determine the Lifespan of a Wind Turbine and What Damages Wind Turbine Blades? Of course, as the wind speed increases, so do the loads that turbines are subjected to. ![]() This is partly due to the structure of the turbines themselves, since the turbine blades and the tower are only fixed at one end of the structure and therefore face the full force of the wind. Wind turbines are unlikely to last much longer than this because of the extreme loads they are subjected to throughout their lives. However, the maintenance costs will increase as the structure ages. National Structural Integrity Research CentreĪ good quality, modern wind turbine will generally last for 20 years, although this can be extended to 25 years or longer depending on environmental factors and the correct maintenance procedures being followed. ![]() Structural Integrity Research Foundation. |
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