![]() However, it’s worth to point out that many modern LSM implementations in the database field have something in common: Sorted String Tables. Stating that something is implemented as an LSM Tree doesn’t necessarily say anything about the lookup complexity, or even the internal file layout, only about the conceptual structure. In this light, it’s worth mentioning that, even though LSM Trees are often contrasted with B-Trees, this comparison is not strictly accurate, my highlight here is that LSM Trees allow immutable, mergeable files and the nature of the primary index for the table is a matter of implementation (therefore, even B-Trees can be used as index data structure here). The seminal LSM paper suggests an implementation of the disk resident trees similar to the B-Tree, with the difference that it’s optimized for sequential disk access and the nodes can have a full occupancy (we’ll discuss the occupancy in more details when discussing B-Trees). Let’s start with the Log Structured Merge Trees, as the concept is quite straightforward. We’ll be discussing the examples of mutable and immutable storage when looking at LSM-Trees (Log Structured Merge Trees) and B-Tree variants. Of course, the exact scope of work done by the housekeeping process heavily depends on the concrete implementation. ![]() On the other hand, mutable files may have to be rewritten partially or completely to decrease fragmentation, merge overflow areas and reclaim space occupied by updated or deleted records (as their new contents were written elsewhere). Since amount of allocated files constantly grows, immutable data structures have to merge and rewrite files in order to make sure that the least amount of files is hit during the query, as the requested record might be spread across multiple files. In contrast, mutable data structures employ hierarchical locks and latches in order to ensure on disk data structure integrity, allow multiple readers at the same time but give exclusive ownership for parts of tree to writers.īoth mutable and immutable data structures require some housekeeping in order to optimize performance but for different reasons. Another advantage of immutable files is that data can be read from the disk without any segment locking between operations, which significantly simplifies concurrent access. All of this might slow down both subsequent reads and writes. While this is a nice compromise, sometimes writes fill up all the designated space and overflow areas have to be created. Some databases, instead of doing in-place updates, just mark the outdated record as “deleted” (so that it will eventually be garbage-collected) and append new records to the specially designated update area of the file. After some time, randomly written file might require defragmentation. Some structures require node splitting, that will relocate already written parts. The mutable data structure will be pre-allocated in a single pass, but the subsequent writes will be random. Keeping the data structure immutable favors the sequential writes: data is written on disk in a single pass, append-only. The obvious advantage of the immutable data structures is that the storage overhead can be minimized: we do not have to reserve any extra space for data that is going to be inserted later or for the cases when the updated records require more space than the originally written ones. Here, we’ll be talking about the mutability on disk, so semantics of construction and functional programming related concepts aren’t relevant for the purpose of our discussions. One of the differences between the data structures we’re going to be discussing over the next chapters is mutability (or lack of thereof). ![]() Each of them have their own advantages and disadvantages, so building a database system is always about trade-offs and we’ll try to address some of those as well. Today we’re going to explore one of the types of storage often used in the databases. ![]() Now, it’s time to start moving towards higher level concepts. In the first and second parts, we’ve discussed underlying Operating System mechanisms that help to perform writes on disk. New series on Distributed System concepts in Databases can be found here. If you like the series, check out my book on Database Internals! ![]()
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![]() ![]() There are three editions of Ultra Fractal to choose from. To sum it up, all the tools you need to create beautiful fractals are right there for you to use, you just need to know how to use them. There are several fractal types built into the application and you can download thousands more you can import PNG, JPEG, or BMP images to use in your fractals you can color fractals, add transparency effects, use layers and masks, and tweak various parameter values. This application’s interface and its functionality can be a bit difficult to comprehend by the novice computer user a learning curve will have to be overcome, and the help topics will help you with the climb.Īs mentioned above, the main functionality Ultra Fractal has to offer is to help you create beautiful fractal art – images and animation. The help topics are very useful in helping you get started with Ultra Fractal and the functionality it has to offer. Your options are to choose between starting Ultra Fractal, seeing what’s new in the latest version of Ultra Fractal, opening tutorials to understand how to create fractal art with Ultra Fractal, and learning more about the workspace and the tool windows. You can also install it on top of Windows 98, ME, 2000, 2003, as these operating systems are also supported.Ī “Welcome to Ultra Fractal” screen will show up when you launch Ultra Fractal and it will ask you what you want to do. It is recommended that you install Ultra Fractal on top of Windows XP, Vista or Windows 7. Once the download completes, run the installation file and a setup wizard will guide you through the installation process. The Frederik Slijkerman installation file weighs in at 6.3MB. This is an advanced fractal animation software application that you can use to come up with some good looking fractal images or some eye-catching fractal animations. ![]() It takes a bit of work to come up with fractal art, but the truth of the matter is that it will seem more like fun when you go about it using the Ultra Fractal application. ![]() ![]() ![]() Each preset comes with a small description. Presets are a way to start very basic rulesets chosen from a small list. Starting a firewall configuration from scratch can be hard. Every option has an icon that appears also on services visual representation. You can manage them manually or let Murus decide what to do.Īdvanced filtering options are grouped in a small popover view. This tool helps you configuring Murus giving you a view over your Mac current open ports. Each rule features a dynamically generated comment that explains the rule's presence and purpose.Ĭheck and manage your local listening ports. Rules are represented by icons and by text. This view helps understanding the current PF ruleset. Use the free multiplatform Murus Knocker client to access hidden services from remote computers. Hide your public services from port scanners and unauthorized access using port knocking. Supports Worst-case Fair Weighted Fair Queueing policy (WF2Q+). These limits can be applied to managed services and NAT groups. This allows the user to set a fine-tuned logging policy in order to produce a very data consistent and informative log file.Ĭreate Dummynet Pipes and Queues to selectively limit download and/or upload bandwidth. ![]() Choose between inclusive or exclusive filtering, fine tune all filtering rules, define the global filtering policy.Ĭhoose the global logging policy, then define a per-service policy. Drag and drop Services and Groups to allow services and to assign access permissions. Use built-in Groups and Services or create your own. Deploy PF configuration to a large number of Macs with one mouse click Access a very large set of advanced networking features and options including bandwidth management Powerful custom rules system lets you create fully customized PF rulesets Visualize PF configuration using simplified layers of abstraction Create firewall rules managing graphic objects Easy firewall configuration using the Wizard Unleash the hidden power of PF, the OS X packer filter Protect your Mac using tools already built into OS X With its easy and intuitive icons-based and drag&drop-based interface, visual layers of abstraction and a friendly view of the PF firewall it's a lean and mean tool to protect your Mac and network.ĭesigned with ease of use in mind, yet full of advanced options and monitoring tools, Murus is perfect for everybody from the average user to the experienced UNIX guru/system administrator and even for educational purposes.Ĭonfigure and start the PF firewall in one click using built-in presets, use Murus graphical ruleset editor design tool or write fully customized rulesets using the advanced rule editor. Murus' purpose is to unleash its potential. It comes in an "under the hood" fashion, installed and disabled by default. OS X features one of the best network firewalls: PF (Packet Filter). ![]() ![]() On the downside, its L-Mount lens system isn't as fully-formed as rivals Canon or Sony. For the price, it's also hard to beat the full-frame 24MP photos and 10-bit 4K we really love the way the S5 handles, too. The Panasonic Lumix DC-S5 is one of the more affordable full-frame cameras available and we especially like its extra-wide 20-60mm kit zoom, which is particularly useful for cityscapes, landscapes, and vlogs. We also see the EOS R7 as a good backup camera for pros with an EOS R5 or R3, as well as SLR holdouts looking to upgrade from an EOS 7D or 90D series body. Family photographers may miss a built-in flash, however, and should look at the EOS R10 or Fujifilm X-T30 II instead. As a main camera, the R7 is versatile enough for landscape and studio work, too, while video is an option for cinema projects. The R7 is a good fit for photo enthusiasts and pros alike, especially those with an eye for action photography and a need for 15fps subject tracking. Weather-protected, magnesium construction makes the R7 a camera you can take out into the world. The 32.5MP APS-C format image sensor matches well with telephoto lenses, offers plenty of resolution for crops, and supports 4K60 video for cinema and vlogs. And the R7 excels at identifying people, pets, wildlife, and race cars. The Canon EOS R7 is a mirrorless camera tailor-made for photographers who want to capture sports, wildlife, and other subjects that call for fast, accurate autofocus. How to Set Up Two-Factor Authentication. ![]() ![]()
![]() Free users get just 5GB and use of the web versions of Microsoft Office.Īpple device owners familiar with iCloud Drive may know that the free storage allotment there is a measly 5GB. A single user account is $6.99 per month or $69.99 per year. Microsoft also gives you the installable Office productivity applications, Teams, premium Office templates, Family Safety features, and support by phone and chat. You get a slight discount if you pay annually rather than monthly for a Basic, Standard, or Premium plan.įor comparison, a $9.99-a-month or $99-per-year Microsoft 365 account gets you 6TB of OneDrive storage-1TB each for six people (compared with 2TB from Google for the same price). All plans can be shared among five family members and friends. Higher price plans go all the way up to $149.99 per month for 30TB of storage. If you're interested in the VPN service, you need the $9.99-per-month (or $99.99 per year) Premium plan, which brings 2TB of storage and increases your discount at the store to 10%. The $2.99-a-month (or $29.99 per year) Standard plan bumps storage up to 200GB and you get a 3% discount in the Google Store on Pixel phones, Nest smart home devices, and other products. You get the bonus photo-editing tools we just mentioned in the Google Photos mobile app, as well as support via phone and text chat. Google One's Basic plan increases your space to 100GB and costs $1.99 per month or $19.99 per year. In other words, when you become a paying customer for extra storage space, Google throws in a few additional benefits, such as photo editing tools, a mobile VPN service, and discounts on Google products. Google One is nothing more than a bundle of services. If you need more storage space, you have to pay for a Google One account. For free, you get 15GB of space, which is generous compared with what you get for free with other storage services. It doesn't cost anything to sign up for a Google account and start using Google Drive. That way, if you have to buy a new computer or fully wipe and reset your computer, you can get all your files back. If your computer ever suffers a data loss (anything from a hardware failure to a house fire to ransomware), all the files you saved using Google Drive are safe and available to you to access or download from the Google Drive website. When you set up Google Drive locally, it saves and syncs any files you tell it to. In addition to using the service as the default save space for all your Google-related files, you can install the Google Drive desktop client to run locally on your device as a file-syncing and storage solution, much the same way Microsoft OneDrive or Dropbox can. The online storage you get is shared among documents you create there or save to there, plus Google Photos, and Gmail, including email attachments. Read our editorial mission (Opens in a new window) & see how we test (Opens in a new window). Since 1982, PCMag has tested and rated thousands of products to help you make better buying decisions. When you create a new Google Doc, it automatically saves to Google Drive. If you use Google Workspace, you can think of Drive as one part of the whole suite, alongside other specific apps such as Google Docs, Sheets, Slides, and so forth. Google Drive is the file storage and syncing component that comes with any Google account. It's an Editors' Choice for file storage and syncing. Google Drive is truly impressive in how it can help you store, back up, create, and even edit files, whether you work solo or as part of a team. Paid plans, which add extra storage space and other perks, are branded as Google One, and you get a lot for your money. ![]() ![]() Consumers can specify any folder on their device for backup and save space by not duplicating files on local storage. ![]() You can use Google Drive to store documents you create online as well as to back up files on your computer. It's also an integral part of a full, collaborative office suite. Google Drive is much more than just a cloud-based storage and syncing service with an excellent free storage plan. How to Set Up Two-Factor Authentication.How to Record the Screen on Your Windows PC or Mac.How to Convert YouTube Videos to MP3 Files.How to Save Money on Your Cell Phone Bill.How to Free Up Space on Your iPhone or iPad.How to Block Robotexts and Spam Messages. ![]() ![]() ![]() Introduction to Vanishing Gradient Problem.Master of Business Administration Degree Program. ![]() Design Thinking : From Insights to Viability.NUS Business School : Digital Transformation.PGP in in Product Management and Analytics.PGP in Software Development and Engineering.PG Diploma in Artificial Intelligence – IIIT-Delhi.Advanced Certification in Software Engineering.PGP in in Software Engineering for Data Science.Advanced Certificate Program in Full Stack Software Development.Advanced Certification in Cloud Computing.Executive Master of Business Administration – PES University. ![]()
![]() You can now control the remote device remotely. Confirm the access request on the remote device.Ĥ. The proprietary software program provides platform independent. Enter the AnyDesk-ID that is displayed on the remote device.ģ. AnyDesk is a closed source remote desktop application distributed by AnyDesk Software GmbH. Install and launch AnyDesk on both devices.Ģ. AnyDesk for Windows - Download it from Uptodown for free Windows / Internet / Communication / Remote Control / AnyDesk AnyDesk 7.1.8 AnyDesk Software GmbH 4.1 7 7.3 M A faster remote desktop is possible Advertisement Latest version 7.1. Download the latest AnyDesk version for all platforms here: ġ. AnyDesk is one of the fastest and most comfortable remote desktop applications. ![]() Whether you're in IT support, working from home, or a student studying remotely, AnyDesk's remote desktop software has a solution for you, allowing you to connect to remote devices securely and seamlessly.ĪnyDesk offers a wide range of remote desktop functions such as:Įvery operating system, every device. Anydesk This application offers you the opportunity to regulate more than one computers remotely AnyDesk could be the fastest remote desktop software in the. ![]() Secure and reliable, for IT professionals as well as private users.ĪnyDesk is ad-free and free for personal use. The proprietary software program provides platform independent remote access. ![]() Whether you're in the office next door or on the other side of the world, remote access via AnyDesk makes the connection possible. AnyDesk is a remote desktop application distributed by AnyDesk Software GmbH. ![]() ![]() Dictionary works on tablets and phones and is refreshingly free from annoying ads and paid upgrades. There is also a "word of the day" with our pick of the most interesting and entertaining words in the English language. And we managed to keep data offline without needing a massive app download. It also works well if you only have an intermittent network connection because the definitions are stored offline, locally on the device. You can see your word history and revisit definitions, or make your own list of favourite words to help build up your vocabulary. The speech function helps provide the correct pronunciation. Definitions include synonyms and antonyms which allows the dictionary to also serve as a thesaurus. Wildcard characters can be used to help with word games like crosswords and scrabble where only some of the letters are known, or you have to find an anagram, or with spelling. Then you can follow the links in the definition page to get more word definitions. As you type, Dictionary homes in on the word you are looking for. The home page contains a randomly selected word cloud which will pique your curiosity and help you improve your vocabulary, while the search box allows you to find specific words easily. ![]() ![]() The dictionary definitions are stored locally, and because it's ad-free there's no need for a network connection. ![]() Dictionary is ideal for both native English speakers and English learners or people studying the English language. Dictionary is a free offline English dictionary containing over 200,000 words and definitions and no ads. ![]() ![]() ![]() If you have upper body mobility, tie the neck strings behind your head. Slip your arms into the sleeves and pull the gown up to your neck. If you are wearing a straight up-and-down gown, then grab it and turn it so it completely covers your front (unless your doctor has instructed you to wear it otherwise). Now, it’s time to actually put on the hospital gown. Place your clothing where they direct you to so you can easily find them later when it’s time to take off the hospital gown.īy Suthiporn Hanchana / Put on the hospital gown. Follow the staff’s instructions for how much to disrobe before putting on the hospital gown. If the doctor is only examining your top or bottom half, you might be able to leave on your shirt or pants and then simply drape the hospital gown over the rest of your body. In many cases, you will be able to leave on your bra and/or underwear, unless otherwise noted by the doctor. Shop Post-Surgery Clothing Take off the least amount of clothes necessary.īefore you can put on a hospital gown, you need to take off your clothes. Each style of hospital gown requires slightly different directions for donning it, which is why it’s important to know which type of gown you will be wearing. This style offers more coverage for patients but can reduce access for medical practitioners and hamper quick action. There is also a wrap style hospital gown that features two fabric panels that overlap at an angle. Most patients put this side in the back because having it in the front makes them feel more exposed, but in some cases, the doctor will have you put it on with the gap in the front for easier access. If you have the straight up-and-down style gown, it will have two panels that meet in the middle on one side. There are two main types of hospital gowns: a straight up-and-down style and a wrap style. Here are our four top tips for putting on a hospital gown without getting into a snarl of fabric: Know what type of gown you are wearing. This is a wardrobe staple of hospital clothes for patients, yet few have mastered the art of donning a hospital gown. Hospital gowns are a simple garment, yet oh-so-tricky to put on (and take off). ![]() ![]() ![]() From what I have seen with Mask AI it just can not do what Remask could. It’s possibly the best way to mask complex images and transparent images (in particular) on the market.īut this latest release, Mask AI? I just don’t understand Topaz’s product development. In any case, you can download a fully functional 30-day trial of the software at Topaz Labs website or purchase it for US$ 99.99.I have been an avid user of Remask for a longtime. If you rarely need to work with masks, the investment will not be worth it. It will improve your efficiency and will be totally worth the investment. If you find yourself spending a big chunk of your time with masks I highly recommend that you try out Topaz Mask AI. You can either use the built-in edge refinement settings that Mask AI provides or use different blending modes in Photoshop to get rid of the stray areas in Photoshop. With complex images, you will be left with some fine-tuning to do. However, what it does is gives you a jump start by doing most of the heavy lifting for you. This is the core reason why even Mask AI was not being able to deliver 100% in auto mode. Depending on what kind of image you’re working with, masking can turn out to be an incredibly difficult task. What Topaz Mask AI is aiming to do is definitely not an easy task. I just instructed Mask AI to keep the sandy patch by painting green over it, and the output came out all right. But I didn’t understand why the feature confused a portion of the sandy surface for the sky. Mask AI did an excellent job of getting rid of the sky thanks to the solid edge contrast between the sand dunes and the sky. I used a very simple image to try out this feature and yet the outcome left me surprised – not in a good way though. Using the auto-detect sky feature, you can easily get the software to either get rid of the sky or even have it replaced. ![]() With most of the job already done by the software’s artificial intelligence, I just needed to fine-tune the settings and build on this to get the desired result.Īnd if you are a landscape photographer, Topaz Mask AI has one more feature that you will love. However, considering the complicated nature of the image, this is indeed a great job. The tail of the sparrow has been left out, and the branch where the bird was perched is still intact. I made sure that the background and the foreground were a bit busy in order to push the software to its limits.Īs you can notice, the result is not perfect. To challenge this feature, I tried masking the sparrow out of the following image. If you want to make your workflow even quicker and skip the manual process, you can try your hands with an auto mode that auto-detects the subject. If I’d tried to do it manually in Photoshop, it would’ve been a really painstaking task for sure. Quite surprisingly, the software was able to create a mask through individual strands of hair. I was really impressed when I tried the masking technique in an image where the subject had some fuzzy hair. The better you outline the edges, the higher the chances of getting a better selection around your subject. In my experience, you’d really want to be careful when using the blue brush. And outline the edges of your subject with blue. To indicate what you want to cut out, fill it with red. You can tell what regions you want to keep by painting it green. Topaz Mask AI uses the concept of trimap for masking. It’s a one-payment full photo editing suite that allows some very quick and powerful edits. If editing is taking you too long then check out Topaz Studio 2 (see our review here). Topaz creates products by talking to users, finding their problems, and solving them. The apps play very well together to make your work so much easier. This way you don’t have to jump between applications manually. While you’re working in Photoshop, you can easily open the image in Topaz Mask AI through the Filter menu, and once you’re done with the mask in Mask AI, you can again have it open and ready in Photoshop. Topaz Mask AI integrates seamlessly with Photoshop. The software does the rest and gives you a head start in perfecting the mask.Īnd don’t worry if you are dependent on Photoshop to edit your photos. Using this software, is just a matter of outlining your subject. Topaz Mask AI promises to help you create tricky masks in record time using an intuitive machine learning technology and trimap technique. If you’re really tired of spending hours to get your mask right, Topaz Labs has a solution for you. The software doesn’t really assist you much in the process. But, in order to achieve perfect masking, you really need to spend quite a lot of time with those tools. And you can get your job done with those options. Adobe Photoshop has quite an array of masking tools available in its arsenal. ![]() |
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