However, Carlos Camara, a postdoc in Putterman’s lab, says that there’s no need to worry about exposure while wrapping your holiday gifts: the high-energy radiation is only produced when the tape is peeled under vacuum conditions. Proper Tape Removal From the sharpest lines to the easiest cleanup, tape removal is an important step in your painting project. Scotch tape is a clear sticky tape that is sold in rolls and that you use to stick paper or card together or onto a wall. Free shipping on many items Browse your favorite. Credit: Juan Escobar and Carlos CamaraĪccording to the UCLA work, published in the journal Nature this week, unpeeling Scotch tape at a speed of three centimeters per second produces large numbers of x-rays. Get the best deals on Scotch Tape Dispensers when you shop the largest online selection at. Scotch Stretchable Tape 8884, Clear, 36 mm x 55 m, 5 mil, 24 Rolls/Case. Led by physicist Seth Putterman at the University of California, Los Angeles (UCLA), the researchers are now developing what they hope will be a cheap, simple source of x-rays for clinical imaging. Tapes are used to attach or arrange materials to each other or in relation to each other. Now researchers have shown that rapidly unwinding a roll of Scotch tape inside a vacuum generates not only visible light but also enough x-rays to image a human finger. The production of light by some materials when under friction or pressure, a phenomenon called triboluminescence, has been known for centuries, mostly as a novelty. Lift it up by slowly pulling it back on itself, then removing at a 45-degree angle.When you bite down on wintergreen-flavored LifeSavers candies in the dark, they glow. TAPE REMOVAL TIPS: Wait until the paint is dry to the touch before removing the tape.And lastly, let the tape set for about 30 to 60 minutes before painting. /rebates/2fc2fkp2fscotch-tapes&. Next, apply the tape onto the surface while pressing down firmly as you go. ![]() TAPE APPLICATION TIPS: For great paint results make sure the surface is clean, dry and dust-free so that the tape sticks properly.14-day clean removal leaves behind no damage or sticky residue.The tape that DIY painter’s and pros have loved for more than 30 years.Designed for use on multiple surfaces such as smooth or lightly textured walls, trim, baseboards, tile and glass.Check out our clear tapes to mend tears, mount photos or make gifts look perfect. Help protect your surfaces while bringing your creative vision to life with the help of ScotchBlue™ Original Painter's Tape. A one-stop resource for tackling any project, featuring best practices, simple tips and creative hacks to common problems. Whether you’re masking a prize painting, protecting your wood trim, painted walls, tile floor, or glass windows, this versatile multi-surface blue masking tape can stay on surfaces for up to 14 days and then removes easily without leaving any sticky residue behind. Tools and accessories used to apply different types of tapes for even and appropriate application or containers used to hold and dispense tapes as needed in a given application. ScotchBlue™ Original Painter’s Tape is the tape that DIY painter’s and pros have loved for more than 30 years. ![]() Description Artist's Blue Masking Tape The Original Blue Tape
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![]() Think hard about which style will pair well with your business and don’t be afraid to come up with something original that expands on the ideas above. With so many styles of card design, it should become clear why picking the right design style is so important for the particular message you want to convey. These concepts all embrace the quirks of their respective businesses well, so maybe it’s time to think about what makes your business one of a kind! Discover the power of an awesome business card It could mean that your business has an energy that is singular and unusual.Ĭheck out some of these trend-breaking ideas which embrace originality with circular shapes, interchangeable card designs, specially-chosen holographic pink paper and light reflecting card edges. If none of the design styles featured to this point ring a bell, fear not! That may actually be a good thing. By creating a design with gray or black type and a single pop of color, your can show your customers that you are in touch with those old-fashion values of professionalism and establish a sense of tradition, that your company has been around for a while. Simple color palettes are also reminiscent of printing techniques of the past, making them perfect for a vintage aesthetic that nods to an era where hand-craftsmanship was taken seriously. It sends a visceral message that is sleek and dependable-just like the that thick card stock! If you want to send a sophisticated message, consider how a dark, two-tone card with simple typography printed on a thick matte card stock accomplishes this. In fact, sometimes a minimal and refined approach can be just as eye-catching (and let your clients know you’re a professional). Print 50 starting from 14. Your business card doesn’t necessarily need to be a Rudolph the Red-Nosed Reindeer in order to stand out. Business card templates Ace the name game in your industry when you connect with your peers in style using Canva’s free business card templates that you can customize and print exquisitely in a matter of minutes. School Status business card by IRDESIGN for blake 6X Even something minimal and futuristic, like a matte grey finish on a thick plastic card with a bright orange accented edge, can make customers feel like they’ve been handed the keycard to a spaceship (the spaceship being your business, of course). This and other new printing techniques not only look cool-they demonstrate that you are in stride with the advances in technology, which will appeal to a more modern audiences seeking a trustworthy tech company. Usually, it is seen printed onto a standard card stock, but advancements in card printing can now engrave it into heavy cardstock or even metal! Take, for example, the circuit board-a popular design element for any service involving computers. With all of the increasing options for business card materials, finishes and die-cutting, creating a design to represent a cutting-edge company has never been easier. Amauta Marketing名刺by AZ™ Business card by An :Designer for Adam Ventura ![]() Note: When you design a large scale floor (example: “400 ft” × “400 ft”, please do as following to make the export process faster: + drag mouse from right to left to select all object that is inside or cross the select rectangle areaĪfter designing, to export to image file, please press Cmd-E key to export to PDF, JPEG, PNG… + drag mouse from left to right to select all object that lie totally inside the selected drag rectangle area. Select multi objects is like in AutoCAD, please do as following: To flip the direction of door / window (from inside door to outside door), double click on the door / window object Select appropriate door, window or stair type from left tool bar then add it to the room that you created before. + If you want to disable wall (not drawing it): select the line then set the “Line” check box on the top of the dialog to OFF + Single click on a single line wall and drag to move the line (wall) position (if this is a polyline wall, press Command or Alt or Ctrl key while dragging will move all polyline walls along) + Double click on a line wall to add a new intersection point or to break a line into two lines that attaches with each other + Click outside of the room object to quit Room Edit modeĬreate a new line (wall) by Click and drag “Wall” button on the left of the windows into the view. + Use “Trim Wall” button on the top right of the window to draw a rectangle area to remove/trim all walls within that rectangle. + You could also fill the room with custom texture by using setting in “Text Editing dialog” ★Note: special text “%area%” is used to represent area size information + To change text content inside of the room object: input new content into the “Text Editing dialog”. + To copy properties of one wall to other walls: select the old wall, press “Cmd + C” en select other walls and press “Cmd + V” + If you want to disable wall (not drawing it): select the line then press “Delete” key + To change a straight line wall to curved wall and vice versa, select line (the line background will turn red) then right click mouse to show a action menu, from this menu choose appropriate menu item to convert to curved or straight wall. + Use mouse to drag an area to select lines (walls) within the selected area (the selected line background will turn red) then use controls on the top of the window to change line setting (width, dash, color…) + Double click on an intersection point to remove the intersection point + Double click on a line wall to add a new intersection point + Single click on an intersection point and drag to move the intersection point position + Single click on a line wall and drag to move the wall position *********************************************įor each room in your floor plan create a new room object by click mouse and drag “Room” button on the left side of the windows into the view area.Īfter room object was placed into the view, you will need to double click on the room object to start edit the shape of the room.īelow are tips to edit shape of the room (in Room Edit mode): ✔ Export to png, jpeg, tiff, pdf image file (shortcut key: Cmd-E) ✔ Auto Align with another object when resize or move ✔ Lock/Unlock items position (shortcut key: Cmd-L / Shift-Cmd-L) ✔ Group / Ungroup Items (shortcut key: Cmd-G / Shift-Cmd-G) ✔ Copy / Paste (shortcut key: Cmd-C / Cmd-V) ✔ Unlimited Undo/Redo (shortcut key: Cmd-Z / Shift-Cmd-Z) ✔ Customizable Color / Font / Size / Line Type The application allows users to drag/drop many image files directly from Finder to current editing window. ✔ Drag/Drop Image from Finder (or press Cmd-V to paste image from current Clipboard): Please press the “☺” button on the left to add and select any symbol you want. More than that, there are over 3000 beautiful symbols to add the view. There are many shapes to add to the design, including text box, round box, line connector, callouts…. There are many predefined nice Interior objects for you to add to the design: door, window, stair, chair, sofa…. ![]() Right click on a Room object then select “Add to template list” to save the room so that you can reuse it later. ✔ Add Room to Template list: (coming in version 1.1 from 2013/1) Mail support: is an interior design application that allows you to easily design your home plan in 2D, as well as change the color or the texture of each room, and drag – drop furniture, doors, windows… onto the room from a catalog organized by categories.ĭrag (create new) room object into the draw view, double click on it to edit all information of the room (walls, intersection points. ![]() We can also notice that stat command is highly exact in showing the seconds in a timestamp. As an example, list all the files using ls -l to find the time stamp of the listed files. Follow steps and command to change a file time stamp under UNIX or Linux operating system. The displayed date and time are converted from UTC to the local time zone when displayed to the user. The touch command is used to change file timestamps, change the access and/or modification times of the specified files. The number +004 at the right of each timestamp is known as time zone offset, which indicates that the time zone is +004 hours ahead of UTC. In this image, the initial timestamps, which show the time that the file was created, are shown. If you want to change modify time only, use -m or -time modify or -time mtime, without it both modify and access times are changed. The image below shows an example of using the stat command to view the 3 timestamps. Initially, the timestamps all show the time in which the file was created. We can also use the touch command or any text editor. The file was created at 14:04 on using the nano command. To further explain the concept, we will examine a file named test.txt, the following changes were made to the file: Creating the File ISRO CS Syllabus for Scientist/Engineer Exam.In the following example, we will recursively change the owner and the group for all files and directories in Dir1. Add the -R option to the command to do so: chown -R NewUser:NewGroup DirNameOrPath. ISRO CS Original Papers and Official Keys The chown command allows changing the ownership of all files and subdirectories within a specified directory.It measures time by the number of seconds that have elapsed since 00:00:00 UTC on 1. GATE CS Original Papers and Official Keys Unix time is a date and time representation widely used in computing.DevOps Engineering - Planning to Production.You should check your platforms man page to see which of the above applies. Using another version of rename (same as Judy2Ks answer ): rename fgh jkl fgh. Using one version of rename ( Perls rename ): rename s/fgh/jkl/ fgh. Python Backend Development with Django(Live) There are several ways, but using rename will probably be the easiest.Android App Development with Kotlin(Live) As long as you are the owner of the file (or root), you can change the modification time of a file using the touch command: touch filename By default this will set the file's modification time to the current time, but there are a number of flags, such as the -d flag to pick a particular date.Full Stack Development with React & Node JS(Live).Java Programming - Beginner to Advanced.Data Structure & Algorithm-Self Paced(C++/JAVA).Data Structures & Algorithms in JavaScript.We should now see that the permissions for test1.txt. List the directory contents to view the new permission settings. Data Structure & Algorithm Classes (Live) Change the permission of the owner to read only.Modifying mtime means ctime also gets updated. Changing the file's contents will necessarily also update ctime, as the atime/mtime/ctime values are stored in the inode. (i.e., owner, group, link count, mode, etc.). To modify ctime, you'll have to do something to the inode, such as doing a chmod or chown on the file. hhmmss (preferred: change timezone) 3 write new timestamp. Proposed algorithm: 1 read file's modify date 2 add delta, i.e. ![]() I would like to set the file's timestamp on disk. There are some arguments to decide which timestamp to change (e.g. The field st_ctime is changed by writing or by setting inode information Unfortunately the time wasn't set properly and timestamps are off. A utility to change the timestamps would be touch. Linux chattr command can also change the ctime. assume the file is -rwxr-xr-x (755) then Code: chmod 755 filename you have to own the file to do this will set ctime to now. If you need to version your files then the version should be made explicit externally or internally The file creation date (ctime) is not really the creation date in unix, it is the last time the inode data and some other metadata was modified. The metadata associated with a file in unix does not guarantee an original creation time but preserves the creation time for the latest version. Once a file is modified or it's owner changes it's provenance changes so all bets are off on the contentsĭos/nt is unreliable in this regards as you can trash a file completely, rewriting it in it's entirety within a command shell and the creation time will not change Stat will return modification change st_ctime Open a new Terminal window from Applications:Utilities. Double click to extract the archive if need be. aac audio file into a mp4 file using MP4Box.ĭownload MP4Box from here and save it to the same folder as your extracted video and audio. Note: the audio files will likely be named audio2.ac3 or audio2.dts. Set the Convert To: dropdown to AAC then set the destination folder to the folder than contains the files we extracted earlier.ĭrop the audio file that was extracted from the mkv into Audio-Converter to begin conversion. Launch Audio-Converter from the Applications folder. You can use your favorite application to convert the audio or try Audio-Converter which can be downloaded from the Mac App Store here. If it is in AAC format then you can skip this section. If the audio track you extracted is NOT in AAC format than you will need to convert it. ![]() IMKVExtract will let you know when the extraction is complete. These are usually track one and track two.Ĭhange the target folder if need be and click the Extract button. Select the video and audio track for extraction. Select your mkv file and click the Choose button. Launch iMKVExtract and click the Browse button to select your Matroska file. The iPhone and iPad support High Profile level 4.1.ĭemux (ie extract) the video and audio tracks from the MKV container format.ĭownload and install iMKVExtract from here to your applications folder. The new Apple TV supports High Profile at Level 4.0 however, we have tested level 4.1 and it worked fine in all attempts. ![]() Some older Apple devices only support the Main profile so if your video is High Profile this procedure may not work. Important: Make note of the Encoding Profile. Make sure the video format is H.264 and take note of the Frame Rate (fps) and Audio Format. ![]() Launch VideoSpec from your Applications folder. Before beginning lets get some details on the source video and audio.ĭownload and install VideoSpec to your Applications folder from here. ![]() Using very sophisticated physical models of the black hole and the disk, they were able to see quite a few effects, including changes in the shape and tilt of the disk during the flares. They wanted to see what effects the flares had on the disk by looking at how the timing and energy of the X-rays changed. Observations of the black hole showed that it underwent episodes of intense brightening called flares, possibly due to an uptick in the amount of material falling from the star onto the disk.Īlthough decommissioned in 2012, the observations from Rossi XTE are archived on Earth, and for this new research astronomers looked through the old data to investigate the black hole. The system was discovered in 1998 by the Rossi X-ray Timing Explorer, a satellite in Earth orbit that detected high-energy X-rays coming from objects in space. Credit: NASA’s Goddard Space Flight Center/Jeremy Schnittman This is hot enough to emit X-rays, a very energetic form of light.Ī simulation of what a black hole with a disk of gas swirling around it would look, given the bizarre effects of its fierce gravity on the light from the disk. The disk is incredibly hot, upwards of ten million degrees (!!), heated by friction as the matter swirls around the black hole. This material spirals toward the black hole and forms a disk around it called the accretion disk. The star is close enough that the intense gravity of the black hole is drawing matter of its surface. ![]() It's orbited by a star that's very roughly 10 million kilometers away from it it's not clear what kind of star it is but it's likely something with around the mass of the Sun or a little less. ![]() It has a mass of about 9 times the Sun's, so it's an average black hole in that respect. The black hole is called XTE J1550−564, and it's located about 14,000 light years away from Earth. And it's literal: Light emitted on one side of a disk around the black hole gets bent by the fierce gravity so much it travels back down to the disk on the other side, illuminating it, and gets reflected back up so we can see it. I would not, however, have thought to include black holes in that ability.īut it appears to be the case, at least for one such beast. I like to think that anyone is capable of some self-reflection. It also can permanently wipe data on storage media like USB drives, memory cards, digital cameras, SD cards, external hard drives, etc. It provides an easy and secure solution to wipe hard drive data permanently, erase selected files/folders and wipe unused hard disk space. Features of DoYourData Super Eraser 6 Three Data Erasure Modes Secure Data Destroy & Wipe Solution Avoid Security Threats with Super Eraser Business. It is an easy-to-use yet powerful data erase software is designed for permanent data erasure. This program is a рowerful data erasure software to erase files/folders permanently, wipe hard drive data, wipe unused disk space or erase data on storage media. 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![]() ALSO CONSIDER: Honeywell Home MicroDefense AC Air Filter.BEST FOR CIGARETTE SMOKE: Filtrete AC Furnace Air Filter, MPR 1900.BEST FOR MOLD: Filter King MERV 8 Filter With Mold Protection.BEST FOR PETS: Aerostar Allergen & Pet Dander MERV 11 Air Filter.BEST FOR ALLERGIES: AIRx ALLERGY MERV 11 Pleated Air Filter. ![]() BEST SMART: Filtrete Smart AC Furnace Air Filter.BEST BANG FOR THE BUCK: Filterbuy Air Filter MERV 8 Dust Defense.RUNNER-UP: Nordic Pure MERV 12 Pleated AC Furnace Filters.BEST OVERALL: Filtrete AC Furnace Air Filter, MPR 1500.Keep reading to learn everything a user will need to know about choosing the best furnace filter for any system and to find out why we’ve chosen the following replacement air filters as some of the top choices for most homeowners. ![]() Users should replace their filter in conjunction with the change in seasons as regular maintenance ensures the filter won’t become clogged with dust, pet hair, and other airborne particles, which can reduce the furnace’s efficiency. As a general rule to keep allergy suffers as comfortable as possible, change the furnace filter every 30 to 60 days.Changing a furnace’s air filter every 3 months can keep it from malfunctioning while contributing to better indoor air quality and reducing energy costs. Consult the owner’s manual for your furnace to determine the correct MERV filter rating. Because filters with higher MERV ratings are denser, your furnace must work harder to draw air through them and not all furnaces are powerful enough to do so. ![]() Use a filter with a MERV rating of 12, such as the Nordic Pure Filter (available on Amazon), if your furnace can handle it. In homes where a family member has dust and/or pet allergies, change the furnace filter frequently to ensure good air quality. Allergy sufferers will benefit from frequent filter changes. Due to their pleats, filters such as the Honeywell Ultra Efficiency Filter (also available on Amazon), have more square inches of dust-trapping space, so they often require fewer changes-usually every 90 days. A flat filter, such as the Flanders Front Panel Filter (available on Amazon), is designed to be changed every 30 days. The deeper the pleats, the more surface area a filter has and the more room it has to collect airborne particles, so it may not clog as quickly as a flat filter. Flat filters may clog more quickly because they have less surface area than do pleated filters. Most furnace filters come in two types, flat and pleated. Photo: Flat filters clog more quickly than pleated ones. Unfortunately, those smaller holes tend to clog more quickly than lower-rated filters with larger holes.Ĭlogged filters not only negatively impact the air quality in a home, but they also force the furnace to work harder to draw air into the system so they can shorten the useful life of the furnace. Your furnace’s owner’s manual will specify the best MERV rating for your furnace, and in general, filters with a MERV rating of 6 through 9 should be changed every 90 days, while those with a MERV rating of 10 through 12 should be changed every 60 days. This is because higher-rated filters have smaller holes so fewer particulates can get through. In fact, filters with ratings of 11 or 12 will block not only dust and pet dander, but can also block some types of microscopic viruses and fumes. The higher the MERV rating, the better the filter is at blocking airborne pollutants. Filters rated below 6 may not adequately block airborne particles, and filters with ratings higher than 12 are designed for specialized use, such as in hospitals. The denser the filter, the more often it should be changed.įilters are given a minimum efficiency reporting value (MERV), which ranges from 1 to 16, although ratings of 6 through 12 are best for residential furnaces. ![]()
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