Apple Watch Not Marking SMS Or Text Messages As Read (cant Sync Properly)? Heres How to Fix the Issu

I feel quite strongly that two local servers, which everyone else binds to, is the right way to go. NTP is designed to work that way, and it minimises the load on the public/pool servers.I run an NTP pool server. Even in areas with well-populated pools the load is still significant (I am running at an annualised average of 25 client requests per second, which means about 2.5 million a day). In some parts of the world, the pools are so small that the few people who run pool servers are getting quite overwhelmed.Edit: Aaron Copley makes the excellent point that two servers will both be rejected by clients if only one of them is out-of-sync but still thinks it's correct (see, eg, this question), and that having two (instead of just one) simply doubles the single-point-of-failure. He is absolutely right that three would be better, and in a larger production network I would agree that it is appropriate for this usage case. In my experience, however, properly-configured NTPd works a lot more often than it fails, and the risk of a single server being unavailable and client clocks getting too far out of sync to recover automatically much outweighs the risk of one server advertising a faulty time and invalidating both.For me, two is the right number of upstream-synced servers for this network - but there is definitely a legitimate discussion to be had around the issue, and I am grateful to Aaron for raising the point.1. Video editing app for lowering background noise while evidentiating slow voice?To get a good noise reduction we cannot simply rely on basic denoise filters, as these may not be much more than low or high pass filters which then may lead to a rather muffled result.A better approach will be using a dedicated audio processor designed to have good noise reduction algorithms on the audio content of our video only.To do so the following short tutorial uses Audacity for audio processing, and FFmpeg for audio extraction and rebuilding the video (avconv can also be used with the same syntax).We may have to sync. In case we experience audio to get out of sync in longer videos, we may also add the option -async 1 in step 10 above.2. how can i download free music to my ipod touch?Use Free YouTube to MP3 Converter: - Download it - Open it up - Go to the video with the music you want - Copy the link - Paste the link on Free YouTube to MP3 Converter - Wait for it to say "Ready for Download" - When it does, press Download. - When finished downloading, click the folder icon. - A folder where your music is should open up and it should be there. - Open up iTunes - Open up the folder above iTunes - Drag the title to "Music" in iTunes - When in "Music" drag to the name of your iPod (You name your iPod when you connect it to iTunes" - Click "Sync" Done!3. Scrum for a single programmer? [closed]Unless you have the following in placeMeans to organize and prioritize the the incoming requirements.To estimate accurately the effort that will be taken so that you will know what you can commit in an iterationIterations and Continuous Improvement - The concept of iterations in which one is continually inspecting and adapting is invaluable. This practice encourages experimentation and it builds in continued learning. Scrum in Church, page 4Well, you cannot do a daily scrum meeting, but at least you can remind yourself of the task that you will commit today. Daily scrum meeting is used so that teams can get in sync with one another on what they are doing.Reflection after a sprint - in scrum it's called Sprint Retrospective, at the end of each iteration, you can reflect on what happen after the iteration, and think of what went wrong and how you can improve it, what are the best practice to keep them doingI would suggest that you take a minimalist approach, and by continuous improvement, you can have a scrum that fits well to your needs. Scrum is not scrum if you cannot fit it to your needs and adapt to your current situation

I wrote my own, as a Python script. It uses md5sum to detect changed files, and copies them to a standard backup subdirectory within each working directory. Each backed up file has the same file name, with a suffix, such as _1, _2, etc...This was easier when I used VMS, which made backup versions of changed files automatically.1. n sync or the backstreet boys?Say you were at a club who would you dance with? Girl 1 or girl 2?2. How do I fix Google framework on my cell phone?Go to accounts, under the google account Uncheck sync on the calendar. Then (go to settings - apps - manage apps - all) Clear the data and cache of all calendar apps, the google calendar sync and the google services framework, Then reboot the phone and turn sync back on.3. my internet cuts in and out what do i do?I would call Quest. There could be a small short out in the field or something on your pair. The Quest field tech can test your NID in the basement of the apartment, or even test your cable pair to see if they come up with a short, noise or something like that. I've seen that quite a bit. The wind or other things can move the cable pair and cause it to be slow and shotty if it has a short, or sometimes it will cause your DSL modem to lose sync overall.4. Sync drums to song?If you have these programs you can do it. You can program the drums with Reason and put it on as a plugin on a stereo Aux track and it will sync exactly. Tempo and everything. You record this Aux track by throwing the output on lets say Bus 1-2 (since it would be stereo) and then make a new stereo audio track and make the input Bus 1-2, then simply press record and you got it. If you are sticking with acoustic drums, make sure you use a click track (metronome) on an Aux track and make sure the tempo is set right, then just practice it a few times and hit record, if you can not get it right, just program them or find yourself a drummer. Since you have good parts, just cut the bad ones out and replace them with a click track or metronome playing in your ears if youre sticking with acoustic drums5. how to sync ftp folder with local folder?The script you are searching for might be FTPSync6. Clarke-Park transform for a 3 phase induction motor currentAs you have stated when this approach has been applied to a PM synchronous motor the expected results are obtained.This is because, as the name implies, the electrical frequency & the rotor frequency are proportional to the polecount - Synchronous machines only generate torque at sync speed.Unfortunately with Induction machines the rotor frequency is proportional to the pole count AND slip - Induction machines only generate torque at any speed BUT sync speed -> rotor $omega$ is less than electrical $omega$The use of rotor angle as an input to the park&clark therefore will not work in the same way with induction machines. What is required is a slip frequency calculation block to infer the electrical angle, the angle which can be used in the C&P transforms7. How to detect the rising edge of a pulse that is not in sync with the clockHere is the way it works. If you have a pulse, assuming voltages are OK, it will be detected at clock N if it meets the setup and hold time for clock N. If it is too late to be detected at clock N, it will be detected at clock N1. If the timing is marginal, it may be detected either at clock N or clock N1, there is no way to know ahead of time. Please note that there is a minimum detectable pulse width. If the pulse is too narrow, it may not be detected at all. Generally, "too narrow" means less than one sample clock period (but you need to work it through with the setup and hold time specifications to fully understand the minimum pulse width). So if the minimum pulse is less than one clock cycle, then there is the possibility of missing a pulse. Welcome to the joys of asynchronous design.Depending on what you are interested in, there are all kinds of things you could do. You could have the pulse enable an analog integrator so that pulses can be counted in an analog way, then occasionally sample and reset the integrator to avoid overflow.If pulse timing is what you are most interested in, you can start an integrator on the pulse rising edge, then sample the analog voltage output of the integrator with an ADC synchronous to the digital sampling. Then you convert the ADC voltage to elapsed time. This will allow you to figure out the time of the pulse with sub clock accuracy and precision.Have fun!

There is a very expensive piece of highly specialized gear that can easily fix this problem....It's called a boom box. :) The secret to doing any kind of sync like this is to finish either the audio or video first and then play one while you work on the other. You can insert a quick beep just before the beginning so that it can be easily matched in post. This is the point of that clapper thing they use at the beginning of film clips.Simply lip sync to the audio that is playing and/or dub over the mouth movements using a script (depending if you are doing video after audio or audio after video.Cheaper audio gear will sometime have problems with bad timing that will cause drift, but decent quality semi-pro or pro gear should hold sync well even with hour or more run times. If you do find that drift is a problem, try using a clapper or beep before the beginning and the end and then do a speed correction, which should work well as long as you don't have dropped frames

It is impossible to do what the YouTube video shows. That is a fraud. There are friction losses, electromagnetic losses and resistance losses in the bearings and wires in both the motor and the generator and the loads connected to the system. As the power draw increases, electromagnetic resistance increases. It it were possible, that would have been done late in the 19th century. The electromagnetic resistance is the concept behind regenerative braking on some automobiles, roller coaster rides (at the end of the ride) and other similar systems. But if you can connect a 5 ton flywheel and get it spinning at a high rate, the inertia will allow you to run an alternator for several minutes, maybe up to an hour and drive an alternator. But takes energy to get that flywheel up to speed.1. Running a cycle on brushless outrunner motors? [closed]Let's assume you do a motor on the crank shaft rather than on the hub.When you step on the pedal/crank it's approximately the mass of your body doing all the work.$Torque(tau)=Force*Distance$, $Force=mass*Acceleration$$mass:=70Kg$, $Acceleration:=9. 8fracms^2$, $Distance:=0. 2m$$tau=70times9. 8times0. 2 implies140Nm$ of torque for a motor to provide the same torque that you do.$Power=Torque*Speed(in fracradianssec)$ Cranking the pedals a full turn each second is reasonable.$1fracrotationsec=frac2pispace radianssec=frac6. 28space radianssec$So, $140Nmtimes6. 28fracradianssecimplies 880Watts$This is a peak, you would get tired very quickly pedalling this hard, (think about how long you can climb stairs at 2 per second). Average human power is closer to 100W.So now you have some numbers. You do not need more than 140Nm peak torque, and around 900W power. (Laws usually restrict you to less than this power). Let's say that you just want some power assist. 30Nm and 50W of power might be ok.I have no idea which motor you were looking at; here's one at random in the 30 range. Let's estimate the torque it will produce. The motor constant kv tells us a lot. Not only is it an estimate of the backemf (ie how many volts per rpm the motor generates when it's spinning), the inverse of the same consant is an estimate of how much torque per amp is produced.$kvimplies fracVoltsfracrotationsminimpliesfracVoltsfrac2pispace radians60secimpliesfrac602pifracVoltsfracradianssecimpliesfracVoltsfracradianssec=frac2pi60kv$$fracVoltsfracradianssec=frac1fracNmAmpimpliesfracNmAmp=frac1fracVoltsfracradianssec=frac602pi kv$That motor has a kv of 335$fracrpmV$ so it's torque constant is about .028$fracNmAmp$ and it has a max current of 28A so it's maximum torque is 0. 78$Nm$So you would need around 40:1 gearing to get the torque into the range we want. So even though the motor seems to have enough power, to amplify the torque to be useful, you will need gearing. A company I've been happy with and is relatively cheap is golden motor2. Differences between brushed and brushless motors - advantanges and disadvantages of eachAt first brushed are fine because they are cheap and easy to replace. The more you read about specs and tuning you will take interest in brushless. For example betaflight now has rpm filtering which allows the gyro to reduce interference based on the rpm of the motors. So above tinywhoops and toys you are going to be seeing brushless3. Can someone please explain brushless motors, esc's, and lipo batteries to me? (in relation to rc cars)?Hi Jess the brushless motor has a small circuit board attached which converts a Direct current supply to 3 phase alternating current so they are AC motors. As to the other items i will watch to see the explanations given by others.4. Brushless DC motor steady-state performance modelingThis is true for stepper motors and PM synchronous motors powered by AC, but PM BLDC motors usually have their commutation controlled by Hall sensors or back-emf zero crossings. So it is the speed/current/torque of the motor itself which determines the commutation frequency - same as in a brushed DC motor. The formulas for brushed and brushless DC motors are the same. Yes, however 'hobby' motor constants are often not very accurate, and using them can result in quite large differences between calculated and actual performance5. A4963 3 Phase Brushless SensorlessYou will also need to configure the part using an SPI interface from your processor and a sense resistor to sense the current. The parts are very easy to use. I would recommend the eval board - it will run most motors out of the box and they provide a PC interface to try different configurations

I had the same problem once, I think you should choose more carefully the options of rsync. The option -a equals to -rlptgoD, so rsync tries to preserve permissions, owner and group of your files from a disk to another. For example for my backups I use the options:and it works fine for me. These options mean:I suggest you to check out the manual of rsync to find out what options are best for youI am trying to set up a rsync script using automator for one of users in the office, but I keep getting an error. I started from the simplest code line: rsync -a /Volumes/DiskA/ /Volumes/DiskBBut I keep getting this error:rsync: opendir "/Volumes/DiskA/.Trashes" failed: Permission denied (13)rsync error: some files could not be transferred (code 23) at /BuildRoot/Library/Caches/com.apple.xbs/Sources/rsync/rsync-47/rsync/main.c(992) [sender2.6.9]I have searched the whole internet and have tried many different ways/codes but still getting error. I also tried a clean installation and formatted the HDDs. I am planning to add other commands one I get this issue fixed. I greatly appreciate if you could help me to solve this issue.·OTHER ANSWER:I am trying to set up a rsync script using automator for one of users in the office, but I keep getting an error. I started from the simplest code line: rsync -a /Volumes/DiskA/ /Volumes/DiskBBut I keep getting this error:rsync: opendir "/Volumes/DiskA/.Trashes" failed: Permission denied (13)rsync error: some files could not be transferred (code 23) at /BuildRoot/Library/Caches/com.apple.xbs/Sources/rsync/rsync-47/rsync/main.c(992) [sender2.6.9]I have searched the whole internet and have tried many different ways/codes but still getting error. I also tried a clean installation and formatted the HDDs. I am planning to add other commands one I get this issue fixed. I greatly appreciate if you could help me to solve this issue.

I think that firing the flash manually gives you a lot more interesting possibilities than rear curtain sync.If you want to have rear curtain sync, just push the (flash) button at the end of the exposure (just before releasing the shutter button)That being said, you can fire the flash at any time during the bulb exposure. If a dancer jumps, you probably want to freeze him in the air and not at the end of the exposure when he/she is on the ground again, which rear curtain sync would do.You can even fire multiple flashes during the bulb exposure, freezing the dancer multiple times in one image. To do this, you either need short recycle times of your flash or multiple flashes. (or dance moves that are slow enough to allow the flash to recycle)In fact, using a stroboscopic flash for this kind of shot is also possible (and people do this).1. What are the differences between the Iron Curtain and the Berlin Wall?The "Iron Curtain" was a political allegory coined by Churchill in 1948 to symbolise the growing antagonism and breakdown of the war time alliance between the West and RussiaThe "Berlin Wall" was the fortified border that surrounded the three western sectors in BerlinThe "Inner German Border" was the fortified border that separated the Russian Sector (later East Germany) from the three western sectors (later West Germany) in occupied Germanuy2. Do short curtain look tacky in a living room?Mabye, but It depends on how the curtains color or pattern looks like. mabye you should buy a few and see how it looks with your windows3. I am looking for a cheap bamboo door curtain any ideas?IKEA has many models . Home Plaza got many things too .. they both start from 25$ .4. Im so designer home non friendly, HELP!!! I need a curtain color.?nearly any color will go with tan, black and white. if you want a color that pops use a dk. red or medium blue. if you want something to blend in, use a darker tan (at least 2 shades darker)5. What color accessories would go with black and white shower curtain?Try Peir 1 Imports, the store. They usually hae great trendy items for decorating. Anyting cubey- For the rug I picture a fluffy black one...good luck and remember to have fun. I think black would be a bit depressing by itself. ..try to lighten it up a bit.6. how can i a get ross dress for less stores to repair my bathtub which was badly stained from a shower curtain?The manufacturer is responsible7. Which do you prefer, a shower curtain or a glass shower door?Shower glass door8. Could I have a retinal detachment with no flashes, no blurry vision, no curtain, no pain, no floaters? I was seen twice by an OD for PVD and for sudden flashes, now gone. But they asked me to keep my April appointment due to sagging vitreous.Well, yes, you could have a retinal detachment (RD) with "no flashes, no blurry vision , no curtain, no pain, no floaters". Because none of those symptoms are absolute requirements (pathognomonic) for an RD.Firstly, there is almost never pain with a RD because there are no pain fibers in the retina. Secondly, your "sagging vitreous" is probably a vitreous detachment (what you referred to as a PVD) and that's pretty common. While a vitreous detachment can lead to an RD, the vast majority do not.Thirdly, not all RDs lead to total black vision loss as described in one other answer. In fact, most do not. Macula-on RDs usually have a decent amount of central vision at the time of discovery/repair. Macula-off RDs usually have very poor central visual acuity at the time of examination. Small inferior RDs may have very few symptoms and may not be noticed by the patient, and may not progress. So, in answer to your question, yes you could have an RD without any of those symptoms. Is it likely though ? No.Assuming the OD was capable of doing a thorough, retinal exam with good dilation, view, and scleral depression, it would be unlikely that you would have developed an RD following the ODs exam without any new symptoms. But it is possible.This is not medical advice. Medical advice is what you can (sometimes) get from your medical doctor after they have examined you. Advice over the internet could be from a 9 year old who has just watched a South Park episode. Or a quack. You are probably better off with the 9 year old's opinion. So the best advice is don't waste time asking for medical diagnoses or medical advice on the internet. See your doctor. Could I have a retinal detachment with no flashes, no blurry vision, no curtain, no pain, no floaters? I was seen twice by an OD for PVD and for sudden flashes, now gone. But they asked me to keep my April appointment due to sagging vitreous

The problem is to cast the video to the TV through the Chromecast, but to play the audio separately on the Bluetooth speakers.Solution 1 : Two apps in syncIt is possible to play the same video using two apps, one for the video and the other for the audio, but this is pretty awkward. While the two can be easily synced at the start, they will go out of sync every time that you pause both, since you can only click one at a time.VLC is useful here since it lets you jump to a position in the video, which will be essential while syncing the two apps.This setup is pretty straight-forward. For details you could see the article Play Video Through Chromecast And Route Audio Through Your PC Or Mac.Solution 2 : Use an HDMI splitterYou could use an HDMI audio extractor, which costs typically only a few dozens of dollars. The device acts as a splitter, breaking the HDMI into separate video and audio to feed two different sets of equipment. The setup is as follows:This may not work with all setups and with all types of TVs and audio equipment, particularly certain legacy systems. So check your specs carefully before picking one of these devices up.Not knowing more about your materials, and never having used such an HDMI audio extractor, I cannot recommend any specific device. You may issue a query on amazon.com and refine it as needed.1. Digital cameras with good audio recording indoor concerts?Any camcorder with some sort of manual audio gain control. First, any DSC or DSLR is primarily a still camera and video is secondary. Stills do not do audio... Video cams do. Most consumer grade video cams do not have any sort of manual audio gain. It is needed for loud audio because the built-in auto mic gain circuitry can not deal with really loud audio. There are some low end Sony and Canon camcorders that have a VERY basic "Normal" or "Low" (low gain for high levels of audio) switch setting. There are no DSC or DSLR cameras that have any typ of control like this. For the camcorders, MicRefLevel is in the Sony camcorder's menu and "Mic Attenuation" is in the Canon camcorder's menu - if the camcorder even has it available. I think the starting point for this will be around the $500 mark, so if this is too rich for you, then we need to figure out a different way... That other way is to use an "audio field recorder". Zoom, Marantz, Edirol, Tascam, and LOTS of others make them. The short version is you record the audio to the audio recorder (it has manual audio control and a meter to show you that the recorded audio is not too loud). When you edit the video, import the audio from the field recorder, sync, then mute the audio that was captured by the camcorder or camera... THEN edit, export and post to where ever... No, a Flip (or Xacti or any other pocket camcorder) does not have manual audio control - of any kind. Yes, I have successfully recorded smemo/metal bands with no distortion - and I use a Sony HDR-HC1 and HDR-FX1.2. How do I sync my Ipod?Ok, if you had to restore your computer. You will have to open iTunes and log into your iTunes account. Click the store tab in the upper left hand corner. Click log in and/or authorize your computer. Your authorizing your computer so you can use the previous account that was originally on your computer. However, you will have to reset the password using e-mail if you forgot the e-mail and or password. Once you log in and authorize your computer, you will need to click the store tab again and check for available downloads. Otherwise you will need to go to the purchased section in iTunes and configure automatic downloads so everything you download is re-downloaded. Then you can transfer your files from your computer to your new iPod... how is everything going? Notice: If any content was uploaded from a CD-ROM, you will need to re-install it. Tips for before next time (optional): - Make a "copy" of the newly created iTunes folder's contents and make sure that the iTunes folder is the correct folder where the downloaded music is and once you find the music files, you could paste them to your desktop (if you want to). Then (if you decide to), right click on the wallpaper and create a new compressed folder. A compressed folder's documents can be deleted but not edited. However, you can move/cut the original contents and separate it from the compressed folder so the contents are "playable." The compressed folder should help prevent some space consuming issues with some low capacity flash drives. Just remember to use regular folders within the original/main iTunes folder. Otherwise, iTunes wo not be able to read the music because the files are compressed. - Another option can be to wait until your computer acts up again. De-authorize your computer before you restore it again. You can only authorize 5 computers/devices. Hope this helps.3. Mac Calendar does not sync to google - error CalDAVMoveEntityQueueableOperationI had the same issue very recently, and it has taken me a while to find something that works. Hopefully this will work for others as well:My situation: a multiple of google calendars, and two different google email accounts. I was getting the The server responded: "403" to operation CalDAVMoveEntityQueueableOperation message, and it was popping up all the time. Very annoying! I was getting the message for only one of my google accounts.What I did to fix it was:

in case you could not detect a sensible converter, i desire to advise you Altysoft Video converter It helps such a good number of units and video codecs, including: iPod, iPhone, PSP, Zune, Xbox, Nokia, avi, wmv, 3gp, mov, flv and extra into avi, mov, asf, wmv, mp4, 3gp and others. Altysoft Video Converter is an fairly undemanding and effectual DVD ripping utility, that may convert DVD to numerous codecs. Altysoft Video Converter can help reproduction entire DVD on your difficult diver, then you definately can burn them to scrub DVD utilising burning utility. Beside above-pronounced applications, it fairly undemanding to acquire YouTube movies from YouTube website, in basic terms specify the URL for the video you desire to acquire1. Which DSLR Camera is the best for a beginner?The one in your hands. Find a dealer, look at what Pentax, Sony (not a true DSLR, but better for video), Canon, and Nikon have to offer in your price-range, and choose the one that feels best when you pick it up.2. how to zoom on a video?This is an edit to my question: I also need to know how to get rid of the bandicam watermark/logo on the top of the screen using Windows live movie maker3. How to password protect my video clips, or the folder containing video clips?.?encrypt and compress them with winrar4. Rape video on phoneThis sounds like it would fall under the "extreme pornography" part of the Criminal Justice and Immigration Act 2008. Section 63:(7) An image falls within this subsection if it portrays, in an explicit and realistic way, any of the following-(b) an act which results, or is likely to result, in serious injury to a person's anus, breasts or genitals,and a reasonable person looking at the image would think that any such person or animal was real. (7A) An image falls within this subsection if it portrays, in an explicit and realistic way, either of the following-(b) an act which involves the non-consensual sexual penetration of a person's vagina or anus by another with a part of the other person's body or anything else,and a reasonable person looking at the image would think that the persons were real. What you describe would likely result in serious injury to the victim, and the video appears to be non-consensual.Note that the actual origin is not relevant; if the videos were actually a brilliant piece of special effects and no anuses were harmed that gets you nowhere. The only thing that matters is what a "reasonable person" looking at the videos would have thought. Context might make a difference; if the videos were made by an identifiable company then a reasonable person might assume the producers would have at least obtained consent and complied with their local laws about safety. OTOH if they look like they were filmed on someone's phone and downloaded from some sketchy file-sharing site then a jury is likely to see this as suggesting to the "reasonable person" that the acts shown were real and non-consensual.Edit in response to comment:The law in question says 'An image is "pornographic" if it is of such a nature that it must reasonably be assumed to have been produced solely or principally for the purpose of sexual arousal'. So it can still be porn even if it was not filmed consensually. If "pornography" could only refer to consensual images then the prosecution would need to obtain evidence of the consent or otherwise of the participants. This might be impossible if a participant is dead or cannot be identified. Also the definition above matches both the dictionary definition and most people's idea of what makes something "porn"; the point of porn is sexual arousal5. Midnight release of video games?Yes you have to have a parent or guardian that is 18 or older and they must have proof of age and the midnight release is on Tuesday 1:00am6. Is this a valid counterargument to this video?It's disconnected a bit. You made great efforts to make bananas and "cavendish" separate and identifying what we eat are cavendish. And then you talk about bananas. I am not sure why. Also, I would guess/wonder if there were areas of bananas that did not have monkeys nearby. But the reasoning sounds plausible. Also, I disagree that bananas need to be opened and eaten by another organism for it to reproduce.

Although GPR has been widely used in hydrology, engineering, environment and other fields, many basic theoretical and technical problems have not been fundamentally solved, so the real advantages of GPR have not been brought into full play.The main problems existing in GPR technology include:1) The detection depth is shallow, and the contradiction between detection depth and resolution cannot be overcome. Increasing detection depth means sacrificing detection resolution;2) Multiple spread and other clutter jamming are serious, and there has been no good elimination method, which exists in radars at home and abroad;3) The influence of medium unevenness is great and can not be eliminated, resulting in difficulty in obtaining necessary velocity data;4) The data collection method of single sending and single receiving can provide limited information for post-processing and interpretation.The above problems are fatal defects for GPR. Although many geophysicists, electromagnetic experts and geophysical workers have done a lot of research and improvement on radar antenna design, signal processing and underground target imaging, these works are only partial modifications to the existing GPR system. In order to develop GPR technology, we must update our ideas and solve the problems from the fundamental principle.In view of this situation, experts proposed to develop a new GPR system - phased array GPR detection system in 1999.The basic research idea is to replace the current monopole radar antenna with the phased array radar antenna by using the relatively mature military phased array radar technology. Its purpose is to gather the electromagnetic wave into a narrow beam to transmit underground (or detection object) through the phased array technology, and receive the radar echo signal reflected by the target by using the multi-channel acquisition technology, The advanced data processing is carried out, and finally the three-dimensional image of the internal structure of the detection object is given.Development prospect of ground penetrating radar technologyIt is worth noting that at present, similar products have appeared in the market, such as RIS antenna array series of a company, but these products simply combine multiple monopole antennas into array antennas, which is essentially different from the idea of phased array ground penetrating radar.Because the phased array radar converges the electromagnetic wave into a narrow beam by controlling the phase delay of each channel, the energy is concentrated and the wave front diffusion is small. Therefore, the detection depth of the phased array radar is much larger under the condition of the same frequency and transmission power; On the contrary, under the same detection depth, phased array radar can improve the transmission power, so its resolution is much higher than the existing radar. In addition, since the spherical wave transmission is changed to beam transmission, the influence of medium heterogeneity is much smaller.Secondly, the phased array radar works in a continuous scanning mode and can scan in multiple directions. Therefore, the amount of information is much larger than that of the existing ground penetrating radar. For some special detection work, such as the quality detection of embankment cut-off wall, its role is unmatched by the existing ground penetrating radar (monopole antenna radar can not detect the joints, forks and other defects of embankment cut-off wall at all).Because phased array radar is a multi-channel received signal, multi-channel superposition can be carried out, just like the multiple coverage technology of reflection seismic exploration. Therefore, multiple interference can be greatly eliminated, which is difficult for existing radars. The antenna of high frequency (600mhz-1ghz) phased array ground penetrating radar can be made smaller, and its advantages are unmatched by the existing ground penetrating radar in shallow detection.At present, the system prototype has been completed. The carrier free pulse working system with center frequency of 900MHz is adopted, and the transmitting and receiving antennas are separated. 16 (4 × 4) Transmit channel forming, beam aggregation and scanning 16 (4) × 4) The channel receives the echo, and the optional scanning angles are - 36 °, - 24 °, - 12 °, 0 °, 12 °, 24 ° and 36 °.The software part of the system has rich data processing functions. The main conventional processing includes filtering, gain adjustment, static and dynamic correction, deconvolution, complex signal analysis, time-frequency analysis, etc., and multi-channel data processing, such as velocity analysis, superposition technology, coherence analysis technology, array signal processing, etc. And weak signal extraction, target automatic recognition and inversion interpretation under various clutter interference. A large number of field experiments on concrete detection in Yichang Three Gorges dam are carried out. The experimental results show that the spotlight scanning function of phased array radar has been realized, the penetration depth is greater than 1.5m and the resolution is higher than that of ordinary radar.Editing: hfy

So I am thinking of a possible answer to my own question:Build my own journal note entry app linked to a wiki.Zim Wiki uses a file based system for wiki. Maybe I could write app to export/sync entries in its files. Or WikkaWikki uses a MySQL (which is probably what I would use for journal entries anyway) so perhaps use same DB for Wiki and journal, with Journal app "doing right thing" to enter/sync Entries in wiki.Does this seem like a good approach?Or maybe I can customize a wiki with existing plugins - "All" I really need is good journaling / date feature, time tracking, checklist, and tags. Perhaps there already are plugins for this?Please comment if you have feedback on this idea.1. Circular tag wiki excerptsTag excerpts should at least try and give a concise definition as to the subject, and provided any usage guidance if necessary.Therefore, you need to make sure to address a set of key points:In general, excerpts should provide at least some guidance, even if it may appear to be ridiculously basic. Therefore, interpretation of the rejection reason is critical:That's like saying, [abs]: For questions about [abs] filaments. That should probably be rejected. This is better: [abs]: For questions about [abs] filaments - filaments that are used with blah blah printers, and are not toxic for use.Or even better: [abs]: For questions about [abs] filaments - filaments that are used with blah blah printers, and are not toxic for use. Not to be confused with [pla] filaments. Do not use this tag if your question does not concern this filament specifically. Obviously, I have no idea if abs is even a thing. Anyways, I hope this helps :)2. Why is this answer a community wiki?Apparently the answer under scrutiny was made CW because it drew on an answer from another Stack site, and the answerer wanted to share it without being associated with it for good or for ill.But community wiki is not a tool for reputation denial (or for dodging the repercussions of questionable-quality answers) and practically speaking I see no difference between quoting a different Stack and quoting a blog or a book. We would never expect someone to eschew rep for quoting a blog or a book. The answerer went to the trouble of tracking down the information and sharing it; why should not rep gains should reflect that?The moderation team is under no obligation to revert the CW in this case, nor are they obligated to leave it be, but I would lean toward reverting it myself, for reasons which follow.We've talked about posting answers from other sites, and it's pretty clear this is not cheese.Community wiki used to be massively overused. Changes to the editing system rendered its original purpose largely moot, and there's now a lot of confusion about CW's role in the Stack mechanics. These days there are three basic reasons to use CW:I do not see this particular answer needing CW to make it "easier to edit and maintain by a wider group of users," so I do not see any reason for it to be a community wiki. Community wiki is a tool with a specific set of uses, and CW rollbacks are left to mod discretion. One of the responsibilities of our moderators is to help the community use the right tools for the job at hand.As for the answer itself--it's not very good by lit.se standards, because it was written for a different site with different priorities. And the question itself is under a tag whose implementation is still being debated, so quality there is... in flux, I suppose we could say. We need to bring in our own expertise and tailor the answer to meet the expectations of our own Stack.3. Need to Change Edit Approval Limits for Tag Wiki EditorsI just upped it from 3 to 5. Hopefully this alleviates the issue a bit. If we still notice a pattern of users being blocked we can look at adjusting further4. Difference between Wiki Library and Document LibraryYes there is difference, Below might be helpful to understand.Document library can contains documents, it can be any document like office documetnts doc,xls,ppt, js, css, jpg, png etc...any file extension you can think of. Main purpose of document library is to store documents. wiki library is a kind of document library which contains wiki pages, Wiki pages are html pages with rich text editing capabilities so that users can create pages using Rich Text Editor without knowing html in detail. So when wiki library template is selected it comes with some default columns created based on content type, this columns are useful to create wiki page. Making changes and edits in a wiki page is incredibly easy. Just click on the edit button (at the top of the page) and immediately the page appears as an editor's version of the page. You can then make edits straight away and simply hit save. The page will instantly be up and running with your changes in place.