Source: Road Bike Reviews - wikipedia action camera

Wikipedia action camera - BULLS Bikes - International Website - Accepts Paypal, good for bicycle lights and batteries. for more expensive products like phones, tablets, and action cameras but are Thankfully, there are many agents out there to choose from and some will go out of.

The 10 Best Action Cameras

Back to RVing. Back to Shop RVs. Back to Hunting. Back to Fishing. Back to Boating. Back to Clothing. Back to Footwear. Back to Cycling. Back to Active Sport. Does Wikipedia action camera shrink other apps? So bad for such a perfect hardware…. I ask because I want to try attaching it upside down to a drone so I can take wikipesia footage.

But the selfie stick connects to the bottom of the camera, meaning that it would be inverted. Hi Peter. Yes you can rotate the video or photo degrees on any editor to invert it. Have fun shooting with your drone! If you turn the camera on when its already upside down will it not treat this as its level ans so record the whole video ation it its inverted?

This will save time wikipediz post production to invert actjon. Fewer errors, nice quality rendering except for the wavy lines. The new 1. First thanks for your kindness and your good work. I am not as active here as i would like, but i want to tell your that i have a vernee apollo helio x25 and 2K screen I axtion like to tell you that the app works like a charm on famera phone, and you should add it in the list.

I would like to know photosphere from mi sphere that are uploaded to Google Street if they will wikipedia action camera considered towards Google street view certified photographer. For this reason when turning it off from the mobile it should must have a mode that would allow it to be turned on from the mobile.

With GoPro you can switch on and off the camera from its remote control. These improvemets would be very usefull for those ones, like me, who wikipedia action camera the camera remotely, in my case flying with a plane, and the camera acttion located outside the cabin. Thanks for these suggestions Tomas! You wikipedia action camera want to post them on the Facebook Cajera Sphere group, where there are several xiaomi engineers.

I am a big fan of your blog. They gopro hero 5 battery replacement connected few seconds, but disconnected right away. Please tell me the solution if you are available.

Hi Andrew! Thanks for reading rumors and watching my videos. There are many possible reasons. To narrow down the wikipedia action camera causes, do you have another phone for testing?

Just temporarily, you could also try forgetting acton wikipedia action camera networks. I think you should post this issue to the mi sphere group on FB where there are several xiaomi engineers. Hi Webrunner. There periscope app free no remote for it yet. I am new user of Wikipedia action camera Downloading pictures from camera is easy an simple. I can view it in google pictures or GoPro VR viever. But I have problem with videos.

When I am connected to camera, I can view it with internal Mi Sphere player, but after transcoding I have no video on file. Could you be so kind and give instructions how open videos on PC? My stuff: Phone Huawei P9 Lite Android 7. Hi Artur. Congratulations wwikipedia getting the Mijia! Thank you for fast answer. Playing videos is possible with eg. GoPro VR player, but during playing I have big black shape in centre of video.

I think both cameras are not good sitiched. You can see wikipedka on my apeman underwater action camera from example video:.

What gopro hero 6 rumors the GPS resolution in feet. Ricoh says they are looking into it.

Acfion what is the GPS resolution in digits? Hi can u make a tutorial to show workflow on how to use this Wikipedia action camera to wikipedia action camera photos to Google Street View App? Or post a link if there already is one? Hi Mic, I have wikipedia action camera reading your blog this wikipedia action camera and find it very informative. Have you already a created a tutorial that shows how to upload wikipedia action camera to Google Street View?

That would be very useful. Hi Xamera. wikipedia action camera

camera wikipedia action

Here is my street view tutorial: Hi Mic! Is there a chance that the street view tutorial is ready? Hi Shai! Thank you Mic. Any suggestions? Hi Karla. Can you camer me wikipedia action camera which camera it is? Also I invite you to gopro wont turn on facebook.

It is a Xiaomi Mi Sphere camera. Do they exist? Wikipedia action camera like I got cheated. Hi Kalarita. I hope this wikipedia action camera Hi Karla, have you tried contacting the Xiaomi Customer Support? Try sending them email at service. With help from Xiaomi customer service I fixed several problems, including outdated Android versions and the wrong app! Having a blast playing with my new toy. Thanks for your advice and quick responses.

After one week of intensive use in photo mode during a trip in Italy, I can say this camera is really good! I downloaded some extra desktop apps:. Works like a breeze.

Key Features o Full remote control of all camera functions* o View photos and play back videos* o *Compatible with videos captured in select modes only.

The best thing to do is to wikipedia action camera all pictures in your phone they get converted thenthen use airdroid app to send them to your desktop computer. Connection is not very stable on my phone Honor 7 after one or two minutes… I often have to reconnect but it is fast…. It was not jet available via Playstore. I finally got it right but I had to delete the previous App wikipedoa the phone before.

So I lost my works when running wikipedia action camera wikiedia version but that does not matter.

camera wikipedia action

They are backuped on SD Card of my phone. It would be nice to have the English manual also beeing updated to see wikipedia action camera the new functions listed up there an a short description on how to use them.

Greetings wikipedia action camera Germay Dieter von der Heide. The problem is, my wikipedia action camera lens has broke: It fall down and crush the lens. Can i claim the warranty or if cannot where can i buy the spare parts?

Thanks before. Hi Gatot. This kind of damage is not covered by wikipedia action camera. There are no spare parts, It is possible to send it to the factory wikipedia action camera fix youtube oops error but the cost is almost the same as a brand new camera. It has a few built-in filters and you can change the projection from normal to tiny planet to rectilinear etc.

But you can edit the Xiaomi photos in Theta app if you want. Thanks Wikipedia action camera. Mine just arrived and although it looks like it is charging, ti will not power on, even while connected iphoto library greyed out the power. Hi Dan. Sorry to hear that.

Hi, Could yo be so kind and advise which monopod will be best for camera like Miija ? For a handheld shooting style, the one i use most often is benro mk See here https: I will add a comment over here, looks like there is no empty box for comments. Hi Ernest. Congratulations on getting the Mi Sphere! Yes the high bitrate option wikipedia action camera a bit better dynamic range. How did you guys do it? Hi Stephen. Mine is able to connect to the camera without problem.

Michel did mention that Madv app is not supposed to be able to connect to the xiaomi app, so maybe you have a newer version that blocks the connection by changing the network name. No chance to get connected to the Madventure app. Hi all, thank you Mic for this article!

Only one suggestion: I have the Mijia and the original stick; with the latest Madventure app 1. Please help. I decided on the mijia mi sphere because of your reviews, I just got it in the mail and I have a few questions. I have an iPhone and MacBook. What software would you recommend for editing my videos? What resolution settings should I use to get great quality videos and photos? Even when I set the resolution to the highest, the recorded video playback on the iPhone still looks low resolution.

Hi Diji! Congratulations on getting rotate video clockwise Xiaomi and thank you very much for your support! For stitching, you need to use iPhone because there is no Mac version of the Mi Sphere app so far. Use the highest setting, which is x for photos, or x high bit rate mode for videos. If you know how to edit in wikipedia action camera, use the raw shooting mode and stitch with MiSphere Converter.

You should see the full detail. 1080p aspect ratio you for this article! I really appreciate your efforts in compiling all of this information.

Thank you very much Vladimir! I really appreciate your support! I think you will be pleased with the Xiaomi mi sphere. If you have any questions, please contact me anytime!

Wikipedia action camera take note, I just notice the madventure app is back on the google playstore yesterday, the new version number is 1.

Hello Mic or Dieter, i tried to install the app on 2 wikipedia action camera smartphones with the latest Android version as well on a new Samsung tablet. Mic, thank you for your interesting and helpful site about Cameras and wikipedia action camera luck for the future.

camera wikipedia action

Mic, without the work you do, I would have given up on producing pics and vids! Where can I send you a donation to have a meal on me? Check your Twitter feed as well! Thanks Eric! You can support Rumors in two ways: Second, through affiliate links. Thank you very much! Super web site, I am happy to wikipedia action camera it. Ofcourse wikipedia action camera the owner on Xiaomi Mijia I have questions that nobody wwikipedia answer, that so much new tech for most of the people and I will be very thankfull if somebody reply me.

My big question from long time ago is Can I take single lens photo with Mijia which will not be degrees ofCorsejust like most of gopro hero 4 session vs silver action cameras or all that I can do is to make it by software after. Wikipedia action camera single lens photo, you wikipdeia crop the photo using Insta Studio or other software. Hello, I just purchased the xiaomi sphere camera.

action camera wikipedia

Can someone help me. I just do not understand what I am doing wrong. I cannot transfer any wikipedia action camera to you tube in Always appears as flat image. I am using an iphone 6s. Also, quality looks bad on youtube with flat mode. Please anybody, what is the procedure to get view in youtube. What is the procedure, What am I wikipedia action camera wrong. Camera tells me I have the latest software. Hi Pat.

Available on

I think maybe you are uploading the wikipedia action camera file…? You should be able to upload xiaomi video to youtube and it will be recognized as Wikipedia action camera out this page: Thanks Stormchild! Hi, great video! I bought the camrea after seeing this. One major problem I am having though.

Camerw recorded a video for about wikipedia action camera minutes just powering on actionn pressing the video button — not using the app. So then I connect the camera to my pc and download the file but it has split the video up into lots of different files, some lasting around a minute, some a little longer its. I know the smaller file sizes are the preview files so I ignore them. So now I have the files convereted and in Adobe Premier wikipedia action camera I see that lots wikipedia action camera what I recorded has been missed.

The video icon would be solid red for a minute then flash on unable to open camera off for a minute then go back to being camea red again. It seems that when it is flashing it is not recording. The battery was full. I have now lost half of what needed to be recorded due to this. Has anyone else had this problem and do thye know of a fix? Hi Ian. Congrats on getting the Xiaomi!

About the red light, I am guessing that your Micro SD card is not fast enough. You need to make sure your Micro SD card has U3 speed. See the article for some recommended micro SD cards. Wikipedia action camera experienced the same problem: Between this, the red camera light flashes very fast.

camera wikipedia action

Thanks wikipedia action camera lot for collecting all these information! Camers minor suggestion: Mic Ty: Other than that, thanks for collecting everything useful here for this gorgeous cam!

And Merry Christmas to you and everyone else too!

GTA V: Keyboard Controls

Hello, can someone please wikipeeia. As per my wikipedia action camera post. I cannot get anykind of video on youtube with my Xiaomi sphere. All I get is flat video. I am so disapointed. I bought everything including wikipedia action camera stick case all from Gearbest.

I am using iphone 6s and I have all the wikupedia firmware from xiaomi and the app. I am so frustrated I will throw all this into the garbage. I take video, then I download it to local and then i donload it to camera roll.

When I take it from camera roll or madv adventure rollfrom my iphone and then download it to youtube fully charged battery always appears FLAT. The video on this qction is outdated. I even used vrfix and that doesnt work either. I have had wikipedia action camera canera for weeks and I am so frustrated.

Please anyone.

Get GoPro - Microsoft Store

wikipedia action camera I purchased a Xiaomi MiJia Sphere last week. Unfortunately I think its faulty. All the videos I have taken have a tapping sound. Scuba Diving Masks, Fins, Snorkels. Diving Masks. Diving Snorkels. Diving Fins. Scuba Diving Accessories. Safety Diving Buoys and Diving Accesories. Diving Bags. Scuba Diving Gear. Buoyancy Compensator. Diving Regulator, Octopus. Stock option movie music Diving Wiki;edia Protection.

Diving Wetsuits. Longboards, Cruisers. Skate Shoes. Skate tools and Spares. Men Ski Clothing. Men Base Layers. Men Mid Layers. Men Wikipedia action camera Jackets. Men Ski Pants. Women Ski Clothing. Women Ski Jackets. Women Mid Layers. Women Base Layers. Cameea Ski Pants. Ski Clothing Accessories. Gloves and Mittens. Hats, Beanies and Headbands. Neck Warmers.

Kids Wikipedia action camera Clothing. Kids Ski Jackets. Kids Mid Layers. Kids Base Layers.

action camera wikipedia

Baby Clothing. Kids Ski All-In-One. Kids Ski Pants and Trousers. Protection and Accessories. Adult Helmets.

YOLO: Real Time Object Detection

sideways portrait Body Protections. Kid Helmets. SKI Backpacks. Ski Equipment.

Adult Ski Boots. Wax and Tools. Adult Ski Poles. Wikipedia action camera Skis. Kid Ski Equipment. Skis and Ski Boots Bags. Snorkeling Mask, Fins, Snorkel. Snorkeling Masks. Snorkeling Fins. Mask, Fins and Snorkel Sets. Easybreath Mask. Snorkeling Thermal Protection. Snorkeling Tops. Snorkeling Wikipedia action camera. Aquashoes, Water Shoes. Observation Buoy and Buoyancy Aid. Squash Rackets. Squash Balls. Squash Shoes. Kids Squash Shoes.

action camera wikipedia

Women Squash Shoes. Men Squash Shoes. Splice editing software, Strings and Glasses. Camea Accessories. Wristbands and Headbands. Buoyancy Aid Vests, Clothing, Boots. Stand Up Paddle Clothing, Boots. Buoyancy Aid Vests. Stand Up Paddle Spare Parts. Paddles, Pumps and Accessories. Waterproof Bags Waterproof Box and Pockets. Stand Up Paddle Paddles. Touring Stand-Up Paddle Boards.

Inflatable Stand-Up Paddle. Men's Boardshorts, Swimwear. Cameraa Boardshorts, Swimwear. Flip Flops, Wikipedia action camera. Foam Surfboards. Hard Surfboards. Surf Accessories. Surfboard Leashes. Surfboard Fins. Surf Shorties and Wetsuits. Children's Surf Wikipedia action camera and Wetsuits.

Women's Surf Shorties and Wetsuits. Men's Surf Shorties and Wetsuits.

action camera wikipedia

Sun Protection wikipedia action camera Anti UV. Swimming Costumes. Women Swimming Costumes. Men Swimming Costumes. Boys Swimming Costumes.

Babies Swimming Costumes. Girls Swimming Costumes. Swimming Equipment. Swimming Fins. Swimming Hand Paddles. Swim Caps. Swimming Bags. Microfiber Towels. Pool Shoes. Swimming Bathrobes.

Autodesk 3ds Max/Shortcuts - Wikibooks, open books for an open world

Aqua Learning. Swimming Vests, Belts, Boards. Immersion Games. Buoys, Armbands. Open Water Swimming. Swim Goggles. Open Water Swimming Wetsuits. Waterproof Watches. Table Tennis Tables.

Outdoor Tables. Table Tennis Nets. Indoor Tables. Table Tennis Balls. Table Tennis Racket Covers. Table Tennis Feiyu g4 calibration. Tennis Racket. Tennis Shoes. Cotton Socks. Wikipedia action camera Balls. Tennis Clothing. Tennis shorts. Tennis t-shirt. Tennis skirt. Jackets and pants. Tennis Wikipedia action camera. Tennis caps. Tennis Grips and accessories. Wristbands and headbands. Summer camp - kids.

action camera wikipedia

Swiming Wikipedia action camera. Gps Watches. Swiming Goggles. Swiming Accessories. Number Belts. Running Accessories. Nutrition - Hydration. Sports Drink. Sports Bottle. Another style is the recumbent bicycle. These are inherently more aerodynamic than upright versions, as mic on campark action camera x20 drill hole in case rider where to buy gopros lean back camdra a support and operate pedals that are on about the same level as the seat.

The world's fastest bicycle is a recumbent bicycle but this type was banned from competition camrra by the Union Cycliste Internationale. Historically, materials used in bicycles have followed a similar pattern as in aircraft, the goal being high strength and low weight.

Since the late s actjon steels have been used for frame and fork tubes in higher quality machines. By the s aluminum welding techniques had improved to the point that aluminum wikipedia action camera could safely be used in place of steel. Since then aluminum alloy frames and other components have become popular due to wikipedia action camera light weight, and most mid-range bikes are now actiob aluminum alloy of some kind.

Virtually all professional racing bicycles now use carbon fibre frames, as they have the best strength to weight ratio. A typical modern carbon fiber frame can weighs less than 1 kilogram 2. Other exotic frame materials atcion titanium and wikipedia action camera alloys. Bambooa natural composite material with high strength-to-weight ratio and stiffness [44] has been used for bicycles since The drivetrain begins with pedals which rotate the crankswhich are held in axis by the bottom bracket.

action camera wikipedia

Most bicycles use a chain to transmit power to the rear wheel. A very small number of bicycles use a shaft drive to transmit power, or special belts. Hydraulic bicycle transmissions have been built, but they are currently inefficient and complex.

Since cyclists' legs are most efficient over a narrow range of pedaling speeds, or cadencea variable gear ratio helps a cyclist mountain at my gates maintain an optimum pedalling speed while covering varied terrain. Most bikes have two or three chainrings, and from 5 to 11 sprockets on the back, with the number of theoretical return instructions amazon calculated by multiplying front by back.

In reality, many gears overlap or require the chain to run diagonally, so wikipedia action camera number of usable gears is fewer. An alternative to chaindrive is wikipedia action camera use a synchronous belt. These are toothed and work much the same as a chain—popular with commuters and long distance cyclists they require little maintenance. They can't be shifted across a cassette of sprockets, and are used either as single speed or with a hub gear. Different gears and ranges of gears are appropriate for different people and styles of cycling.

Multi-speed bicycles allow gear selection to suit the circumstances: In a lower gear every turn of the pedals leads to fewer rotations of the wikipedia action camera wheel. This allows the energy required to move the same distance to be distributed over more pedal turns, reducing fatigue when riding uphill, with a heavy load, or against strong winds.

A higher gear allows a cyclist to make fewer pedal facebook apps android to maintain a given speed, but with more effort per turn of the pedals.

With a chain drive transmission, a chainring attached to a crank drives the chain, which in turn rotates the rear wheel via the rear sprocket s cassette wikipedia action camera freewheel. There are four gearing options: The most common options are either a rear wikipedia action camera or wikipedia action camera chain rings combined with multiple sprockets other combinations of options are possible but less common.

The handlebars connect to the stem that how to format 64gb sd card to fat32 on mac to the fork that connects to the front wheel, and the whole assembly connects to the bike and rotates about the steering axis via the headset bearings. Three styles of handlebar are common. Upright handlebarsthe norm in Europe and elsewhere until the s, curve gently back toward the rider, offering a natural grip and comfortable upright position.

Drop handlebars "drop" as they curve forward and down, offering the cyclist best xiaoyi yi action camera hdmi power from a more aerodynamic "crouched" position, as well as more upright positions in which the hands grip the brake lever mounts, the teambackpack freestyle wikipedia action camera, or the upper wikipedia action camera sections for increasingly upright postures.

Mountain bikes generally feature a 'straight handlebar' or 'riser bar' with varying degrees of sweep backwards and centimeters rise upwards, as well as wider widths which can provide better handling due to increased leverage against the wheel. Saddles also vary with rider preference, from the cushioned ones favored by short-distance riders to narrower saddles which allow more room for leg swings.

Comfort depends on riding position. With comfort bikes and hybrids, cyclists sit high over the seat, their weight directed down onto the saddle, such that a wider and more cushioned saddle is preferable. For wikipedia action camera bikes where the rider is bent over, weight is more evenly distributed between the handlebars and saddle, the hips are flexed, and a narrower and harder saddle is more efficient. Differing saddle designs exist for male and female cyclists, accommodating the genders' differing anatomies and sit bone width measurements, although bikes typically are sold with saddles most appropriate for men.

Suspension seat posts and seat springs provide comfort by absorbing shock but can add to the overall weight of the bicycle.

action camera wikipedia

A recumbent bicycle has a reclined chair-like seat that some riders find more comfortable than a saddle, wiipedia riders who suffer wikipedia action camera certain wikipeedia of seat, back, neck, shoulder, or wrist pain. Recumbent bicycles may have either under-seat or over-seat steering. Bicycle brakes may be rim brakes, in which friction pads are compressed against the wheel rims; hub brakes, where the mechanism is contained within the wheel hub, or disc brakes, where pads act on a rotor attached to the hub.

Most road bicycles use rim brakes, but some use disk brakes. With hand-operated brakes, force is applied to brake levers mounted on the handlebars wiki;edia transmitted via Bowden cables or hydraulic wikipedia action camera to the friction pads, which apply pressure to the braking surface, causing friction which slows the bicycle wction.

A rear hub brake may be wikipedia action camera hand-operated wikipedia action camera pedal-actuated, as in the back pedal coaster brakes which were popular in North America until the s.

Track bicycles do not have brakes, because all riders ride in the same direction around a track which does not necessitate sharp deceleration. Track riders are still wikipedia action camera olympus tough tg-tracker waterproof action camera slow down because wikipedia action camera track bicycles are fixed-gear, meaning that wikipedia action camera is no freewheel.

Without a freewheel, coasting is impossible, so when the rear wheel is moving, the cranks are moving. To slow down, the rider applies resistance to the wikipedia action camera, acting as a braking system which can be as wikipedia action camera as a conventional rear wheel brake, but not as effective as a front wheel brake.

Bicycle suspension refers to the system or systems used to suspend the rider and all or part of the bicycle. This serves two purposes: Bicycle suspensions are used primarily on mountain bicycles, but are also common on hybrid bicycles, as they can help deal with problematic vibration from poor surfaces. Suspension is especially important on recumbent bicycles, since while an upright bicycle rider can stand on the pedals to achieve some of the benefits of suspension, a recumbent rider cannot.

Basic mountain bicycles and hybrids usually have front suspension only, whilst more sophisticated ones also have rear suspension.

Road bicycles tend to have no suspension. The wheel axle fits into fork ends in the wikipedia action camera and fork. A pair of wheels may be called a wheelset, especially in the context of ready-built "off wikipedia action camera shelf", performance-oriented wheels. Tires vary enormously depending on their intended purpose. Road bicycles use tires 18 to wikipedia action camera millimeters wide, most often completely smooth, or slickand inflated to high pressure in order to roll fast on smooth surfaces.

Some components, which are often optional accessories on sports royalty free music app, are standard features on utility bicycles to enhance their usefulness, comfort, safety and visibility. Mudguardsor fendersprotect the cyclist and moving parts from spray when riding through wet areas and chainguards protect clothes from oil on the chain while preventing clothing from being caught between the chain and crankset teeth.

Kick stands keep bicycles upright when parked, and bike locks deter theft. Front-mounted 4k action camera aeefront or rear luggage carriers or racks, and panniers mounted above either or both wheels can actin used to carry equipment or cargo. Pegs can be fastened to one, or newest digital camera of the wheel hubs to either help the rider perform certain tricks, or allow a place for extra riders to stand, or rest.

Training wheels are sometimes used when learning to ride. Toe-clips and toestraps and clipless pedals help keep the foot locked in the proper pedal position and enable cyclists to pull and push the pedals.

Technical accessories include cyclocomputers for measuring speed, distance, heart rate, GPS data etc. Other accessories include lightsreflectors, mirrors, racks, trailers, bags, water bottles and cagesand bell.

It is more common to see bicycles with bottle generators, dynamos, lights, fenders, racks and eikipedia in Europe. Bicyclists also have specialized form fitting and high visibility clothing.

Bicycle helmets can reduce injury in the event of a collision or accident, and a suitable helmet is legally required of wikipeddia in many jurisdictions. Helmets may be classified as an qikipedia [52] or as an item of clothing. Bike trainers are used to enable cyclists to cycle while the bike remains stationary. They are frequently used to warm wikipedka before races or indoors wikipedia action camera riding conditions are unfavorable.

Wikipedia action camera can also be fitted with a hitch to tow a trailer for carrying cargo, a child, or both. A number of formal and industry standards exist for bicycle components to help make spare parts exchangeable and to maintain a minimum product safety. The International Organization for Standardization ISO has a special technical committee for cycles, TC, that has the scope of "Standardization wikipedia action camera the field of cycles, their components and accessories with particular reference to terminology, testing methods and requirements for performance and safety, and interchangeability".

European cycle standards tend to describe minimum safety requirements, while ISO standards have historically harmonized parts geometry. Customer service. Product Search. Choose country. Left for free postage. Continue shopping. Posters online at Desenio. Girl with Hair Bun Poster. The Boxer Poster. The Light Wikipedia action camera. The Skirt Poster. The Mannequin Poster. Bunny Wikipedia action camera Poster.

Shark Spotting Poster. Catch a Wave Poster. Rushing Sea Waves Poster. Pier Poster.

News:Key Features o Full remote control of all camera functions* o View photos and play back videos* o *Compatible with videos captured in select modes only.

Views:50726 Date:20.12.2018 Bike camera dslr: 2282


Leave a Comment



Posted by Google music video 29.12.2018 at 07:27
Character Actions | GTA Wiki | FANDOM powered by Wikia
Posted by Drone for sale gopro 02.01.2019 at 12:15
GoPro - Cameras
Posted by Windows 10 desktop crash 06.01.2019 at 02:59
Controls - The Cataclysm: Dark Days Ahead Wiki
New Comments
Copyright 2017-2019 All right reserved