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Electric Fuel Buying Guide

Electric Fuel Buying Guide

2021-11-16
Digah Company
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On this page, you can find quality content focused on electric fuel. You can also get the latest products and articles that are related to electric fuel for free. If you have any questions or want to get more information on electric fuel, please feel free to contact us.

Guangzhou House Empire Construction&Furnishing Co.,Ltd is committed to delivering quality electric fuel and suchlike products to meet or exceed customer expectations and is continually focusing on improving manufacturing processes. We are achieving this by monitoring our performance against our established objectives and identifying areas in our process that need improvement.We have been strengthening our local R&D capability to design and localize our products in the overseas market to cater to the local people's needs and has succeeded in promoting them. Through those marketing activities, the brand influence of our brand -Digah Company is highly increased and we glory in allying with more and more overseas enterprises.Here at Digah Company, we are proud of what we have been doing for years. From the preliminary discussion about the design, style, and specifications of electric fuel and other products, to sample making, and then to shipping, we take every detailed process into serious consideration to serve customers with extreme care.
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Video and Image Recognition Will Occupy the Largest Edge AI Software Market
Video and Image Recognition Will Occupy the Largest Edge AI Software Market
Markets and markets, the world's second largest market research institution, recently released a report that the scale of the global edge artificial intelligence (AI) software market is US $356 million, which is expected to increase to US $1152 million by 2023, and the annual compound growth rate in the forecast period (2018-2023) is 26.5%.The report points out that the increase in the workload of enterprises on the cloud and the rapid growth in the number of intelligent applications are the main driving forces driving the continuous growth of the global edge artificial intelligence (AI) software market. In addition, the increasing investment in data management strategies, the existence of the largest number of edge AI software suppliers and the increase in government spending on AI technology will contribute to the growth of edge AI software market in the forecast period.Relevant data show that with the rapid development of the Internet of things and the advent of the era of data processing 2.0, edge computing has quickly become a popular technology. IDC data shows that in the future, more than 50% of the data needs to be analyzed, processed and stored at the edge of the network. The scale of the edge computing market will exceed trillion, becoming an emerging market equal to cloud computing. With the advent of the wave of artificial intelligence, edge computing AI has gradually become a hot topic in the market. After all, the combination of artificial intelligence and load integration will occur in the future edge computing system.In this report, after investigating the marginal artificial intelligence (AI) software markets in North America, Europe, Asia Pacific, Latin America and Middle East Asia, markets and markets draw the following conclusions——From the field of application, the application of autopilot will increase at the highest CAGR in the forecast period.At present, the edge AI software market is widely used in automatic driving vehicles, access management, video surveillance, remote monitoring and predictive maintenance, telemetry (location services), energy management, AR, VR and intelligent wearable devices. But in general, the demand for AI software is most urgent for self driving vehicles.The edge AI software plays a vital role in the automatic driving vehicle. This is because the edge AI software provides the opportunity of digital conversion in the process of providing real-time analysis and direct analysis of more contextual information. The AI in an autopilot runs on the local processor and explains the virtual world model to determine the action taken on the car. With the help of AI based autopilot, automakers can analyze driving patterns and help improve roads to reduce accidents.From the data source side, According to different data sources, the edge AI software market can be divided into five markets: video and image recognition, speech recognition, biometric data, sensor data and mobile data. Driven by the new technology of artificial intelligence, the level of image recognition by machine began to exceed that of human beings, and began to be widely used on the edge side.With the emergence of AI and machine learning (ML) in edge devices, users can now extract entities from videos and images and build applications to find information from videos. This has been widely implemented in the field of video surveillance.Today, most suppliers in the market provide edge AI software for local analysis of images, video, gestures, sounds and actions on devices.In the solution, the platform will grow at a high CAGR during the forecast periodMarketsandmarkets believes that according to different components, the current edge AI software market can be divided into two markets: solutions and services. The former includes software tools and platforms, and the latter includes training and consulting, system integration and testing, support and maintenance. According to the report, the edge AI platform provides users with AI applications to enable small devices to have intelligent and data processing functions. Users can extract actionable insights from edge generated data in real time and enhance the customer experience.During the forecast period, it is estimated that North America will have the largest market scale in the edge AI software marketNorth America is expected to occupy the largest market size in the global edge AI software market, while the Asia Pacific region (APAC) is expected to grow at the highest compound annual growth rate during the forecast period.In the Asia Pacific region, the highest growth rate may be due to the large investment made by the private and public sectors to enhance AI and ml technologies, resulting in increased demand for edge AI solutions for data security and privacy.North America is expected to become a leading region in the adoption and development of edge artificial intelligence software.
H2O Poll: Did You Ever Notice a Difference in Water Taste From City to City..?
H2O Poll: Did You Ever Notice a Difference in Water Taste From City to City..?
h2O Poll: did you ever notice a difference in water taste from city to city..?no, it all tastes the same to me— — — — — —why in the reaction between benzoic acid and NaOH easily extracted into H2O?The NaOH forms water and sodium benzoate which is soluble in water. You are right the protonated form of benzoic acid is not soluble in water but the salt is— — — — — —What is the use of NaClH2O?This reaction constitutes of salt(NaCl) and water(H2O). It is just dissolving salt and water which gives salt water solution as the product.2NaCl 2H2O = 2NaOH Cl2 H2OThe use of salt water solution is as follows:It is used to manufacture hydrogen gas. It is also used to add taste to the food while cooking.It also works as an antiseptic fluid. These are few of the uses of salt water solution.What is the use of NaClH2O?— — — — — —Why is Charlotte's In H2o add water so mean?Charlotte Watsford (Brittany Byrnes) was mean towards Cleo Sertori (Phoebe Tonkin) because she once dated Cleo's ex-boyfriend Lewis McCartney (Angus McLaren) and because the characters of Emma Gilbert (Claire Holt) and Rikki Chadwick (Cariba Heine) were friends with Cleo, they too suffered the wrath of Charlotte. Plus, Charlotte felt as though she deserved to be a mermaid because her grandma Gracie Watsford was a mermaid back in the 50s along with her friends Louise Chatham and Julia Dove. On a little side-note; I think of the song "Icky Vicky" from "The Fairly Odd Parents" whenever I think of Charlotte because she and Vicky have red hair and are nasty towards anyone and everyone but Charlotte ramps it up a few notches by being bitchy, spiteful and cruel. Here are the lyrics to "Icky Charlotte": C! H! A! R! L! O! T! T! E! The sound of her name makes little kids scream! AHHH! Hey Charlotte, you are so so icky; just the thought of being around you makes Cleo oh-so sick-y. Hey Charlotte, can you please explain why you get so much enjoyment out of causing Emma pain? Oh, oh, oh! A chick who's just plain mean, a sour sweet sixteen. She's a fire-breathing dragon in a pair of black jeans! EW! AHHH! Hey Charlotte, can you tell us true how Lewis got the bad luck to be stuck with you? Oh Charlotte, can we say one thing that it's your super total yuckiness that makes Rikki wanna sing! Icky Charlotte! EW! EW! Icky Charlotte! EW! EW! Icky Charlotte! EW! EW! Icky Charlotte! EW! EW! Icky Charlotte!.— — — — — —Why is the std. enthalpy change of formation for H2O (l) more exothermic than that of H2O (g)?H = H product - H reactant = negative value in this case because exothermicbut the value in the case of liquid water is greater than gas water because the heat of vaporization or boiling the molecule from liquid to gas— — — — — —Is it possible to Run vehicle on H2O ?No, you cannot run a car on water alone and this has been covered many times in the past, water does not burn, thus it cannot be used as fuel— — — — — —How do we split H2O to hydrogen and oxygen?Electrolysis of water is an electrolytic process which decomposes water into oxygen and hydrogen gas with the aid of an electric current, where a power source from a 6 volt battery is commonly used. The electrolysis cell consists of two electrodes (usually an inert metal such as platinum) submerged in an electrolyte and connected to opposite poles of a source of direct current— — — — — —in photosynthesis water (H2O) is split into 3 products, name these products?water is not split, it reacts with carbon dioxide when it has light energy from the sun, to form glucose and oxygen the balanced chemical equation is 6H2O 6CO2 --> C6H12O6 6O2 the glucose is used in respiration for growth etc. or stored, and the oxygen is released into the environment. The water comes from the roots and the carbon dioxide is taken in from the atmosphere— — — — — —What is the history of H2O?Id recommend typing this in google. People on yahoo answers can tell you anything on here— — — — — —Why do scientists assume that water (H2O) is a necessary element for the existence of extraterrestrial life?Because, in all of science's research, science has never found any living thing that can exist without water. Is it possible for live to live without water? Could be, but that's outside of science's understanding of things. Until science finds something that lives without water, studies that thing, and figures out how it can live without water, then science will continue to believe that water (H2O) is a necessary element for the existence of extraterrestrial life.
How to Record a Digital Whiteboard Video  OnlineBusinessTech.com
How to Record a Digital Whiteboard Video OnlineBusinessTech.com
In this tutorial, I am going to show you how to record a digital whiteboard video where you will record yourself writing or drawing on screen.Including digital whiteboard techniques in your video is a great way to make your videos more interesting and to engage your students. You can draw on a blank white background, include a custom branded whiteboard, or annotate images in order to demonstrate something.The are 4 things you need :• You need some sort of digital drawing device to record your writing.• You need a drawing program that you can draw in. (There are many free options that work really well.)• You need a screen capture program to record the screen while you draw.• You need a video editing program to edit the video in post production.Watch the video below, then continue reading.The first thing you need to record a digital whiteboard is some sort of digital drawing device. If you already own a computer or laptop, the best option is to buy a digital drawing tablet, like the Wacom Intuos SA drawing tablet is essentially a mouse device that is controlled by a special pen. When you tap the pen to the surface it acts as a "left-click", but it also senses the position of the pen just by hovering over the surface. So, it tends to feel really natural when you are using it.They also have pressure sensitivity built into them, so depending upon how hard you press the pen to the surface, the darker the line will show up. The pen has a couple of buttons on the side that you can assign to different actions as well. I have been using Wacom drawing tablets for 5-6 years now, and they still work great. I would recommend getting the Wacom CTL4100 Intuos ($80 Amazon).The only drawback to these types of drawing tablets is that you have to look up at your screen while you write, so you need good hand-eye coordination. Wacom also makes several drawing tablets that have screens built-in, so you can directly see what you are drawing, but if you are going to spend that kind of money, I would recommend getting a Microsoft Surface Pro instead.The Surface Pro is like the jack of all trades of devices. It's a tablet, but when you connect its keyboard, it's also a fully functional laptop. The best part is it runs Windows 10, so any program you can run on your desktop computer, you can run on this. It's not like a simplified Android or Chrome operating system, it's full-blown Windows! I love this thing.Once you have a drawing tablet, you will need to decide which drawing program you want to use.You can use nearly any program that allows you to manually draw in it. Photoshop, Paint 3D, Gimp, Powerpoint, are all programs I've used to do this. Here are my top recommendations:For Windows users, Paint 3D is a great program to use for digital whiteboards. In addition to the nice selection of drawing tools, you can also insert 3D models from the free 3D library. You can orbit them around, then annotate them in 2D.I love the simplicity of Microsoft Whiteboard. It works extremely well with my Microsoft Surface Pro. One thing that's cool is you can have multiple people connect to a whiteboard for live collaboration.SketchBook is a professional drawing program built specifically to be used with drawing tablets. It has a very easy to use interface, and it looks great. It's free! Once you have SketchBook installed and opened, you can pick a brush to use. For digital whiteboards, I like to use the felt tip pen at a size of about 5. I like the balance between heavy line weight and soft edges that combination has.You also have the ability to import images onto the canvas. This is great if you have a custom background you want to draw on, or if you want to annotate a specific image in order to demonstrate something. Just go to File > Add Image. Then, tap ESC to close the Move tooltip.This is your "whiteboard", where you will be drawing on your screen, now you will need to record your screen. It's really important to make sure your canvas is zoomed to actual size, to prevent any pixelation in your screen capture.To record your screen, you will need screen capture software. I use Camtasia, which not only includes screen capture software but also comes with a full video editing studio as well. But you can also use the built-in XBox Game Bar on Windows, or Quicktime on Mac.There are many things I like about Camtasia, including the fact that you can choose a preset aspect ratio, full screen, or lock to a window. You can also record a web cam and microphone at the same time as the screen.Another free option for screen recording is OBS. It's a pretty powerful program, but not as simple to use as Camtasia.There are a few different scenarios you might find yourself recording digital whiteboard. A common misconception is that you must record your digital whiteboard along with your audio in real time. But in most cases, you will find it easier to record them separately.One important thing to remember is that your digital whiteboard should have minimal effect on the speed and flow of your dialog! If you are dragging through a video while spelling out each word in real time while saying "Thhhhhhiiiiiisssss iiiiiiiiiiissssss........ uuuuuuhhhhh........ Tuuuuuuuuutooooorrrriiiiaaaalllll ...........Uuuuuuhhhhhbbbooooooooooooouuuuutttt........" you are missing the whole point of doing a digital whiteboard. Your digital whiteboard should enhance your videos, not inhibit them.Recording your audio and screencast at the same time might seem like the most logical and straight-forward solution for creating a whiteboard presentation. After all, that's how all of our teachers in school do it, right? They would draw on the board during the presentation of the days' lesson.Many of the videos at Khan Academy take this approach, and they do a good job of it. But, in my personal experience, I find myself shying away from this approach (especially when I first started out) for a few reasons:• Writing on screen is hard! It takes a lot of practice to get it right, and recording everything in real time can be stressful, especially if you are brand new to it.• Writing on screen takes time. Meaning, you may be well finished with your statement, but you are still scribbling away trying to catch up with your writing. This dead space can sometimes make people lose interest. This is especially true if you are going to be drawing or illustrating.• Sometimes, I just feel like I am struggling to do two things at the same time, and in the end my message suffers. I lose my train of thought, or I misspell words.If you find yourself overwhelmed while trying to record audio and draw at the same time, do not worry, there are some other methods you can use to make it less stressful.In most situations, you do not need to record your whiteboard at the same time you record the audio. The pace of speaking and writing rarely match up, and you will almost always need to transition between new canvases to illustrate new points, which requires post production editing anyways. For instance, when I recorded my tutorial on setting up a WordPress site, I recorded video and audio of me talking, while sitting at my desk. Next, I used Adobe Premiere to edit the video and cut out the junk in order to make a complete, concise tutorial. I essentially completed all the post production on this video before even thinking about digital whiteboard.At that point, I reviewed the video again and identified some areas where I thought I could use digital whiteboard in order to illustrate my point a little better. One example was when I was describing how exactly hosting works, I wanted to illustrate some servers, and how they deliver your site all around the world. So I wanted to draw some files, then some arrows pointing to a server, then have some more arrows point to the earth, then have an arrow wrap around the earth as if to show that your web site is accessible all over the world.Once I had this idea in my head, I started recording the digital whiteboard. I did not worry about timing, or pace. I just drew what I wanted to draw. If I messed up, I hit undo. All of this is going to be edited in the video editing software (Cut out the mistakes, increase the speed to match the audio), so there's no need to stress out about getting it right the first time, or drawing really fast to get it done at the right pace. Take your time, enjoy it, and have fun!A hybrid approach to recording whiteboard is to record your audio and your whiteboard simultaneously, but leaving silence as needed in order to give yourself enough time to finish drawing. Then, in your video editing software, you can take the silent part of the clip (where you are finishing up a drawing), and increase the playback speed to reduce the amount of dead space in the final video.When you are recording audio and whiteboard at the same time, make sure you give yourself enough time between phrases to finish writing. Do not feel like you need to talk while you are writing just to fill in dead space. Just finish writing/drawing, and you can speed up that clip of video in post production.The biggest challenge with this approach is keeping your train of thought in between the silences, and maintaining the same vocal intensity and rhythm throughout.• Do not feel like you have to show the animation of every single word or illustration you make. It's ok to cut to the completed version of the drawing at times when you need to save time.• You can create transparent overlays by using a chroma key effect inside your video editing program, in order to overlay your writing on top of videos.• Here's a good example of the digital whiteboard in use• Here's another example. Not digital, but a really good example of how drawing captures attention,• Using a slideshow program like Powerpoint allows you to attach your annotations to each slide, so when you go to a new slide, the annotations will disappear.• Camtasia has a built-in feature called ScreenDraw, which lets you draw on the screen, over the top of anything that's on your screen.• In most video production software, you have the ability to export a single frame as an image. Bring that image into your drawing program, and line up your screen capture window with it and draw on top of it. Import it back into your video and place the clip right where you exported the frame. It will create a "freeze frame" effect and show you drawing on top of it.• Do not be afraid of using regular text on the screen. You do not have to draw everything by hand. (Especially if you have poor handwriting like me)• In Camtasia, you can disable the tooltip, so you do not see the mouse hovering on the screen.• Do not leave your pen tablet stylus sitting on top of the tablet, even though it's not touching the tablet, it will still control the mouse position, making it impossible to use your regular mouse. If you notice your cursor not moving, that's probably the reason.hey thanks for ur time. I really need 2 find a free video/sound converter i need it ASAP?google "Any Video Converter" does sound too
Metal Injection Molding Offers OEMs Edge and Safety with Disposables
Metal Injection Molding Offers OEMs Edge and Safety with Disposables
Medical instruments used in surgery today often require more elaborate features and added functionality than they did in the past, largely due to the growth in minimally invasive surgery. For this reason, greater attention to detail is critical in product design and development. To meet the demand for small, complex, lightweight surgical products, medical device original equipment manufacturers (OEMs) are increasingly opting for disposable surgical tools and product offerings, which provide flexible, off-the-shelf single-use sterile solutions to surgeons and hospitals. Much of the demand is also meant to address an increase in hospital acquired infections (HAIs), as single-use instruments offer a safer approach to preventing transmission of infections versus reusable instruments that undergo repeated use and sterilization. OEMs also want their contract manufacturing organization (CMO) partners to be able to meet these ever-changing needs to support surgeons and their patients. It is why innovative technology continues to help achieve more advanced features that are cost effective and efficient to produce. Producing small, high-strength disposable surgical components and products can be accomplished effectively with both a metal injection molding (MIM) process and traditional machining. However, efficiency is a key factor in determining which approach is best to use. Both traditional machining and MIM have their advantages and disadvantages in relation to the production of components for medical devices, especially where parts may be smaller and require more maneuverability. To determine what is best to use, the following considerations needs to be factored into the decision making: The use of MIM in medical device manufacturing - in particular to make minimally invasive surgical tools and micro surgical assist devices - has been growing exponentially over the last several decades, and with good reason. Minimally invasive surgery offers many advantages for patients, including reduced pain, less injury to tissue, shorter hospital stays, and faster recovery. And, given the growth in minimally invasive surgery, MIM is a core capability for any CMO looking to stay competitive in today's medtech marketplace. A MIM process is ideal for producing very small, intricate parts and products with complex geometries at high volumes, such as handheld tools used for cutting and articulating during surgery. Devices produced through MIM have excellent strength and properties and often can be produced at a lower cost than traditional metal machining and die casting. Overall, MIM advantages include: None Greater design freedom. With MIM, parts can be designed and manufactured with minimal design restrictions. In addition, almost all design changes are possible within the shortest development cycle and turnaround time. None Complex and intricately shaped parts. MIM is ideal for producing complex-shaped components as well as parts that require assembly or multiple steps to put together. High production requirements. MIM is most beneficial in high-volume production of small precision parts with complicated design geometry. The process lends itself to automation where high volumes and consistent quality are required. None Miniaturization. MIM technology is the best viable process for producing miniature parts economically. The MIM process is similar to plastic injection molding but uses metal feedstock instead of plastic. It is a hybrid technology that combines plastic injection molding with powdered metallurgy. The initial step to MIM is material selection and preparation. Once the appropriate combinations of metal powder and organic binders are blended and compounded, an injection moldable feedstock is produced. Using an injection molding machine, the parts produced are then subjected to a binder removal process. Depending upon the type of binder used, different methods of debinding are applied. After debinding, the parts then go through a sintering process to ensure that they achieve the desired material composition, physical properties, and correct geometry. Processes include: Using a MIM process, 95- 98 percent of wrought materials properties can be achieved at significantly lower cost. When injection molding is being used, it is essential to keep in mind that not all feedstocks and methods are the same. For ideal mechanical properties, high density, and small dimensional variation, it is important to achieve constant shrinkage and diffusion of organic binders and surfactants from the metal matrix. Poor diffusion increases the empty spaces in the metal matrix by confining gas, and the lower density considerably decreases the strength of the part. A MIM process works best for small, complex precision components that traditional machining cannot produce cost-effectively. Adding complexity to traditional machining adds cost as well as setup and overall production time, and machining often requires multiple and secondary operations. Conventional machining has design limitations, is more labor intensive, and can lead to significant material waste. Machining requires assemblies, whereas MIM can produce complex geometries in a single highly automated process. MIM requires less labor and less production time, and it offers greater flexibility to scale up when volumes increase. With MIM, the biggest cost is up front in producing the custom mold, but the initial investment is offset by high production runs, which is why using a MIM process is most suitable for high-volume development programs. However, keep in mind that if designs are likely to change downstream, machining might provide more design flexibility over MIM. Once a mold is created, it is difficult to accommodate design changes. Both MIM and machining produce high-quality outputs. MIM provides a high degree of consistency at high production volumes because automation can be achieved very effectively with injection molding. Machining's longer cycle times may be better suited for lower production volumes of complex shapes with tighter tolerances. Secondary operations, including finishing, with MIM are minimal in comparison to machining in cases where the application has less critical tolerances. A MIM process can incorporate challenging material and eliminate a secondary sharpening operation, which can be add significant costs to a project. In terms of materials, MIM allows for customized material compositions according to the specific attributes required by the customers. Material compositions that can be used with a MIM process include stainless steels, low alloy steels, carbon steels, Ni-alloys, tool steels, and tungsten alloys. Another advantage of MIM versus machining is that it uses less raw material and reduces material waste, which then reduces cost of a project. MIM is better suited to thin wall sections, interior and exterior threads, and when words or numbers need to be molded into parts. Other design features such as undercuts, cross holes, and grooves can all be achieved with MIM. For CMOs looking to produce precision components and unique geometries with exceptional mechanical properties at high volumes, MIM is an effective and time-tested manufacturing process for the right application that can save costs for customers without sacrificing quality. CMOs can be invaluable partners to their OEM customers in providing specific manufacturing proficiencies when taking a design from an initial concept through production. CMOs can offer significant value through design for manufacturability (DFM) services that can help address any potential problems early during the design stage. Choosing a CMO partner with proven technical capabilities and expertise is crucial, and doing so helps save time and money and helps prevent wasting resources in the long run. It's also important that CMOs are sensitive to pressures that design engineers face with cost targets, time to market, and other critical success factors. CMOs can play a vital role in helping mitigate issues when design engineers dismiss manufacturing considerations, such as an over-designed or underdesigned product. These can prove detrimental to ultimately producing the parts successfully. This article was written by Steve Santoro, EVP of medical device contract manufacturer Micro, Somerset, NJ. He was recently appointed a charter board member of the School of Applied and Engineering Technology at the New Jersey Institute of Technology. For more information, visit here .1. LIP INJECTION HELP? Restylane,Perlane ?the ball like things are common with hyalronic acid injections and should be pressed smoothly with your fingertips to conform to lips. Restylane lasts not very long at all in the lips...it is approved for the smile lines as a lasting filler (the nasal labial folds) YOure best bet for a long lasting filler is SCULPTRA lasting a year - 2 years , it is expensive but i have seen wonderful resu;lts with it. It is a poly lactic acid and has long results , Also you might want to try JUvederm( another hylaronic filler) which can be put into lips and may last a bit longer but not a year or even close to it.2. 2004 Jetta - Secondary Air Injection System IncorrectThe secondary air injection system is part of the emissions control system. Under certain operating conditions, the secondary air pump runs to bring fresh air into the exhaust system. It supports the proper function of the catalytic converter by making sure there's enough oxygen in the exhaust gas. Will it hurt anything to drive the car? It could potentially lead to early failure of the catalytic converter, which is an expensive item on these VWs (do not ask me how I know).How would one fix the problem? The "probable causes" you listed are a really good start. You should test the function of these two items. First the easy way that requires some specialized tools: They can be checked with a specialized diagnostic tool like the VAG COM cable and software, which allows certain components like solenoid valves and motors to be to be tested by cycling power on and off to these components. This should be done with the engine off, if the component is working you will hear it operate. Solenoids should "click", and motors should "whir. " The advantage here is you do not need to get your hands dirty, unplug anything, or even know where the components are located in the engine bay.The harder way with no specialized tools is to locate the components in question and directly apply power to them with a length of suitable wire, again listening for a click or a whir.Other possible causes would be a break in the plumbing of the secondary air system or a connector that popped loose. EDIT IN RESPONSE TO NEW IMAGEWhat you have circled is the mass airflow sensor, which has nothing to do with the secondary air system. If I recall correctly, the secondary air pump is below the engine, on the front side, slightly to the left (drivers side) of the centerline3. can a token be used for sql injectionFirst and foremost: If the token is concatenated into a SQL query (without sufficient escaping), then yes, it can be used for SQL injection. Do not build queries by concatenation!Tokens, by themselves, have no permissions; they are just identifiers. The app's logic determines what permissions to give the bearer of the token, but it's up to the app to enforce that, and a (successful) SQL injection bypasses such checks. Databases also have permissions (at least, the better ones do), and the app will have certain permissions on the database that determines what a query the app sends to the DB can do (and all that a SQL injection is, from the perspective of the DB, is a query that the app sent over). A very security-conscious app will use the Principle of Least Privilege (which says you should never give anything more permissions than are needed to do its task), such that (for example) a DB query that is supposed to be read-only will be made using a connection with read-only permission on the DB, and in such a case an embedded DELETE subquery would indeed fail. However, in practice very few developers do this, and the app usually makes all queries using a connection with full permissions on the DB. The permissions of the token-bearing identified entity (presumably a user of a web app or similar) have no bearing whatsoever on the permissions that the app has when talking to its database. In fact, since a SQL injection requires modifying the token, it's no longer actually the correct identifier for that user, so it definitely is not going to be subject to user-specific access checks
Description of Electric Wrench Control Board of Induction Less DC Brushless Motor
Description of Electric Wrench Control Board of Induction Less DC Brushless Motor
Shenzhen chuangkeweixin Electronics Co., Ltd. focuses on the research and development of Brushless DC motor drive chips and solutions. The products are mainly used in automotive electronics, water pumps, vacuum cleaners, electric tools, fans, fans, etc. with rich R & D strength, we provide customers with cost-effective brushless DC motor drive chips and supporting complete solutions. We will uphold the management concept of "continuous innovation, integrity and mutual benefit" to win more customers' trust and affirmation, and jointly operate a long-term cooperation on a win-win basis.The following describes the brushless control board of electric wrench developed and designed by our company:1、 Circuit parametersInput voltage: 15-21v;Output current: 20A;Overcurrent protection: 35A;Applicable motor: inductive and non inductive motor driveFeatures: three gear voltage indication, three gear speed regulation, power feedback, forward and reverse selection, reverse light load self-stop, overcurrent protection and over temperature protectionProtection and undervoltage protection2、 Interface descriptionThe model of speed regulating switch tested by this product is jc15-2a;The speed regulating switch interface tested by this product is sh1.0-8, 1.0mm spacing 8pin interface line;3、 Power feedback function descriptionThe control board integrates the power feedback function, which can prolong the battery life; Specifically, in the process of motor rotation, release the speed regulating switch, and the motor continues to rotate due to inertia. At this time, the motor is equivalent to a generator, and the power generated is fed back to the battery for charging.Note: because the control board has the power feedback function, the control board can only be used in battery powered products, and the battery terminal cannot be connected with the reverse diode.4、 Battery level indication descriptionThe battery voltage is indicated in three gears. When the speed regulating switch is pressed, the indicator light turns on for 3 seconds and then turns off.When the battery voltage is > 22V, the power 3 indicator flashes. This state is overvoltage protection. The motor does not work and returns to the standby state.22V > when the battery voltage is ≥ 18.5v, the three power indicator lights are on;18.5v > when the battery voltage is ≥ 17V, the indicator lights of power 1 and power 2 are always on, and the indicator light of power 3 is off;17V > when the battery voltage is ≥ 15V, the power 1 indicator is always on, and the power 2 and power 3 indicators are off;When the pool voltage is less than 15V, the power 1 indicator flashes. This state is undervoltage protection. The motor does not work and returns to the standby state. 5、 Battery power protection Description: the battery voltage is not detected in the standby state. The speed regulating switch is pressed to trigger the power circuit and detect the battery voltage. When the battery voltage is lower than 15V, it will return to the standby state, the driving board will not act, and the low-voltage undervoltage protection; When the battery voltage is higher than 22V, it will return to the standby state, the drive board will not act, and overvoltage protection will be provided. 6、 Overtemperature protection description the control board sets the overtemperature protection function of the power tube. When the temperature of the on-board power tube exceeds 80, the power 2 indicator flashes, the motor does not work, and enters the overtemperature protection state. When the temperature of the on-board power tube is lower than 70, the control board releases the temperature protection and can work normally. When the power 2 indicator light flashes rapidly, the motor does not work, indicating that the on-board temperature sensor is faulty (short circuit or open circuit). VII. Overcurrent protection description the control board is set with 20A current limiting function. Under normal operation, the limiting current is less than 20A. When the current exceeds 35A, the motor stops working and enters overcurrent protection. Release the overcurrent protection after releasing the speed regulating switch, and the control board is in normal standby state. 8、 Reverse auto stop selection Description: turn the direction dial of the switch to the reverse direction. Under the power on state, press the key 1 for a long time within 10 seconds to select the reverse auto stop mode, and the reverse auto stop indicator lights up; Each time you press and hold the key, it will be selected in the two modes of releasing the reverse automatic stop and reverse automatic stop. Note: the reverse auto stop function can be set only when the forward and reverse paddle switch is in the reverse position, and it can not be set in the standby mode. Note: when reversing the self-stop mode, the rotation will continue only when the motor torque reaches a certain value. If the torque is less than a certain value (screw loosening), the rotation will stop. When reversing the automatic stop mode, when the product idles, it will stop immediately after turning, which is a normal function. 9、 The function memory description of three speed regulation gears is divided into high, medium and low speed settings. Press the speed regulation switch to indicate the last set gear. Release the speed regulation switch, and then press the key to select the speed regulation gear within 10 seconds. After each press of the key, it will be selected in three modes of high, medium and low, and the corresponding indicator light will be on. Speed of gear 1 (7500 RPM), speed of gear 2 (13000 RPM) and speed of gear 3 (20000 RPM) Note: the above speed tests the speed of the motor body when the battery voltage is 20V. The speed of motors of different models may be different. 10. Description of LED lamp output  When the speed regulation switch is pressed, the LED lamp is on. After releasing the speed regulation switch, there is no operation within 10 seconds, and the LED lamp goes out and enters the standby state. Shenzhen chuangkeweixin Electronics Co., Ltd. has recently produced the most popular brushless vacuum cleaner control board and submersible pump control board in the market. At the same time, it also undertakes all kinds of customized three-phase DC brushless motor control boards. If you have this demand, you are welcome to consult.
Is the Picture Taken by a 100 Million Pixel Mobile Phone Really Better Than That Taken by an Ordinar
Is the Picture Taken by a 100 Million Pixel Mobile Phone Really Better Than That Taken by an Ordinar
Mobile phone pixels have always been a hot topic and one of the main needs of many users. However, there is a problem. It seems that we have entered a misunderstanding - the higher the pixel of the mobile phone, the better. In fact, the truth is very cruel. You may not be able to take good photos with a 100 million pixel mobile phone.First of all, we should understand one thing, what is a pixel.All the pictures we see are actually composed of "color dots", and each individual color dot is what we often call "pixel". A picture is composed of 1 million color dots, and the pixel of the picture is 1 million.Usually, the cell phone pixels we touch refer to the single electronic components that sense light and image on the cell phone sensor. For example, a camera with 10 million light-sensitive devices is a 10 million pixel camera, a camera with 64 million light-sensitive devices is 64 million pixels, and so on.The higher the pixel, the larger the size of the photo, and there is more room for post-processing. In addition, the size of pixels is not fixed, and its arrangement order is not unique, such as common RGB sub-pixel arrangement, RGBW technology arrangement, pentile arrangement, etc. the change of this arrangement can also improve the picture resolution and photographing experience, but it is more important to determine the size of photosensitive elements.Theoretically, the larger the pixel size, the better the imagingThe combination of photosensitive elements and pixels is a good mobile phone.The image quality depends on the number of photons captured by the photosensitive element. The larger the photosensitive element, the more photons captured, the better the photosensitive performance, and the more delicate the photos taken. Therefore, the focus is not only high pixels, but also a big bottom.Referring to the figure above, the larger the pixel size, the better the noise and dynamic range of the image can be controlled, and the influence of the dispersion circle is less. Apple has been using 800W low pixels before. The big reason is to maintain a large pixel size.Under the bottom blessing, the one with high pixels wins the world.Area comparison between full frame photosensitive element and mobile phone photosensitive elementIn addition to the two, it is the various adjustments of mobile phone manufacturers about their products. Therefore, some people say that Apple's profit is higher than that of domestic mobile phones. After all, iPhone has a strong dependence on software optimization, which weakens the cost of hardware.Therefore, whether Apple, Samsung or domestic mobile phones, they are also very excellent products. The biggest difference is whether the hardware is upgraded or the software is optimized. Did you learn?
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