Guide to Shop USB Converter in Digah House Company

In order to ensure the operation quality of DCS system, the instrument signal input to the system must be accurate. Therefore, it must be installed correctly in strict accordance with gbj93-96 "automatic control installation atlas" and instrument operation manual. The requirements for the installation and use of instruments are as follows.Pressure transmitter1. Since the pressure tapping device for pressure and negative pressure is installed on the pipeline in the straight direction of the flow beam, it shall not be installed in the bending, corner, dead angle and vortex of the beam, which are enough to distort the static head.2. When installing the pressure tapping device for pressure or negative pressure, because it is perpendicular to the flow beam, the pressure tapping pipe shall not extend into the interior of the fluid pipeline or equipment. The pressure tapping port shall have a smooth outer edge without sharp edges. The continuously used conduit and accessories shall be neatly cut and deburred.3. The installation position of pressure tap on horizontal and inclined pipelines shall be at the upper part of the pipeline when the fluid is gas.When the fluid is liquid, the lower half of the pipeline is within the included angle range of 0-450 from the horizontal centerline or on the centerline of the pipeline. When the fluid is steam, the upper half of the pipeline is within the included angle range of 0-450 from the horizontal centerline or on the centerline of the pipeline.4. All pressure tapping devices must be equipped with primary doors, which shall be close to the pressure tapping device.5. The horizontal section connecting the impulse pipeline shall maintain a certain slope, and the inclined direction shall ensure the discharge of air or condensate. The gradient of the pipeline is required, and the pressure pulse pipeline is not less than 1:100. A blow down valve shall be installed at the pressure gauge of the pressure pulse pipeline to flush the pipeline and exhaust air.6. The impulse pipeline shall be purged before installation to ensure that the pipeline is clean and unblocked. The valves on the pipeline shall be subject to tightness test before installation. After the pipeline is laid, the tightness test shall be conducted again. Before start-up, fill the impulse pipeline with water (note that bubbles are not allowed to pour in during water filling to affect the measurement).7. For the placement of smart transmitter, please refer to the attached transmitter placement and operation manual.Temperature transmitter1. The temperature sensing element shall be placed at a place that can represent the temperature of the measured medium, and the temperature sensing element shall not be placed near the valve, elbow and dead corner of the equipment. The temperature sensing element should be placed obliquely, and its inclined direction should make the temperature sensing end face the fluid.2. When installing heat sensing elements on pipes with diameter less than 76mm, the method of expanding the pipe shall be adopted.3. In order to facilitate disassembly and prevent dirt from falling into the thermometer, platinum resistance thermometer is installed on the horizontal pipe, which is generally installed horizontally or slightly downward.4. The temperature sensing part of platinum resistance thermometer shall be installed at the center of the pipe, and the distance between the temperature end and the pipe center shall be 50-70mm.electromagnetic flowmeter 1. The environmental conditions (temperature, humidity, electromagnetic field, etc.) of the installation location must meet the requirements of the manual.2. Length of straight pipe section. According to the situation of the pipeline where the flowmeter is located, the necessary straight pipe length must be ensured. Generally, the upstream pipeline maintains a straight pipe section of more than 10d and the downstream pipeline maintains 3D-4D. D is the pipe diameter.3. The addition of chemical additives will affect the liquid conductivity and should not be injected upstream of the instrument. If it must be injected upstream, the reactor or straight pipe section with sufficient volume must be maintained to make the liquid conductivity flowing through the flowmeter stable.4. Installation method: regardless of horizontal, vertical and inclined installation, it must ensure that the measuring pipe of the instrument is always filled with liquid and there is no bubble (see the instrument manual). For solid particles or slurry, it is recommended to install vertically, with the flow direction from bottom to top. The plane of the electrode must be parallel to the ground.5. Grounding a. the working grounding of the flow sensor is to ensure that the reference potential is the same as the measured body, and the liquid level potential should be the same as the ground potential. The electromagnetic flowmeter is equipped with a grounding ring, which is used to establish liquid grounding through contact with liquid. According to the different pipeline materials where the flowmeter is located, the grounding connection mode shall be correctly adopted. The working grounding shall adhere to the principle of "single point grounding". (refer to the article "grounding measures for electromagnetic flowmeter" on page 48-49 of the fourth issue of "chemical automation and instrumentation" in 1998) the grounding resistance shall be ≤ 100 ohms. B. Shield grounding. The shielding layer of the signal cable output from the flow converter to the secondary instrument DCS system is grounded at one side of the control room and through the grounding busbar.6. Reasonable process procedures and correct operation. Prevent bubbles generated in the production process from flowing through the electromagnetic flowmeter.Vortex Flowmeter 1. Pipe support: if there is vibration in the pipeline, it shall be supported.2. Installation: if the pipeline is filled with liquid, the Reynolds number is greater than 2 × 104, the pipeline can be installed vertically or at an inclined angle.3. Valve position and straight pipe length A. generally, install the flowmeter upstream of the valve. The length of straight pipe before and after flow is > 20d and > 5D respectively. B. Install the valve upstream of the flowmeter: for the air pipeline using piston or roots blower and compressor or the high-pressure liquid pipe (about more than 1MPa) using piston or plunger pump, liquid vibration may occur. In these cases, the valve can be installed upstream of the flowmeter. At this time, the length of the straight pipe between the flowmeter and the valve shall be greater than 20d, and the length of the straight pipe downstream of the flowmeter shall be greater than 5D.4. Length of elbow and straight pipe section: the straight pipe section length of 20d shall be ensured upstream of the flow. If a gate valve is installed upstream of the flowmeter, a straight pipe length of at least 20-40d shall be guaranteed upstream.5. Length of reducing, expanding and straight pipes: the upstream of the flowmeter shall ensure the straight pipe length of 10d, and the downstream shall ensure the straight pipe length of 5D.6. Pressure measuring point: take the pressure measuring point between 2-7d at the downstream side of the flowmeter.7. Temperature measuring point: take the temperature measuring point between 1-2D distance at the downstream side of the temperature measuring point.Dynamic concentration transmitter（1） Installation of transmitter1. Position a. the installation position of the transmitter shall avoid mechanical damage and vibration. The electronic unit shall be installed in a cool and ventilated place to prevent slurry. It is recommended to install a waterproof baffle on it. B. The transmitter shall be installed as close as possible to the measuring point at the dilution water connection to ensure the shortest time lag. C. The transmitter can be installed on vertical and horizontal slurry pipes. The vertical position transmitter shall be perpendicular to the axis of the pump, and the horizontal position shall be installed on the side of the slurry pipe. It is recommended to install in a vertical position as far as possible.2. Distance a. the installation position of the transmitter shall consider the minimum stable distances L1 and L2 of the front and rear slurry pipes. Generally, L1 = 10d, L2 = 5D, D - pipe diameter. According to the actual flow and concentration, the length of L1 can also be estimated by using the attached drawings of the instrument operation manual, L2 = L1 × 0.30.3。 B. The estimation method is suitable for chemical pulp and long fiber pulp. If it is waste pulp, ground wood pulp and staple fiber pulp. The result of the above estimate is multiplied by 1.25.3. Connect the short pipe. When installing the transmitter to connect the short pipe, pay special attention to the distance h = 20-22mm from the blue mouth of the short pipe method to the inner wall of the slurry pipe. If the short pipe is processed and connected according to the adhesive paper provided with the equipment, the short pipe shall be added to the slurry pipe, but ensure that the inner wall of the slurry pipe is flush and welded without bulge.4. Slurry pipe: if the slurry pipe is made of carbon steel and other materials, it is difficult to weld. It is recommended to select a 1m long stainless steel pipe to install the transmitter, and the connecting short pipe is welded at the center.5. Transmitter sensing element A. do not mechanically collide with the blade, and do not lift the transmitter with manual blade or force. B. The blade shall be installed parallel to the slurry pipe and consistent with the slurry flow direction.6. Transmitter wiring A. all signal cables connected to the junction box must be 1.3-1.5mm2 multi-core shielded cable. B. All cables shall be protected by galvanized steel pipes or cable sleeves, and power and signal cables must be protected by pipes respectively.（2） Installation of, sampling valve and dilution water valve1. Sampling valve: the installation position can be selected below the transmitter for convenient operation.2. Dilution water pipe a. the installation position of dilution water valve shall be as close to the dilution point as possible. B. The dilution water pipe shall be vertically inserted into the suction side of the slurry pump for 15-50mm, and the water pipe is located between the slurry tank and the slurry pump, 1 / 3 away from the slurry pump. C. The dilution water pipe shall be capable of producing a flow rate of about 5m / s at the connection. D. The dilution water pressure shall be stable. It is recommended to install a pressure gauge on the water pipe.Flange type liquid level transmitter1. The transmitter shall be installed at another position at the bottom of the tank where the liquid level needs to be measured (it shall not be connected to the method port).2. The transmitter shall be installed at the place where the liquid is relatively stable, avoiding and far away from the turbulence equipment (such as agitator, slurry pump, etc.).Suggestions on prevention and control of electromechanical interference1. Power wires and measuring wires shall be installed in completely separate metal wire bridges, which shall be connected together and grounded every 100m. At least 2m distance shall be ensured between two wire bridges of different properties.2. The force switchgear shall be as far away from the instrument system as possible, and at least use a separate support.3. For the electrical shielding of instruments, the principle of "Faraday closing" shall be applied: there shall be complete and connected shielding around the conductor. The electrical shield shall be heavy woven (covering 80%), and the electrical shell or shielding layer can only be grounded at one end (generally connected to the power supply end) and continuously connected through the grounding box or cabinet.Quantitative valvea) The quantitative valve with a diameter of 50-250mm can be installed on vertical, horizontal and inclined pipes. 300mm-350mm shall be installed on the horizontal slurry pipe, and the adjustment machinery shall be upward.b) Clean the slurry pipe before installing the valve to ensure that there are no sundries on the slurry line and prevent mechanical damage to the quantitative cutting and sealing ring. The arrow direction of the cutting body is consistent with the slurry flow direction. The electronic unit can be installed near the metering station or in the control room. It shall avoid mechanical damage and vibration, be waterproof and slurry proof, and the ambient temperature shall not exceed 40 ℃Input type liquid level transmitter1. When installing in still water, such as deep well and pool, the method of inserting steel pipe is generally used. The inner diameter of steel pipe is ф About 45 mm, the steel pipe shall be drilled with several small holes at different heights to facilitate the smooth entry of water into the pipe.2. When installing in flowing water, such as water channel and non-stop mixing water, insert the inner diameter in ф For the steel pipe of about 45mm, several small holes shall be drilled at different heights on the opposite side of the water flow direction to make the water enter the pipe.3. The transmitter shall be installed vertically downward, and the transmitter shall be placed away from the liquid inlet and outlet and the mixer.4. If necessary, the steel wire can be wound around the transmitter and vibrated up and down with the steel wire to avoid breaking the cable.L-type three-way valveBefore installation, carefully confirm the valve model, specification and flow path switching, and install the valve in strict accordance with the valve instructions. Prevent the continuous phenomenon of connection and disconnection after taking over.

Sometimes we may need to perform packet conversion on multiple ADC channels, and there is an adjustable time interval between groups. For example, as illustrated below. First convert the first two channels, then the middle two channels, and then the last two channels.If we use the sampling query or interrupt mode, it is also possible to switch and configure the subsequent channels after every two channels are converted, and then start the ad module. As for that time interval, we often use timers to assist. Obviously, this can sometimes seem a little cumbersome.In this case, we can also consider using the discontinuous conversion mode of ADC. That is, an ADC conversion channel sequence is divided into several groups. Each ADC conversion trigger event will convert a group of ad channels, which will be carried out in turn until the conversion of the whole sequence is completed.For example, we use five channels ch1 / CH2 / CH3 / CH4 / CH5 of an ADC module, divide them into three groups, and use a timer to trigger the ADC. In the first trigger, AD conversion of ch1 / CH2 channels is performed, in the second trigger, AD conversion of CH3 / CH4 channels is performed, and in the third trigger, AD conversion of CH5 channel is completed. The fourth trigger performs the same conversion as the first trigger, and the cycle continues.We might as well give a practical example based on the above description. Use stm32f411 discovery development board for debugging verification. Five consecutive ad channels starting from ch1 using ADC1 module are divided into three groups. As shown in the figure below.We use the timer update event to trigger ADC conversion. The interval between group 1 and group 2 conversion and the interval between group 2 and group 3 conversion are controlled by timely adjusting the timing length of the timer.We use the timer update event to trigger DMA, and modify the value of arr by DMA to adjust the time interval between two adjacent groups of transitions. In addition, the conversion result of ADC triggers DMA through EOC event, and DMA orderly moves the conversion result to the specified memory space.After the conversion of the five channels of the whole ADC sequence is completed, the DMA transmission into the ADC is interrupted, and the conversion results of each channel are processed in the interrupt callback function. After that, the next round of ADC conversion can be started.Sort out the whole implementation process mentioned above:1. ADC conversion is triggered by the update event of the timer and performs packet conversion according to the intermittent mode.2. Two DMA transmission channels are enabled, one channel is used for the handling of ADC results, and the other channel is used for the update of timer arr value.When the first timing trigger event occurs, complete the conversion of the first group of ad channels [ch1 and CH2], trigger the DMA transmission of the timer, modify the value of arr, and determine the time interval between the first trigger event and the second trigger event; When the second timing trigger event occurs, complete the conversion of the second group of ad channels [CH3, CH4], trigger the DMA transmission of the timer, and modify the value of arr to determine the time interval between the second trigger event and the third trigger event; When the third trigger event occurs, only the conversion of group 3 ad channel [CH5] is performed here, and the ARR is not modified through DMA. Its value will be specified by the user in the callback function of DMA transmission completion interrupt of ADC.The whole process of configuration and code implementation is posted below for reference. Use the stm32cube MX tool for graphical configuration, and organize the code based on the stm32cube Library of ST company.It is assumed that after the conversion of the first group of ad channels, the conversion of the second group of ad channels is triggered after 0x7000 time units, and then the conversion of the third group of ad channels is triggered after 0x5000 time units. [in practical application, the time base parameters depend on the specific situation]1、 Configuration based on cubemx [RCC / sys configuration omitted].1.1 tim3 configuration, the update event of tim3 triggers ADC conversion and DMA for arr update.1.2 ADC configuration. [select 5 ADC channels, intermittent conversion mode, enable DMA transmission of ADC]2、 Generate initialization code.Based on stm32cube library, the engineering code based on ARM keil MDK integrated development environment is generated.3、 Add user code. [code based on stm32cube library]First, introduce the two arrays used in the user code, namely ADC_ Value [5] and data_ Arr[2].Where ADC_ Value [5] is used to store the conversion result of ADC channel, data_ Arr [2] is used to store arr data to change the timing cycle. They are accessed by different DMA streams.3.1 add the following user code in main().Line 1, clear the timer update event flag.The two lines in the red box respectively start the DMA transmission of ADC / tim3.The fourth step is to execute the DMA request that can update the tim3 event.4. Result validation.Connect the hardware, compile the code, and you can see the conversion results after running. The five ad channels are divided into three groups, and the conversion is triggered successively according to the predetermined time interval, and the conversion result is moved to the specified memory space by DMA. Through the debugger, we can see the ADC results and the corresponding changes of timer arr.Summary: here is mainly to introduce the ADC intermittent conversion mode of STM32 chip, and two peripherals, timer and DMA, are used at the same time. I hope it can bring some reference or enlightenment to readers and be used flexibly in my own development in the future. These peripherals are the most commonly used and basic peripherals of STM32 chip. If we can use them flexibly after mastering them, it will make our STM32 development work more convenient.

Your laptops USB port, the converter, or the mouse, one of them is faulty. Try to change the port, and converter or the mouse and see what happens. As I am using one, no software is needed for that.1. Where are M.2 USB devices?Nothing has changed since Mini PCIe. WiFi cards with Bluetooth still have their Bluetooth component interface with the host system via USB. For example, look at the Intel Dual Band Wireless-AC 8265 package specifications. It specifies both PCIe and USB.Other than that, some WWAN cards may probably use it. /edit: Yeah, here's one: Huawei MU736. It uses USB 2. 0 to communicate with the host system. It uses some additional pins to talk with the SIM card. The SIM card is inserted at a user-accessible location, which may be quite some distance from the WWAN card2. PS/2 to USB Adapter for a wireless mouse not working?PS/2 are the ports for the standard keyboard and mouse on computers3. Internal soundcard sometimes card 0 and sometimes card 2 with 2 usb micsAdd the following to some .conf file in /etc/modprobe.d/:(in whatever order you want)4. Remapping CapsLock to Control when using a PS2-to-USB adapter?You may be able to solve the problem by finding out the respective identities of the PS/2 -> USB adapter and the keyboard. Try the commandFor me it showed, among other things, that there is aThe first part of the USB identity code (04d9) identifies the manufacturer, and the second the product.Now you can use that information to discover the identities of devices connected to that adapter by typingWhat I got wasI have no keyboard attached to the adapter, but there is my old trackball mouse, Logitech TrackMan Marble FX. So I wanted to know more about the device identified above as id=9, and I used xinput command to get what I wanted:The first line of the listing wasThe listing also shows the properties of the device, and I used those to build commands needed for modifying those properties. What I ended with was two commands:The first line turns Button 3 of the TrackMan mouse into a Wheel emulation button. (Button 4 a.k.a. "8" does not seem to work at all). "Pointer" in the commands refers to the mouse and prevents confusing things with "keyboard" that could be attached to the same adapter (not in my system). Similarly you could perhaps modify the properties of your keyboard with commands likeetc with other individual properties5. Whats the differance betweeen the 2 usb ports in a usb-microusb cable?The black connection provides power and data. The red one is power only. The second cord should be used if the black one does not provide enough power to power and/or charge the device. You will see a lot of external hard drives come with the same type of plug (though usually both are black). Plug the device in using the black cable. If it runs normally and charges (assuming this has a battery), then you are fine. If, however, the device does not operate correctly or does not charge, then you will need to plug the red cord(or second black one if they are both black) into another USB port. You would not cause any harm to the device by plugging in both cables. Honestly, the red one(or second black one if they are both black) would even be plugged into a different computer since it's just power only.6. ps/2 to usb keyboard adapter glitch?The one advantage one or the opposite that i can see is that nothing else uses PS/2, so you can also as good plug your keyboard in there and go away your USB port free for something you have got to join via USB; and that is a very mild advantage, at pleasant. As far as performance or assets, you are not going to look any change7. How to install driver for DVB-T2 USB TUNER EVOLVEO SIGMA T2 on UBUNTU 17.10 (or newer ubuntu rls.)?Your device 0572:c68a is supposed to be covered by the driver dvb-usb-cxusb, however, the exact usb.id is not included yet in the version included in the latest stable Ubuntu version, 17.10 and, therefore, earlier. Let's build a newer driver.Please try this with a working internet connection:It builds with a few possibly harmless warnings for me. The new driver reports:As you can see, your device is included. As a part of the install process, the needed firmware is also installed.Reboot and tell us if there is any improvement. I will have a few more instructions. EDIT: You have compiled the driver for your current kernel version only. When Update Manager installs a later kernel version, also known as linux-image, after the required reboot, recompile:

The Aluminium Door Series order will be processed in sequence based on the order time. You are also welcome to contact us at any time. After you place an order, we will not only make sure the quality assurance of the product, but also need to connect with freight forwarder to guarantee the safe transportation of the goods. "Please rest assured, we are equipped with a complete set of delivery processing system and will deal with your order as soon as possible. Thanks to rich factory experience in producing bedroom door lock, Guangzhou House Empery Co.,Ltd has successfully dominated abroad market. DIGAH produces a number of different product series, including black kitchen cabinets. This product is anti-wrinkle as well as anti-fade. Its bright colors are designed exclusively for not fading with washings. Feel the beauty of home life. When it is used properly, the product can be used by hundreds or even thousands of times, which helps save plenty of money. Feel the beauty of home life.DIGAH actively shapes the current and future markets of wooden wardrobe. Check now!

Guangzhou House Empery Co.,Ltd Steel Door Series is increasingly favored by domestic and foreign customers. The quality of the products are more advantageous than that of the other products on the market. In addition, our customers also enjoy high-quality customer service offered by us. DIGAH has earned a good reputation for designing and manufacturing of custom built kitchen cabinets in China. We have been regarded as a competitive manufacturer. wooden wardrobe series manufactured by DIGAH include multiple types. And the products shown below belong to this type. DIGAH wardrobe closet with shelves is innovatively designed. It is carried out by our professional designers who take note of popular colors, shapes, sizes, and styles. The product brings unbeatable excitement and awesome thrills, which is a great relax for people who are stressful and dysphoric. The wonderful life begins with our team.we will continue to develop black kitchen cabinets strategically. Ask online!

Guangzhou House Empery Co.,Ltd has been known as a brand that offers cost-effective products. We maintain a long-term relationship with raw materials suppliers, which enables us to get quality-guaranteed raw materials at a favorable price. To ensure product quality, we introduce highly-advanced machines and employ experienced designers, R&D staff, and workers to be carefully involved in every step. So, we are not sure that we have the cheapest products in the industry but can provide the most cost-effective products.DIGAH, far ahead other similar enterprises, is popular among the customers. The wooden wardrobe series is one of the main products of DIGAH. In terms of surface finishes, DIGAH wardrobe closet with shelves provide all possible options. The surface treatment is available in a variety of ways. Create a superior elegant home life for you! The product is able to get a big workload done with little energy consumption, which is not only fast but also labor-saving. Create a superior elegant home life for you!By providing the best quality and professional service, our company hopes building more cooperation relationship with every customer. Get an offer!

OBM business is a new business mode which requires more than OEM or ODM. At present, has been working on to be an OBM. A mature and developed OBM should have its own brand and is skilled at R&D, production, design of its own product, which requires a lot on most of the manufacturers. Since founded, we have been striving for completing the sales network and putting a lot of investment into broadening the channels to produce and sell high quality aluminium folding sliding doors with our own brand.Digah has made great achievement the aluminium window industry. provides a wide range of aluminium door for customers. . solid wood doors,solid wood external doors , which is of solid wood external doors feature, fits into the requirements for solid wood external doors . Guangzhou House Empire Construction&Furnishing Co.,Ltd values harmonious production environment. Digah surprises you in each detail!We are committed to attaching the importance of solid wood external doors and solid wood external doors . Get more info!

Chanel Perfection Lumiere, is a clever selection for a extra comprehensive coverage. Clinique Even extra ideal, Continuos coverage or Anti blemish suggestions liquid all of those are very comprehensive coverage only relies upon what reward you desire. YSL teint face up to, yet i've got heard mixed comments. Lancome Teint Idole extremely 24hr, this worked for me nicely. wish those innovations assist you come back to a decision1. Are Sako rifles high end rifles?My son's buddy's dad has a Sako in .308. He shot a prairie dog at 830 yds, measured with a range finder, with his. Sakos are good guns but just not very popular2. can this laptop play high end games like crysis?like the last person said this laptop just isnt going to cut it, if your 'an intense gamer' than you would know the only way to truely game is with a custom built desktop computer fine tuned to your needs3. High-end 6.5" speakers, Rockford Power or Infinity Kappa?Infinity Kappa 6.54. What are some really good high end foundations?dior has some pretty good foundations :)5. Is this a good PC for high-end games?Everythings okay but buy two xfx geforce gtx 495 and sli them by putting them together. You will also be needing a good power supply and a very very good CPU case. Buy my suggested and your mentioned stuff and then you can even run Crysis2 in max.6. Is it hard to find high end clothing at thrift stores?I like to shop at buffalo exchange. I got brand new doc martens for only $40!7. Wondering if this would be a compatable and high end gaming rig.?no problem, except that i feel really jealous of that config, coz its betta than mine... one opinion: you should get a 64bit OS. this is because with a 64bit os, you can take full advantage of the RAM (if you have more than 4GB, which i dont know as u did not mention). Also, some applications such as Crysis Sandbox 2 only officially supports 64 bit os.8. Do you prefer drugstore or high end makeup?Drugstore, its cheap and works great for me9. How do I promote a high end retail store?Media Buying: Find blogs that talk about your vertical in your market and talk to them to create buzz about your store.Interviews in fashion tv shows: Promote the experience that the buyer will get when he goes to the store. Do not promote a business or a store. Promote the experience, the felling, the cach. Find a brand ambassador: Find someone in Singapore who is a recognized fashionist. And associate to make him your brand ambassador. Let him talk to their clients/friends about how great you will be and how much they will like the items that you will sell. Make a fashion show: Make a fashion show with the items that you will sell. This [again] will get brand awareness10. Desktop or laptop for high end gaming?Desktop is the only way to go if you truly are a serious "gamer" ... laptops have a continual problem with overheating especially if you are asking them to perform at their top level for lengthy periods (this is what was causing the Dell laptop batteries to overheat and actually catch fire) ... Ram is another issue ... you will fit more ram and fir it more easily in a desktop if you need to upgrade later . .. and the graphics cards available in a desktop run absolute rings around any laptop11. Which are the best cryptocurrency tokens to buy now and hold them for a minimum of 2 years?Hello,When you say tokens, are you referring to ICO tokens or coins you will be buying from an exchange, Bitcoin for example.If it is ICO tokens then they should gain in value, depending on how many exchanges the ICO company has registered them on and how big are the exchanges.Obviously the more exchanges your token is registered on, the more exposure it will gain, the bigger the exchange, the more exposure it will gain also, as high end investors will be attracted to a token that they were not aware of at the ICO level. If you are referring to actually buying from an exchange such as Coinbase for example, then you should really look at the top 5-7 coins, in my opinion, that is.Maybe buy into 3, monitor them for a while, if you see a weak performer, trade it in and transfer the funds to the performing coins or buy into another coin.I suppose watching the charts and movements will show you an attractive coin to invest in. However, try not to become a chart watching addict, it's easily done, I have been there, done that at the start of my Bitcoin investment journey. :-)Golden rule: "Never invest more than you can afford to lose".I wish you luck, keep a strong hand and do not get sucked into selling out if you see a minor % drop. We saw some pretty drastic % dips in 2017.China only had to sneeze and we were witnessing 15% - 20% dips, however,we always bounced back, usually to a higher position than we were at when the news was released.We ended the year on a high noe.Some say it was manipulated, so what, we enjoyed the massive profits, I took back my initial investment and a chunk of $$$$ vacation money. Nice Christmas break. :-)I hope they manipulate it again, I liked that beach villa we had for a couple of weeks.Thanks guys!!!!Anyway, best of luck to you, all will be good.Cheers

ALL Blu-ray players, which include the PS3, upscale DVDs to 1080p. However, the quality of the result varies. While NONE will upscale and match the sharpness of a Blu-ray version of the same movie (Although technically the result of upscaling is an HD image you can not obtain extra detail by upscaling DVDs), some players (e.g. Oppo BDP-83 do a significantly better job than others (e.g. PS3). It depends on the video processor in the player ... and like in HDTVs, some are better than others. The difference between Blu-ray and well upscaled DVD are subtle at best on a small, lower resolution HD display (e.g. 720p 30" HDTV), but become more pronounced on larger displays (e.g. 1080p 100" projector screen). So ... DVDs are not going to look as good as Blu-ray, but for many types of movies/programs there is some question whether paying a premium for Blu-ray is worth it for the relatively small increase in image quality. Many people feel it is not , and either do not bother with Blu-ray at all, or reserve it for movies they feel deserve the highest possible image quality. That said, image quality is more than just resolution. In fact, resolution is only the 4th most important determinant after dynamic range/contrast, colour accuracy and colour saturation. none of which are (significantly) improved in Blu-ray vs DVD (Blu-ray does use a different "color space", with a somewhat broader gamut of colour). In addition, catalog Blu-ray movies are often produced from remastered HD versions of the original print, which can mean a better image than that on the DVD from an older print. Finally, sound on Blu-ray can also be superior to that on a DVD (although improvement may only be appreciated on a good surround audio system). Bottom line: video and audio quality from a DVD -- even at it's best -- will not be as good as Blu-ray. The degree of difference varies with the movie and the equipment used. Whether it's worth paying extra for the improvement is a personal choice.1. Help me pick a home audio receiver. 5.1, HDMI, not expensive?I am with grumpy, buy a high end receiver from a few years ago. No HDMI, but you can run HDMI straight from blu ray to TV. Get a blu ray with multi channel analog outputs, and connect to receiver's multi channel analog inputs to get the new HD DD and DTS sound. That's what I am doing. I've got an older Yamaha, it was 2k US dollars when it came out. Blu ray and HDMI were just a dream in some dude's head at that time. I could get a new HDMI receiver that will decode DTS HD etc, for 500 bucks, but the parts in that thing wo not touch what I've got. My receiver has the better amp, power supply, bigger caps, better sound and true 100 watts to each channel, not the cheater specs of a 500 receiver. You can tell by the weight, I make a big groaning sound when I have to move it, it's like a slab of lead. I do not feel like dropping 1.5 or 2k on a new HDMI receiver. Now with the new HDMI 1.4 spec out for blu ray 3D forget about it, just more money. I will spend that money on a new flat panel. I helped my friend do the same thing, he built a nice SS system slowly as his wallet allowed. I started him off with a Sony ES receiver from a few years ago that was 1200 new, now 350. I showed him all kinds of good brand speakers used on ebay, we went back and forth on a few brands because there are a lot. Then a deal on Monitor audio showed up, grabbed the front three, rears will come later. he likes my SVS sub (internet only) so he might end up getting one too. So bottom line, it's good to hear that you are going to build it and do it right. You do not have to be rich, just patient if it takes a 6 months or 2 years whatever, it's worth it. Nothing I've purchased, even the used gear has ever failed me. Buy quality, and in most cases you will buy once. If something is outdated or dies you can replace just that one thing or in some cases work around it somehow. People that have those all in one systems when DVD was the only game in town are now not so happy since most can not integrate their new blu ray into the surround sound. Anyway check out the older high end Yamaha, Onkyo, Sony ES, I came really close to getting a used NAD receiver, but the deal on my Yamaha popped up and I grabbed it. Just make sure it has the multi-channel analog inputs. To mate to a blu ray player with matching outputs. If you go the HDMI way, you can get a nice receiver, but you are limited a bit since HDMI receivers have not been around a super long time2. What Will Be Next Step After Blu Ray?My suggestion is demo one and decide for yourself. Many people rave about Blu-ray and HD DVD, but personally I do not think they are worth the (current) high price premium. I have an HD DVD player and on my 110" screen and 720p projector the difference from upscaled DVD is barely noticeable. And video quality on Blu-ray and HD DVD is essentially identical, so it's not that HD DVD is not as good as Blu-ray. I suggest going to a store where they can connect a HD player to a TV as similar to yours as possible (at least same size and resolution). View a DVD and a HD disk (it's easiest with an HD DVD combo disks since they have HD on one side and normal DVD of the same movie on the other side) at the same distance as you will sit from the TV at home. If you decide the benefits are worthwhile, as to choosing HD DVD or Blu-ray I could give you all sorts of reasons why HD DVD is the more consumer friendly format, but the bottom line is most movies are only available on Blu-ray, so unless you want primarily a good upconverting DVD player that also plays HD DVDs ( in which case the HD-A3 is a great deal at about $120 with free HD DVD disks) you probably should buy Blu-ray. That said, Blu-ray is not ready for real time yet since there are still changes in hardware and software being implemented. It would be best to wait a few months at least before buying. And prices will likely be lower too. Hope this helps.3. Is it worth it to buy old blu ray movies?I've heard that the Blu-ray is amazing on all movies it's on, but I do not own one, so I am not a very reputable source. I would just rent some of the older movies on blu-ray. Judge for yourself whether they are better quality before you decide to buy.

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