Is Yuhong blockchain a man or a woman
blockchain is a decentralized distributed ledger database . The advantage of this distributed ledger is that buyers and sellers can trade directly without any intermediary. Everyone has a backup, even if you lose this, it will not be affected
{rrrrrrr}
extended data:
blockchain application field
1, financial field
blockchain has potential huge application value in international exchange, letter of credit, equity registration, stock exchange and other financial fields. The application of blockchain technology in the financial instry can save the third-party intermediary link and realize the point-to-point direct docking, so as to greatly rece the cost and quickly complete the transaction payment
2. The Internet of things and logistics
blockchain can also be naturally combined in the field of Internet of things and logistics. Through blockchain, we can rece logistics costs, trace the proction and delivery process of goods, and improve the efficiency of supply chain management. This field is considered as a promising application direction of blockchain
3. The data stored on the public welfare field
blockchain is highly reliable and tamperable, which is naturally suitable for social public welfare scenarios. The relevant information in the public welfare process, such as donation project, collection details, fund flow, recipient feedback, etc., can be stored on the blockchain, and can be made transparent and public, which is convenient for social supervision
4. In the field of insurance
in terms of insurance claims, insurance institutions are responsible for fund collection, investment and claims settlement, and often have higher management and operation costs. Through the application of smart contract, there is no need for the applicant to apply or the insurance company to approve. As long as the claim conditions are triggered, the automatic claim settlement of the policy can be realized
It is calculated according to the length of the reinforcement cage of the pile and the length of the reinforcement material. For example, the length of pile is 45m, the length of reinforcement cage is 42m, the length of reinforcement raw material on site is 9m, then 9m × 4 = 36m + 6m = 42m, that is to say, a full-length main reinforcement on the reinforcement cage should use 4 raw materials and a 6m, a total of 5, that is to say, there should be at least 4 joints
There are several construction methods for bored piles e to different drilling machines:(1) screw drilling machine drilling method
(2) drilling method with submersible drilling rig (3) hole forming by percussive drilling machine (4) positive circulation rotation method (5) reverse circulation method (6) punching and grabbing drilling method (7) rotary cone drilling method (8) simple soil drilling method 
extended data
welding method of steel bar:
1. Flash butt welding: two sections of welded steel bar are contacted by butt welding machine, and after the steel bar is heated to a certain temperature and softened by low voltage and strong current, axial pressing and upsetting are used to form butt welding joint, and the steel bar is connected along the axial direction. According to the butt welding process, flash butt welding is divided into continuous flash welding and flash preheating flash welding, the latter is used for welding large diameter steel bars. Prestressed steel bars are welded in this way
Arc welding: high temperature arc is proced between welding rod and weldment by arc welding machine, which makes welding rod and weldment within arc burning range melt, and then joint or weld is formed after solidification. The joint types of steel bar arc welding are: lap joint (single side weld or double side weld), bar joint (single side weld or double side weld) and section joint (flat or vertical weld)3. Electroslag pressure welding: put a small piece of conctive agent (steel wire ball, welding rod, etc.) between the upper and lower steel bars to be welded, load the cartridge and fill the flux, connect the circuit with an AC welding machine to start arc combustion, after forming slag pool, steel bar melting and arc stabilization for a certain period of time, at the same time of power failure, use the manual pressure mechanism to press and forge to eliminate slag inclusion and bubbles and form joint. This kind of welding is mostly used to lengthen the vertical reinforcement in the cast-in-place reinforced concrete structural members
Resistance spot welding: the upper and lower electrodes of the spot welding machine contact the crossed reinforcement and connect the current. The resistance of the contact point of the crossed reinforcement is large, the heat generated by the current will melt the reinforcement, and the electrode will be pressurized to weld the reinforcement. It is used for the cross connection of welded steel mesh, steel skeleton, etcfirst, the general situation of welding types.
to become an excellent welder, I think that in addition to hard training, I also need to have some talent. The welders I have met are not afraid of hard work, but few are excellent
welding is a very hard job, especially in hot weather, because the protective clothing is very hot, and some welding parts have to be heated to more than 100 degrees before welding, and then scalding and burns are common. The biggest problem is the harm of harmful gases and st to the body< First of all, you should read a book about the basic aspects of welding. You can have a basic concept of welding equipment, welding materials, current and voltage, electrodes, wiring methods, etc. The other is to read books on welding safety. It's very important to read books on safety, because only in this way can you know what kind of environment you can't weld? What kind of workpiece can't be welded? Especially the use of gas cutting. It's very important. The personal safety of Bijing is the first. Many welders are killed in accidents ring operation
2. After learning the theory, start the practical operation under the guidance of the master. To learn electric welding well, handle welding is the foundation. All the methods of transporting the strip, observing the shape of the molten pool, and adjusting the current and voltage all start here
3. After learning the basic practical skills, the best thing is to practice more with the theoretical knowledge in the book. In the actual work, more practice is a skill, that is, you can't stay in a factory, because you stay in a factory, the proct is single, the welding type is few, you will always only have those two kinds. You feel that you have nothing to learn, so you have to go to another place. You are well-informed. If you read a book while doing practical operation, welding different welding materials, etc., plus someone's advice, you will have a little success in about two years, but you will not be an expert
finally, I would like to remind you that in the process of learning while welding, don't forget to take the welder certificate examination. From junior to senior to technician, take your time. This is very important for your future career development. Otherwise, no matter how high your level is, if you change to a unit that doesn't recognize you, they won't want you at all
good luck
Aoyou browser is a multi-function, personalized and multi label browser. It can effectively rece the browser's occupancy of system resources,
improve the efficiency of Internet surfing. The classic Aoyou browser 2. X,
has rich and practical function settings. Support a variety of plug-in tools and plug-ins. Aoyou 3. X adopts the open source WebKit core, which has the advantages of fitting the Internet standard, fast rendering speed, strong stability and so on. It also has a high degree of support for the latest HTML5 standard, so it can realize more rich network applications
simultaneous browser is a multi-functional, personalized and multi page browser based on IE kernel. It allows to open any number of pages in the same window,
reces the browser's occupancy of system resources,
improves the efficiency of online surfing.
at the same time, it can effectively prevent malicious plug-ins,
prevent all kinds of pop-up,
floating ads, and strengthen the security of online browsing. Maxthon
browser
supports various plug-in tools and IE
plug-ins,
enables you to make full use of all online resources in Maxthon
browser
and
enjoy surfing the Internet
first, the function application of roaming browser
multi tag browsing, mouse gesture, intelligent acceleration, intelligent form filling, revocation list, screen capture, Aoyou download, online collection service and other efficient functions< Second, security function, privacy protection
security update: comprehensively prevent all kinds of unrepaired security vulnerabilities. Such as an iron wall in general, comprehensive prevention of malicious code intrusion
Clear History: in the webpage toolbar, users can freely select the items to be cleared, or they can set to automatically clear these data when Aoyou is closed.
trusted site check: when visiting trusted sites, the background of the address bar is switched to green, and the trusted icon is displayed. To ensure the security of users' online transactions
Third, free function
plug ins: users can extend the function of Aoyou browser as much as possible through various plug-ins. If interested, users can also make their own plug-ins to share with users around the world
skin: different skin makes the interface present different styles, beautifies the browser, and represents the user's personality. Users can also make their own skin to share with users around the world
filter pack: by installing the filter pack, Users can easily filter the ads of the corresponding website or realize many unexpected functions. The filter package makes use of the powerful text filtering function of Aoyou browser. If you are interested, you may as well make one yourself
multi language support: Aoyou browser has 19 kinds of interface language packages, including Chinese, English, Russian, French, Korean and Japanese, which are enthusiastically translated by users. You can easily switch between different languages through the menu.
Fourth, roam browser is insufficient.
Aoyou browser has more functions than other browsers. It can open so many things in its window, such as my computer, Notepad, and so on. You will feel the advantages of it when you use it slowly, but it has a disadvantage that it consumes more memory than other browsers