Can 002537 participate in central digital currency
since the great development of domestic online payment, the central bank has been promoting the research and development of data currency, recing the issue of paper currency and issuing it in the form of electronic currency
in view of the nature of currency, sovereign countries all over the world are the same, and other entities are not allowed to issue legal currency. So we saw fcaebook issue Libra virtual currency based on blockchain, and the US government also expressed concern. Zuckerberg attended questions in Congress many times
electronization is indeed a trend, but all countries can only allow the central bank to take the lead. After the digital currency photo of ABC test appeared in the market yesterday, the stock market also had some waves. The central bank's enthusiasm for digital currency has always been strong, so the development of e-currency and subsequent real issuance should be ahead of other countries
of course, the enthusiasm of the central bank is also based on the situation that the domestic electronic payment is leading the world, and the payment habit of Chinese people has been formed. In the future, it will be another scene if it is expanded under the appropriate scene. The digital currency of the central bank is the replacement of paper money
its functions and properties are exactly the same as paper money, but its form is digital. We define it as "digital payment instrument with value characteristics"
the application scenario of digital currency is like this: as long as two people have DCEP digital wallets on their mobile phones, there is no need to connect to the network. As long as the mobile phone is a little bit, when two mobile phones touch each other, the digital currency in one person's digital wallet can be transferred to another person, that is, there is no need to bind any bank account, Unlike now, WeChat and Alipay need to bind a bank card, but DCEP doesn't need it.
this means that DCEP can circulate like paper money. But how is it different from bitcoin and other digital currencies?
the central bank's digital currency belongs to legal currency. Like cash, the central bank's digital currency has unlimited legal compensation, that is to say, you can't refuse to accept DCEP, which is backed by the central bank and the whole national system
now many private Payment institutions or platforms will set up various payment barriers, such as WeChat's money can not be transferred to Alipay, Alipay's money can not be transferred to WeChat, but for the central bank's digital currency, as long as the use of electronic payment places, it must accept the central bank's digital currency.
so how do indivials need to invest in DCEP?
at present, DCEP is probably equal to RMB, so the appreciation space can not be said to be small. Its value is equivalent to RMB, and it is equivalent to people who speculate in foreign exchange can participate in its investment, and it will certainly not float as much as other blockchain virtual currencies, which will certainly disrupt the financial system of the whole country, Since the state can guarantee the stability of RMB exchange rate, it is believed that the stability of legal currency can also be guaranteed
at present, all countries and institutions have plans to launch their own digital currency. The most famous one is lbra launched by Facebook. For the launch of digital currency, we also cross the river by feeling the stone. Any financial innovation has its deep meaning, which is promoting the reform of the whole society.
Ant technology is almost zero cost financing, through various forms of packaging debt, repeated borrowing, and then irresponsibly lend money to young people who have no ability to repay. This is basically bringing the crazy financial crisis of Wall Street in 2008 to China. The real capital market is changeable and more cruel than you think
ant technology's blood sucking through online loans has been picked out by many people. Zhou Xiaochuan, former governor of the Central Bank of China, also said at the Boao Forum of Asia recently that Internet technology giants controlled a large amount of data and market share, formed a monopoly and hindered fair competition, which led to the decline of Alibaba's share price
if Google can freely use users' personal information in financial business, it can also become the largest lending institution in the world. Google doesn't do it because American businessmen are particularly kind, but American policies don't allow it at all
as vice minister of Finance Zhou Jiayi said at the Bund financial conference, science and technology has not changed the nature of relying on credit to use leverage, supported the development of financial technology, insisted on the improvement of science and technology, prevented financial technology from incing excessive financial consumption, and encouraged the winner take all monopoly
now that the digital currency DCEP of "central dad" is on the way, can ma Yun's wishful thinking work well in the future? Let's wait and see< br />
To calculate the helical gear parameters, you need to know the basic parameters:
normal molus M_ n. Number of teeth Z, normal pressure angle α_ n. Helix angle β
generally, the crown height coefficient h * is 1, and the root height coefficient C * is 0.25. If there is displacement, it is necessary to calculate the displacement: x
the following is the basic parameter
end face molus: M_ t=m_ n/cos β
Calculation formula of pressure angle at the end face: Tan α_ t)=tan ( α_ t)/cos( β)diameter of dividing circle: D = m_ n × z/cos( β)
addenm circle diameter: no displacement: Da = D + 2 × m_ n × H * with displacement: Da = D + 2 × m_ n × H * + x)
root circle diameter: no displacement: DF = D-2 × m_ n ×( H * + C *) with displacement: DF = D-2 × m_ n ×( H * + C * - x)
diameter of base circle: DB = D × cos α_ t)
in addition, there are more important dimensions, such as normal pitch, end pitch, etc., which can be obtained by referring to relevant manuals
Extended data:
judgment of helix rotation direction: first, we make the gear axis vertical, if the right height of helix is right rotation; On the contrary, the height on the left side of the helix is left-handed
end face and normal surface parameters:
end face: the plane perpendicular to the gear axis, and the parameters on the end face are generally added with subscript t
normal plane: the plane perpendicular to the helix, and the parameters on the normal plane are generally subscript n
(1) pitch and molus: = t= π
(2) pressure angle: generally, the parameters in normal plane are standard parameters
The correct meshing condition: the helix angle must be equal in size and opposite in direction. The normal molus m is equal to the normal pressure angleB. geometric dimension calculation: in calculation, the calculation formula of spur gear can be directly applied to the end face of helical gear because a pair of helical gear transmission is equivalent to a pair of spur gear transmission on the end plane
there are many kinds of gear transmission, among which the efficiency of helical gear is very high, for example, the efficiency of spur gear transmission is lower than that of helical gear transmission
Like spur gear mechanism, helical gear can be used to improve the load capacity of transmission by recing the center distance a, which can be used for high-speed operation. Helical gear recer is a new type of recer. The helical gear recer is small in volume, light in weight and good in economy Advantages:(1) good meshing performance: the meshing process between helical cylindrical gears is an excessive process, and the force on the teeth is graally from small to large, and then from large to small; Helical gear is suitable for high speed and heavy load
(2) large coincidence degree: the increase of coincidence degree can improve the bearing capacity of gear. So the life of the gear is prolonged. The coincidence degree mainly depends on the meshing time, while the long meshing time and large contact area of helical gear rece the stress. The transmission is stable and the economy is increased
(3) compact structure: the less the minimum number of teeth, the more compact the structureLet's talk about professional red brother. The game of funds also needs a tuyere. Of course, the biggest tuyere in our market comes from policy. The earning rate of stocks is probably that there is a tuyere and the price is low
digital currency is an alternative currency in the form of electronic currency, which has become legal tender, such as bitcoin, Leyte coin, bitstock, etc. Our digital currency started its pilot at the beginning of the year, and in the future, it will play a part in the function of current circulating currency, so that some related listed companies will benefit.
last week, the concept of digital currency rose collectively. In fact, following red brother, we know that the market is in a downturn after the Spring Festival. In fact, red brother has repeatedly hinted that when they are in a downturn, Can bargain layout. This plate is also a lot of analysis
of course, if you cheat, you will not be involved in the enforcement of the law.