Digital currency insurance chain
Publish: 2021-05-19 02:29:23
1. The above formula is not perfect, because the direction of wind speed is not necessarily perpendicular to the action surface θ
F= ρ S(v*sin θ)^ 2
the formula is deced as follows:
consider the case that the wind speed is perpendicular to the action surface first
take the cross section of the wind as s and the length as S Δ x( Δ x-> 0), and the velocity before the wind contacts the action surface is v Δ x=v Δ T
the mass of the air column is Δ m= ρ S Δ x= ρ Sv Δ T
because the mass of the air column is very small, when it collides with the action surface, it will move along the action surface, that is, its velocity perpendicular to the action surface is 0 Δ t=0-(- Δ MV)
i.e. F Δ t= ρ Sv Δ t*v
F= ρ When the wind speed is not perpendicular to the action surface, the velocity is divided into the direction of the vertical action surface and the direction parallel to the action surface. Since the component parallel to the action surface will not generate force with the action surface, the final wind force is only the component perpendicular to the action surface, which is v * sin θ, Substituting this formula into (*) to get
F= ρ S(v*sin θ)^ two
F= ρ S(v*sin θ)^ 2
the formula is deced as follows:
consider the case that the wind speed is perpendicular to the action surface first
take the cross section of the wind as s and the length as S Δ x( Δ x-> 0), and the velocity before the wind contacts the action surface is v Δ x=v Δ T
the mass of the air column is Δ m= ρ S Δ x= ρ Sv Δ T
because the mass of the air column is very small, when it collides with the action surface, it will move along the action surface, that is, its velocity perpendicular to the action surface is 0 Δ t=0-(- Δ MV)
i.e. F Δ t= ρ Sv Δ t*v
F= ρ When the wind speed is not perpendicular to the action surface, the velocity is divided into the direction of the vertical action surface and the direction parallel to the action surface. Since the component parallel to the action surface will not generate force with the action surface, the final wind force is only the component perpendicular to the action surface, which is v * sin θ, Substituting this formula into (*) to get
F= ρ S(v*sin θ)^ two
2. The concept of bitcoin was first proposed by Nakamoto on November 1, 2008, and was officially born on January 3, 2009. According to the idea of Nakamoto, the open source software is designed and released, and the P2P network on it is constructed. Bitcoin is a virtual encrypted digital currency in the form of P2P. Point to point transmission means a decentralized payment system
unlike all currencies, bitcoin does not rely on specific currency institutions. It is generated by a large number of calculations based on specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses cryptography design to ensure the security of all aspects of currency circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity
response time: February 5, 2021. Please refer to the official website of Ping An Bank for the latest business changes
[Ping An Bank I know] want to know more? Come and see "Ping An Bank I know" ~
https://b.pingan.com.cn/paim/iknow/index.html
unlike all currencies, bitcoin does not rely on specific currency institutions. It is generated by a large number of calculations based on specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses cryptography design to ensure the security of all aspects of currency circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity
response time: February 5, 2021. Please refer to the official website of Ping An Bank for the latest business changes
[Ping An Bank I know] want to know more? Come and see "Ping An Bank I know" ~
https://b.pingan.com.cn/paim/iknow/index.html
3. Generally, the switch port is in access mode by default. The port in Accsee mode can only pass through one VLAN, that is, the VLAN where the port is located. The port in
trunk mode can pass through multiple VLANs
for example, some switches of H3C are set as follows:
port link type trunk
port trunk permit VLAN all
correspondingly, the port of another switch connected to this port should also be set to trunk mode; Which VLAN do you want to pass through? This VLAN must be in the device
when it is set to trunk, you can write the command port trunk allow pass VLAN all, but if you write it when you cancel it, you will get into trouble, because VLAN 1 will also be cancelled. So there's this repeated order& lt;/ ol>
trunk mode can pass through multiple VLANs
for example, some switches of H3C are set as follows:
port link type trunk
port trunk permit VLAN all
correspondingly, the port of another switch connected to this port should also be set to trunk mode; Which VLAN do you want to pass through? This VLAN must be in the device
when it is set to trunk, you can write the command port trunk allow pass VLAN all, but if you write it when you cancel it, you will get into trouble, because VLAN 1 will also be cancelled. So there's this repeated order& lt;/ ol>
4. If you want to choose a valuable digital currency, you'd better understand and evaluate the landing opportunities of the project. For example, the previously hyped dog currency and soft model currency are only conceptual currencies. Only procts that can land have the potential to appreciate
the relationship between digital currency and blockchain is very close. The first application using blockchain technology is bitcoin. Now other currencies in the market basically use blockchain technology to solve problems that other instries can't solve
I'm more optimistic about the SEC social e-commerce chain. Now the price is relatively low and there is a great opportunity to land. After the SEC is landed, the currency price will certainly rise. Please refer to the route of EOS
the relationship between digital currency and blockchain is very close. The first application using blockchain technology is bitcoin. Now other currencies in the market basically use blockchain technology to solve problems that other instries can't solve
I'm more optimistic about the SEC social e-commerce chain. Now the price is relatively low and there is a great opportunity to land. After the SEC is landed, the currency price will certainly rise. Please refer to the route of EOS
5. It is said that bitcoin has increased from a few cents to about $20000. I feel that I have missed another chance to be the richest man in the world. According to the headline, the top five digital currencies are bitcoin, Ethereum, reborn, Leyte and mede.
6. More than two months,
7. Sunshine insurance does not participate in digital currency, and there is no relationship between sunshine insurance and digital currency. However, sunshine insurance has participated in the development of blockchain technology and has a special preference for blockchain. 2016 is the year of blockchain, and blockchain has become a big wind. Blockchain has overshadowed bitcoin
Ruitai coin, vitality coin and other application-oriented digital currencies are also mostly under the banner of blockchain.
Ruitai coin, vitality coin and other application-oriented digital currencies are also mostly under the banner of blockchain.
8. It's the main chain currency
9. What to do is not to listen to what others say. What can he tell you about things that others have never done? Now Internet plus era, like Internet, Taobao, Tencent, you want to join SMI, and now you are a billionaire, so success is not relying on others, but by reason of yourself, and destiny is in your own hands, not in others' mouth,
I have been doing projects for more than 10 years, experienced, first-hand information, risk is 0, leading thousands of teams, understanding V, my head number.
I have been doing projects for more than 10 years, experienced, first-hand information, risk is 0, leading thousands of teams, understanding V, my head number.
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