Is POC power bucket reliable

1.

POW: full name of proof of work

pos: proof of stake

both of them are the consensus mechanism of blockchain and the bookkeeping method of digital currency

the difference is:

1. POW mechanism: workload proof mechanism, that is, the proof of workload, is the requirement that must be met when generating a new transaction information (that is, a new block) to be added to the blockchain. In the blockchain network based on workload proof mechanism, the ability of nodes to obtain the correct numerical solution to generate blocks by calculating the numerical solution of random hash hash is the specific performance of node computing power

POS mechanism: the proof of rights and interests requires the certifier to provide a certain amount of ownership of cryptocurrency. The operation mode of the proof of rights and interests mechanism is that when creating a new block, the miners need to create a "currency right" transaction, and the transaction will send some coins to the miners themselves according to the preset proportion. According to the proportion and time of token owned by each node, the equity proof mechanism reces the mining difficulty of nodes proportionally according to the algorithm, so as to speed up the speed of searching for random numbers

extended materials:

the concept of bitcoin was first proposed by Nakamoto in 2009. According to Nakamoto's ideas, the open source software and the P2P network on it were designed and released. Bitcoin is a kind of P2P digital currency. Point to point transmission means a decentralized payment system

unlike most 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 the distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses the design of cryptography 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

2. Appdownload cactus POC online 6 exchanges share trading depth I communication · personal column 2019 / 05 / 09 14:33 4175 attention as of May 2019, cactus POC online 6 exchanges in total, open POC / eth trading pairs at the same time, at the same time log in non small ranking list, the exchanges will share POC trading depth, matching, online that has the whole platform market, K line and other data. As the ecological token of digital asset trading platform, pngpoc has great value support, including investor protection fund, project online voting, transaction fee payment, incentive mechanism, platform service purchase and business ecological alliance. The six exchanges of POC online are: chainease ce.cool, zt.com, fubt, Lein exchange, bione and Yuanjun exchange. In the future, more exchanges will be online to share trading depth. At present, the daily trading volume of each exchange has reached 380 million pieces / day. 190509140844702765652. PNG trading depth "is also known as" market depth ", which refers to the number of orders whose price can be driven to a certain extent by a token. It represents whether the platform can guarantee the price stability when bearing large transactions, and reflects the liquidity and maturity of the market. POC has settled in six exchange platforms, and shares depth and liquidity, which will achieve a win-win situation. POC / eth trading depth and liquidity are shared among the seven exchanges. For the exchanges, POC is the value link. By sharing trading depth and liquidity, users can be more efficient, a large number of users can be quickly accumulated, and more revenue and value can be created; For POC, by sharing transaction depth and liquidity, POC can get more traffic and circulation scenarios; For users, it can rece the transaction risk caused by the sharp rise and fall of the price. At the same time, the market price is relatively more stable and the transaction cost is lower when the large amount of transaction, so they can enjoy the smooth and timely transaction experience of any amount. 190509140844216899.jpeg in the future, with the value support of many application scenarios, the operation of professional teams, the guarantee of mature technology, and the absolute advantage of many professional exchanges sharing trading depth and liquidity, POC is bound to have more value and competitiveness in the project of blooming flowers. 190509140845191542036.png statement: This article is written by the author of golden finance. The opinions only represent the author himself, and never represent that golden finance agrees with his opinions or confirms his description. The author of this article: I spread to share + collect + pay attention to more information more activities more Disclaimer: as an open information sharing platform, golden finance only represents the author's personal views, has nothing to do with the position of golden finance platform, and does not constitute any investment finance suggestions. Risk tips for downloading appdownloadapp on PC desktop site to prevent the risk of illegal fund-raising in the name of "virtual currency" and "blockchain"

3.

POC is the abbreviation of proof of concept, which means to provide evidence for opinions. It is a set of suggested electronic models, which can be used to demonstrate the design of teams and customers, and allow to evaluate and confirm the conceptual design scheme. The evaluation of POC may cause the adjustment of specifications and design

function:

the commitment of design and the opinions recognized by all will be recorded in the design adjustment document for future reference. In this way, POC continues to develop. If you need help completing these tasks, you can find assistance resources at Queensland University

extended data:

evaluation and verification of POC

the process of evaluation and verification is to seek feedback from risk takers through POC and filing design documents. Through POC evaluation, risk takers may put forward requirements for adjusting specifications and design

sometimes, e to design defects or inappropriate places, the design team may have to go back to the drawing board. Customers may decide to stop designing or look for other teams because the design does not pay enough attention to the needs of customers and users, or because of the instability of customer needs

sometimes the change is caused by the customer organization or project decision-maker. Generally, at the end of the evaluation and verification process, the design commitment and the opinions accepted by all will be recorded in the design documents

this is often an important milestone in the life cycle of proct development. After the evaluation and verification, POC can continue to develop

4. Let me tell you this: POW has almost all the advantages and POCS have none of the disadvantages. Bitcoin's pow consensus mechanism has obvious shortcomings: energy waste, noise, mining centralization. The cost of bitcoin mining is getting higher and higher, and the computing power is concentrated in several large mines, so it is difficult for ordinary users to participate; HDFS adopts POC mechanism for hard disk mining, so that everyone can mine.

5. m=pv1t
由v^2=2gh v=8.12m/s
由动量定理得
N-mg=mv/t=pv1*v
N=mg+pv1*v=8.32+17.2=25.4N

6. The only way for a miner on Odin chain to obtain POC power is to destroy the original coin, which requires the miner to purchase or obtain Odin by other means. At the same time, miners need to destroy the Odin coin on the Odin public chain when they participate in mining. After destruction, POC rights will be generated from the wallet address, and the Odin obtained from mining will be allocated to the main chain wallet through POC rights proof. The POC conversion of Odin is that one unit of POC is equal to 6.4 Odin tokens.

7. Science and technology change life, but also to promote the driving force of economic development. In recent years, the wave of mobile Internet and big data technology is higher than one wave, rapidly leading the development trend of the new era. In 2017, when new things and new technologies continue to emerge, the emergence of blockchain undoubtedly set off a new revolution in digital economy. Chongqing jinwowo network technology group, in line with the current national policy of the development of big data instry, deeply explores the research and development of blockchain technology, explores the application of blockchain technology, and is committed to developing into a well-known brand in the field of blockchain in China, leading the new ideas of blockchain development.

8.

POC particle oxidation catalyst (POC) = particle oxidation catalyst

different from gasoline vehicles, only a few new diesel vehicles adopt exhaust after treatment technology. Automobile diesel engine manufacturers have been improving the engine and its control system to meet the emission standards

The most difficult part is to rece the emission of particulates and nitrogen oxides at the same time in the low temperature lean burn environment

the best effect can be achieved by using diesel lean burn NOx removal catalyst and diesel particulate filter

although this technology already exists, it is very expensive. In most cases, advanced particulate oxidation catalyst POC is used, which is characterized by particulate combustion

The catalyst consists of a new low temperature coating and a metal carrier called Ecocat. At the same time, the conversion of HC and CO can reach 80% - 90%

has been tested on several light and heavy engines and vehicles driven by this type of engine (engines up to Euro 0 to Euro 4 standards). The biggest advantage of this scheme is that the price is relatively cheap and maintenance is not necessary. But the sulfur content in diesel oil should be low

POC is a catalytic oxidizer for particulate matter. The working principle is to catch up the particulate matter, and then burn it through the high temperature of exhaust gas (250 ℃ - 500 ℃), so as to achieve the purpose of recing the particulate matter. POC is widely used in light truck. In addition, POC can regenerate actively and DPF needs human intervention

< H2 > extended data

particulate oxidation catalytic converter (POC) can be used to rece particulate matter in diesel exhaust, which belongs to the category of oxidation catalytic converter. The conversion efficiency of particulate matter is higher than doc, but lower than DPF system. The principle is to make the exhaust gas pass through a multi fold channel without blocking, and the particles are adsorbed in the POC, and the accumulated particles are removed by oxidation combustion

because POC requires a higher working temperature, it needs to be used in combination with DOC, which is called PM Kat system by European heavy truck enterprise man, that is, DOC and POC are integrated. Under the oxidation of DOC catalyst, no in the exhaust gas combines with oxygen to form nitrogen dioxide, and the original NO2 in the exhaust gas enters the POC together. Under the action of the catalyst, the molecular bond of N O2 breaks at a lower temperature, and the generated o burns with the captured C particles to form C O2, thus effectively removing the captured particles

POC can only filter the larger carbon particles, but the ability to capture the carbon particles below PM2.5 is low, and the efficiency of recing PM is 30% - 80%, which is better than doc and lower than DPF. The price of POC is lower than that of DPF and higher than that of doc

9. Lava, as a leader in the POC field, is committed to condensing the global hard disk storage resources, building the underlying framework for it, and building the global "root of trust" based on the original intention of promoting the virtuous cycle of energy and blockchain instry, the basic principle of promoting instrial development by hydropower, and the basic principle of promoting hydropower consumption by instry. Through the consideration and optimization of POC consensus mechanism, lava not only has the advantages of POC everyone mining, computing power sharing, green energy saving, but also covers the existing stacking mechanism, which makes the whole ecology more transparent and improves the community participation.