Blockchain housing rental market capacity

1.

in 2019, the market scale of China's blockchain instry will reach 1.2 billion yuan

in 2016, the market scale of China's blockchain instry will be about 100 million yuan, and it will grow to 1 billion yuan by 2018.
in 2019, the scale of China's blockchain instry will grow steadily, with an instrial scale of about 1.2 billion yuan. With the attention and attention of local governments, it is estimated that by 2022, the market scale of China's blockchain core procts and solutions and related derivative instries will reach 10 billion yuan

from the research results, in terms of consensus mechanism, China's consensus mechanism graally moves from single algorithm to mixed consensus; In terms of cryptographic algorithms, cryptographic algorithms such as secure multiparty computation, homomorphic encryption and zero knowledge proof are continuously integrated and applied; The research of cross chain technology and security technology has graally become a research hotspot

from the perspective of blockchain hardware, at present, the world's most important digital currency mining equipment suppliers are all located in China, and only bitmainland, Jianan Yun and Yibang technology occupy more than 90% of the market share

from the perspective of instry application, the financial instry is the instry with the largest number of blockchain technology implementation projects and the richest scenarios, such as supply chain finance, asset certificate aromatization, credit reference and risk control

in 2020, the blockchain instry will be further standardized

in 2020, China's blockchain policy will continue to be favorable, the standard specifications will be more perfect, the instrial scale will continue to grow, the technology will continue to innovate and develop, and the application demonstration effect in key fields will accelerate. At the same time, according to the problems existing in the development of China's blockchain in 2019, CCID blockchain Research Institute puts forward six suggestions: accelerating the formulation of top-level design, establishing and improving the regulatory system, accelerating the innovation and development of core technologies, promoting the third-party evaluation and certification, strengthening the cultivation of professional talents, and accelerating the implementation of applications in various fields

- the above data comes from the analysis report of China's blockchain instry market outlook and investment strategic planning of foresight Instry Research Institute

2.

From the current mainstream blockchain projects, blockchain projects are mainly divided into four categories: the first category: currency; The second is platform; The third category: application category; The fourth type: asset token

currencies mainly act as the "exchange media" in the field of blockchain assets, and the exchange media refer to general equivalents, such as gold and silver bills in the past< (currency exchange on trading blockchain assets)

platform projects refer to the establishment of technical platforms to meet the needs of various blockchain application development, which can rece the threshold of application development on blockchain

application projects cover a wide range of fields, including finance, social networking, games, property rights protection, etc., and are also the fastest growing fields of blockchain assets

asset token project refers to the blockchain mapping of physical assets, that is, the physical assets on the chain. At present, there are no more than 10 varieties

01 currency

the first category is currency project, which is also the earliest blockchain project. Currency projects mainly include bitcoin and lightcoin. In addition, there is another kind of asset with the characteristics of anonymity. Its main functions include protecting the privacy of both sides of payment while realizing payment. The well-known ones are dash, monero and zcash. Currency is mainly used as the "exchange medium" in the field of blockchain assets. The exchange medium is the general equivalent you use to exchange goods. For example, gold, silver and silver bills can be used as the exchange medium in the past. At present, there are more than 2100 types of digital assets in the world, and the number of currency blockchain projects has increased rapidly recently. As of June 2018, bitcoin is still the largest market value

02 platform type

the second type is platform type blockchain project. The main function of platform type blockchain project is to establish a technical platform to meet the technical requirements of various blockchain application development; In short, platform applications allow developers to directly issue digital assets and write smart contracts on the blockchain. Smart contract is a computer program running on the blockchain database, which can be automatically executed under the conditions of its source code setting

for example, you develop a smart contract based on the house rent protocol on the blockchain. When the owner receives the rent, it will trigger the automatic execution and give the security key of the apartment to the tenant

the main function of platform blockchain projects is to establish the underlying technology platform, so that developers can do application development on the underlying technology platform. A considerable number of platforms are still in the development state. As of June 2018, Ethereum has the largest market value

03 application

the third category is application blockchain projects. Application projects are blockchain projects based on blockchain development platform (such as Ethereum), which can solve many problems in various fields of the real economy

for example, augur, Golem, vechain, omisego, which provides asset exchange and transfer services. Using blockchain technology, these projects can better solve the problems of trust and cross-border circulation. At the same time, using smart contracts and tokens on the blockchain, they can better realize automatic execution and greatly improve the efficiency of social and economic activities. Application blockchain projects cover a wide range of fields, including finance, social networking, games, property rights protection and so on. It is also the field with the fastest market value increment of blockchain projects at present

04 asset token

the fourth category is the asset token blockchain project. Asset token refers to linking the blockchain assets to physical assets such as gold and US dollars, which is the blockchain mapping of physical assets. As of February 2018, there are no more than 10 varieties. The typical representatives are usdt against US dollars, digix Dao against gold, Digix each token represents 1 gram of Gold Certified by the London Bullion Market Association. Asset token has the advantages of convenient transaction and safekeeping. First of all, asset token is more convenient for transaction. Because blockchain assets can be split, it has better liquidity

for example, at present, real estate needs to be transferred as a whole. If the real estate can be token, it can be split and purchased, which is more convenient for transaction. Secondly, the token of physical assets is more concive to custody. Gold is easy to wear out and cause losses in physical transactions, but there is no need for physical transfer after the token of physical assets, which is more concive to the custody of physical assets

3.

definition of blockchain

according to the definition in the white paper on blockchain (2019) issued by China Academy of information technology, blockchain is an accounting technology that is jointly maintained by multiple parties, uses cryptography to ensure the security of transmission and access, and can realize consistent data storage, difficult to usurp and prevent repudiation; In the people's Bank of China's "financial distributed ledger technology security specification", it is defined that distributed ledger technology is a distributed infrastructure and computing paradigm formed by the high integration of cryptographic algorithm, consensus mechanism, point-to-point communication protocol, distributed storage and other core technology systems

blockchain technology is a decentralized way to collectively maintain the trusted database technology, which has the characteristics of decentralization, tamper proof and highly scalable. It is rapidly integrating with the new generation of information technology such as big data, cloud computing, artificial intelligence and 5g, and has been applied to various important fields such as government affairs, medical care, public charity and judicial governance, It is expected to promote human from the era of information internet to the era of value Internet

blockchain development stage

in the past decade, blockchain technology has been continuously upgraded, and the instry divides its evolution and development process into three stages, which are not realized in turn, but a process of common development and mutual promotion

in 2020, the blockchain instry will be further standardized

in 2020, China's blockchain policy will continue to be favorable, the standards and specifications will be more perfect, the instrial scale will continue to grow, the technology will continue to innovate and develop, and the application demonstration effect in key fields will accelerate. At the same time, according to the problems existing in the development of China's blockchain in 2019, CCID blockchain Research Institute puts forward six suggestions: accelerating the formulation of top-level design, establishing and improving the regulatory system, accelerating the innovation and development of core technologies, promoting the third-party evaluation and certification, strengthening the cultivation of professional talents, and accelerating the implementation of applications in various fields

- the above data comes from the analysis report of China's blockchain instry market outlook and investment strategic planning of foresight Instry Research Institute

4. "Sensitivity" is generally used in relay protection, which is an index (reliability, accuracy, etc.)“ "Sensitivity" refers to the sensitivity of relay protection devices to (minor) faults within the protection scope
the load rate required by different factories in different seasons is different, and the load rate issued by large factories and units is higher, which is for energy saving. When there is excess power, the generation of small units is usually limited, so the plants usually generate power according to the load curve issued by the dispatch, and the load rate is not assessed. Load rate = 24 hours average load / total adjustable output.

5. Learn and then know the deficiency, teach and then know the difficulty. Knowing the inadequacy and then being able to reflexive; Know the difficulties, and then be able to self-improvement

- Confucius (thinker and ecator in the spring and Autumn period) was quoted from the book of rites. Learning records

few but eager to learn, such as the sunrise of the sun; Strong and studious, like the light in the sun; Old and studious, as bright as a candle<

- Liu Xiang (Western Han Dynasty Confucian classics scholar, litterateur) quoted from Shuo yuan

he who sees a lot is erudite, he who hears a lot is wise, he who refuses to admonish is blocked, and he who specializes in himself is isolated<

- Huan Kuan quoted from on salt and iron. Zhiyi

if one's interest is not far away and his mind is absent-minded, he can't learn

- Zhang Zai (philosopher of the Northern Song Dynasty) was quoted from the Confucian classics. In the chapter of righteousness and reason,

the world is full of knowledge, and the human relationship is the article<

- Cao Xueqin (a writer of Qing Dynasty) quoted from Chapter 5 of a dream of Red Mansions

it's good to ask questions If you don't want to, just casually ask, you can get a correct answer, and it may not be greatly benefited. Therefore, the word "learning" is placed under "learning"<

- Xie Juezai (Modern revolutionist) quoted from the collection of no doubt

the effort of learning is the effort of chewing carefully and swallowing slowly. It's just like eating a meal. You have to chew it well to digest it. It's good for your health

- Tao Zhu is quoted from ideal. Sentiment. Spiritual life is a good way to study<

- Cai Shangsi (modern historian) quoted from youth digest, No.11, 1983

learning should grasp the basic knowledge: not aim too high, but ignore the basic things. Himalayas is a famous mountain in the world, because it is a peak built on the Himalayas and the vast plateau of Panji; If the Himalayas are built on the river sea plain, the peak of 8000 meters is difficult to exist, just like the water without a source is easy to dry up<

- Xu Teli (modern ecator and revolutionist) quoted from Xu Teli's ecation anthology

it's not difficult to learn a foreign language. Learning a foreign language is like making friends. The more friends you make, the more familiar you are. When you meet each other every day, the more intimate you are< Gao Shiqi quoted from the people's Liberation Army Daily on December 31, 1980. When he studied and studied, he should pay attention to two aspects: one is "malnutrition", without a certain foundation of literature and history, preparation of scientific theory, and collection of first-hand data. What he did was either sallow and thin, or abnormal development; The second is indigestion. For book knowledge, no matter the ancient or modern people or an authoritative theory, we should study it deeply, chew it too carefully, think independently, and avoid swallowing it all, following others' advice, drifting with the tide, careless and superficial<

- Ma Yinchu (modern scholar and ecator) quoted from Beijing Evening News on June 22, 1981

step by step! The road I have taken is a graal one<

- Hua Luogeng (a modern mathematician) quoted from Beijing Evening News on June 20, 1980

learned people and successful people at all times and in all over the world always pay great attention to accumulation. Knowledge is accumulated by machine, so is experience. We shouldn't be like a passing cloud to anything<

- Deng Tuo (Modern Journalist and scholar) quoted from "recalling Deng Tuo" on February 27, 1979. There are three words for hard work: one is called hard work, the other is called hard work. We must cheer up and work hard<

- Mao Zedong quoted from being a revolutionary promoter

the situation is constantly changing. If you want to adapt your thoughts to the new situation, you have to learn<

- Mao Zedong quoted from "speech at the national propaganda work conference of the Communist Party of China"

step up learning, grasp the center, rather fine than miscellaneous, rather specialized than more<

- Zhou Enlai (a modern revolutionist and politician) quoted from selected works of Zhou Enlai Volume I

nails have two advantages: one is "squeezing" strength, the other is "drilling" strength. In our study, we should also advocate this "nail" spirit and be good at squeezing and drilling<

-- Lei Feng (Contemporary excellent soldier and martyr) quoted from Lei Feng's Diary

6.

Deflection refers to the linear displacement of the axis of the member perpendicular to the axis or the central plane of the shell perpendicular to the central plane when the force or non-uniform temperature changes

the deflection of slender body (such as beam or column) refers to the displacement of each point on its axis in the normal plane of the axis at that point. The deflection of thin plate or shell refers to the displacement of each point on the middle plane normal at this point. The rule that the deflection of each point on the object changes with position and time is called deflection function or displacement function

the deflection observation of building includes the deflection observation of building foundation, building main body and independent structure (such as independent wall and column). For high-rise buildings, when there is a large concentrated load on a small area, it may lead to the settlement of the foundation and buildings. The uneven settlement will lead to the inclination of the building, the bending of local components and the generation of cracks

extended data

1. Deflection calculation formula: ymax = 5ql ^ 4 / (384ei) (EI is the bending stiffness of beam under uniform load q)

deflection is related to load size, member section size and material physical properties of member

Deflection the linear displacement of the centroid of the cross section along the direction perpendicular to the axis ring bending deformation is called deflection γ Expression

rotation angle the angle at which the cross section turns relative to its original position ring bending deformation is called rotation angle θ Expression

The traditional bridge deflection measurement mostly uses dial indicator or displacement meter to measure directly, which is still widely used in bridge maintenance, old bridge safety assessment or new bridge acceptance

7. 2015 data: ie11 browser ranked first with 25.26% share (26.9% in August), chrome 45 ranked second with 15.25% market share. IE8 ranked third with a share of 11.71% (up slightly from 10.92% in August). Since September, Firefox 40 has ranked fourth with 7.58% market share. A statistic from StatCounter shows that Chrome browser ranks first with a market share of 56.51%, which is the same as that in August. Since September, it has jumped to the second place with 17.34% market share, which is unprecedented. The market share of Internet Explorer was 17.11%, compared with 17.51% in the same period of August. Although the market share declined slightly, the ranking dropped to the third place. Safari's market share was 4.27%, up slightly from 4.17% in July. Opera, the fifth largest company, had a market share of 1.84%, down slightly from 1.86% in August.