The development of virtual currency with advanced technology
this is also a distributed (decentralized) digital currency. Unlike the sha256 mining algorithm used by bitcoin, LTC adopts scrypt algorithm. Scrypt algorithm uses sha256 as its subroutine, and scrypt itself needs a lot of memory. Each hash is used as the seed of the input, and then it needs a lot of memory to store another pseudo-random sequence to generate the pseudo-random points of the sequence and output the hash value. In the mining of BTC (bitcoin), it is not enough to rely on simple graphics card mining (it takes about ten to dozens of days to dig a BTC with general configuration graphics card). The emergence of various expensive mining machines has raised the threshold for ordinary people to get BTC through mining, while LTC has certain advantages in using PC graphics card mining This passage comes from Zhihu.)
compared with BTC, litecain has made a little improvement in technology. If BTC is gold now, LTC is silver for the time being
the biggest advantage of litecoin is that it can confirm the authenticity faster. The virtual currency is designed and maintained by Charles Lee. Bitcoin transactions need to be verified, and the average verification time is more than 10 minutes. Most transaction websites need 1 hour to verify. The average transaction confirmation time of liteoin is 2.5 minutes. Developers claim that shortening the verification time increases the practicability of virtual currency. The bitcoin mining efficiency of customized machine and AMD GPU is the highest, making it almost unprofitable for miners using CPU mining. Litecain's mining excludes GPUs and custom processors, so it doesn't rely too much on a small number of professional miners
ppcoin
ppcoin (PPC) was released on August 19, 2012, which has improved the original technology of BTC. Use proof of make and add the concept of coin age
ppcoin is a bifurcated project of bitcoin, which aims to achieve energy efficiency and maintain the best performance of the original bitcoin as far as possible. The unit price of ppcoin is US $0.22 and the total currency value is US $4 million
ppcoin does not have a fixed upper limit of money supply, but it does not mean that ppcoin has obvious inflation compared with bitcoin. Bitcoin can be compared to gold. The annual inflation rate of gold is about 1-3%. Although gold has no known upper limit of money supply, we still know that it is a reliable scarce commodity
ppcoin has two types of casting: work certificate and equity certificate. The coinage rate of working proof is affected by Moore's law, which depends on the doubling of our working proof ability. What we all know is that Moore's law will eventually come to an end. By then, the ppcoin of inflation may be close to the gold level. The annual maximum inflation rate of certificate of equity is 1%. At the same time, ppcoin's transaction costs were destroyed to fight inflation. So on the whole, the coin design of ppcoin is still a very low inflation design in the future, which can be comparable with bitcoin<
ppcoin's reward is similar to lottery, which will determine the winning probability according to the number of ppcoin held by miners. Sunny king, one of the founders, said that their design is based on a new concept of long-term energy efficiency
terracoin
terracoin (TRC) was released on October 26, 2012, with a total currency of 42 million. The speed of each block is 2 minutes, slightly faster than LTC. There is not much special in technology, similar to the proction of BTC halved every four years
however, the operation team seems to have a strong business background and may be better than other bitcoins in circulation. The development of virtual currency is getting more and more attention. Now some teams with business background will accelerate the development of virtual currency
namecoin
namecoin is a distributed domain name system based on bitcoin technology. Its principle is the same as bitcoin. The first release date of this open source software is April 18, 2011
namecoin is generated from an original block which is different from bitcoin's main trading block. It uses a new blockchain, which is independent of bitcoin's blockchain. Because it is based on bitcoin, the security, distribution, robustness, encryption and migration of domain names are guaranteed mathematically. You can dig bitcoin and namecoin at the same time
this project was discussed and proposed by bitdns, which is mainly dissatisfied with the defects of DNS. The only top-level domain name of namecoin is. Bit. It costs namecoin to register a. Bit domain name
in addition, Q currency, Shanda currency, starting point currency and various online game currencies are also virtual currencies.
Virtual currency as a new era of currency, the future development prospects are still very good, Zhihu of course can develop their own virtual currency
based on the above, I would like to advise you:
1. If you don't believe in virtual currency, you must not participate in it. For you, it is pyramid selling
2. Don't trust any trading platform, no matter whether the founder of the trading platform is on CCTV (there are many cheaters on CCTV), or take a picture with the national leaders, and save the money when you buy it. Back up your wallet. Don't be afraid of trouble
3. Don't inlge in short-term business. Your heart can't stand it. Staring at the price up and down every day, you will go crazy one day, just like speculating in stocks. There are few short-term businesses to make money, and they are not as good as stocks. Stocks are protected by national laws, so it's hard to say money
4. If you really want to earn money from virtual currency, choose some cheap virtual currency that you think is more reliable (the value of each virtual currency is less than 10 cents). If it's too expensive, don't buy it. Each virtual currency with a value of less than 100 yuan is a long-term investment, which is called angel investment. What does Ma Yun say: in case it develops
5. It's also good to choose a few free virtual coins for mining. It's also good to dig a few cents every day and accumulate every day
if you want to develop it, I suggest you take a look at Chongqing anonymous technology, which is doing a lot. Exchanges, wallets, games
at present, Yingtang Zhongchuang is an enterprise that uses blockchain technology to develop system software, including trading system, platform and virtual Coin Wallet. These procts are developed with certain stability and security, and are one of the more mature development schemes.
The essence of money is the general equivalent. In the process of the continuous development and evolution of human history, it has gone through the stage of physical money, the stage of substitute money, and then entered the stage of credit money. In primitive society, people exchanged livestock, salt, shells and other hard to get goods as general equivalents
in the long history, the emergence of metal currency makes the economic life achieve unprecedented prosperity. However, e to the inconvenience of carrying metal money, paper money became the mainstream form of money. With the rapid development of modern information technology, e-money has come into our life
if the evolution process from physical money to value symbol paper money is the first qualitative leap in the history of money development, then the evolution process from paper money to electronic money is the second qualitative leap in the history of money development
from the perspective of money form, physical money itself is a commodity in addition to performing monetary functions; Paper money is a symbolic tool of value for commodity exchange and a credit currency; Electronic currency is the proct of highly developed Internet economy and continuous progress of bank payment and settlement technology. It not only has the function of traditional currency, but also can continuously improve digital currency
At the same time, the virtual money market based on electronic information is also booming. By the end of 2014, the number of Internet users in China had reached 632 million, including 517 million registered users in the online game market and 114.48 billion yuan of sales revenue, an actual increase of 37.7% over the previous yeara huge virtual space based on the Internet has been formally formed. As a kind of virtual currency with intrinsic value, convenient online trading behavior, low transaction cost, and service providers' issuance, it emerges as the times require
first of all, from the functional analysis. Virtual currency is a kind of transaction medium in the Internet virtual space, which has the function of value scale, but the value scale of virtual currency is different from that of legal currency
using virtual currency to purchase virtual procts and services can only be within the scope specified and allowed by the issuer of virtual currency (Internet operator), and the size of this scope depends on the number of virtual procts and services. If the virtual procts and services provided by the website are large enough, the scope of virtual currency will be large
the currency value of virtual currency depends on the pricing of virtual currency by issuers. When no currency can communicate between virtual cyberspace and reality, the pricing of procts and services is still based on real RMB. That is to say, when issuers of virtual currency price their own virtual currency, they should first convert the price of virtual currency based on RMB
Mining
can go to the human
Irvine forest
at present, there are more than 200 colleges and universities in China offering social work majors, and the number of social work talents trained each year is about 10000. Although these people are far from enough according to the social needs,
in fact, only 10% - 30% of the students choose the corresponding social work, and a considerable number of other students go to work in institutions, enterprises and other units. Many social work students feel that their "employment prospects are not optimistic". Experts believe that the main reason for this "not optimistic" is that our specialization is ahead of professionalism<
employment direction
Civil Affairs, women's federations, charities, social organizations, community service organizations, sub district offices, etc< Social workers are equivalent to government employees. At present, as a profession, this new major is "indifferent" by the society. Only one or two percent of the students who can be admitted by the Ministry of civil affairs to become professional social workers every year, and even the professional counterpart rate of some schools is zero. The low employment rate of social work major and the fierce examination of civil servants prove from another aspect that we still have a long way to go to realize "big market and small government"< According to the statistics, there are nearly 20000 social workers paid by the government in Guangzhou, among which the number of social workers in the urban area of Guangzhou has reached more than 8000. It mainly works in the fields of youth ecation, women's work and rehabilitation counseling for the disabled, with the community neighborhood committee as the main working platform< However, many people who are actually engaged in social work are still faced with an embarrassing situation. Social work is a profession specialized in social work, and most of the current practitioners do not have the relevant professional quality and skills; On the other hand, the qualification standard of social workers has just started in China, and the definition of social workers is not clear, so it is difficult for people who do social work to be called social workers in a strict sense
the society is in urgent need of a large number of social workers, and the employment rate of social work is pitifully low. Why do these two situations exist at the same time? One is that the government, the largest employer of social science graates, gives jobs to civil servants. Second, the social worker consciousness of the whole society has not been formed. Social work students will have to explain what social work is to the recruiter. After they take part in the work, they are often used as nurses or just handyman. This leads to another problem: they don't know the professionalism of social work at all (they need to be certified in foreign countries), and they are more willing to spend less money to find cheap non professional labor<
career prospects
in developed countries and regions, the social work system has been very perfect and professional, and social workers are an important force to maintain the healthy operation of society. They have become an indispensable part of the society in the prevention of crime, especially in the prevention of juvenile delinquency, the care of the elderly and other support to help vulnerable groups. In Hong Kong, one in every 1000 people is a social worker
with the rapid development of China's economy and society, many social problems also increase. It can be said that social workers are involved in a wide range of occupations,
the personnel engaged in psychological counseling of patients in hospitals, the personnel of judicial institutions dealing with and counseling family disputes, etc., all belong to the scope of social workers. According to the development trend of "big market, small government" and referring to the policy of "government purchasing services" being implemented in Shanghai (the government, through bidding, employs private service agencies to help community correction personnel, drug addicts, problem teenagers and other marginal groups return to society), the above social work will eventually start from civil affairs, justice, social security, and so on Marketization and socialization are separated from the health law enforcement system, which will provide a lot of social work opportunities
experts predict that in the next 10 years, citizens will graally form the awareness of social work, and the government will also introce supporting policies. Social work, a new profession, will have a bright future. According to the statistics of the labor and social security department, one third of the more than 300000 workers in China have a college degree or below. Only according to the regulations of Shanghai municipal government, nearly 3000 neighborhood (Village) committees in Shanghai are equipped with two employment aid workers and one social aid worker, which requires 6000 people<
the "Interim Measures of Shanghai Municipality for the professional qualification of social workers" jointly issued by the Shanghai Municipal Bureau of personnel and the Civil Affairs Bureau has been implemented since June this year. After the qualification examination in November, the first batch of social workers with professional qualification will be born. It is reported that in two or three years, all social service workers in Shanghai will be required to take up their posts after qualification certification. Their services include social assistance, social welfare, social correction, psychological counseling, marriage introction and funeral services
salary level
in developed countries and regions, engaging in social work is a very noble and decent job, and the remuneration is also very good. The income of social workers in Hong Kong is stable. The average monthly salary of junior social workers ranges from 12000 to 18000 Hong Kong dollars, and the annual salary of senior social workers can reach more than 400000 yuan
in the mainland, the situation is quite different. At present, there is no unified standard system for the salary of social workers. Apart from the fact that some graates recruited by the Ministry of civil affairs in the form of civil servants can be guaranteed for drought and flood every year, other posts, such as social workers in welfare homes or street offices, can only enjoy the same treatment as ordinary nursing staff. Moreover, e to the staffing problem, many of their households and housing are difficult to solve
ring the probation period of "drug control, community correction and youth affairs social workers" in Pudong New Area, the monthly salary of social workers with college degree and Bachelor degree is 800 yuan and 1000 yuan respectively. At the end of the probation period, the monthly salary of social workers with college degree is about 1500 yuan, and that of those with bachelor degree is about 2000 yuan. According to the work assessment, the income of social workers graally increases according to the working years. The monthly salary of social workers who have passed the Shanghai social worker qualification examination and obtained the qualification of "social worker assistant" will be increased by 5%; The monthly salary of social workers who have obtained the qualification of "social work teacher" will be increased by 10%.
bus line: No.5, the whole journey is about 3.0 km
1. Walk about 10 meters from the central bus station to the central bus station
2. Take No.5 bus, go through 6 stops, and reach the municipal Eye Hospital Station
3. Walk about 220 meters to Yuncheng eye hospital
the best private universities this year need more than one, and even the junior college line has the opportunity to come to Taiwan for undergraate ecation.
the list was just released yesterday. If you are interested in applying for the University of Taiwan in the future, you can refer to my cyberspace blog.
to work, it depends on whether you can find an employer who is willing to use you in private