2017 virtual currency mine disaster
Mine card refers to the graphics card used by bitcoin mining machine, mostly amd graphics card
mine disaster refers to the decline in the price of bitcoin and the sale of second-hand mine cards
bitcoin mining machine graphics card long-term high load operation, graphics card service life will be reced accordingly, so the price will be cheaper
extended data:
bitcoin mining machine is a computer used to earn bitcoin. This kind of computer generally has professional mining chips, and mostly works in the way of burning graphics card, which consumes a lot of power. It is one of the ways to get bitcoin that users download software from personal computer and then run specific algorithm to get corresponding bitcoin after communicating with remote server
bitcoin mining started with low-cost hardware such as CPU or GPU, but with the popularity of bitcoin, the mining process has changed greatly. Nowadays, the mining activities are transferred to the field programmable gate array, and the hash speed can be achieved through optimization. The mining efficiency of this mode is very high
when the vast majority of video card mining machines and CPU mining machines are in a mine disaster, bitcoin mining with ASIC mining machines will not be affected. As the first big man in the virtual currency circle, bitcoin has become a deep-rooted belief in the coin circle. The total number of 21 million bitcoins also determines the transaction type and value-added of bitcoin
although bitcoin has begun to be recognized by most people, it has not really replaced the world's currency to fulfill its original intention, but it has become a collection beyond gold. The inflation of money, the rection of the total amount of mining and the increasing difficulty of mining all determine its future market prospects. The value-added has been firmly established, so people will rush to dig for mines, Because the bitcoin is actually worth more than gold
Mine disaster refers to the accident in the process of mining, which usually causes great risk of casualties. At least thousands of people die in mine disaster every year in the world. The common mine disasters include: gas explosion, coal st explosion, gas outburst, water leakage accident, mine fire, roof collapse, etc. In 2003, China proced about 35% of the world's coal, but accounted for about 80% of the deaths in coal mine accidents
China is a big coal procing country, a country heavily dependent on coal energy, and also a country with mining disasters. The main causes of the mine disaster are illegal mining, proction errors, equipment aging and faults. Each mine accident shows that solving these problems needs the unified coordination of all levels of departments. Only by constantly strengthening the management of mining, can the occurrence of mine accidents be effectively reced
It is a serious disaster in coal mine proction that gas is mixed with air, oxidizes rapidly at high temperature and proces shock wave. In 1675, a large-scale gas explosion occurred in Mostyn coal mine in England. Since then, major gas or gas and coal st explosion accidents have occurred many times in major coal mining countries. On April 26, 1942, a gas and coal st explosion occurred in Benxi Coal Mine, China, which was occupied by Japan. 1528 people died and 268 people were injured on the spot. It was the largest coal mine explosion in the world. With the development of coal mine proction technology and the improvement of gas control measures, such accidents have been graally recedthe main fire sources of gas explosion in China's coal mines are electric spark and blasting, and the main place of occurrence is mining face. The instantaneous temperature of coal mine gas explosion can reach 1850 ~ 2650 ℃, and the pressure can reach 9 times of the initial pressure. The gas near the explosion source impacts outward at a speed of several hundred meters per second, causing casualties and damage to the roadway and equipment. After the explosion, the oxygen concentration decreases and a large amount of CO2 and Co are generated, which may cause asphyxiation and poisoning
the investigation conclusions of public security organs are the most authoritative.
Guangshun North Street --- route of Beijing entry exit inspection and Quarantine Bureau:
bus route: No.682, the whole journey is about 11.5 km
1. Walk about 10 meters from Guangshun North Street to Wangjing Garden West Station
2. Take No.682, pass 19 stops, and reach tianshuiyuan Beili station
3. Walk about 100 meters, Arrival at Beijing entry exit inspection and quarantine bureau address: No.6, tianshuiyuan street, Chaoyang District, Beijing City; 117 road; 419 road; 502 road; 621 road; 635 road; 682 road; 729 road; 973 road; 976 road; 984 road; 985 road; 988 road
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Guidance:
you can go to the local physical examination institution or the physical examination center of the hospital to see the physician first, and then they will choose the targeted physical examination package according to your specific situation, age and sex, and increase or decrease some physical examination items according to your specific situation, which is more targeted and less expensive.