Mining will lead to instability of broadband network speed

1. This should not have too many requirements, generally not less than 4 megabytes

the founder of bitcoin, Tsung Nakamoto, left the bitcoin project in 2010 and became one of the most mysterious figures in the coin circle. Bitcoin is made by mining. Mining is a process of consuming computing resources to process transactions, ensuring network security and keeping everyone's information synchronized in the network. It can be understood as the data center of bitcoin. The difference lies in its completely decentralized design. Miners operate all over the world, and no one can control the network. This process is called "mining" because it is similar to gold panning, because it is also a temporary mechanism for issuing new bitcoin. However, unlike gold panning, bitcoin mining provides rewards for services that ensure the safe operation of payment networks. After the last bitcoin, mining is still necessary.

2. Of course, after the delay, filecoin can only be g with the main network line. Let's look forward to the main online line in July.

3.

Quantization is to discrete the amplitude of the instantaneous value obtained by sampling, that is, to use a set of specified levels to express the instantaneous sampling value with the closest level value

The range of continuous variation of input signal amplitude is divided into a finite number of non overlapping sub intervals (quantization stage), each sub interval is represented by a certain value in the interval, and the input signal falling in it will be output with this value, so that the continuous input signal can be transformed into an approximate signal with a finite number of discrete value levels

the difference between adjacent quantization levels is called quantization step. Any analog sample value that falls in the range of no more than half of the previous or next quantization step is represented by the quantization level, and the difference between the sample value and the quantization level is called quantization error or quantization noise

extended data

when the simulation sample value exceeds the quantifiable range, overload will occur. The overload error often greatly exceeds the normal quantization noise. Quantization can be divided into uniform quantization and non-uniform quantization. The former is also called linear quantization, which is suitable for the case of uniform distribution of signal amplitude

The latter is also called nonlinear quantization, which is suitable for the quantization of signals with non-uniform amplitude distribution (such as speech)

for non-stationary random signal, in order to adapt to the change of its dynamic range at any time and effectively improve the quantization signal-to-noise ratio, adaptive quantization with adaptive quantization step adjustment can be used. This method is used in adaptive differential pulse code molation (ADPCM) of speech signal. Quantization and coding are the basis of digital communication. It is widely used in computer, measurement, automatic control and other fields

for example, the sampled image is only spatially discretized into an array of pixels (samples). The gray value of each sample is a continuous variable with infinite values, which must be transformed into a finite number of discrete values and given different codewords in order to truly become a digital image

4. On weekdays (except legal holidays), motor vehicles with foreign license plates are forbidden to pass on the roads within the outer ring road (excluding the outer ring road) from 7:00 to 9:00 and from 16:00 to 19:00 every day. Other time periods need to follow the number limit rules.

5.

In Tianjin, foreign vehicles are forbidden to enter Tianjin from 7:00 to 9:00 and from 16:00 to 19:00 every day, and they can enter the urban area of Tianjin at any other time

according to Tianjin Public Security Bureau's "Circular on the continued implementation of traffic control measures for motor vehicles", since June 8, 2020, motor vehicles with foreign license plates (Beijing license plate small, medium and small vehicles) are prohibited from 7:00 to 9:00 and 16:00 to 19:00 every day on working days (except Saturdays and Sundays which are adjusted to work e to statutory holidays) Except mini passenger cars, and the motor vehicles registered and registered with the regional index of passenger cars in the city shall pass on the roads within the outer ring road

extended data:

the following motor vehicles are not subject to the above measures:

(1) four types of special vehicles, including police vehicles, fire engines, ambulances and engineering rescue vehicles

(2) large and medium-sized buses (including buses, regular buses, long-distance buses, etc.), taxis (excluding rental vehicles), special postal vehicles (with the pass issued by the public security traffic management department)

(3) motor vehicles of embassies and consulates of various countries and agencies of international organizations in China (vehicles with "Shi" brand))

(4) operation vehicles for sanitation, garden and road maintenance

(5) funeral vehicles in funeral parlors

(6) new energy vehicles with special license plates for new energy and new energy vehicles with license plates issued by the municipality

6.

Cars from other places can enter Tianjin before 7 o'clock and after 19 o'clock on weekdays

from January 7, 2019, Tianjin motor vehicle tail number limit will implement a new round of rotation. During the period of traffic restriction, the time and area of traffic restriction remain unchanged, that is, from 7:00 to 19:00 every day, freight vehicles are prohibited to pass on the outer ring road; From 7:00 to 9:00 and from 16:00 to 19:00 on weekdays, motor vehicles with foreign license plates are not allowed to pass on the roads within the outer ring road (excluding)

from 7:00 to 19:00 every day on weekdays, traffic management measures are implemented for motor vehicles with license plates in the city and other cities on the roads within the outer ring road (not included). The restrictions are 1 and 6 on Monday, 2 and 7 on Tuesday, 3 and 8 on Wednesday, 4 and 9 on Thursday and 5 and 0 on Friday

extended data:

the following motor vehicles are not subject to the above measures:

(1) four types of special vehicles such as police cars, fire engines, ambulances and engineering rescue vehicles

(2) large and medium-sized buses (including buses, regular buses, long-distance buses, etc.), taxis (excluding rental vehicles), special postal vehicles (with postal pass issued by the public security traffic control department)

(3) motor vehicles of embassies and consulates of various countries and agencies of international organizations in China (vehicles with "Shi" brand))

(4) operation vehicles for sanitation, garden and road maintenance

(5) funeral vehicles in funeral parlors

(6) new energy vehicles with license plates issued by the city

reference source: Tianjin Nankai District People's Government - Tianjin motor vehicle tail number restriction implementation new rotation: Monday

Tianjin Public Security Traffic Administration - Tianjin Public Security Bureau on the continued implementation of motor vehicle restriction management

7. You can enter the urban area from 4:00 to 7:00 in the afternoon; you can enter the urban area from 7:00 to 9:00 in the morning; you can enter the urban area from 7:00 to 7:00 in the evening
the last number is the limited day
no restrictions on weekends