Dynamometer
we are also most concerned about Suan Li Gang. We need to see whether a company has strength, not only depends on the Suan Li level, but also depends on the single-T burst rate and 24-hour mining efficiency. After all, the amount of money is directly related to our interests
with the coming of the main network of filecoin, the popularity of filecoin continues to increase worldwide, and the price of fil futures has risen rapidly since late May. Some people say that the price of fil currency will soar after the main network of filecoin goes online
we also know that from the perspective of filecoin allocation model, filecoin issued a total of 2 billion pieces, of which 70% were awarded to miners, and the 70% were used to provide data storage services, maintain blockchain, etc; The remaining 30% goes to teams, investors and foundations, with a six-month to six-year unlock period. It can be seen from the distribution model that there were few circulating tokens in early fil, which is also the reason why many people speculate that fil will soar after it goes online
let me give you some suggestions on how to participate. What are China's IPFs companies? How to choose the company and mining machinery
(1) first of all, hardware. We must pay attention to cost performance, rather than blindly choose high or low price. High price does not necessarily bring you income matching with the price. Low price may not be able to participate and lose money
(2) the second is to pay attention to mining strategy. Professional and efficient mining strategy can improve our mining efficiency. Good mining machine with a good mining strategy, you can get a good profit
(3) the third suggestion is to have a professional operation and maintenance team. Our mining machine is placed in the professional IDC room, and we also have our own professional operation and maintenance team, which is of course no problem
if you want to manage by yourself, you must consider environmental factors, such as bandwidth, operation and maintenance, etc. Professional things to professional personnel to do, in order to get better benefits. Another is that in the early stage, the storage is provided by the government or itself, but in the later stage, if the network wants to generate real market storage orders to obtain effective computing power, it also needs a special trading network to provide this service. This has higher requirements for the storage environment and operation and maintenance
(4) the fourth suggestion is to maximize the income of capital allocation. How to understand? That is to say, don't excessively pursue high performance and high storage capacity, because it takes a long time to accumulate effective computing power in the early stage. If a large number of hard disks are invested in one time in the early stage, which takes up funds, but has no effect on the improvement of income, it is a waste. Instead of this, it is better to buy more mining machines in the early stage, and expand the capacity when the storage is full in the later stage. Only in this way can the interests be maximized with the same investment.
advantages: big brand, bundled Taobao, Alipay, etc. account registration and payment is convenient, proct line is perfect, autonomy is high;
disadvantages: the timeliness of after-sales service is poor, and the work order response speed is often more than half an hour; Disk IO is chicken ribs; There are many people who use it. The public says that the public is reasonable, and the old says that the old is reasonable
alicloud is the largest cloud service provider in China. Relying on years of technical experience of Taobao, tmall and Alibaba, it is still very strong. However, Amazon, as the pioneer of cloud computing, has the largest market share in the world, and its strength can not be small
here I would like to mention bird cloud computing. Although it has not been established for a long time and its brand awareness is not as high as that of the previous two companies, bird cloud focuses on high-end quality. The quality of its servers is very good and its security and stability are guaranteed.
Intelligence quotient (IQ) = intelligence age / actual physiological age, and then multiply by 100. For example, the intelligence age of the child measured by the scale is 3 years and 6 months, and the actual age on the test day is 3 years, then IQ = 42 * 100 / 36 = 117
the distribution of intelligence quotient of Stanford Binet scale: 140 or above is excellent (genius); 120-139 were excellent; 110-119 are superior and intelligent; 90-109 is medium; 80-89 were middle and lower; 70-79 is critical intelligence deficiency; Below 69 is mental retardation
There are two types of high segment IQ test: Graphic logic and digital logic. It is mainly designed to test IQ higher than ordinary people by more than two standard deviations; At the same time, it is also the entrance test of some high IQ associationsthe reason for the design of these high segment tests is that although the range of Wechsler intelligence test in general hospitals is before 40 to 160, the test subjects are mainly people with IQ of 70-130, and the designers also admit that people who deviate from the average level are not suitable for this test. This kind of high-level intelligence test is very difficult, with no options and unlimited time, which is a common feature of most high-level intelligence tests
the questions of digital logic and graphic logic do not involve the acquired knowledge, but only test the innate intelligence level
extended data:
there are two kinds of IQ tests that are still widely used: Stanford Binet test and Wechsler test
The most widely used models are Stanford Binet test and Wechsler model. As of July 2014, the number of norm data has exceeded 7.9 million. Through the scientific presentation of the average IQ of different groups (randomly selected big data results in proportion)2. Weather prediction: more weather models can be simulated, more parameters can be analyzed, and more accurate and farther future information can be predicted through calculation power
3. Special effects rendering: concentrated super computing power can rece the time of movie rendering and improve the rendering efficiency. In addition, there are more big data, AI related video, medical image analysis, agricultural remote sensing, environmental monitoring and other instries can be applied to
I found all of them on the Internet. It's very hard. I hope you can adopt them. Thank you. Thank you very much for your patience. If you have any help, please accept it. I wish you a happy life! thank you!
mathematics does not have an external reality, but a kind of relationship, a kind of knowledge of logical thinking, which shows some abstraction. Children live in the real world and have some experience of various things and phenomena in real life. On the other hand, children's thinking is still in the stage of concrete image thinking, They lack the basic concept of understanding the abstract relationship of things. Children in our class mainly rely on memory and proficiency to carry out calculation activities, which lack flexibility; In the process of observation, most of the children are not able to operate actively and are not interested in the experimental results<
2. Research objects:
48 children in class 2 of Da Da Da class
3. Experimental time:
March 2004 - July 2004
4. Experimental objectives:
1. Guide children to develop the habit of exploring surrounding things, thinking, asking questions, and actively answering questions, and be careful and attentive in the process of observation, And express their views with an objective attitude
2. In daily life or games, guide children to observe carefully and attentively, observe from different angles or continuously observe an object for a period of time, find out the reasons for the change of things, and learn simple reasoning
3. Guide children to classify and learn objects from different angles in games and daily life, and classify objects according to two dimensions at the same time. They have preliminary generalization ability< 5. Experimental steps:
(1) observation record form of children's basic situation in this class
ecational goal
reaching the standard
1. Learning ordinal number, odd and even number, adjacent number and other knowledge within 10, learning following number and inverted number<
significant: 38 people
not significant: 10 people
2. Learn the decomposition and composition of numbers within 10, experience the inclusion relationship between total number and part number, and the complementary relationship and exchange relationship between part number and part number
significant: 45 people
not significant: 3 people
3, Help children understand the meaning of addition and subtraction, master the calculation skills of addition and subtraction within 10, and experience the inverse relationship between addition and subtraction
significant: 40 people
not significant: 8 people
4. Be able to listen to the rules of some operation activities, carry out activities according to the rules, check the process and results of activities according to the rules, and tell the process and results of operation activities clearly. And can participate in more group activities
significant: 26 people
not significant: 22 people
5. With the help of teachers, they can summarize relevant mathematical experience, learn to observe and think about problems from different angles and aspects, and solve simple mathematical problems through observation, comparison, analogy and transfer<
significant: 18 people
not significant: 30 people
6. Learn to put and organize activity materials in an orderly way<
significant: 44 people
not significant: 4 people
7. They can play math games friendly with their peers and negotiate with their peers by taking turns, waiting appropriately and negotiating
significant: 10
not significant: 38
1. Cultivate students' interest in oral arithmetic
"interest is the best teacher". In the teaching of oral arithmetic, we should also stimulate students' interest and make them happy to do so, so as to continuously improve the accuracy of oral arithmetic. For example, games, competitions and other forms can be adopted to arouse students' interest and improve their oral calculation ability
2. Enhance the students' perseverance in learning
mental arithmetic itself is relatively boring, and some students will have resistance over time. In teaching, we can introce the story of Chinese and foreign mathematicians to students. For example, Chen Jingrun, a famous mathematician in China, used several sacks of draft paper when he studied Goldbach's conjecture. By introcing the hard work of mathematicians, we can inspire students to love their motherland and mathematics, set up lofty ideals from childhood, enhance students' perseverance in learning, and cultivate their good quality of hard work
3. Cultivating students' good habits
good study habits is the guarantee to improve the accuracy of oral arithmetic. Therefore, we should try our best to correct students' learning attitude and cultivate their good learning habits. Of course, in teaching, we should pay attention to carefully analyze the students' personality differences according to the actual situation of the students in the class, correct the mistakes in time, effectively prevent the mistakes, and persistently do a good job in the teaching of oral arithmetic, which will graally improve the students' oral arithmetic ability
4
carry addition, abdication subtraction, in table multiplication and division within 20 should enable students to achieve the proficiency of "blurting out without thinking". 3-5 minutes of oral arithmetic training should be carried out every day. The forms should be flexible and diversified, and the training should be targeted, purposeful and planned in combination with the teaching content
5. Pay attention to the analysis of wrong questions
when students make mistakes in calculation, they must be guided to analyze the causes of the mistakes, find the root of the mistakes and correct them in time. For repeated mistakes, teachers can choose typical mistakes, organize students to observe, think, analyze and communicate with each other. Through collective "consultation", teachers can not only achieve the effect of "treating" but also "preventing" diseases. Usually,
(1) cultivate the habit of serious examination. When examining the topic, it is required to have a look, two pictures, three thoughts, four calculations and five checks. A look is to see the numbers and operational symbols in the question; The second is to mark which step to calculate first and which step to calculate later on the test questions; Third, thinking about where to use oral calculation, where to use written calculation, and whether to use simple calculation; The fourth calculation is to take notes seriously; The fifth inspection means serious inspection
(2) cultivate the habit of serious calculation. In the four operations, it is necessary to train students' calm and calm learning attitude. When encountering the calculation questions with large numbers and many steps, we should be not anxious, not dry, calm thinking and patient calculation. Even if it is a simple calculation problem, we should be careful and not act rashly. If you can do it orally, you should do it in writing. When calculating, the writing should be neat, the format should be standard and the method should be reasonable. At the same time, strengthen the students' habit of standard drafting to ensure the accuracy of calculation
(3) cultivate the habit of careful examination. It is impossible for students to make no mistakes in their calculations. Teachers should ecate students to form the habit of checking calculus after calculation, and regard examination as an indispensable part of calculation. During the inspection, we should be patient and careful, and check step by step: first, check whether the number in the title is copied wrong; second, check whether the calculation process and results are wrong, and correct the mistakes in time.
another problem is the strength grade of bolts
I have a table here, which is the recommended torque value of the bolt, but the premise is that the new bolt meets the standard, without coating and lubrication
the load reaches 90% of the yield strength of the bolt
the recommended torque for the strength of the bolt is
3.614.3
4.619. 1
5.6 23.8
5.8 31.8
6.8 38.1
8.8 50.8
9.8 57.2
10.9 71.5
12.9 85.8
the answer of Hengshui Brady instrument
P = 0.8pa kg
where: p-impact force kg
p-tensile strength of material kg / cm2
a-sectional area of the material to be punched, for circle, a= π/ 4d2xt, T - the unit of material thickness is cm. For rectangle a = axbxt, the length and width of a and B materials. Other shapes are calculated in this way. 2 in the formula is the square sign, it should be noted that the unit should not be mistaken
in order to ensure the safety and long service life of the machine tool, the safety factor should be reserved when selecting the machine tool. Generally, the calculation result can be multiplied by 1.3-1.5. www.hsbulaidi.com
calculate the effective area of piston first, and then get the pressure value corresponding to the reading of pressure gauge according to the proct of pressure = pressure (reading of pressure gauge) and effective area
1MPa = 1000kPa = 10bar = 10000mbar = 10kg (kg)
