Does iron absorption count
where h is the intensity of magnetic field, and the unit is a / m; N is the number of turns of the excitation coil; I is the excitation current (measured value), unit a; Le is the effective magnetic circuit length of the test sample, in M
calculation formula of magnetic inction: B= Φ / ( N × AE)
where B is the magnetic inction intensity, and the unit is WB / m ^ 2; Φ Is the inced magnetic flux (measured value), in WB; N is the number of turns of the inction coil; AE is the effective cross-sectional area of the test sample, in m ^ 2.
& 160 160; 1、 Magnet density: the density of N35 is about 7.5g/cm3 160; 2、 Magnet weight: Volume × Density (30mm) × 15mm × 5mm × 0075 = 16.875g
& 160 160; 3、 Magnet suction: 16.875 × 600 = 10125g
& 160 160; It can be seen that a 30mm × 15mm × A 5mm square magnet can hold about 10.1kg of objects< br /> 160; Another example: a 20 mm * 5 mm N35 NdFeB magnet
, # 160 160; Suction = (10 radius * 10 radius * 3.14 * 5 thickness) volume * 0.0075 density * 600 times = 7065g (g), that is to say, 20 * 5 N35 magnet can absorb 7.065kg object< br /> 160; If your magnet specifications are of these two specifications, you can directly apply the formula to calculate. It should be noted that the dimension unit is mm (mm), not this unit, which needs to be converted< br /> < br /> 160; Calculation formula of magnetic force with permanent magnet f = bilsin θ< br /> 160; F is the magnetic force, also known as ampere force, B is the magnetic inction, I is the current in the wire, l is the length of the wire, θ F = MH, where m is the strength of the magnetic pole and H is the strength of the magnetic field. The strength of the magnetic field proced by the magnetic pole is inversely proportional to the third power of the distance R
if you still consider upgrading the configuration in the future, it's best to go directly to 650
My world brings us a lot of joy. I can still remember the time when I used to be online with my friends. Today, this game is still in my mobile phone. In my memory, the best sandbox survival game is "my world". It takes six or seven years to play this game. My world game can be said to accompany me through my youth< the most important part of this game is mining. As the name suggests, it is mining under the ground
magmatic layer of strange mine cave: in my world, diamond is one of the top minerals, which generally exist in the magmatic layer< there are some caves that can reach the magmatic layer. If you are lucky, you may find diamonds. That's the strange mine I came across when I played my world game strong>
Reason:
because there is an amino acid called cytochrome C in all biological cells, the amino acid difference between human and pig cytochrome c is small, so the gene is similar
genes support the basic structure and performance of life. It stores all the information of race, blood type, breeding, growth, apoptosis and other processes of life. The interdependence of environment and heredity deces the important physiological processes of life reproction, cell division and protein synthesis. All life phenomena such as life, growth, decline, disease, aging and death are related to genes. It is also the internal factor that determines life and health
the cells are very tiny and can be seen only under the microscope. It is mainly composed of nucleus and cytoplasm with cell membrane on the surface. There are cell walls outside the cell membrane, plastids in the cytoplasm, chloroplasts, vacuoles and mitochondria in the body of higher plants. There is no cell wall in animal cells and centrosome in cytoplasm, but not in higher plant cells. Cells have the functions of movement, nutrition and reproction
extended data
human body is composed of somatic cells and germ cells. Somatic cells contain two times as many chromosomes as germ cells. Except germ cells, other cells in human body contain 23 pairs of chromosomes (except some cells without nucleus in blood). The life span of intestinal mucosa cells is 3 days, and that of liver cells is 150 days, The life span of taste bud cells is 10 days, and that of nail cells is 6 to 10 months
However, the life span of nerve cells in brain, bone marrow and eyes is several decades, which is almost the same as that of human body. Some of the white blood cells in the blood can only live for a few hours. In the whole human body, 100 million cells die every minutethe minimum structure of this genetic material, that is, the unit is gene
I can only answer so many questions
as for what is a pig's gene, you need to do experiments to detect his genes one by one.
http://www.askmehelpdesk.com/biology/human-vs-pig-chimpanzee-dna-328332.html
明确的回答是
The Human vs Pig albumen genes are 83% identical (Identities = 1739/2091, Gaps = 80/2091 (3%)). 人和猪83%相似
The Human vs Chimp albumen genes are 99% identical (Identities = 2119/2136, Gaps = 0/2136 (0%)). 任何大猩猩,99%
The Chimp vs Pig albumen genes are 82% identical (Identities = 1668/2017, Gaps = 84/2017 (4%)). 大猩猩和猪82%