Magic Technology Industry

RCF=g is the relative centrifugal force, the gravity is the multiple of the acceleration of gravity.

Knowing the motor r and g can find the rpm; conversely, if r and rpm are known, the g can also be found.

For example, take a known radius of r on the r scale and a known relative centrifugal force on the g scale. The extension of the line between these two points at the intersection of the rpm scale is rpm.

If the known value of g is on the right side of the g scale, the value on the right side of the rpm scale should be read, otherwise the opposite is true.

g and rpm can also be converted by the following formula:

RCF=1.119×105×rx (rpm) 2

The relationship between the centrifugal force g of the motor and the speed rmin:

Centrifugal force (F);

Centripetal force causes an object to be attracted to a central point, or repelled, or any action that tends to that point.

Centrifugal force can be interpreted as a tendency of an object to maintain its "limited amount".

The difference between them is that the centripetal force is under the inertial reference frame, while the centrifugal force is the force in the non-inertial frame.

Formula: F=mω2r

ω: rotation angular velocity (radians/second);

r: the distance between the rotating body and the axis of rotation (cm);

m: particle mass;

Relative centrifugal force (RCF);

RCF is the multiple of actual centrifugal force converted into gravitational acceleration;

g is the acceleration due to gravity (9.80665ms2)

The same is that one revolution is equal to 2π radians, so the angular velocity of the rotor is expressed in the number of revolutions per minute (revolutions per minute n or rmin):

Centrifugation is expressed in r/min.

Calculation formula of separation factor:

RCF=F centrifugal force/F gravity=mω?2rmg=ω?2rg=(2πrrrpm)?2rg

Note: rpm should be converted into revolution seconds

An analogy: a motor with a diameter of 1000 mm and a speed of 1000 rpm,

The separation factors are:

RCF(1000)=(2*3.1415*16.667)^2*0.59.8

=104.72^2*0.59.8

=560

and so......

G=?

When G=1500, any metal can be cut theoretically.

The centrifugal force will not change.

Of course, the premise is that the drill bit is strong enough.

From to:

1500=r×11.18×10-6×(rpm)2;

You can get the result:

When the diameter of the drill fixture is 50MM

Rpm (speed) = 60000.

Liu Chi was moving at high speed on the keyboard. It was a very big problem if he wanted 60,000 rpm, especially on a motor with a diameter of only 200mm.

So Liu Chi decided to cancel the power generation device and use direct current directly.

Make magic changes again.

......

Time is like flowing water.

'Ling, Ling, Ling...' A ringing of the phone interrupted Liu Chi who was experimenting.

"Hey?"

"Liu Chi, what you asked us to help last time has already come to fruition." Chen Luguang's appealing voice came into Liu Chi's ears from the phone.

"?" Liu Chi couldn't figure out what happened last time.

"What?"

"What happened last time?"

"It's your apprentice Zhou Meng's business. Why, I forgot it after such a short time?" Chen Luguang asked back.

"I'm doing an experiment, I didn't think of it all at once, how's it going? Is there hope?" Liu Chi came back to his senses and asked with a suppressed heart.

"There is a plan at the Kong X General Hospital, after discussion and deduction, the success rate reaches 75%."

"Really, that's great, do I have to prepare something?" Liu Chi asked with delight.

"She asked Zhou Meng to go over and check it in person to confirm that there is no discrepancy with the case form. If the error is too large, she will have to reconsult.

"When will you go?" Liu Chi asked anxiously.

"Arrange at your time."

"The sooner the better."

"You can go there when you are ready, I'll give you a call, and you can find her directly." Chen Luguang said: "I have already explained clearly to her."

"it is good."

"1391235XXX, Zhang Miao is the vice president of Kong X General Hospital."

"Okay, I'll contact her back."

"Okay, feel free to contact me if you have any questions."

"it is good!"

"..." After Liu Chi hung up the phone, he thought for a while, and finally stopped working and called Zhou Meng: "Girl, where is it?"

"I'm in my sister-in-law's office." Zhou Meng's crisp voice came from the phone.

"You spare time tomorrow and follow me to Kong X General Hospital." Liu Chi said directly.

"Why do you go to Kong X General Hospital?" Zhou Meng asked suspiciously.

"Don't you want to become a pretty young lady?" Liu Chi said jokingly.

"..." After a while, Zhou Meng came out again with a trembling voice: "Can it work?"

"According to your previous case table, the success rate has reached 75%." Liu Chi comforted: "Don't worry, it should be no problem, if Brother Chi spends money, we are not short of money."

"Well, thank you Brother Chi." Zhou Meng nodded heavily.

"Okay, that's it. You can take advantage of the time today and take care of all the things you have to do in the past few days. Although it is to check tomorrow, the time later may not be short."

"Brother went out recently and may not be back in a short time."

"Brother, where are you going?"

"The above items, go to do technical research, and leave after Brother Chi finishes handling the things at hand. It's more urgent over there."

"Hmm!"

"That's it, I will contact Xiakong X General Hospital first."

"..."

Liu Chi hung up Zhou Meng's phone and dialed Zhang Miao's phone.

"Hello, hello!" After the bell rang seven or eight times, a middle-aged woman's slightly old voice came into Liu Chi's ears.

"Hello, is this Academician Zhang Miaozhang of Kong X General Hospital?" Liu Chi asked.

"Am I Zhang Miao?"

"Hello, this way, I am Zhou Meng's brother." Liu Chi simply explained, "My friend told me just now that the markings on her face can be cured by your hospital, and he asked me to contact you. "

"Hello, hello, after many discussions by our experts on Zhou Meng's case, if you provide the case data on the basis of the cure, there is still a lot of confidence." Zhang Miao instantly became enthusiastic.

"That's great, thank you." Liu Chi thanked.

Isn't it strange for many people!

Anyway, no matter what, let's thank you first!

There will be no less meat.

"You're welcome, the possibility of cure is very high, but because the case files you provided are not our hospital's own files, it is best to let her come to our hospital in person for a comprehensive examination and decide which one to choose. Method of treatment."

"I know, my friend told me just now, is it convenient for tomorrow? If it is convenient, I will take Zhou Meng to check it tomorrow." Liu Chi said anxiously.

"Yes, you can go directly to Kong X General Hospital, and you can just call me directly. The address is in Xi Diaoyutai, Haidian District. Do you know how to get there?"

"I know, then I will be there tomorrow morning, and I will be there at around 10 o'clock."

"Okay, no problem... you will contact me then."

"Thank you Dean Zhang."

"..."

After Liu Chi hung up and confirmed that there was nothing to explain, he continued to modify the motor.

After get off work in the afternoon, Liu Chi told Ye Yuxin about taking Zhou Meng to Kong X General Hospital tomorrow.

The next day, Liu Chi took the two and went straight to Kong X General Hospital.

Nine fifty.

Liu Chi met with Deputy Dean Zhang Miao.

She is a middle-aged woman who is about 1.8 meters tall and dressed in white.

"Hello Dean Zhang, this is Liu Chi." Liu Chi shook his hand with Zhang Miao with a smile on his face.

"Hello, Mr. Liu." Zhang Miao saw that Liu Chi was so young. He glanced at the license plate, then looked at the other two cars, and took a breath. Which big brother's relative is this?

Do you want to be so high-profile.

Aren't you afraid that netizens will shoot you online and kill you?

But it seems wrong to think.

If it is a relative of a big brother, it should be impossible to directly intervene from above, and it is impossible to drive a car with this license plate.

This kind of car is not meant to be driven.

"This is my wife Ye Yuxin, this is Zhou Meng." Liu Chi introduced.

"Hello Dean Zhang." Zhou Meng said obediently.

"Hello." Ye Yuxin nodded with a smile.

"You're welcome, there are a lot of people, come to my office to talk again." Zhang Miao is not a person who has never seen the world, stopped the doubts in his heart, quickly calmed down, and took the three of them back to his office.

"..."

"Mr. Liu, regarding Zhou Meng's condition, if there is little discrepancy with the file you provided, we are sure to cure it." After Zhang Miao put the three of them down, everyone poured a glass of water.

"That is troublesome for Dean Zhang." Liu Chi said after taking a sip of water.

"I now ask the attending doctor Li Yuhong to come over and ask her to take Zhou Meng to have a re-examination first to determine the treatment method."

"Thank you."

Zhang Miao picked up the phone on the desktop and said a few words.

five minutes later.

A woman doctor who was nearly 1.7 meters tall, wore a large mask and looked slender in white, walked into Zhang Miao's office.

"Dean Zhang, are you looking for me?"

"Director Li, this is Zhou Meng, please take her for a comprehensive examination first." Zhang Miao pointed to Zhou Meng.

"Okay." Li Yuhong saw the three of them, a flash of surprise flashed in his eyes, and nodded, "You're called Zhou Meng, right?"

"Yeah!" Zhou Meng nodded honestly, his eyes drifting towards Li Yuhong involuntarily.

"Director Li troubles you." Liu Chi stood up hurriedly, very polite and authentic.

"It's okay, the doctor's parents, such a cute little girl, with a bar on her face, is indeed a bit uncomfortable. Don't worry, we will find a way to help cure it." Li Yuhong looked at the well-behaved and acceptable Zhou Meng and squinted her eyes. Said with a smile.

"Thank you Director Li."

"I'll take Zhou Meng to check first. The time can be longer, about four or five hours. If you have anything to do, you can go ahead and pick up Zhou Meng at that time." Li Yuhong explained.

"Ok."

After Zhou Meng was taken away, Liu Chi and Li Miao talked for a few minutes, then left, and planned to go out and visit again.

It is impossible to wait here for four or five hours.

And they are busy with things, but they don't have time to spend with them.

......

Some office.

"President, regarding Zhou Meng's case, I have arranged for Director Li Yuhong to preside over the treatment and try my best to cure it." Zhang Miao said.

"Is it worth it? Using such a large resource?" an old man next to him asked a little dissatisfied.

"Academician Chen, this matter was directly assigned. In fact, this case file is not only obtained by our hospital, but also by the University of Science and Technology, Xiehe, Yanjing Medical... as long as it is obtained by hospitals above the top three." Zhang Miao turned around. Explained to the boss.

"What???" The old man was stunned, a little unbelievable Zhang Miao, opened his mouth and finally said nothing.

"I don't know who Liu Chi is, but his identity is absolutely unusual. He has just arrived in three cars with the license plate number Jing V0002X, and the other two are 115116."

"If I guessed correctly, it should have been driven by the bodyguard."

"..." An inhalation sound sounded in the conference room.

"The background is hard?"

"It should not be."

"Okay, don't discuss it. This time it is the task arranged above. Go all out and cure the patient at all costs." The dean Wang Han, who had been silent at this time, interrupted the discussion directly.

"The Dean?"

"..." Several people in the conference room turned their puzzled eyes to Wang Han.

Wang Han looked around, staring at himself one by one. It seemed that he didn’t explain clearly. She just said, “That girl is only 18 years old. It’s a computer doctoral student from X Bridge University who just got her diploma. Immigrated, but she retained her nationality."

"She's only 18 years old?"

"At the age of 18, I was a PhD student in computer science at X Bridge University?" The old man was a little dumbfounded: "I still graduated? Such a genius?"

"Yes, she just got her graduation certificate and came back right away. It shows her patriotism. This is enough for us to try our best to cure others."

"sure?"

"determine!"

"Then I have no problem." The old man put away his previous thoughts.

Wang Han glanced at the old man, and finally said: "You are not in the science and technology world. I don't know the influence of Liu Chi. Because of the need for confidentiality, you don't need to know for now. If you want to compare it, his importance is above me. ."

"You heard the license plate that Dean Zhang said just now. This is the defense specification given above. It is his importance to the science and technology community, not his background."

"Understand." Hearing Zhang Han's words, two people who were dissatisfied were wiped out instantly.

"..."

Five hours later, Liu Chi returned to Kong X General Hospital on time.

"Dean Zhang, how is it?" Liu Chi looked at Zhang Miao holding the inspection report and looked at the happy Zhou Meng, with a spectrum in his heart, and asked.

"There is not much difference, and it is better than we thought. The successful cure rate is very high." Zhang Miao glanced at Zhou Meng and finally said to Liu Chi.

"Really?" Liu Chi's face flashed with joy.

"Ok!"

"That's great, the girl sees it, don't worry now, you can tie up your hair in the future." Liu Chi happily asked Zhou Meng.

"Hmm!" Zhou Meng's eyes started to show mist.

"Okay, I'm all grown-ups, want to cry? My sister-in-law is going to laugh at you later." Liu Chi made up for it, and directly stained Zhou Meng's face with pink powder, embarrassingly wanting to hit someone.

"Sister-in-law, look at Brother Chi bullying me again."

"I'll help you clean him up later." Ye Yuxin caressed the Qingsi of Meng next week: "Take a good cure, turn back my sister-in-law will take you to play."

"Thank you sister-in-law!"

"Dean Zhang, when do you think it is appropriate to start treatment? Is there anything we need to cooperate?" Liu Chi glanced at the two women who were whispering, and finally turned his eyes to Zhang Miao.

"You don't need to prepare anything, as long as you are ready, you can start treatment. Can you see if there is anything to deal with? After all, the treatment time will not be short."

"..." Liu Chi turned his head to Zhou Meng and said, "What about you girl, is there any problem?"

"No." Zhou Meng nodded straight.

"By the way, Dean Zhang, how long will this treatment take?"

"It depends on the recovery situation later, but it is conservatively estimated that the hospital stay will be about 15 days, and there should be a recovery period of about one month later, and you must come to the hospital for regular checkups." Zhang Miao thought about it.

"Zhou Meng, discuss with your parents tonight."

"Dean Zhang, what about the cost?" Ye Yuxin, who has not spoken, said.

"The cost is estimated to be quite high. You must be mentally prepared for this."

"?" Liu Chi turned his head and looked at Zhang Miao.

"It should be more than 500,000."

"So much?" Zhou Meng shrank her neck.

"It's okay." Ye Yuxin looked at Zhou Meng and said, "With your brother and sister-in-law here, you just need to take care of it."

"Ok."

Liu Chi communicated with Zhang Miao for half an hour, and decided to bring Zhou Meng to start treatment the day after tomorrow, leaving Zhou Meng to handle some personal matters tomorrow.

After confirming that there was no problem, Liu Chi took Ye Yuxin and Zhou Meng to leave.

In the evening, Zhou Meng hid in the bed and picked up her mobile phone to get through the phone of his mother Jiang Xueyue in Europe!

"mom!"

"Girl, miss my mother?" Jiang Xueyue asked with concern: "Are you used to it in China? Have you been wronged?"

"No, Brother Chi and sister-in-law are kind to me." Zhou Meng rolled over and hummed.

"That's good. Last time your dad said you lived directly at Liu Chi's house. Is it convenient?" Jiang Xueyue asked.

"Convenient, Brother Chi's parents recognize me as a daughter." Zhou Meng raised her neck and said proudly.

"That's good, just get used to it." Jiang Xueyue changed her conversation and said, "Is there no money?"

"Is there any."

"Really?"

"Yeah." Zhou Meng nodded and said, "Mom, let me tell you something."

"what's up?"

"Brother Chi helped me find a relationship and said that he could heal the scars on my face, and he would go for treatment the day after tomorrow. By that time, I may not be able to call you and dad for a long time."

"Can it really be cured?" Jiang Xueyue frowned.

"Really, Brother Chi took me for an examination today, saying that there is a high probability that it can be cured, more than 70%."

"Which hospital?"

"Empty X General Hospital." Zhou Meng said a little braggingly.

"Really? Where does Liu Chi have a relationship?"

"Really."

"The cost should be very expensive, right?" Jiang Xueyue added: "As long as you can heal your face, you don't need to worry about the cost of medical treatment, parents will find a way."

"Brother Chi has already helped solve the medical expenses."

"How can this be possible? Don't worry my parents will find a way. Originally, I wanted to wait another year for my parents to make enough money, and then let you be treated in Europe. I didn't expect you to go back to China now. "

"About 500,000 yuan, don't worry, this little money is drizzle to Brother Chi at all." Zhou Meng added, "Besides, I am his apprentice and younger sister. When I am cured, I will be Brother Chi's company is working."

"It's only 500,000?" Jiang Xueyue was taken aback, and then asked for a while: "Really? Only 500,000, you didn't lie to your mother."

"Well, what Dean Zhang said in front of Brother Chi, said it was about 500,000 yuan." Zhou Meng said affirmatively.