The leader is in a meeting, I need to ask him to sign, is it appropriate to send him a text message?

The leader is in a meeting and needs to ask him to sign and send him a text message, which I don't think is appropriate. It would be better to wait until he finishes the meeting and then go to the leader.

This time interruption will seem very untidy.

Whatever is the case, you should wait.

It's okay to go over as soon as the meeting is over.

Do this so that the leader will not be offended.

If you need to get a sign from your boss, it's best to avoid texting him during meetings as much as possible. Because leaders often need to focus on the content of the meeting when they are in a meeting, and it may not be convenient to be interrupted.

You can start by sending an email or message to your leader stating that you need to sign and attach the relevant documents. In the email or message, you can indicate the urgency or the date you need to sign so that the leader can handle it when he has time.

If you are very urgent, you can try to call the leader, or wait until the meeting is over to find the leader to explain the situation in person. But in any case, please try to respect the leader's work and schedule to avoid unnecessary troubles and misunderstandings.

Discharge cooling is another type of convection cooling. Unlike regenerative cooling, the coolant used for exhaust cooling absorbs heat to the thrust chamber and is discharged out of the combustion chamber instead of entering the combustion chamber to participate in combustion. Direct drain coolant reduces the thrust chamber specific impulse, so the coolant flow for drain cooling needs to be minimized while only using drain cooling at the outlet section of the nozzle that is relatively less heated.

There is also radiative cooling, in which the heat flow is transferred from the combustion products to the thrust chamber, and then the heat is radiated by the thrust chamber wall to the surrounding space. Radiative cooling is characterized by simplicity and small structural mass. It is mainly used in the extension section of large nozzles and the thrust chamber of small thrust engines using high-temperature resistant materials.

When cooling in the thrust chamber of the tissue, a relatively low temperature liquid or gas protective layer is established on the surface of the thrust chamber wall to reduce the heat flow to the thrust chamber wall, reduce the wall temperature, and achieve cooling. Internal cooling is mainly divided into three methods: internal cooling (shield cooling), membrane cooling and diaphoretic cooling of head tissues. After the internal cooling measures are adopted in the thrust chamber, the mixing ratio near the wall of the combustion chamber is different from the optimal mixing ratio in the central area (in most cases, the near-wall layer rich in fuel is used) due to the need to reduce the temperature of the protective layer, resulting in the uneven distribution of the mixing ratio along the cross-section of the combustion chamber, so that the combustion efficiency is reduced to a certain extent.

Membrane cooling is similar to shield cooling in that it cools the thrust chamber wall by establishing a uniform and stable coolant film or air film protective layer near the inner wall surface, except that the coolant used to establish the protective layer is not injected by the injector, but is supplied through a special cooling belt. The cooling band is generally arranged in a cross-section of the combustion chamber or the convergence section of the nozzle. There can be several cooling bands along the length of the combustion chamber.

In order to improve the stability of the membrane, the coolant often flows through the gaps or small holes in the cooling belts, and when sweating is used, the thrust chamber wall or part of the inner wall is made of porous material with a pore diameter of tens of microns. Porous materials are usually sintered with metal powders or pressed with metal mesh. In this case, the number of pores per unit area is increased by making the micropores in the material as evenly distributed as possible.

The liquid coolant penetrates into the inner wall, creating a protective film that reduces the density of the heat transferred to the wall. When the flow rate of liquid coolant used for sweat cooling is above a certain threshold, a liquid film is formed near the wall of the thrust chamber. When the coolant flow rate is below the critical flow, the inner wall temperature will be higher than the coolant boiling point at the current pressure, and some or all of the coolant will evaporate, forming an air film.

In addition to the above thermal protection, there are other thermal protection methods such as: ablation cooling, thermal insulation cooling, hot melt cooling and composite protection of chamber walls. 3. Thermal protection scheme of high enthalpy gas generator Based on the above methods and the actual situation, the thermal protection method of high enthalpy gas generator is obtained.

The combustion chamber of a high-enthalpy gas generator differs from that of a liquid rocket engine, eliminating the front thrust chamber part, making its structure simpler and more effective. Then, the thermal protection involved is the thermal protection part of the combustion chamber wall. As the fuel enters the combustion chamber, it quickly decomposes and releases large quantities.

Find the leader to sign, and the leader has been absent and can send a text message. It depends on whether the matter is important and urgent. Non-important and non-urgent things and wait for the leader to come back and then sign, it is generally not recommended to urge the leader, the leader will be unhappy, if it is an important and urgent matter, you can call ** send a text message to ask the leader, the leader is generally aware of this kind of thing, will ** instructions or authorize the next level of leadership to sign.

Unspoken rules for leader signing: If the leader signs horizontally, it means "you can put it aside"; If it is signed vertically, it must be "done to the end"; If there is a solid full stop after "agree", it means that the matter must be done "wholeheartedly"; If you order a hollow period, you can't do it 100 percent.

Hello, you can message like this. Hello. Boss, I'm so-and-so in the company, and now I'm looking for you to sign a contract. Sign it for me if you see it's convenient. That's how we send messages in the workplace.

Dear Leaders:

I'm a student in such and such a class, or I'm an employee in some department. Today I have something to go home to deal with because I have something at home.

I hereby ask for your leave of absence and I hope that you will approve it.

Find the leader to sign, you can send a message like this, leader, do you have time now? I have a document that you need to sign. If I have time, I'll go to your office.

If you want to find the leader to sign, you can send a message or call him to make things clear.

Find the leader to sign, this is the normal work process, to tell the truth, after communicating with the leader, go to his office and ask him to sign.