Seek an explanation of psi in terms of the environment

It depends on what it refers to.

Different conditions represent different things.

12psi at an atmosphere should be fine.

12 psi in a nuclear explosion indicates extinction and is generally not viable.

The PSI inspection time is after the goods are ready and before the shipment.

The location of the PSI inspection, according to the actual situation, can be in the production plant, warehouse, container station, etc., if there is a supervision of the packing requirements, it should be carried out at the packing location.

The content of psi inspection varies according to the requirements of the importing country, generally according to the letter of credit, proforma invoice, contract, etc., to inspect the quality, specifications, quantity, weight, packaging, and shipping marks of the goods.

The PSI inspection agency varies according to the regulations of the importing country, and the basic requirements are internationally recognized inspection and appraisal institutions, commonly used are CCC, BV, SGS, etc.

The cost of PSI inspection is determined according to the type, quantity, testing items, inspection labor days, and value of the goods. Generally, it is calculated according to the inspection labor day (such as packing time), 200-400 US dollars per labor day, and the value of the goods is high, but it can also be charged according to two to five thousandths of the value of the goods, and the calculation result is higher.

The process of PSI inspection is generally that the importer first applies to the relevant departments of the importing country (such as the financial and banking departments) and the international inspection agency in the importing country, and then the inspection instruction will be transferred to the branch of the international inspection agency in the exporting country, and the inspection agency will contact the exporter to confirm the inspection time.

1psi=6895pa

1psi = =, 1mpa = 1000000 pa, so 1 psi = 6895 pa.

The United States is accustomed to using psi as a unit, which means pound-force square inch. Swap all the units for metric units: 1bar.

Generally, all kinds of standard pressure gauges and general pressure measuring devices in China have MPA and PSI two kinds of identification. In China, we generally describe the pressure of a gas as "kilogram" (not "jin"), and its unit is "kgf cm2", and one kilogram of pressure is a kilogram of force acting on a square centimeter.

In Europe, MPA is used in the same way as in China, while in the United States, the commonly used unit is "psi", and the specific unit is "lb in2", which is "pound square inch".

Barometric Pressure Unit Conversion:

mpa=1000

kpa；1kpa=1000pa

Standard atmospheric pressure =

Standard atmospheric pressure = 1 kg pressure = 100kPa = 1bar mmhg = Pa).

mmH2O = 10 Pa (Pa).

kpa=1000pa=100mmH2O(mmWater bar=1000mbarmbar=

Pressure 1 bar = 105 Pa 1 dyne Centimeter 2 (dyn cm2) = Pa (Pa).

1 Torr = Pa (Pa) 1 millimeter Hg (mmHg) = Pa (Pa) 1 mm water column (MMH2O) = Pa (Pa) 1 engineering atmospheric pressure = kiloPa (kpa) 1 kiloPa (kpa) = pound-force Inch2 (psi) = kilogram-force centimeter2 (kgf cm2).

Atmospheric pressure (atm).

1 lbf: inch2 (psi) = kilopascal (kpa) = kilogram-force cm2 (kg cm2).

Bar = Atmospheric Pressure (atm).

1 Physical Atmosphere (atm) = kilopascals (kpa) = pounds Inch2 (psi) = bar (bar).

GEMS-psi cement.

BAI Chemical Thermodynamic Simulation DU Software.

The main content is to study the "chemical DAO reaction heat" with the first law of thermodynamics

back to the question. In a chemical reaction, the heat absorbed by a mole of change in a substance (referring to the main product or reactant) is called the heat of chemical reaction, which is referred to as the heat of reaction. According to the first law of thermodynamics, the heat of reaction QP (or QP) of a chemical reaction that occurs at a constant temperature and pressure (or volume) is equal to the change in enthalpy (or internal energy) of the reaction process ΔH (or ΔU).

So equation f0 (1) is the basic thermodynamic formula in thermochemistry. Using the properties of the state functions u and h, it is possible to calculate the unknown heat of reaction from some known heat of reaction.

It's not that Intel or AMD's new seventh-generation CPU doesn't support Win7, but because Intel's latest sixth-generation (100 series) and seventh-generation (200 series) motherboards and AMD's new 300 series motherboards use the XHCI main control interface on the chipset, when the XHCI parameter is set to open in the BIOS, the keyboard and mouse will fail in the middle of installing the Win7 system, because the native Win7 system does not contain the driver, Therefore, it is not possible to boot on the device using the USB flash drive.

For the new CPU,The main thing is for the new motherboard does not support win7The problem,There are many solutions circulating on the Internet,The method to be said below,It can't be said to be the simplest,But it's also more practical。 The principle is very simple, that is, first make an original system boot USB flash drive, and then import the driver into it, so that you can install the system on the latest motherboard.

Because the official explanation is that win7 has stopped updating, a lot of new processor technical support.

Imperfect. This time, the latest architecture of the Kaby Lake Intel processor also intends to force everyone to replace the win10 system system, the CPU using the non-win10 system kaby lake architecture will not be supported, which intel official has recently said hello to you in advance! That is to say, there is 100% performance, but it may be discounted to less than 50%, and even only basic work will not recognize the model.

Don't think it's impossible, most non-professional users, may only know WindowsXP, do not know that there is a Windows2000 system, Microsoft in absorbing the many advantages of the Win2000 system, successfully launched the WinXP system, XP system with the original Win2000 architecture strong stability of more than 10 years of glory, and is still favored by many people.

But you may not know that before 2006, most of the computer's CPU was single-core, except for AMD at that time, in 2007, Intel launched the first batch of dual-core CPU, Microsoft only released a dual-core patch for WinXP, and did not provide a dual-core patch for the Win2000 system, and the same CPU will not be recognized under the Win2000 system.

Let's take a recent example, many people know that Intel's i3, i5, and i7 all come with their own core graphics cards, but not necessarily many people know that these core graphics cards must be in win7 or above to have Microsoft drivers! On WinXP systems, these core graphics cards are not recognized directly.

Also known as "compact board", it is made of decorative colored paper impregnated with melamine resin, coupled with multiple layers of black or brown kraft paper impregnated with phenolic resin, and then pressed with steel plate by high temperature (150) and high pressure (1430psi) environment, with a thickness of up to 25mm. It is a kind of high-pressure decorative board with a transparent structure, and the color paper layer on the surface can not only meet a variety of color options, but also provide the decoration needs of "glossy surface, pearl suede, micro star surface, rhombic pattern, checkered pattern, and flying snow meteor".