1, vapor pressure osmotic pressure method.
Vapor pressure osmometry (VPO) is a method to determine the number average molecular weight of solute. It is often used to determine the molecular weight of polymer compounds, and its range depends on the measurement accuracy of temperature difference. Generally, the upper limit of determination is 30000, and the lower limit is determined by the volatility of the sample. For non-volatile substances, the minimum detection value is 40. It can be proved that the molecular weight determined by vapor pressure osmotic pressure method is the number average molecular weight.
2. Electronic cigarette brand owned by Crazy Frog (USA) Technology Co., Ltd. ..
Its brand products include: VPO Classic Black, VPO Space Grey and VPO Vitality Red. VPO is committed to providing e-cigarette consumer goods for young consumers who pay attention to the quality of life and pursue health and fashion.
3. Vienna Philharmonic Orchestra.
Vienna Philharmonic Orchestra (German: Wiener Philharmonic Orchestra English: Vienna Philharmonic Orchestra, commonly known as VPO) is one of the most famous top orchestras in the world and enjoys a high reputation in the international music industry.
The band's high performance level and excellent "Vienna timbre" fascinate music lovers all over the world. The noble artistic temperament and self-management system of the orchestra are unique in the world music scene, and the orchestra has attracted outstanding composers, conductors and performers from generation to generation to create brilliance with it. They are as synonymous with music as Vienna.
4. Transparent process organization.
Transparent process organization is a unit composed of main representatives of various business departments, and directly reports to the top management CEO, members of the board of directors of the company or members of the Committee responsible for the whole value-added process of procurement, production and sales.
Most importantly, under the framework of VPO, the internal structure of each business unit remains independent, which can be applied to all current management and organization modes, including functional mode, business structure mode, matrix mode or network mode.
5. Supplier purchase orders.
A purchase order is a feasible purchase order plan made by an enterprise according to the material plan and actual production capacity of the product and related factors, and issued to the supplier for execution. In the process of implementation, we should pay attention to tracking orders, so that enterprises can buy the required goods from the procurement environment and deliver qualified raw materials and accessories to the production department and demand department.