Recently, there has been renewed interest in the American labor shortage of supply chains. Several studies have documented the labor shortages of the supply chain across the whole industry. However, different reasons and impacts of labor shortages divided specifically into skilled and unskilled workers have not yet to be understood. This study reports on the causes of American labor shortage of skilled and unskilled workers from different perspectives, and the different impacts on the supply chain. A combined qualitative and quantitative methodological approach was used to find and analyze the factors. The finding shows the causes of labor shortages are different between skilled and unskilled workers, each impact of which on the supply chain also differs. The study implies the importance of considering skilled workers and unskilled workers separately to solve the problems of labor shortage in the supply chain. The findings can contribute to a better understanding of labor shortage in the supply chain for two different workers.
Keywords:labor shortage,supply chain,American worker
1.INTRODUCTIONBased on the definition of skilled [1] and unskilled [2] labor, skilled workers are those who have the expertise to perform more complex mental work than regular work, while unskilled workers are those who perform physical work that does not require specialized knowledge. The impact and reasons for both are really different. For skilled labor, although the epidemic made it unlikely for them to work in companies, they can still work from home. However, for unskilled labor, they have to work outside at risk. The population in the US has not shrunk since 2020. So the basic reason for the labor shortage is that people are not willing to go out to work [3]. This paper will focus on the different circumstances skilled and unskilled labor be faced with, find the cause of labor shortage and describe the impact of labor shortage on the supply chain.
The cigarette shape detection system of cigarette machine is to online detect the unqualified cigarettes with warping, paper sticking, flattening and mouth burst in the high-speed flow cigarettes on the production line, and eliminate them in real time to ensure the product quality of finished cigarettes. At present, the photoelectric technology is adopted for the cigarette shape detection sensor, and the output signal range is analog quantity within 0-15Vdc. According to the field installation error, sensor difference and attenuation in use, the front and rear signal ranges are inconsistent. Corresponding modules are required to adjust the reference voltage and magnification of the front and rear channels and output standard 0-10vdc analog quantity. The current module is installed under the max detection wheel and adjusted through the general potentiometer of the internal circuit board. It is independent of the quality detection system and is far away from the MLP man-machine interface of the quality data display. Therefore, the adjustment process is very inconvenient, the device improves the calibration intelligent level of this part, forms a closed loop with the quality detection system, improves the adjustment accuracy, prolongs the service life, improves the staff work efficiency and facilitates the staff operation.
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