Factors Affecting the Choice of Supermarket for Shopping by Consumers in Hanoi Capital in Vietnam

In recent years, the Vietnam's economy has been growing, the demand for shopping and consumption of Vietnamese people has been sharply increased. The boom of branded and prestigious supermarket chains in the market such as Big C, Mobile World, Vinmart, or new retailers entering the organized retail market (supermarkets) in Vietnam has partly met the shopping needs of Vietnamese people. The authors select the scope of the study is Hanoi capital to identify and measure the factors that influence consumers' decisions to choose a shopping supermarket. Through qualitative and quantitative analysis, the research results show that there are 07 factors that influence the consumer's decision of choosing supermarkets to buy goods in Hanoi capital, which are the goods, prices, Convenience, reliability, supermarket staff, communication marketing and shopping environment. In particular, goods have the biggest influence on the consumer's decision choosing the supermarkets to buy in Hanoi, Vietnams. Keywords: Consumers; Supermarket; Consumer behavior DOI: 10.7176/EJBM/12-3-06 Publication date: January 31st 202

Analysis of the Lagging Time of Employment Structure in Vietnam

If any country’s or region's employment structure lags behind the industrial structure adjustment, which shows that the two structures are not developing in coordination. However, the deviation degree of structure is mainly the imbalance between industrial structure and employment structure. The lag refers to the degree to which the employment structure lags behind the industrial structure in the time dimension, and when the relationship between industrial structure and employment structure is measured in terms of time. Employment lags behind time over a long horizon which in turn causes serious unemployment, and affect industrial structure adjustment and upgrade. The study construct an analysis model for the lag time of the employment structure and provide findings that will resolve the incompatible state of the two structures, and promote the healthy development of industrial structure and employment structure in Vietnam. Through the research conclusion it is revealed that, after three years, the effects of industrial structure adjustment fully reflected the change of employment structure in Vietnam. Keywords: Lagging Time; Employment Structure; Vietna

Magnitude of Annual Soil Loss from a Hilly Cultivated Slope in Northern Vietnam and Evaluation of Factors Controlling Water Erosion

A soil erosion experiment was conducted in northern Vietnam over three rainy seasons to clarify the magnitude of soil loss and factors controlling water erosion. The plot had a low (8%) or medium (14.5%) slope with land-cover of cassava or morning glory or being bare. Annual soil loss (177 to 2,361 g/m2) was a tolerable level in all low-slope plots but was not in some medium-slope plots. The effects of slope gradient and seasonal rainfall on the mean daily soil loss of the season were confirmed, but the effect of land-cover was not, owing to the small canopy cover ratio or leaf area index during the season. The very high annual soil loss (>2,200 g/m2) observed in the first year of some medium-slope plots was the site-specific effect from initial land preparation. Since the site-specific effect was large, the preparation must be done carefully on the slope

On tracking control problem for polysolenoid motor model predictive approach

The Polysolenoid Linear Motor (PLM) have been playing a crucial role in many industrial aspects due to its functions, in which a straight motion is provided directly without mediate mechanical actuators. Recently, with several commons on mathematic model, some control methods for PLM based on Rotational Motor have been applied, but position, velocity and current constraints which are important in real systems have been ignored. In this paper, position tracking control problem for PLM was considered under state-independent disturbances via min-max model predictive control. The proposed controller forces tracking position errors converge to small region of origin and satisfies state including position, velocity and currents constraints. Further, a numerical simulation was implemented to validate the performance of the proposed controller