Production and marketing constraints of dairy farmers in Son La milk value chain, Vietnam

peer reviewedRural livelihood augmentation has long been a crucial challenge for the effectiveness of Vietnamese government policies in agricultural sector. Despite the amazing fact that farmers’ participation in the dairy value chain has promised the better outcome, there are still millions of rural farmer households struggling against the inefficient production and marketing, and decline with hope of improving their main source of income. Plus the extreme price volatility and the market power of downstream actors, rural dairy farmers with small-scale production have verged to the edge of selling up the whole supply chain. This paper attempted to analyze the production and marketing constraints faced by the local dairy farmers in the milk value chain of Northern mountainous Sonla provinces of Vietnam. The Pearson’s chi-square test was employed to assess the statistical significance of farmer’s responses across the study sites. The results of the study revealed farmers produce and different marketing different qualities of milk to two main buyers under the constraints of high input prices, feed scarcity, exploitation by downstream actors, capital investment inadequacy, inadequate poor market information and knowledge, lack of technical support from dairy manufacturer and local authority, land limit, and cow diseases

The Impact of Globalization, Gender Development and Exports on Economic Growth : An Empirical Study in Viet Nam

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Improved Sensor Fault-Tolerant Control Technique Applied to Three-Phase Induction Motor Drive

An improved fault-tolerant control (FTC) method using mathematical functions is applied to the induction motor drive (IMD) against current sensors and speed encoder failures, which occur when the sensor is disconnected or completely damaged. The IMD with two current sensors and an encoder is speed controlled based on the field-oriented control (FOC) technique in regular operation. In this paper, an FTC unit is implemented in the FOC controller to detect and solve the sensor fault to increase the reliability of the speed control process. The measured stator currents and the feedback speed signal are integrated into the diagnosis algorithms to create a sensor fault-tolerant control function. Three diagnosis functions operating in a defined sequence are proposed for determining the health status of current and speed sensors. The FTC function performs isolation and replaces the faulty sensor signals with the proper estimated signals; then, the IMD will operate in the corresponding sensorless mode. Simulations will be performed to verify the accuracy and reliability of the proposed method under various sensor faults

Sensor fault diagnosis technique applied to three-phase induction motor drive

This paper conducts research on sensor fault diagnosis for a three-phase induction motor drive (IMD) in steady-state operation. An improving diagnostic technique based on the integration algorithm of the sinusoidal current signal is proposed for detecting and locating faulty current sensors in the induction motor drive. The IMD integrated a proposed fault detection-isolation (FDI) system is investigated for operating characteristics when sensor failures occur. The faulty sensor needs to be accurately identified and quickly isolated from the control system. Then the estimated signal will be used to replace the fault signal to retain the IMD stability. MATLAB/Simulink software will be applied to simulate the speed-torque characteristics of the IMD system as well as sensor failures occurring during operation. The performance of the proposed method will be evaluated through the accuracy and timeliness in each fault case corresponding to each sensor

Empirical Analysis on Factors of Enterprise Competitiveness: A Case Study for Small and Medium-Sized Enterprises in Northern Rural Areas of Vietnam

This paper attempted to analyze the competitiveness of small and medium-sized enterprises in northern rural areas of Vietnam under the globalization. By using “Resource Cost Ratio” (RCR coefficient), analysis was conducted at enterprise level to identify evidence of competitive advantages. In order to question which has the most influence on the enterprise’s competitiveness, the relationship between RCR and each contributed factor  were quantified. The results of the study revealed no case of competitive enterprises in 2008. Enterprises from Hanoi were less competitive than those from other provinces. Service enterprises were more competitive than the others according to the business sector. In terms of legal form, the more competitive enterprises were the private, state-owned, and limited liability and the less were foreign-invested and joint-stock enterprises. The positive influence of sales of products, revenue losses, and cost of land rent and the negative influence of raw material and energy cost mostly caused the change of the RCR coefficient. The recommendations to enhance competitiveness were the government should abrogate unnecessary formalities in land hiring procedure and the enterprises should adopt advanced marketing practices and upgrade production facilities.Key words: Competitiveness; Resource cost ratio (RCR); Small and medium-sized enterprises (SMEs

Equitability in Access to Rural Public Services in Vietnam: An Outlook from the Red River Delta

In the transition to a market oriented economy, rural public services in Vietnam are moving towards decentralization. public service users now have to pay for service fees, instead of an existing provision where the services were provided at no cost. This paper attempts to answer the questions of how people in rural areas in Vietnam receive services provided by government institutions with respect to their contributions to the government budget, and, how equitability in benefiting rural public services in different groups of people is explored. This will be done by looking closer at basic public services (i.e., education and healthcare) in the Red River Delta, a dynamic and prioritized economic region in Northern Vietnam. It is considered an area with well-equipped public services compared to other rural areas in Vietnam. The empirical findings from the public services in the Red River Delta are good policy implications for those in other rural areas in Vietnam.Key words: Rural public services; Accessibility; Equity; Red River Delta; Vietna

Innovations in Water Management for Sustainable Development of Higher Education Institutions: Experience from Ton Duc Thang University, Vietnam

Ton Duc Thang University (TDTU), which was established in 1997, is a fully autonomous public university in Vietnam. After over 22 years of development, TDTU is now the number one university in Vietnam for all aspects. In 2019, TDTU was ranked the 1st in Vietnam and ranked 165th in the world on sustainable development by UI GreenMetric World University Rankings (UI GreenMetric). Among six categories of UI GreenMetric, including: setting and infrastructure, energy and climate change, waste, water, transport, and education, the water category of TDTU achieved 725 points out of 1000 maximum points (72.50%). This paper presents water management of TDTU, focusing on water conservation, water recycling, the use of water efficient appliances and piped water consumption. Specifically, the paper highlights innovations in water management that TDTU has implemented during the past few years. The paper concludes that sustainable water management makes great contribution to sustainable development of a higher education institutio