Many countries and researchers are interested in load forecasting due to its significance. The results of load forecasting are an indispensable basis for electricity planning and investment plan for the power system in the future. In addition, short-term load forecasting is also a mandatory requirement in proactively developing business and system operation plan of units in power sector. When the SARIMA(p,d,q)(P,D,Q)S model is used for load forecasting in Hanoi, the results ensure forecast accuracy, feasibility of available data as well as the software's ease of use. SARIMA model can also be used in load forecasting in other provinces and cities in Vietnam or used for electricity forecasting. With the research sample from 2019 to 2021, the model SARIMA(0,1,6)(0.1,1)24 and (0,1,7)(0.1,1) 24 are used for short-term load forecasting in term of typical working day and day-off in Hanoi.

Lean Manufacturing is a popular method to achieve the improvement on productivity, quality, cost, and delivery for organizations. This approach focuses on the systematics to eliminate wastes and non-value added activities from the production. This study mentions the successes and challenges of Vietnam manufacturing enterprises for adapting and transformation for Lean Manufacturing approaching. The aim of this study is to analyze the characteristics of Vietnam enterprises that influencing Lean outcome and present critical factors for overcoming obstacles to successful Lean implementation in Vietnam local enterprises. This paper uses case-based research to collect data through multiple cases that applied Lean to drive the findings. A combination of comprehensive literature review and interview key persons at case study was employed in this study. This study also highlights the strong potential of Lean implementation initiatives in affecting organizational performance improvements.

Kaizen has long been known as an improvement philosophy that starts with small frequent changes to make larger changes in production. These changes come from the ideas and creative thinking of employees to ensure that the production conditions and processes are continuously improved. However, Kaizen not only helps motivate employees to think creatively with effective methods and skills, but it also helps them develop their capabilities, personality, and good work habits. The purpose of this paper is to show a new approach to human resources quality improvement through the Kaizen philosophy as a sustainable and active strategy to improve work performance. With analytical research on the relationship between Kaizen implementation, human resources quality improvement, and production efficiency and exploratory research on particular cases in manufacturing enterprises in Vietnam, the authors point out changes in production efficiency and human capacity before and after implementing improvement (Kaizen) projects. The paper finds significant changes of employee capability (Kaizen practitioners) after evaluating the human resource development process on the basis of six indicators of two groups (namely capacity development, personality development) and a set of criteria using a 5-point scale. In addition, the paper proposes a PDCA based framework with 12 contents corresponding to stages of the human resource development. This paper extends theories related to Lean Manufacturing or Kaizen, highlighting how philosophy of Kaizen has hard and soft impacts on the improvement of performance and human resources.

Lean is one of the systematic approach to achieve higher value for organizations through eliminate non-value-added activities. It is an integrated set of tools, techniques, and principles designed to optimize cost, quality and delivery while improving safety. In Vietnam, industry waste management and treatment has become serious issue. The aim of this research is to present the effective of Lean application for industrial wastes collecting and delivery improvement. Through a case study, this paper showed the way of Lean tools and principles applied for wastes management and treatment such as Value Stream Mapping, Pull system, Visual Control, and Andon to get benefit on both economic and environment. In addition, the results introduced a good experience for enterprises in Vietnam and other countries have similar conditions to Vietnam in cost saving and sustainable development in waste management.

Although Lean has been known and applied in both theoretical and practical on around the world for many years,a deeper understanding of Lean tools, principles implementation, anda roadmap to successfully apply is needed. In the context of Small and medium enterprises (SME), it is very difficult for local enterprises to apply synchronization Lean tools, techniques, and principles because of limited resources in manpower, technology, and management capability. Through the case-based study, this paper proposed the four-phase roadmap for Lean application in SMEs. An analysis of methods froma literature review of Lean implementation was conducted in order to identify the phases of the roadmap. Then, six SMEs in Vietnam that applied Lean were chosen to collect data and analyze the applicability and how Lean tools are successful implemented in the cases to confirm the findings.