Natural-gas fueled spark-ignition (SI) and compression-ignition (CI) engine performance and emissions

Experimental investigation on the combustion and exhaust emission characteristics of biogas–biodiesel dual-fuel combustion in a CI engine

This review is a summary of different aspects of the design and operation of small-scale, household, biogas digesters. It covers different digester designs and materials used for construction, important operating parameters such as pH, temperature, substrate, and loading rate, applications of the biogas, the government policies concerning the use of household digesters, and the social and environmental effects of the digesters. Biogas is a value-added product of anaerobic digestion of organic compounds. Biogas production depends on different factors including: pH, temperature, substrate, loading rate, hydraulic retention time (HRT), C/N ratio, and mixing. Household digesters are cheap, easy to handle, and reduce the amount of organic household waste. The size of these digesters varies between 1 and 150 m 3 . The common designs include fixed dome, floating drum, and plug flow type. Biogas and fertilizer obtained at the end of anaerobic digestion could be used for cooking, lighting, and electricity.

https://www.mdpi.com/1996-1073/5/8/2911/pdf

Household Biogas Digesters—A Review

Effect of compression ratio on performance, combustion and emission characteristics of a dual fuel diesel engine run on raw biogas

An experimental study of the biogas-diesel HCCI mode of engine operation

Study on biogas premixed charge diesel dual fuelled engine

Performance evaluation and comparison of different ad hoc routing protocols





Purpose: The research objective of this article is to approach the diverse situations of commercial banks in Vietnam in examining employee engagement in order to create effective employee classes in performing tasks. This, in turn, ensures the stability in growth and creates a proud and traditional organizational culture.
 
Theoretical framework: The study has reviewed and selected the core contents of previously published studies globally to come up with its own research framework with Employee Engagement latent variable as the center, and other 7 main observed variables. At the same time, the study uses two groups of latent variables, JS and EA, respectively, to refer to job satisfaction and external attractive factors for employees of commercial banks in Vietnam.
 
Design/methodology/approach: Research designed in an inductive manner. However, conducting the research through a mixed method is still necessary for better conclusions. The author approached some typical commercial banks at once (also called, the meta-case approach, which includes the traditional approaches to Multiple Regression analysis and new assumptions in the approach, along with SEM-CB analysis).
 
Findings: Research has shown a relationship between the latent variables, Employee Engagement, Job Satisfaction and External Appeals. The correlation between variables in assumed cases show the importance of different groups of factors affecting the ultimate goal of the human resource management process in commercial banks. It is the loyalty to the organization of the employees. In particular, the outstanding factors that can be further analyzed are Promotion opportunities, Moral standards ​​and Organizational brand.
 
Research, Practical & Social implications: The study is a good reference for the system of commercial banks, especially with the unique characteristics of commercial banks in Vietnam. In addition, having loyal employees creates enduring businesses.
 
Originality/value: The research has been conducted by the author, ensuring standards of research and ethical factors in publication. It contributes additional material to specialized research in Management, Human Resources and Business in general.





/pdf/employee-engagement-in-finance-banking-organizations-in-2cge9syo.pdf

Employee Engagement in Finance - Banking Organizations in Vietnam: a Meta-Case Approach

Structured abstract - Creating a breakthrough for China's national strength on the basis of prioritizing science and technology development is a particular and important aspect of China's development orientation in the context of the Industry 4.0. These have intrigued the authors in the research that the policies for building China’s socioeconomic national strengths should be studied thoroughly. 
  
Purpose: The Central Leading Group for Cybersecurity and Informatization and Central Cyberspace Affairs Commission’s operations and their effectiveness should be studied thoroughly to know more about the national strengths of China.  
  
Method/design/approach: This study has been conducted in qualitative approaches. The research is largely based on the documentary method and the observation method of the Communist Party of China in order to assess the strategic direction of the country's socio-economic development. 
  
Results and conclusion: The development of science and technology has also been identified by Chinese leaders as an important strategic issue related to national development and security. The development level of science and technology, especially achievements in the high-tech field, has become a fundamental foundation for China's national strength contemporarily. However, one of China's major weaknesses also lies in the high-tech field, while the country has not mastered a number of core technologies. The Chinese number of patents is large but the quality is not corresponding. 
  
Research implications: Among the major findings, the United States and its allies have recognized the competitive threats of China's reforms and breakthroughs in science and technology recently. Since then, there have been drastic countermeasures, turning the high-tech into a front line in the strategic competition with China. 
  
Originality/value: This can be explained by the fact that methodical, synchronous, and focused institutions and policies, supported by huge financial resources, are helping China transform strongly from a "follower" to a "frontier" country, even being a "pioneering" in science and technology globally.

/pdf/chinas-national-socioeconomic-strength-in-science-and-3ddz9i3z.pdf

China’s National Socioeconomic Strength in Science and Technology Development

In Vietnam, among 10 biggest economic groups (SEGs), four representatives, which are Viettel, Mobifone (belonged to VNPT in the period 1994-2016), Bao Viet Insurance (belonging to Bao Viet Group), Petroleum Insurance (belonging to PVN Group), have been ranked in the top list of 100 most desired employers in the market by Anphabe. This means that the working environment at the parent company or some subsidiaries of these four groups retains good employees and constantly attracts new talents to join. However, with the great potential and incentives on resources received from the Government, the business performance indicators of those State Economic Groups are not really commensurate. The root of the problem lies in the motivation of the workers. Also, the picture of corporate social responsibility is also much more energetic when the business situation of the groups becomes positive. When international partners and importers require Vietnamese enterprises to comply with global standards on occupational safety, worker health care, and environmental protection, Vietnamese enterprises will have stronger motivation to change and improve their performance, which means increased competitive advantage in the globally integrated environment. Therefore, this paper focuses on the relationship between CSR and the process of motivating employees to suggest new and more groundbreaking research directions on this issue in the future. This study is one of very few studies which have examined the potential relationship between Corporate Social Responsibility and Employee Motivation, with a look from the inside of the company towards the outside connection with society, communities and the customers. The effects can be imposed in back-and-forth directions between CSR and Employee Motivation activities of the company.

/pdf/corporate-social-responsibility-through-motivating-employees-2dh0bvk7.pdf

Phan Minh Duc

Papers

Study on biogas premixed charge diesel dual fuelled engine

Performance evaluation and comparison of different ad hoc routing protocols

Employee Engagement in Finance - Banking Organizations in Vietnam: a Meta-Case Approach

China’s National Socioeconomic Strength in Science and Technology Development

Corporate social responsibility through motivating employees in typical state-owned economic groups in vietnam