The linear span of projections in AH algebras and for inclusions of C*-algebras

A $C^*$-algebra is said to have the LP property if the linear span of projections is dense in a given algebra. In the first part of this paper, we show that an AH algebra $A = \underrightarrow{\lim}(A_i,\phi_i)$ has the LP property if and only if every real-valued continuous function on the spectrum of $A_i$ (as an element of $A_i$ via the non-unital embedding) belongs to the closure of the linear span of projections in $A$. As a consequence, a diagonal AH-algebra has the LP property if it has small eigenvalue variation. The second contribution of this paper is that for an inclusion of unital $C^*$-algebras $P \subset A$ with a finite Watatani Index, if a faithful conditional expectation $E\colon A \rightarrow P$ has the Rokhlin property in the sense of Osaka and Teruya, then $P$ has the LP property under the condition $A$ has the LP property. As an application, let $A$ be a simple unital $C^*$-algebra with the LP property, $G$ a finite group and $\alpha$ an action of $G$ onto $\mathrm{Aut}(A)$. If $\alpha$ has the Rokhlin property in the sense of Izumi, then the fixed point algebra $A^G$ and the crossed product algebra $A \rtimes_\alpha G$ have the LP property. We also point out that there is a symmetry on CAR algebra, which is constructed by Elliott, such that its fixed point algebra does not have the LP property.Comment: 24 page

THE THIRD MISSION OF UNIVERSITIES: CONSTRAINTS AND POLICY RECOMMENDATIONS FOR THE CASE OF VIETNAM

This article researches current practices of several Vietnamese universities to fulfill their third mission. Analyzing results of major activities (such as technology transfer, research commercialization, and entrepreneurship) in 9 universities in the North of Vietnam from 2013 to 2018, the article identifies the limitations and suggests a number of governance policies to support universities in fulfilling their third mission in Vietnam’s current context.   Keywords: Third Mission, University, Entrepreneurial University, Technology Transfer, Commercialization

Piezoresistive effect of p-type single crystalline 3C-SiC on (111) plane

This paper presents for the first time the effect of strain on the electrical conductivity of p-type single crystalline 3C-SiC grown on a Si (111) substrate. 3C-SiC thin film was epitaxially formed on a Si (111) substrate using the low pressure chemical vapor deposition process. The piezoresistive effect of the grown film was investigated using the bending beam method. The average longitudinal gauge factor of the p-type single crystalline 3C-SiC was found to be around 11 and isotropic in the (111) plane. This gauge factor is 3 times smaller than that in a p-type 3C-SiC (100) plane. This reduction of the gauge factor was attributed to the high density of defects in the grown 3C-SiC (111) film. Nevertheless, the gauge factor of the p-type 3C-SiC (111) film is still approximately 5 times higher than that in most metals, indicating its potential for niche mechanical sensing applications

Tri-generation and combined cycles: thermodynamic analysis of prime movers in standalone and hybrid configurations

The global movement towards lower carbon economies and distributed energy requires the realisation of improved energy generation methods. Tri-generation is a method of optimising the thermal efficiency of energy generation through waste heat recapturing and can simultaneously provide heating, cooling and electrical output to meet building energy demands. A meta-analysis was conducted to analyse the performance of various prime movers utilised in tri-generation applications. Through this study it was determined that the efficiency of tri-generation and combined cycles can be optimised through a hybridisation of prime movers

An Analysis of Value Chain in the Vietnam Construction Industry

A value chain in construction industry is implemented to ensure that a construction project is successful from the planning stages, all the way to the completed and approved building. Therefore, it is important to utilize a construction value chain because it ensures that the project delivers the maximum value for the least amount of capital. However, value chain analysis in the construction industry is little understood. The present study aims to analyze the status quo for the construction value chain in Vietnam. The findings indicated that there are three primary parts of the Vietnam construction value chain. The analysis results indicated that there are three primary parts of the Vietnam construction value chain which includes: (1) input factors (i.e., labors, materials, and machines); (2) construction processes (i.e., design, bidding, foundation construction, structural construction, and finishing works); (3) construction markets (i.e., civil construction market, industrial construction, infrastructure construction). The outcomes illustrated a comprehensive picture in the Vietnam construction value chain and build a strong platform to implement better appropriate tasks towards improving sustainable competitive advantages in the construction industry

Impacts of Microfinance Activities on Social Capital Development Regarding the Relationships between Members of Village Savings and Loans Associations

The study indicated impact of microfinance activities with Village Savings and Loans Associations (VSLAs) to community’s social capital development. Based on the responds of 356 members have been participating in the VSLAs (questionnaire and in-depth interviews), there has been a progression in social capital regarding members’ relationships proving the changes in members and their social relationship as well as the trust among them after joining the VSLAs. One of the unique and significant findings was the different ways and levels of trust among the members. The important of this finding is it emphasized how the social impact can effectively benefit the subjects of social welfare policies. The study also proposed solutions to promote the activities of VSLAs and develop social toward sustainable community developmen