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The purpose of this paper is to help understanding the value of food resources (FRs). This may raise global awareness on their importance in macro- and micro-economics.

The relationship of FRs with human life was analyzed through literature review to illustrate their real value. Association of FRs production with the probability of becoming a high income country was estimated by analyzing the relevant data published by FAOSTAT, World Bank and United Nations to illustrate their value in macro-economy. Analyzing the interrelationship of prices with their attributes through literature review and the correlation of the relevant data published by FAOSTAT and OECD was undertaken to create a mathematical model for pricing FRs.

The real value of FRs is unaccountable, which makes their economic value (price) be not always determined on market. Increase in the probability of becoming a high income country with increase in FRs production indicates that their shortage may bottleneck macro-economic development. A mathematical model has been created for estimating the economic value of FRs.

These findings are applicable for managing (or administrating), pricing or evaluating FRs, analyzing their economic status, developing business and predicting tendency in micro-economy. They are also vital for managing or developing macro-economy. The findings should be useful for farmers, food companies, governmental agents, individuals, etc.

This is the first to report these findings. This is a significant progress in FRs research and valuable for education.

Concerning that limited explanation exists examining the function of corporate governance in trust processing within entrepreneurial network development, the purpose of this paper is to explore trust evolution and the role of corporate governance in an entrepreneurial network.

This paper makes an innovative exploration based on the case study of NVC Lighting Holding Limited.

It proposes that in the initial period of network relationship which is based on entrepreneur’s individual social network and embodies sole social network embeddness, entrepreneurial network relies more on affective trust than contractual trust. When stepping into extending period of network relationship which reflects separate embeddedness of social and market network, however, entrepreneurial network has an equal reliance on both affective trust and contractual trust. With further development, when ushering in the phase of maturity which undergoes superimposing embeddedness of both social and market network, entrepreneur network inclines to rely more heavily on affective trust than contractual trust. During the whole process, it can be found that the reliance of entrepreneurial network on trust has the tendency to transfer from affective trust to contractual trust. Furthermore, decreasing of equity ratio of founders and strengthening of controlling right heterogeneity in the corporate governance have facilitated the transfer process and the entrepreneurs’ authority has restraining effect on the evolution of the process.

Through case study, this paper presents the trust evolution process in different stages of entrepreneurial network. Another important theoretic contribution of this paper is that it reveals the function of corporate governance in trust processing within entrepreneurial network development.

To solve the problems of short battery life and low transportation safety of logistics drones, this paper aims to propose a design of logistics unmanned aerial vehicles (UAV) wing with a composite ducted rotor, which combines fixed wing and rotary-wing.

This UAV adopts tiltable ducted rotor combined with fixed wing, which has the characteristics of fast flight speed, large carrying capacity and long endurance. At the same time, it has the hovering and vertical take-off and landing capabilities of the rotary-wing UAV. In addition, aerodynamic simulation analysis of the composite model with a fixed wing and a ducted rotor was carried out, and the aerodynamic influence of the composite model on the UAV was analyzed under different speeds, fixed wing angles of attack and ducted rotor speeds.

The results were as follows: when the speed of the ducted rotor is 2,500 rpm, CL and K both reach maximum values. But when the speed exceeds 3,000 rpm, the lift will decrease; when the angle of attack of the fixed wing is 10° and the rotational speed of the ducted rotor is about 3,000 rpm, the aerodynamic characteristics of the wing are better.

The novelty of this work comes from a composite wing design of a fixed wing combined with a tiltable ducted rotor applied to the logistics UAVs, and the aerodynamic characteristics of the design wing are analyzed.