Showing 1 - 10 of 21
This paper presents the design, construction and tests of a traveling-wave thermoacoustic electric generator. A two-stage traveling-wave thermoacoustic engine converts thermal energy to acoustic power. Two low-impedance linear alternators (i.e., audio loudspeakers) were installed to extract and...
Persistent link: https://www.econbiz.de/10011116071
This procedure specifies production area environment, production technology, prevention and control of plant diseases and insect pests, and production files of pollution-free foods by taking tomato as an example. This procedure is applicable for greenhouse production of pollution-free food in...
Persistent link: https://www.econbiz.de/10010918959
The textile and clothing industry generates much pollution and consumes a large amount of resources. Improper uses and disposal of clothing products make the problems much more severe. Fast fashion products shorten the valid lifecycle and generate more waste than regular clothing products....
Persistent link: https://www.econbiz.de/10010945658
Existing research has highlighted the high leverage ratio of Real Estate Investment Trusts (REITs). To the extent that credit rating is important to REITs when sourcing for capital from the public debt markets, our paper investigates the effect of changes in REIT credit ratings on capital...
Persistent link: https://www.econbiz.de/10010953247
Replenishment and pricing strategies are traditionally determined by entirely separate units of a firm, the former by production and the latter by marketing. In a large organization production and marketing are traditionally measured in terms of performance criteria appropriate and relevant...
Persistent link: https://www.econbiz.de/10009218720
In the late 1970s China launched its agricultural reforms which initiated a decade of continued economic growth and significant transformation of the Chinese society. The agricultural reforms altered the peasants' incentives, weakened community organization and lessened the central government's...
Persistent link: https://www.econbiz.de/10008593630
Persistent link: https://www.econbiz.de/10005161182
In this paper we present a simple model where asset returns are functions of multiple investment growth rates. The model is tested for its ability to price the 25 Fama-French portfolios using the Generalized Methods of Moments (GMM) methodology, as well as Fama-MacBeth cross-sectional...
Persistent link: https://www.econbiz.de/10005504559
This paper investigates convergence patterns among 113 market economies. Incorporating different grouping methods, both ADF (augmented Dicke-Fuller) tests and KPSS (Kwiatkowski, Phillips, Schmidt, Shin) tests are used to examine whether countries converge to the group average. The test results...
Persistent link: https://www.econbiz.de/10005695157
In this paper, a three-dimensional (3D) finite-difference lattice Boltzmann model for simulating compressible flows with shock waves is developed in the framework of the double-distribution-function approach. In the model, a density distribution function is adopted to model the flow field, while...
Persistent link: https://www.econbiz.de/10010742333