Geng L.,ShenYang Agricultural University
C e Ca | Year: 2017
Known as "built-in stabilizer" of economic activities, income tax is an important lever for government government to regulate economy. Cost of equity capital is crucial for capital market to play its roles in pricing and resource allocation. This paper analyzes impacts of listed agricultural companies' income tax burden upon the cost of equity capital under the backgrounds of preferential agriculture-related policies indicated in Enterprise Income Law of the People's Republic of China. During the test, analysts' forecasts are estimated with an extended AKR model. The research findings suggest that there were many tax preferences for agricultural production in new income tax policies of 2007, whereas it is discovered in the experimental test that income tax policies don't have significant impacts upon the cost of equity capital.
Agency: GTR | Branch: BBSRC | Program: | Phase: Research Grant | Award Amount: 39.33K | Year: 2011
Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.
Liu C.,ShenYang Agricultural University |
Li X.,ShenYang Agricultural University |
Li X.,CAS Research Center for Eco Environmental Sciences
Urban Forestry and Urban Greening | Year: 2012
Urban forests can play an important role in mitigating the impacts of climate change by reducing atmospheric carbon dioxide (CO 2). Quantification of carbon (C) storage and sequestration by urban forests is critical for the assessment of the actual and potential role of urban forests in reducing atmospheric CO 2. This paper provides a case study of the quantification of C storage and sequestration by urban forests in Shenyang, a heavily industrialized city in northeastern China. The C storage and sequestration were estimated by biomass equations, using field survey data and urban forests data derived from high-resolution QuickBird images. The benefits of C storage and sequestration were estimated by monetary values, as well as the role of urban forests on offsetting C emissions from fossil fuel combustion. The results showed that the urban forests in areas within the third-ring road of Shenyang stored 337,000t C (RMB92.02 million, or $ 13.88 million), with a C sequestration rate of 29,000t/yr (RMB7.88 million, or $ 1.19 million). The C stored by urban forests equaled to 3.02% of the annual C emissions from fossil fuel combustion, and C sequestration could offset 0.26% of the annual C emissions in Shenyang. In addition, our results indicated that the C storage and sequestration rate varied among urban forest types with different species composition and age structure. These results can be used to help assess the actual and potential role of urban forests in reducing atmospheric CO 2 in Shenyang. In addition, they provide insights for decision-makers and the public to better understand the role of urban forests, and make better management plans for urban forests. © 2011 .
Liu Q.-Q.,Shenyang Ligong University |
Tao G.-H.,ShenYang Agricultural University
ICIC Express Letters | Year: 2011
This paper investigates the quantized feedback control problem for networked control systems with limited data rates. The case with both measurement quantization and control signal quantization is considered. Sufficient conditions for stabilization of the unstable plant with a prescribed control performance are derived. An illustrative example is given to demonstrate the effectiveness of the proposed method.
Zhang Z.J.,ShenYang Agricultural University |
Ma S.L.,ShenYang Agricultural University
Oncology Reports | Year: 2012
miRNAs are small, endogenous, non-coding RNAs that negatively regulate protein-coding mRNAs at the post-transcriptional level. It is estimated that in humans thousands of miRNAs are expressed and more than 700 miRNAs have been described to date. About 50% of annotated human miRNAs are detected in regions of fragile sites, which are associated with cancer. The available evidence has shown that miRNAs widely participate in the development or progression of many types of cancers, including breast cancer. The role of miRNAs in breast cancer has been widely investigated; here, we will focus on what is known about the working mechanism of miRNAs in different stages of breast cancer development.
Zhang Y.,ShenYang Agricultural University
Physics Letters, Section A: General, Atomic and Solid State Physics | Year: 2013
Whether Wada basins of strange nonchaotic attractors (SNAs) can exist has been an open problem. Here we verify the existence of Wada basin for SNAs in a quasiperiodically forced Duffing map. We show that the SNAsÊ basins are full Wada for a set of parameters of positive measure. We identify two types of SNAsÊ Wada basins by the basin cell method. It suggests that SNAs cannot be predicted reliably for the specific initial conditions. © 2013 Elsevier B.V.
Zhang Y.,ShenYang Agricultural University |
Zhang Y.,Northeastern University China
Physica D: Nonlinear Phenomena | Year: 2013
We demonstrate strange nonchaotic attractors with Wada basins (SNAsWB), and verify the abundance of SNAsWB in a quasiperiodically forced Holmes map. We identify the routes to the creation of the SNAsWB in a two-parameter space. The SNAsWB are characterized by the maximal Lyapunov exponent, by the estimation of the phase sensitivity exponent, and by the singular-continuous spectra. We observe that the SNAs' basins are totally Wada basins in a large range of parameters. The topological structures of the SNAs' Wada basins are distinguished by the basin cell method. We investigate the underlying mechanism for the abundance of SNAsWB, which is responsible for different types of basin cell in the absence of forcing. This suggests that the SNAs cannot be predicted reliably for specific initial conditions. These SNAsWB can thus be expected to occur more commonly in dynamical systems. © 2013 Elsevier B.V. All rights reserved.
Zhang Y.,ShenYang Agricultural University
Nonlinear Dynamics | Year: 2013
Whether Wada basin boundaries can occur typically in dynamical systems other than smooth systems has been an open question. We verify the existence of Wada basin boundaries in a switched Hénon map. We combine two basin boundaries (non-Wada property) but when they are alternated in periodic manners the Wada basin boundaries can be created. We give some mathematically rigorous results guaranteeing these emerging Wada basin boundaries by the auxiliary dynamics method. It suggests that switching can also induce the consequence of the existence of a high number of possible final states. © 2013 Springer Science+Business Media Dordrecht.
Guo M.,ShenYang Agricultural University
Genetics and molecular research : GMR | Year: 2012
Micro-Tom is the smallest known variety of tomatoes. An orthogonal experimental design L(16) (4(5)) was used to optimize Agrobacterium-mediated transformation of cotyledon explants of Lycopersicon esculentum cv. Micro-Tom. Four parameters were investigated to determine their effect on transformation frequency: the concentration of bacterial suspension, time of dip in bacterial suspension, co-cultivation time, and concentration of carbenicillin. We also examined the effect of these parameters on contamination rate, necrosis rate, mortality, cut-surface browning rate, and undamaged explant rate. Both the bacterial and carbenicillin concentrations had a significant influence on the rate of infected explants. The time of co-cultivation also had a significant influence on the transformation parameters. The optimal transformation protocol consisted of an Agrobacterium suspension of 0.5 × 10(8) cells/mL (OD(600) = 0.5) and an infection time of 5 min, one day of co-cultivation and 500 mg/L carbenicillin. Under these conditions, the transformation efficiency of the shoots reached 5.1%; the mean transformation frequency was 3.9% (N = 838).
Tian H.,ShenYang Agricultural University
Chemosphere | Year: 2011
A sensitive method for determination of chloramphenicol, enrofloxacin and 29pesticides residues in bovine milk by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was developed. Residues of the targets were extracted from milk with acetonitrile, cleaned up by C18-SPE cartridge, and then determined by HPLC-MS/MS. The MS detection was operated in positive or negative ionization mode, depending on the compounds. For confirmation of each target compound, two precursor ion>product ion transitions were selected by multi-reaction monitoring mode (MRM). The method showed good linearity for all the tested compounds over the studied concentration range with correlation coefficient higher than 0.9910. Recoveries for the studied compounds at three spiked levels (0.05, 0.10, 0.19mgkg-1) in bovine milk were in the range of 71-107% with RSDs not larger than 13.7%, except that recoveries of trifluralin ranged between 62% and 70% at the spiked levels. Limits of quantitation for the analytes were estimated to range between 0.03×10-3 and 14.5×10-3mgkg-1. The proposed method was applied for the determination of the analytes residues in real samples. The found levels of the analytes in milk samples were lower than maximum residues levels (MRL). © 2010 Elsevier Ltd.