The Blueshift Of Civ Broad Emission Line In Qsos

For the sample from Ge et al. of 87 low-$z$ Palomar--Green (PG) quasi-stellar objects (QSOs) and 130 high-$z$ QSOs ($0<z<5$) with \hb-based single-epoch supermassive black hole (SMBH) masses, we performed a uniform decomposition of the \civ\ $\lambda$1549 broad-line profile. Based on the rest frame defined by the \oiii $\lambda$5007 narrow emission line, a medium-strong positive correlation is found between the \civ\ blueshift and the luminosity at 5100\AA\ or the Eddington ratio \leddR. A medium-strong negative relationship is found between the \civ\ blueshift and \civ\ equivalent width. These results support the postulation where the radiation pressure may be the driver of \civ\ blueshift. There is a medium strong correlation between the mass ratio of \civ-based to \hb-based \mbh and the \civ\ blueshift, which indicates that the bias for \civ-based \mbh is affected by the \civ\ profile.Comment: 18 pages, 8 figures, Accepted for publication in A

Process Logic for Verifying the Correctness of Business Process Models

Process verification is a key step in business process management. In this paper, we propose process logic as a new logical formalism and mathematical method to enable advanced process verification. We formally define the syntax and semantics of process logic, establish a formal relationship between process logic and graphical representation of process models, and transform the problem of verifying the correctness of process models into a problem of determining the validity of logic argument forms

Study on Protein Related to Heat Tolerance of \u3cem\u3eMedicago sativa\u3c/em\u3e L. \u27Deqin\u27

High temperature over the growth threshold of plants can cause their metabolic and developmental changes, and consequently bring about their slow growth (Lobell et al., 2008). Alfalfa (Medicago sativa L.) is a high-quality legume suitable for growing in semi-arid areas. Its poor thermo tolerance restricts its introduction and popularization in southern China and transitional zone. Fall dormancy is an important indicator for planting planning of alfalfa (Barnes et al., 1977. Existing research shows that alfalfa varieties with a higher fall dormancy rate (FDR) have a stronger heat resistance (Lu, 1998). M. sativa L. ‘Deqin’ (hereinafter referred to as ‘Deqin’) is a wild type alfalfa with a low FDR (1.2) which can grow and proliferate normally in dry-hot valley regions in Deqin County, Yunnan, China. It shows a strong heat resistance. This phenomenon is contradictory to the inference that alfalfa varieties with a higher FDR have a stronger heat resistance. We intend to study physiological and biochemical changes and the change of mRNA expression quantity of differential protein and coding differential protein of ‘Deqin’ under high-temperature stress and analyze heat resistant physiology and molecular biological mechanism of ‘Deqin’. This result will enrich the study theory of alfalfa resources in China and provide theoretical basis for the introduction and popularization of alfalfa with the indicator of fall dormancy rate