RESEARCH ARTICLE Calcareous Interlayer Causes and Logging Identification for the Shawan Formation of the Chunfeng Oilfield Qingjie Hou, Qiang Jin, Weizhong Li, Lamei Lin, Wenmin Jiang and Wenjie Han 1 School of Geosciences, China University of Petroleum, No.66 Changjiang West Road, Huangdao District, Qingdao, Shandong 266580, P.R. China 2 Research Institute of Geological Science, Sinopec Shengl...

*Correspondence: [email protected] 1College of Mathematics and System Science, Shandong University of Science and Technology, Qianwangang Road, Qingdao, 266590, P.R. China Full list of author information is available at the end of the article Abstract In this paper, the existence and uniqueness of solutions for an impulsive mixed boundary value problem of nonlinear differential equations of f...

CAS Key Lab of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China, Commonwealth Scientific and Industrial Research Organization, Melbourne, Victoria, Australia, Institut de Recherche pour le D eveloppement, LEGOS, UMR5566 CNRS-CNES-IRD-Universit e de Toulouse III, Toulouse, France, NOAA/Pacific Marine Environmental Laboratory, NOAA/PMEL/OCRD, Seatt...

*Correspondence: [email protected] 1Department of Applied Mathematics, Shandong University of Science and Technology, Qingdao, Shandong 266590, P.R. China Full list of author information is available at the end of the article Abstract In this paper, we investigate the existence of solutions for some second-order integral boundary value problems, by applying new fixed point theorems in Banach sp...

Author affiliations: School of Public Health, Shandong University, Jinan, China (L.-Z. Fang, L. Zhao, H.-L. Wen, J.-W.. Liu, S.-T. He, X.-S. Zhang, X.-j. Yu); Huangdao District Center for Disease Control and Prevention, Qingdao City, China (Z.-T. Zhang, Z.-F. Xue, D.-Q. Ma); College of Medicine and Nursing, Dezhou University, Dezhou City, China (Y. Zhang); and University of Texas Medical Branch...

Abstract Background Pneumonia is one of the principal reasons for incidence and death in world. The former research mainly concentrated on specific sources patients. Besides, due to heterogeneity among regions, there are inconsistencies outcome these surveys. To explore relationship between atmospheric pollution hospital visits pneumonia under climate conditions Qingdao, we carried out this stu...

Identification and quantification of 16 priority Polycyclic Aromatic Hydrocarbons (PAHs) collected from 4 atmosphere particulate samples in December 2008 to January 2009 were determined by gas chromatography (GC). The source of the PAHs in atmosphere particulate was estimated by chemical mass balance model and improved source apportionment technique. Dust was the major PAHs source in Qingdao, a...

Abstract This study applies space syntax methodology and investigates the centrality process of four centers in Qingdao, China, which grow from old settlements during successive phases urban growth. The aim is to increase understanding how form can generate sustain as well embed them in, or distinguish their context that has been built up a rather complex geographic region. Results reveal devel...

The emergence of “Concessions” is not a simple historical problem. Based on the sovereignty declining theory, this paper attempts to explore and mechanism process change. Unlike ceded territory, Chinese in modern times are special sovereign space. It means China shares its with western states. breaks “supremacy” “exclusiveness” sovereignty. As different legal statuses, Shanghai Qingdao only par...