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| 1 | Discovery and Geological Significance of Neoproterozoic Metamorphic Granite in Jimo, Shandong Province, Eastern China显示文摘During the 1:50000 regional geological survey in Jimo,east Shandong Province,Paleoproterozoic metamorphic supracrustal rocks and Neoproterozoic metamorphic plutonite were newly discovered. These rocks displayed inclusions which had occurred in the Mesozoic granite,and the main lithologies are schist,granulite,marble,and granitic gneiss. Geochemical analyses suggest that Neoproterozoic metamorphic plutonite are characterized by high-K,metaluminous to weakly peraluminous. They are enriched in LILE and depleted in HFSE,with moderately enrichment of LREE,weak fractionation of LREE from HREE and negative Eu anomalies. The surface age of plutonic rocks in the survey area is 770.2±2.4 Ma,representing the age of magma crystallization,which is agreement with the the Neoproterozoic magmatic event after Rodinia supercontinent in the northern margin of Southern China continental block. In addition,the age of sporadic distribution(298 Ma and 269 Ma) is mixed zircon age,representing the rocks experienced metamorphism in Indosinian period. According to the associated mineral assemblages,and the characteristic metamorphic minerals and temperature pressure conditions,four metamorphic facies were identified,including amphibolitic,epidote amphibolite,greenschist,and mid-high pressure greenschist. Analysis of tectonic setting suggests that granitic gneiss is formed in an extensional environment and was involved from the continental margin magmatic arc to intraplate environment. Jimo is distributed in the east of Zhuwu fault,and has the same Spatial distribution location with the Weihai uplift UHP metamorphic belt rocks. The metamorphic rocks in Jimo area have similar geochemical characteristics of elements,tectonic setting and retrograde metamorphism with that in the Sulu UHP metamorphic belt. Therefore,Zhuwu fault may be the boundary fault of Sulu UHP metamorphic belt. | ZHU Decheng Lü Dawei SHEN Xiaoli YANG Qing LI Dandan REN Tianlong YANG Shipeng | 2016 | Acta Geologica Sinica(English Edition)2016,90,6: | 3 |
| 2 | Depositional Environments of the Upper Permian Quartzose Sandstone(Shandong Province, North China): Insight from Trace Element Geochemistry显示文摘The depositional environment of the Upper Permian quartzose sandstone(Kuishan sandstone in Shihezi Formation of Upper Permian) in the North China epicontinental basin is controversial. In order to test the previous hypotheses, we analyzed sedimentological characteristics of the Kuishan sandstones in outcrops and boreholes, and carried out trace element geochemical analysis by electron probe microanalyzer. Three lithofacies were recognized, including normal-graded conglomerate(Cng), trough and planar cross-bedded coarse sandstone(CStpc), and planar cross-bedded medium sandstone(MSpc). Normal-graded conglomerate(Cng) formed in the meandering river or deltaic distributary channels. Trough and planar cross-bedded coarse sandstone(CStpc) formed in meandering river or distributary channels of near-source deltaic plain. Planar cross-bedded medium sandstone(MSpc) formed in the siliciclastic beach with high- to moderate-energy conditions. By the petrology and trace elements analysis, three relatively large-scale transgressions were revealed. Each transgression was reflected by the lower content of Ba and ratios of Fe/Mn, and the high content of B and ratios of B/Ga. The ratios of Ni/Co of all samples are all lower than 2, suggesting oxygen-enriched shallower water environment during deposition of the Kuishan sandstones. | Dawei Lü Zengxue Li Jitao Chen Ying Liu Zengqi Zhang Jipo Liang Haiyan Liu | 2015 | Journal of Earth Science2015,26,2: | 2 |
| 3 | Contribution to sample failure probability plot and its solution by Kriging method显示文摘To analyze the effect of the region of the model inputs on the model output,a novel concept about contribution to the sample failure probability plot(CSFP) is proposed based on the contribution to the sample mean plot(CSM) and the contribution to the sample variance plot(CSV).The CSFP can be used to analyze the effect of the region of the model inputs on the failure probability.After the definition of CSFP,its property and the differences between CSFP and CSV/CSM are discussed.The proposed CSFP can not only provide the information about which input affects the failure probability mostly,but also identify the contribution of the regions of the input to the failure probability mostly.By employing the Kriging model method on optimized sample points,a solution for CSFP is obtained.The computational cost for solving CSFP is greatly decreased because of the efficiency of Kriging surrogate model.Some examples are used to illustrate the validity of the proposed CSFP and the applicability and feasibility of the Kriging surrogate method based solution for CSFP. | LI DaWei Lü ZhenZhou ZHOU ChangCong | 2013 | Science China(Technological Sciences)2013,56,4: | 2 |
| 4 | Adsorption equilibrium for Z-ligustilide on C18-bonded silica from supercritical carbon dioxide显示文摘Adsorption equilibrium is of great importance for the preparative supercritical fluid chromatography(pre-SFC) in defining supercritical adsorption behavior and the industrial amplification.This paper presents adsorption isotherms of Z-ligustilide from supercritical carbon dioxide(SC-CO_2) on C18-bonded silica.Adsorption behavior was studied at 305.15 K,313.15 K and 323.15 K with SC-CO_2 density varying from 0.687 g·cm^(-3) to0.863 g·cm^(-3) with the elution by characteristic points(ECP) method.The adsorption amount of Z-ligustilide from SC-CO_2 on C18-bonded silica decreased with the increasing density of the mobile phase as well as the increasing temperature.Adsorption equilibrium data were fitted by Langmuir and Freundlich isotherm models,and the Langmuir isotherm model performed better for describing the whole adsorption process on the column.The monolayer saturation adsorption capacity of Z-ligustilide is in the range of 3.0 × 10^(-4) mg·cm^(-3) to5.5 × 10^(-4) mg·cm^(-3) with an average value of 4.0 × 10^(-4) mg·cm^(-3). | Huisheng Lü Shuangyan Liu Yonghui Li Fanmei Meng Dawei Yao Xufei Mo | 2016 | Chinese Journal of Chemical Engineering2016,24,12: | 1 |
| 5 | Optimization and design of coal mine safety supervision information flow based on internet/intranet 显示文摘 | DAWEI R GAI L L YANG N | 2011 | Applied Mechanics and Materials2011,6364,1: | 1 |
| 6 | A novel fixation system for sacroiliac dislocation fracture: internal fixation system design and biomechanics analysis显示文摘 | Dawei T Na L Jun L | 2013 | Clin Biomech (Bristol Avon)2013,28,: | 1 |
| 7 | Pure silicate perovskite and the PREM lower mantle model: A thermodynamic analysis 显示文摘 | ANDERSON O L MASUDA K GUO Dawei | 1995 | Phys Earth Planet Inter1995,89,: | 1 |
| 8 | Oral colon - specific drug delivery for bee venom peptide: development of a coatde calcium alginate gel beads- entrapped liposome 显示文摘 | Xing L Dawei C Lioing X | 2003 | Control Relerse2003,93,3: | 1 |
| 9 | Increased number and differentiation of neural precursor cells in the brainstem of superoxide dismutase 1 (G93A) (G1H) transgenic mouse model of amyoirophic lateral sclerosis 显示文摘 | Juan L Dawei Z Julie AD | 2007 | Neurol Res2007,29,2: | 1 |
| 10 | Restriction of third-generation cephalosporin use decreases infectionrelated mortality显示文摘 | BIN D DECHANG C DAWEI L | 2003 | Crit Care Med2003,31,4: | 1 |
| 11 | Oral colon-specific drug delivery for bee venom peptide:development of a coatde calcium alginate gel beads-entrapped liposome显示文摘 | Xing L Dawei C Lioing X | 2003 | J Control Relerse2003,93,3: | 1 |
| 12 | Restriction of third-generation cephalosporin use decreases infection-related mortality 显示文摘 | Bin D Dechang C Dawei L | 2003 | Crit Care Med2003,31,4: | 1 |
| 13 | Phase relations in the system Cu-Mo-S 显示文摘 | Huang Dawei Luke L Y Chang Charles R Knowles | 1990 | Journal of the Less Common Metals1990,163,2: | 1 |
| 14 | B7-H4 as a protective shield for pancreatic islet beta cells显示文摘Auto- and alloreactive T cells are major culprits that damage β-cells in type 1 diabetes(T1D) and islet transplantation. Current immunosuppressive drugs can alleviate immune-mediated attacks on islets. T cell co-stimulation blockade has shown great promise in autoimmunity and transplantation as it solely targets activated T cells, and therefore avoids toxicity of current immunosuppressive drugs. An attractive approach is offered by the newly-identified negative T cell cosignaling molecule B7-H4 which is expressed in normal human islets, and its expression co-localizes with insulin. A concomitant decrease in B7-H4/insulin colocalization is observed in human type 1 diabetic islets. B7-H4 may play protective roles in the pancreatic islets, preserving their function and survival. In this review we outline the protective effect of B7-H4 in the contexts of T1 D, islet cell transplantation, and potentially type 2 diabetes. Current evidence offers encouraging data regarding the role of B7-H4 in reversal of autoimmune diabetes and donor-specific islet allograft tolerance. Additionally, unique expression of B7-H4 may serve as a potential biomarker for the development of T1 D. Futurestudies should continue to focus on the islet-specific effects of B7-H4 with emphasis on mechanistic pathways in order to promote B7-H4 as a potential therapy and cure for T1 D. | Annika C Sun Dawei Ou Dan S Luciani Garth L Warnock | 2014 | World Journal of Diabetes2014,5,6: | 1 |
| 15 | Increased number and differentiation of neural precursor cel in the brainstem of superoxide dismutase1G93A G1H transgenic mouse model ofamyotrophic lateral sclerosis显示文摘 | Juan L Dawei Z Julie AD | | 0,,: | 1 |
| 16 | Control of a doubly fed induction generator in a wind turbine during grid fault ridethrough显示文摘 | XIANG Dawei RAN L TAVNER P J | | 0,,03: | 1 |
| 17 | Improved direct power control of grid-connected DC/AC converters显示文摘 | ZHI Dawei XU l ie BARRY W W | 2009 | IEEE Transactions on Power Electronics2009,24,5: | 1 |
| 18 | Evaluation of different approaches for modeling effects of acid rain on soils in China 显示文摘 | Larssen T Schnoor J L Seip H M Dawei Z | 2000 | Sci Total Environ2000,246,23: | 1 |
| 19 | A chaos-based robust wavelet-domain watermarking algorithm显示文摘 | Dawei Z Guanrong C Wenbo L | 2004 | Chaos Solitons&Fractals2004,22,1: | 1 |
| 20 | Titanium oxide nanotube arrays prepared by anodic oxidation显示文摘 | Dawei G Xiaozhen Y Taiqi L | | 0,,: | 1 |