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| 1 | Coupling controls of neotec-tonism and paleoclimate on the Quaternary sediments of the Yangtze (Changjiang) coast显示文摘Attempt has been made to discuss the coupling relation of neotectonism and paleoclimate that have played a critical role in controlling the Quaternary sediment distribu-tion and sedimentary facies evolution on the Yangtze coast. On the basis of petrological analysis, up to six sedimentary cyclicities have been identified in the Quaternary sediment boreholes on the time scale of 0.4―0.5 Ma. The lower sedi-mentary cyclicities (Pliocene to Early Pleistocene) are char-acterized largely by thicker gravelly coarse sands, topped by thinner fine silt and silty clay. Gravels are very angular and clayey gravels prevail. Sediments are usually of poor sorting, rich in log fragments and have no microfossils. Bedload as denoted by C-M plot occurs throughout the section. This evidence represents the alluvial fan sedimentation which took place as the basin began to subside. The middle sedimentary cyclicities (often including Early to Middle Pleistocene) con-sist of basal gravelly sands and clayey silt at the middle and upper sediment sections. Sorting becomes relatively better, and foraminifer appears sporadically. C-M plot reveals the mixture of sediment transport media via bedload, saltation and suspension, representing sedimentation of braided river system at the early stage and subsequently, the sedimentation of meandering river pattern. The upper sedimentary cyclic-ities (including Late Pleistocene to Holocene) comprise basal gravelly sands (exclusive of the Holocene sediment) and thick fine sand and silty clay on the upper section. Sorting becomes fine and foraminifer appears throughout the sediment sec-tion. C-M plot shows that saltation and suspension serve as the main sediment transport media in the sediment section and bedload transport weakens. These evidence the sedi-mentation of meandering river pattern near coast during Late Pleistocene and Holocene time, when marine transgres-sion invaded into the paleoriver valleys, which often forms drowned-valley facies and shallow marine facies. Of note is the Recent delta facies developed on the top of the cyclicities, and characterized by a large proportion of fine sand and siltyclay, and various sedimentary beddings. These phenomena have proved enhanced climate function on sedimentary fa-cies evolution on the basis of previous alluvial fan system, largely affected by tectonic subsidence setting. | WANG Zhangjiao CHEN Zhongyuan WEI Zixin WANG Zhanghua WEI Taoyuan | 2005 | Chinese Science Bulletin2005,50,16: | 10 |
| 2 | Rice From Mercury Contaminated Areas in Guizhou Province Induces c-jun Expression in Rat Brain显示文摘Objective Mercury (Hg), as one of the priority pollutants and also a hot topic of frontier environmental research in many countries, has been paid higher attention in the world since the middle of the last century. Guizhou Province (at N24°30′-29°13′, E103°1′-109°30′, 1 100 m above the sea level, with subtropical humid climate) in southwest China is an important mercury production center. It has been found that the mercury content in most media of aquatics, soil, atmosphere and in biomass of corns, plants and animals, is higher than the national standard.The present study aims to explore the influence of mercury pollution on the health of local citizens. Methods The effect of rice from two mercury polluted experimental plots of Guizhou Province on the expression of c-jun mRNA in rat brain and c-jun protein in cortex, hippocampus and ependyma was observed using reverse transcription polymerase chain reaction (RT-PCR) and immunocytochemical methods. Results The results showed that the mercury polluted rice induced expression of c-jun mRNA and its protein significantly. Selenium can reduce Hg uptake, an antagonism between selenium and mercury on the expression of c-jun mRNA and c-jun protein. Conclusion c-jun participates in the toxicity process of brain injury by mercury polluted rice, the expression of c- jun mRNA in brain, and c-jun protein in rat cortex and hippocampus can predict neurotoxicity of mercury polluted rice. People should be advised to be cautious in eating any kind of Hg-polluted foods. To reveal the relationship between c-jun induction and apoptosis, further examinations are required. | JIN-PINGCHENG WEN-HUAWANG LI-YAQU JIN-PINGJIA MINZHENG XIU-LINGJI TAOYUAN | 2005 | Biomedical and Environmental Sciences2005,18,2: | 5 |
| 3 | Age and Origin of Paleogene Granitoids from Western Yunnan Province,China:Geochemistry,SHRIMP Zircon Ages,and Hf-in-Zircon Isotopic Compositions显示文摘We report geochemical data, SHRIMP zircon ages and Hf-in-zircon isotopic compositions for Cenozoic granitoids from major fault systems in the Tethyan belt in western Yunnan Province, southwestern China.Four magmatic pulses occurred in the Paleogene, namely at ca.57 Ma, ca.50 Ma, 45–40 Ma, and 38–34 Ma.Early magmatism of this episode(57–50 Ma) produced S-type granites whose zircons yielded εHf(t) values of-5.0 to-0.3.In contrast, late magmatism of this episode reflects heterogeneous sources.Zircons from a granite porphyry along the Ailaoshan-Red River fault system have slightly positive εHf(t) values suggesting derivation from relatively young crust and/or a juvenile source.However, zircons from a granite along the Gaoligong fault system have strongly negative εHf(t) values and suggest derivation from a Paleoproterozoic crustal source.The composition of the granitoids varies with age(from ca.57 Ma to ca.34 Ma) from peraluminous to metaluminous and also suggests a change from syn-collisional to late-orogenic tectonic setting.A new tectonic model, impacting lithospheric wedge(ILW) is shown for the origin of Paleogene granitoids in this paper. | SHI Yuruo WU Zhonghai Alfred KRoNER FAN Taoyuan YANG Zhenyu | 2015 | Acta Geologica Sinica(English Edition)2015,89,5: | 3 |
| 4 | The Novel Y-Branch With Two Reflectors显示文摘A novel Y-branch waveguide with two reflectors is proposed. The normalized transmitted power for the branching angle of 50?is greater than 70%, which is higher than conventional Y-branch with such wide angle. | Ruei-Chang Lu Yu-Pin Liao Department of Electronic Engineering, I-Lan Institute of Technology, 1, Shen-Nung Rd., ILan, 260,Taiwan, Tel: 886-03-9357400-653, Fax: 886-03-9369507, E-Mail: rclu@ilantech.edu.twDepartment of Electronic Engineering, Ching Yun Institute of Technology, 229, Chien-Hsin Rd., Jung-Li, Taoyuan,32020,Taiwan | 2003 | 光学学报2003,23,S1: | 3 |
| 5 | Effects of chitosan-TPP nanoparticles on hepatic tissue after severe bleeding显示文摘Recently, chitosan nanoparticles have been an attractive biomaterial for their unique properties. Chitosan nanoparticles are mainly used as drug delivers. However, they are seldom used in wound healing after severe bleeding. In the present paper, chitosan nanoparticles with an average size of 60.2 nm were prepared through ionic gelation and characterized by X-ray diffraction and FT-infrared spectrometry. A new animal model of severe bleeding was made to evaluate its effects on wound healing besides hemostasis. The results showed that it can achieve well hemostatic effects and also induce wound healing after severe bleeding. Blood cells can be absorbed by chitosan nanoparticles and the bleeding is treated. Furthermore, the chitosan nanoparticles sustains longer than other materials in wound healing. At the 15th day after operation, the chitosan nanoparticles with the size of 58.3 nm can still be seen in the new-regenerated hepatic tissue. It can induce the formation of a clear granulation around the wound site. Through histological observation, we find out that chitosan-TPP nanoparticles can induce wound healing through migration of the inflammatory cells and synthesis of collagen. So, chitosan nanoparticles show us both hemostasis and the ability of wound healing for parenchymal organs. | Zhao Aiyuan Wang Taoyuan Yao Mini Li Hongwei | 2011 | Journal of Medical Colleges of PLA(China)2011,26,5: | 2 |
| 6 | A general equilibrium view of global rebound effects显示文摘 | Taoyuan Wei | 2009 | Energy Economics2009,,3: | 2 |
| 7 | Spatial and temporal distribution of trace elements in Yangtze Estuary,China: Significance of diluted setting显示文摘The present study is to examine the spatial and temporal distribution of eight trace elements (Sr, Ba, B, Ga, Ni, V, Cu, and F) in various Holocene marine subfacies in the Yangtze Estuary, including its subaqueous delta by sediment borehole and vibrocore. Results demonstrate that grain size is the determinant factor in controlling the concentration of most trace elements discussed. Prodelta mud that occurs usually below the normal wave base can serve as a depository sink for trapping trace elements over the long-term time period. For example, copper concentration is 5-6 times higher than those found in the estuarine sediment. Boron, which is used to be a salinity indicator, shows a strong negative correlation with paleosalinity (using sediment phosphate method), implying desalinized water setting in the Yangtze Estuary, into which a large quantity of the Yangtze freshwater (924×109 m3/a) has discharged. Trace element concentrations of the study area were compared with those collected from the middle | WANG Zhanghua CHEN Zhongyuan LI Luqian WEI Taoyuan | 2001 | Chinese Science Bulletin2001,46,S1: | 2 |
| 8 | Theory,preparation,properties and catalysis application in 2D graphynes-based materials显示文摘Carbon has three hybridization forms of sp^(-),sp^(2-)and sp^(3-),and the combination of diferent forms can obtain diferent kinds of carbon allotropes,such as diamond,carbon nanotubes,fullerene,graphynes(GYs)and graphdiyne(GDY).Among them,the GDY molecule is a single-layer two-dimensional(2D)planar structure material with highlyπ-conjugation formed by sp^(-)and sp^(2-)hybridization.GDY has a carbon atom ring composed of benzene ring and acetylene,which makes GDY have a uniformly distributed pore structure.In addition,GDY planar material have some slight wrinkles,which makes GDY have better self-stability than other 2D planar materials.The excellent properties of GDY make it attract the attention of researchers.Therefore,GDY is widely used in chemical catalysis,electronics,communications,clean energy and composite materials.This paper summarizes the recent progress of GDY research,including structure,preparation,properties and application of GDY in the field of catalysts. | Ning Zhang Jiayu Wu Taoyuan Yu Jiaqi Lv He Liu Xiping Xu | 2021 | Frontiers of physics2021,16,2: | 1 |
| 9 | Diagnostic heavy minerals in Plio–Pleistocene sediments of the Yangtze Coast, China with special reference to the Yangtze River connection into the sea显示文摘 | Jing Chen Zhanghua Wang Zhongyuan Chen Zixin Wei Taoyuan Wei Wei Wei | 2009 | Geomorphology2009,,3: | 1 |
| 10 | Efficacious selective separation of U(Ⅵ) over Mo(Ⅵ) using novel 2,9-diamide-1,10-phenanthroline ligands: Liquid-liquid extraction and coordination chemistry显示文摘Uranium and molybdenum are important strategic elements. The production of ^(99)Mo and the hydrometallurgical process of uranium ore face difficult problems of separation of uranium and molybdenum.In this study, the four phenanthroline diamide ligands were synthesized, and extraction and stripping experiments were performed under different conditions to evaluate the potential application of these ligands for separation of U(Ⅵ) over Mo(Ⅵ). With the growth of alkyl chain, the solubility of ligands could be greatly improved, and the separation effect of U(Ⅵ) over Mo(Ⅵ) gradually increased. The SF_(U/Mo) were around 10,000 at 4 mol/L HNO3. Three stripping agents were tested with the stripping efficiency of Na_(2)CO_(3)(5%) > H_(2)O > HNO_(3)(0.01 mol/L). The stripping percentages of the three stripping agents were all close to unity, indicating that the ligands had the potential to be recycled. The chemical stoichiometry of U(Ⅵ) complexes with ligands was evaluated as 1:1 using electrospray ionization mass spectrometry,ultraviolet visible spectroscopy and single-crystal X-ray diffraction. The consistency between theoretical calculation and experimental results further explains the coordination mechanism. | Taoyuan Xiu Simei Zhang Peng Ren Siyan Liu Shuai Wang Hamza Shehzad Jingyang Wang Meng Zhang Guoan Ye Caishan Jiao Qunyan Wu Liyong Yuan Zhifang Chai Weiqun Shi | 2023 | Chinese Chemical Letters2023,34,11: | 1 |
| 11 | Pasteurized and sterilized maple sap as functional beverages:Chemical com position and antioxidant activities 显示文摘 | TaoYuan Liya Li Yan Zhang | 2013 | Journal of Functional Foods2013,,5: | 1 |
| 12 | What STIRPAT tells about effects of population and affluence on theenvironment显示文摘 | Wei Taoyuan | 2011 | EcologicalEconomics2011,75,12: | 1 |
| 13 | Sedimen- tation rates in relation to sedimentary processes of the Yangtze Estuary, China显示文摘 | Wei Taoyuan Chen Zhongyuan Duan Lingyun | 2007 | Estu:rine Coastal and Shelf Science2007,71,12: | 1 |
| 14 | Limit of Spectral Resolution in Terahertz Time—Domain Spectroscopy显示文摘The pulsed nature of terahertz time-domain spectroscopy (THz-TDS) sets a fundamental limit on its spectral resolution. The spectral resolution of THz-TDS can be improved by increasing the duration of the temporal measurement, but is limited by the dynamic range of the system in the time domain. This paper presents calculations and experimental results relating the temporal dynamic range of a THz-TDS system to its spectral resolution. We discuss three typical terahertz sources in terms of their dynamic range and hence achievable spectral resolution. | JingzhouXu TaoYuan SamuelMickan X.-C.Zhang | 2003 | Chinese Physics Letters2003,20,8: | 1 |
| 15 | Disc cam in indexing mechanism with continuous acceleration behavior and computer aided NC programming显示文摘 | ZHAO Haodong LI Taoyuan GUO Peiquan | 2010 | Journal of Harbin Institute of Technology2010,17,1: | 1 |
| 16 | Impact of energy efficiency gains on output and energy use with Cobb-Douglas production function显示文摘 | Wei Taoyuan | | 0,,03: | 1 |
| 17 | Impact of energy efficiency gains on output and energy use with Cobb–Douglas production function显示文摘 | Taoyuan Wei | 2006 | Energy Policy2006,,4: | 1 |
| 18 | Coal cleaning: a viable strategy for reduced carbon emissions and improved environment in China?显示文摘 | Solveig Glomsr?d Wei Taoyuan | 2003 | Energy Policy2003,,4: | 1 |
| 19 | Disc cam in indexing mechanism with continuous acceleration behavior and computer aided NC programming 显示文摘 | ZHAO Haodong LI Taoyuan GUO Peiquan | 2010 | Journal of Harbin Institute of Technology2010,17,1: | 1 |
| 20 | Dynamic Analysis of Axial Magnetic Forces for DVD Spindle Motors显示文摘The axial magnetic force, induced by the complicated flux linkage distribution from rotor magnet and stator slotted, is constructed by different relative heights and calculated by 3D finite element method (FEM) to analyze the dynamic characteristics for a DVD spindle motor. The axial magnetic force is designed to provide an axial stiffness and govern the natural frequency of the dynamic performance. According to the simulation results and experimental measurements, the dynamic behaviors are significantly improved with a variation of relative height of rotor magnet and stator slotted on a DVD spindle motor. | Chung-Ping Liu (Department of Electrical Engineering, Yuan Ze University, Chungli 320, Taiwan-China) Yeong-Hwa Chang and Tsung-Kun Lin (Department of Electrical Engineering, Chung Cheng Institute of Technology, Taoyuan 335, Taiwan-China) Der-Ray Huang, T | 2000 | Journal of Materials Science & Technology2000,16,2: | 1 |