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| 1 | Progress and significance in research on the early Middle Cambrian Kaili Biota, Guizhou Province, China显示文摘Important progress in research on the Kaili Biota has been made recently. Many interesting components from Chengjiang Biota and Burgess Shale Biota have been discovered, e.g. Microdictyon of lobopodia; Ottoia, Palaeoscolex of worms; Naraoia, Marrella of Trilobitioidea, Mollisonia, anamalocarids and other non-trilobite arthropods; and new sorts of echinoder-mas, macroalage fossils and so on. Recent work on the Kaili Biota has resulted in the following developments: (i) an increase in the number of animal genera, up to more than 100 genera in total, so that the Kaili Biota has become the third most diverse of the Burgess Shale-type Biota after the Burgess Shale and Chengjiang Biotas; and (ii) the most noteworthy fossils in the Kaili Biota are echinoderms, non-trilobite arthropods and soft-bodied medusiform fossils, especially the most diverse echinoderms. The progress provides envidence for the biodiversity of marine organisms presented after the 'Cambrian Explosion' and serves as a link between the earlist Cambrian Chengjiang Biota and late early Middle Cambrian Burgess Shale Biota. It is of great significance in the reconstruction of the Cambrian palaeoplate, palaeongeography and in research on taphonomy. | ZHAO Yuanlong, YUAN Jinliang, ZHU Maoyan, YANG Ruidong, GUO Qingjun, PENG Jin and YANG Xinglian(1. Institute of Paleontology and Biomineralization, School of Resource and Environment, Guizhou University of Technology, Guiyang 550003, China: 2. Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences, Nanjing 210008, China 3. Guiyang Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550003, China) | 2002 | Progress in Natural Science:Materials International2002,12,9: | 20 |
| 2 | Cadmium accumulation and tolerance of two castor cultivars in relation to antioxidant systems显示文摘To investigate the effects of Cd on tolerance and antioxidant activities of castor, two different castor(Ricinus communis L.) cultivars(Zibo No. 5 and Zibo No. 8) were used for a hydroponic experiment(0, 1 and 2 mg/L Cd) and a pot experiment using Cd-contaminated soil(34 mg/kg) with the addition of ethylenedinitrilotetraacetic acid(EDTA). The results indicated that there were significant differences between the two cultivars with respect to Cd uptake in shoots(113–248 mg/kg for Zibo No. 5 and 130–288 mg/kg Zibo No. 8), biomass tolerance indexes(64.9%–74.6% for Zibo No. 5 and 80.1%–90.9% for Zibo No. 8) in the hydroponic experiment and survival rates(0% for Zibo No. 5 and 100% for Zibo No. 8)determined by the addition of EDTA in the pot experiment, suggesting that Zibo No. 8 has higher tolerance than Zibo No. 5. Moreover, the castor cultivars have low bioconcentration factors(4.80% for Zibo No. 5 and 5.43% for Zibo No. 8) and low translocation factors(<1%).Consequently, Zibo No. 8 can participate in Cd phytostabilization in highly Cd-polluted areas. The results indicated that glutathione(GSH) as a non-enzymatic antioxidant, and antioxidant enzymes including superoxide dismutase(SOD), catalase(CAT) and guaiacol peroxidase(GPX), were cultivar- and dose-dependent. The higher tolerance of Zibo No. 8compared with Zibo No. 5 can be attributed to the higher GSH levels in the root and higher GPX activity in the leaf. | Hanzhi Zhang Qingjun Guo Junxing Yang Tongbin Chen Guangxu Zhu Marc Peters Rongfei Wei Liyan Tian Chunyu Wang Deyun Tan Jie Ma Gangming Wang Yingxin Wan | 2014 | Journal of Environmental Sciences2014,26,10: | 15 |
| 3 | Organic Carbon Isotopic Evolution during the Ediacaran-Cambrian Transition Interval in Eastern Guizhou,South China: Paleoenvironmental and Stratigraphic Implications显示文摘摘要:碳的世俗的变化器官的碳的同位素的作文能在全球环境变化,碳周期, stratigraphic 定界线,和生物进化的学习被使用,等等。器官的碳在东方贵州的 Nangao 和 Zhalagou 节的同位素的分析在与不同碳酸盐碳相关的前寒武纪寒武纪的边界附近揭示一次否定旅行在这条边界的同位素的否定旅行全球性。我们的结果也表明几轮流出现积极、否定的移动发生在 Meishucunian,和一个明显的否定异例出现在在 Meishucunian 和 Qiongzhusian 之间的边界。同位素价值在中间、更低的部分是稳定的,但是在 Qiongzhusian 的上面的部分变得更积极。从在深海的外形的二节的器官的碳同位素的进化能很好在浅水外形从节与碳酸盐碳同位素的被相关。与另外的 stratigraphic 工具综合,我们能精确从浅架建立一个更低的寒武纪的 stratigraphic 框架到 Yangtze 站台的深盆。 | YANG Xinglian ZHU Maoyan GUO Qingjun ZHAO Yuanlong | 2007 | Acta Geologica Sinica(English Edition)2007,81,2: | 7 |
| 4 | FY-3A/MERSI, ocean color algorithm, products and demonstrative applications显示文摘A medium resolution spectral imager (MERSI) on-board the first spacecraft of the second generation of China's polar-orbit meteorological satellites FY-3A, is a MODIS-like sensor with 20 bands covering visible to thermal infrared spectral region. FY-3A/MERSI is capable of making continuous global observations, and ocean color application is one of its main targets. The objective is to provide information about the ocean color products of FY-3A/MERSI, including sensor calibration, ocean color algorithms, ocean color products validation and applications. Although there is a visible on-board calibration device, it cannot realize the on-board absolute radiometric calibration in the reflective solar bands. A multisite vicarious calibration method is developed, and used for monitoring the in-flight response change and providing post-launch calibration coefficients updating. FY-3A/MERSI ocean color products consist of the water-leaving reflectance retrieved from an atmospheric correction algorithm, a chlorophyll a concentration (CHL1) and a pigment concentration (PIG1) from global empirical models, the chlorophyll a concentration (CHL2), a total suspended mater concentration (TSM) and the absorption coefficient of CDOM and NAP (YS443) from China's regional empirical models. The atmospheric correction algorithm based on lookup tables and ocean color components concentration estimation models are described. By comparison with in situ data, the FY-3A/MERSI ocean color products have been validated and preliminary results are presented. Some successful ocean color applications such as algae bloom monitoring and coastal suspended sediment variation have demonstrated the usefulness of FY-3A/MERSI ocean color products. | SUN Ling GUO Maohua ZHU Jianhua HU Xiuqing SONG Qingjun | 2013 | Acta Oceanologica Sinica2013,32,5: | 4 |
| 5 | Organic Carbon Isotope Geochemistry of the Neoproterozoic Doushantuo Formation,South China显示文摘The Neoproterozoic Doushantuo Formation on the Yangtze Platform,South China,documents a sedimentary succession with different sedimentary facies from carbonate platform to slope and to deep sea basin,and hosts one of the world-class phosphorite deposits.In these strata,exquisitely preserved fossils have been discovered:the Weng’an biota.This study presents carbon isotope geochemistry which is associated paired carbonate and organic matter from the Weng’an section of a carbonate platform(shelf of the Yangtze Platform,Guizhou Province)from the Songtao section and Nanming section of a transition belt(slope of the Yangtze Platform,Guizhou Province)and from the Yanwutan section(basin area of the Yangtze Platform,Hunan Province).Environmental variations and bio-events on the Yangtze Platform during the Late Neoproterozoic and their causal relationship are discussed.Negative carbon isotope values for carbonate and organic carbon(mean δ13Corg = ?35.0‰)from the uppermost Nantuo Formation are followed by an overall increase in δ13C up-section.Carbon isotope values vary between ?9.9‰ and 3.6‰ for carbonate and between ?35.6‰ and ?21.5‰ for organic carbon,respectively.Heavier δ13Ccarb values suggest an increase in organic carbon burial,possibly related to increasing productivity(such as the Weng’an biota).The δ13C values of the sediments from the Doushantuo Formation decreased from the platform via the slope to basin,reflecting a reduced environment with minor dissolved inorganic carbon possibly due to a lower primary productivity.It is deduced that the classical upwelling process,the stratification structure and the hydrothermal eruption are principally important mechanisms to interpret the carbon isotopic compositions of the sediments from the Doushantuo Formation. | GUO Qingjun LIU Congqiang Harald STRAUSS Tatiana GOLDBERG ZHU Maoyan PI Daohui WANG Jian | 2006 | Acta Geologica Sinica(English Edition)2006,80,5: | 3 |
| 6 | Evaluation of Wind Retrieval from Co-Polarization Gaofen-3 SAR Imagery Around China Seas显示文摘Gaofen-3(GF-3) is the first Chinese space-borne satellite to carry the C-band multi-polarization synthetic aperture radar(SAR). Marine applications, i.e., winds and waves retrieved from GF-3 SAR images, have been operational since January 2017. In this study, we have collected more than 1000 quad-polarization(vertical-vertical(VV); horizontal-horizontal(HH); vertical-horizontal(VH); horizontal-vertical(HV)) GF-3 SAR images, which were acquired around the China Seas from September 2016 to September 2017. Wind streaks were visible in these images in co-polarization(VV and HH) channel. Geophysical model functions(GMFs), including the CMOD5N together with polarization ratio(PR) model and C-SARMOD, were used to retrieve winds from the collected co-polarization GF-3 SAR images. Wind directions were directly obtained from GF-3 SAR images. Then, the SAR-derived wind speeds were compared with the measurements at a 0.25? grid from the Advanced Scatterometer on board the Metop-A/B and microwave radiometer WindSAT. Based on the analysis, empirical corrections are proposed to improve the performance of the two GMFs. Results of this study show that the standard deviation of wind speed is 1.63 m s^(-1) with a 0.19 m s^(-1) bias and 1.71 m s^(-1) with a 0.26 m s^(-1) bias for VV-and HH-polarization GF-3 SAR, respectively. Our work not only systematically evaluates wind retrieval by using the two advanced GMFs and PR models but also proposes empirical corrections to improve the accuracy of wind retrievals from GF-3 SAR images around the China Seas and thus enhance the accuracy of near real-time operational SAR-derived wind products. | SHAO Weizeng ZHU Shuai SUN Jian YUAN Xinzhe SHENG Yexin ZHANG Qingjun JI Qiyan | 2019 | Journal of Ocean University of China2019,18,1: | 3 |
| 7 | Sulfate sources constrained by sulfur and oxygen isotopic compositions in the upper reaches of the Xijiang River,China显示文摘While it is critical to accurately understand the sources and transformation of sulfate based on time-series analysis, there are limited studies on temporal variation of sulfate in rivers and on rock weathering by sulfuric acids.We conducted a monthly sampling campaign in the Beipan, Nanpan, and Hongshui Rivers over the course of one hydrological year. This study examined seasonal variations in riverine sulfate impacted by the monsoon climate in the upper reaches of the Xijiang River basin. In general, the SO_4^(2-) contents in these rivers dropped from relatively high levels to low values during the high-flow season, in response to increasing discharge. The sulfate was generally enriched in heavy isotopes during the low-flow season compared to the high-flow season. The calculated results indicate that the riverine sulfate was mainly derived from sulfide oxidation, but that evaporite dissolution could be an important source during the low-flow season, based on isotopic evidence. Mine drainage is likely an important source of sulfate to these rivers during the high-flow season due to contributions from fast surface flow, which responds to frequent heavy rain in monsoonal climate regions. Arelatively high proportion of HCO_3^- was found to be derived from rock weathering by sulfuric acid during the high-flow season when compared to that observed during the low-flow season. The results suggest that approximately one quarter of the HCO_3^- in the Hongshui River originated from carbonate weathering by sulfuric acid derived from the oxidation of sulfide. Such information on the specific dual isotopic characteristics of riverine sulfate throughout a hydrological year can provide unique evidence for understanding the temporal variability of sulfate concentrations and weathering processes in rivers. | Jing Liu Siliang Li Jun Zhong Xuetao Zhu Qingjun Guo Yunchao Lang Xiaokun Han | 2017 | Acta Geochimica2017,36,4: | 2 |
| 8 | The study of methanol-to-olefin over proton type aluminosilicate CHA zeolites 显示文摘 | Zhu Qingjun Kondo Junko N Ohnuma Ryosuke | 2008 | Microporous and Mesoporous Materials2008,112,123: | 1 |
| 9 | Scalable, fluorine free and hot water repelling superhydrophobic and superoleophobic coating based on functionalized Al_(2)O_(3) nanoparticles显示文摘Hot water droplet and oils induced air cushion failure, intensively used fluorine-containing chemicals,tedious preparation process, etc. are the main bottlenecks of the current artificially fabricated superhydrophobic materials, restricting their large-scale production and real-world applications. Herein, a facile,scalable, fluorine-free spray-coating strategy was employed to achieve superhydrophobic and superoleophobic polymerized organosilanes/Al2O3 nanoparticles(POS/Al_(2)O_(3) NPs) coatings. The POS/Al_(2)O_(3) NPs coating was achieved through hydrolytic condensation of tetraethyl orthoilicate(TEOS) and hexadecyltrimethoxysilane(HDTMS) in the presence of Al2O3 NPs. A variety of analytical techniques including scanning electron microscopy(SEM), X-ray photoelectron spectroscopy(XPS), energy dispersive X-ray photoelectron spectroscopy(EDS) were used to investigate the fabricated coatings. The POS/Al_(2)O_(3) NPs coating features high contact angle(>158°) and low sliding angle(<5°) for water, glycerol, and ethylene glycol droplets with different surface tensions, verifying both superhydrophobic and superoleophobic properties. Moreover, the coatings present extremely low surface adhesion force, excellent liquid-driven self-cleaning ability, and hot water repellency. The superamphiphobic POS/Al_(2)O_(3) NPs coating exhibits promising applications in various fields including self-cleaning, corrosion resistance, and preventing scald as this strategy is applicable on various substrates. | Binbin Zhang Weichen Xu Qingjun Zhu Baorong Hou | 2021 | Journal of Materials Science & Technology2021,,7: | 1 |
| 10 | Effect of superfine pulverization on properties of Astragalus membranaceus powder显示文摘 | Xiaoyan Zhao Fangling Du Qingjun Zhu Denglin Qiu Weijun Yin Qiang Ao | 2010 | Powder Technology2010,,: | 1 |
| 11 | Effect of superfine pulverization on properties of Astragalus membranaceus powder显示文摘 | ZHAO Xiaoyan DU Fangling ZHU Qingjun | 2010 | Powder Technology2010,203,3: | 1 |
| 12 | Effect of superfine pulverization on properties of Astragalus membranaceus powder显示文摘 | ZHAO Xiaoyan DU Fangling ZHU Qingjun | 2010 | Powder Technology2010,203,3: | 1 |
| 13 | A pH-responsive mesoporous silica nanoparticles-based drug delivery system with controlled release of andrographolide for OA treatment显示文摘Andrographolide(AG)has favorable anti-inflammatory and antioxidative capacity.However,it has low bioavailability due to high lipophilicity and can be easily cleared by the synovial fluid after intra-articular injection,leading to low therapeutic efficiency in osteoarthritis(OA).Herein,we designed a nano-sized pH-responsive drug delivery system(DDS)for OA treatment by using modified mesoporous silica nanoparticles(MSNs)with pH-responsive polyacrylic acid(PAA)for loading of AG to form AG@MSNs-PAA nanoplatform.The nanoparticles have uniform size(120 nm),high drug loading efficiency(22.3860.71%)and pH-responsive properties,beneficial to sustained release in OA environment.Compared with AG,AG@MSNs-PAA showed enhanced antiarthritic efficacy and chondro-protective capacity based on IL-1b-stimulated chondrocytes and anterior cruciate ligament transection-induced rat OA model,as demonstrated by lower expression of inflammatory factors and better prevention of proteoglycan loss.Therefore,the AG@MSNs-PAA nanoplatform may be developed as a promising OA-specific and on-demand DDS. | Mingwei He Zainen Qin Xiaonan Liang Xixi He Bikang Zhu Zhenhui Lu Qingjun Wei Li Zheng | 2021 | Regenerative Biomaterials2021,8,4: | 1 |
| 14 | The study of methanol-to-olefin over proton type aluminosilicate CHA zeolites显示文摘 | ZHU Qingjun KONDO J N OHNUMA R | | 0,,1: | 1 |
| 15 | Screening natural antioxidants in peanut shell using DPPH-HPLC-DAD-TOF/MS methods显示文摘 | Qiu Jiying Chen Leilei Zhu Qingjun | | 0,,04: | 1 |
| 16 | A comparative study of methanol to olefin over CHA and MTF zeolites显示文摘 | ZHU Qingjun KONDO J N TATSUMI T | 2007 | Journal of Physical Chemistry C2007,111,14: | 1 |
| 17 | Surface characterization of 7s and 11S globulin powders from soy protein examined by X-ray photoelectron spectroscopy and scanning electron microscopy显示文摘 | Zhao Xiaoyan Chen Jun Zhu Qingjun | 2011 | Colloids and Surfaces B: Biointerfaces2011,86,2: | 1 |
| 18 | Washing out heavy metals from contaminated soils from an iron and steel smelting site显示文摘洗是为由化学动员分开土壤 ex-situ 的粒子一定的沾染物的一个有希望的方法。实验室批洗实验用 deionized 水和草酸酸的变化集中被进行,柠檬性的酸的、酒石的酸,醋酸,盐酸酸和 ethylenediaminetetra 醋酸( EDTA )弄脏估计把这些化学药品用作洗代理人的效率并且重重地从二清理重金属从一个熨斗和 streel 熔炼地点的土壤。毒性减小索引和补习费用被分析,并且结果证明土壤与 Cd, Pb 和 Zn 被弄脏。盐酸酸和 EDTA 是比在测试土壤的补习的另外的洗的代理人更有效的。最大的全部的毒性减小索引显示出毛孔散开不是在吸附过程的限制率的步的那 0.5 molggests。覰?覰?? | Guangxu ZHU Qingjun GUO Junxing YANG Hanzhi ZHANG Rongfei WEI Chunyu WANG Marc PETERS Xiaoyong ZHOU Jun YANG | 2015 | Frontiers of Environmental Science & Engineering2015,9,4: | 1 |
| 19 | Research on the icephobic properties of fluoropolymer-based materials显示文摘 | Shuqing Yang Qiang Xia Lin Zhu Jian Xue Qingjun Wang Qing-min Chen | 2011 | Applied Surface Science2011,,11: | 1 |
| 20 | Synthesis of Fe-based amorphous composite coatings with low purity materials by laser cladding显示文摘 | Zhu Qingjun Qu Shiyao Wang Xinhong | 2007 | Applied Surface Science2007,253,: | 1 |