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13篇 您的检索式:作者名="ZURAIDA"
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1Stable carbon and oxygen isotopes of four planktonic foraminiferal species from core-top sediments of the Indonesian throughflow region and their significance显示文摘Horizontal and vertical distributions of δ^(18)O and δ^(13)C were investigated in shells of four planktonic foraminiferal species, Globigerinoides ruber, Globigerinoides sacculifer, Pulleniatina obliquiloculata and Neogloboquedrina dutertrei, from a total of 62 core-top sediment samples from the Indonesian throughflow region. Results were compared to modern hydrologic conditions in order to explore potential of proxies in reconstructing fluvial discharge and upper ocean water column characteristics in this region. Our results show that, in the Makassar Strait, both of depleted δ^(18)O and δ^(13)C of these four species were linked to freshwater input. In the Bali Sea,however, depleted δ^(18)O and δ^(13)C for these species may be due to different reasons. Depleted δ^(18)O was a result of freshwater input and as well influenced by along-shore currents while depleted δ^(13)C was more likely due to the Java-Sumatra upwelling. Comparison of shell δ^(18)O records and hydrographic data of World Ocean Atlas 2005 suggests that G. ruber and G. sacculifer calcify within the mixed-layer, respectively at 0–50 m and 20–75 m water depth, and P. obliquiloculata and N. dutertrei within the upper thermocline, both at 75–125 m water depth. N.dutertrei calcifies at slightly deeper water depth than P. obliquiloculata does. In general, δ^(13)C values of both G.ruber and G. sacculifer are larger than those of P. obliquiloculata and N. dutertrei at all sites, possibly related to depth habitats of these species and vertical distribution of nutrients in the Indonesian throughflow region.ZHANG Peng ZURAIDA Rina XU Jian YANG Ce 2016Acta Oceanologica Sinica2016,35,10:3
2印尼海区浮游有孔虫壳体Mg/Ca值的LA-ICP-MS原位微区分析显示文摘激光剥蚀电感耦合等离子质谱仪(Laser Ablation-Inductively Coupled Plasma-Mass Spectrometer,LA-ICP-MS)为更详细地探索微量元素在有孔虫方解石壳体中的分布提供了可能,也为有孔虫壳体Mg/Ca值测试提供了一种新的方法。利用LA-ICP-MS技术对擭取自印尼海区的11个钻孔顶部沉积样品中的多枚Globigerinoides ruber壳体进行了共173点位的激光剥蚀Mg/Ca值原位微区和深度分析,发现不同壳体、同一壳体不同房室以及同一房室不同部位之间,从壳壁外部到内部Mg/Ca值的变化是不同的。随后,将利用LA-ICP-MS获得的Mg/Ca值与利用常规测试手段获得的Mg/Ca值进行对比,结果表明利用LA-ICP-MS测试浮游有孔虫壳体Mg/Ca值,不但可以避免常规测试复杂的前处理过程,减少化学药品对实验人员健康的危害,也具有较好的准确度和可靠性。张鹏 Rina Zuraida 袁洪林 徐建 高莲凤 张振国 杨策 2016地球科学进展2016,31,5:3
3Factors affecting delivery and transient expression of gusA gene in Malaysian indica rice MR 219callus via biolistic gun system显示文摘Zuraida AR Rahiniza K Hafiza MRN 0,,51:1
4The biogenic silica variation and paleoproductivity evolution in the eastern Indian Ocean during the past 20 000 a显示文摘The biogenic silica of sediment samples from Core CJ01-185 which is collected from the eastern India Ocean off the Sunda Strait is analyzed to evaluate the impact of the opening of the Sunda Strait on a paleoproductivity evolution. The new results indicate that the biogenic silica mass values of Core CJ01-185 show the lowest 0.86% in the last glacial period, and reach its maxima of 1.89% in the late Holocene. Furthermore, the biogenic silica mass accumulation rate(MARBSi) values also vary with much higher during the late Holocene than during the last glaciation. The input of additional terrigenous materials from the Java Sea has enhanced the paleoproductivity and increased the biogenic silica mass and MARBSi values after the opening of the Sunda Strait. It is suggested that the paleoproductivity in the study area is mainly influenced by the southeast monsoon and upwelling before the opening of the Sunda Strait. However, the paleoproductivity is dominated by the terrigenous materials input other than by the southeast monsoon or upwelling in the Holocene.Yonghang Xu Liang Wang Zhikun Lai Xiaohui Xu Feng Wang Shengfa Liu Xuefa Shi Rainer Arief Troa Rina Zuraida Eko Triarso Marfasran Hendrizan 2019Acta Oceanologica Sinica2019,38,1:1
5Effectiveness of PGPR inoculation in the presence of nitrogen and carbon sources on growth of in vitro banana plantlets显示文摘Maziah M Zuraida A R Halimi M S 2009Advances in Environmental Biology2009,3,2:1
6Improvement in mechanical properties of reinforced thermoplastic elastomer composite with kenaf bast fibre显示文摘Anuar H Zuraida A 2011Composites: Part B2011,42,:1
7Gender influences on psychop- athology and functionality in schizophrenia in university malaya medical centre,kuala lumpur, malaysia 显示文摘Zuraida NZ Gill JS Koh OH 2009Malaysian Journal of Psychiatry2009,18,1:1
8Regeneration of Malaysian indica rice(Oryza sativa) variety MR232 via optimized somatic embryogenesis system显示文摘Zuraida A R Suri R Wan Z 2010Journal of Phytology2010,2,3:1
9Improvement of mechanical properties of injection-molded polylacticacid-kenaf fiber biocomposite显示文摘Anuar H Zuraida A Kovacs J G 2011J Thermoplast Compos Mater2011,25,2:1
10Improvement of mechanical properties of injection-molded polylactic acid-kenaf fiber biocomposite显示文摘ANUAR H ZURAIDA A KOVACS J G 0,,2:1
11Antibacterial activity of coconut shell liquid smoke( CS - LS) and its application on fish ball preservation 显示文摘ZURAIDA I SUKARNO BUDIJANTO S 2011International Food Research Journal2011,,18:1
12嵌入Stabilized Barzilai-Borwein步长的一阶随机优化算法研究显示文摘近年来,机器学习发展迅速,在广泛应用于各个领域的同时取得了许多理论突破。它为系统提供访问数据的能力,通过从过去的经验中学习和改进来解决复杂问题,使机器能够执行认知功能。文中将基于改进的Stabilized Barzilai-Borwein(SBB)方法自动计算步长,与SVRG结合形成新的算法SVRG-SBB,并从理论上证明新算法收敛,能够有效地解决机器学习中的常见问题。史卫娟 Adibah Shuib Zuraida Alwadood 2021现代信息科技2021,5,15:0
13Geochemical characteristics from tests of four modern planktonic foraminiferal species in the Indonesian Throughflow region and their implications显示文摘Test geochemistry of planktonic foraminifera is an indispensable tool in reconstructing past ocean hydrological changes. It is essential to investigate region-specific implications of test geochemistry,although those established from other regions can be broadly applied. In this study, characteristics of6180 and Mg/Ca from tests of four planktonic foraminiferal species, Globigerinoides ruber sensu stricto(s.s.), Globigerinoides sacculifer, Pulleniatina obliquiloculata and Neogloboquadrina dutertrei, from 60 coretop sediment samples retrieved from the Indonesian Throughflow(ITF) region were studied. These geochemical data were compared with modern hydrographic profiles in order to assess their relations and to investigate potential implications of test geochemical parameters in reconstructing past oceanographic change in the ITF region. Calcification depths of these four species were first estimated based on comparison between measured test δ180 and predicted calcite δ^(18)O that was calculated from modern temperature and salinity. The results indicate that G. ruber s.s. and G. sacculifer calcify within the mixedlayer at 0-50 m and 20-75 m, respectively, whereas P. obliquiloculata and N. dutertrei calcify within the thermocline at around 75 to 125 m. A combined study of excess Mg/Ca(difference between measured and predicted Mg/Ca) and salinity suggests that salinity exerts a negligible impact on test Mg/Ca of these foraminiferal species in the ITF region. Comparison of test Mg/Ca-derived temperatures with temperature profiles of the upper 200 m of the water column from the seas of the ITF region also indicate calcification depths of these species, which match well with the above estimations using test δ^(18)O. It further indicates that G. sacculifer may be more sensitive in reflecting changes in the depth of the mixedlayer, highlighting a potential use of Mg/Ca temperature difference between G. ruber s.s. and G. sacculifer in reconstructing the depth of the mixed-layer in the ITF region.Peng Zhang Rina Zuraida Yair Rosenthal Ann Holbourn Wolfgang Kuhnt Jian Xu 2019Geoscience Frontiers2019,10,2:0
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