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| 1 | Geochemical characterization of Cretaceous sandstones from the Southern Benue Trough, Nigeria显示文摘Geochemical studies of sandstones from the three lithostratigraphic successions in the southern Benue Trough of Nigeria were undertaken for a geochemical characterization of the sandstones, and to assess their strati-graphic and source evolution. Major and trace elements data were obtained from outcrop sandstone samples. The SiO2/Al2O3, Fe2O3/K2O ratios and CaO contents have been used to characterize the Cretaceous sandstones into Al-rich and high and low Fe2O3/K2O ratio sandstones. Results indicate that there are geochemical features that display stratigraphic trends across the succession from the Asu River Group, Eze-Aku Group to the proto-Niger Delta succession which may imply a discontinuous evolution from different source terrains of Precambrian and Mesozoic ages that supplied the sediments. The Asu River Group sandstones have lower SiO2, Al2O3, Fe2O3 and higher MgO; the Eze-Aku sandstones have higher TiO2, CaO, alkalis and lower MgO while the proto-Niger Delta sandstones have higher SiO2, Al2O3, Fe2O3 and lower alkalis and CaO. These discontinuities signify the influence of tectonic impulses that af- fected the southern Benue Trough during the Cretaceous time. Changes in ratios of TiO2/Al2O3, Fe2O3, Cr and Zr suggest an increasingly mafic contribution to the depositional basin with time. The chemical index of alteration increases with time, possibly suggesting that a more intense weathering regime in the hinterland developed with time. | Odigi M.I. Amajor L.C. | 2009 | Chinese Journal Of Geochemistry2009，28，1： | 9 |
| 2 | Microbial Diversity and Community Structure of Postdisturbance Forest Soils as Determined by Sole-Carbon-Source Utilization Patterns显示文摘 | W.J. Staddon L.C. Duchesne J.T. Trevors | 1997 | Microbial Ecology1997，，2： | 4 |
| 3 | Measurement of shear movements in the overburden strata ahead of longwall mining显示文摘An underground coal mine located in New South Wales has a target coal seam located 160–180 m deep directly below a 16–20 m thick conglomerate unit that has been associated with significant periodic weighting events on the longwall face. As part of the investigations to better understand the causes of periodic weighting at the mine,inclinometers capable of measuring horizontal shear movements through the full section of the overburden strata were installed ahead of mining at two locations approximately1 km apart above the centre of two longwall panels. These inclinometers were monitored as the longwall approached each site. This paper presents the details of the installation,the results of the inclinometer monitoring at both sites,and the insights that these measurements provide for overburden behaviour about longwall panels. Horizontal shear movements were observed to develop on shear horizons that correlate closely across the two sites suggesting a mechanism that is consistent across a large area of the mine. Shear movements were observed to develop on a single horizon near the top of the conglomerate strata that was mobilised almost immediately after initial formation of the longwall goaf at a distance of 425 m ahead of the longwall face. | Mills K.W. GarrattO. Blacka B.G. Daigle L.C. Rippon A.C. Walker R.J. | 2016 | International Journal of Mining Science and Technology2016，26，1： | 4 |
| 4 | Method development for the determination of cadmium in fertilizer samples using high-resolution continuum source graphite furnace atomic absorption spectrometry and slurry sampling显示文摘 | Aline R. Borges Emilene M. Becker Céline Lequeux Maria Goreti R. Vale Sergio L.C. Ferreira Bernhard Welz | 2011 | Spectrochimica Acta Part B: Atomic Spectroscopy2011，，7： | 3 |
| 5 | era基因的高表达显示文摘为了高表达产生Era蛋白,借助计算机从Gene Bank中寻找N端几个氨基酸序列与Era相同的蛋白质,选其中能在大肠杆菌内高表达的λ Ea8.5蛋白,以其基因5’端序列替代天然era基因5’端序列,从而赋予era基因转录物以强的翻译起始信号,而不改变其编码的氨基酸序列。将此重组era基因置于P_L启动子下游、构建得质粒pCE31,引入大肠杆菌TAP106,经诱导后大量合成Era蛋白,且其他蛋白质的合成显著被抑制,从而使Era的含量能超过菌体总蛋白量的80%。经简单裂菌、洗涤步骤,就获得具有能特异结合鸟苷酸活性的、电泳单带纯的Era蛋白。 | 陈苏民 Donald,L.C. | 1991 | 生物工程学报1991，7，3： | 3 |
| 6 | PREPARATION OF THE OPEN PORE ALUMINUM FOAMS USING INVESTMENT CASTING PROCESS显示文摘This paper briefly presents characteristics, application and development of the metallic foams. Sound specimen has been achieved with preparing foam aluminum by using investment casting process. The preparation of plaster prefabricated mould is one key in investment casting. Main composition, ingredient and affecting factors of plaster mould are also discussed and the vacuum-infiltrated shaping technique was found to be another important link. The penetrating model and the affecting mechanism of the main parameters were also analyzed. As a result, the optimum values were determined. | L.C. Wang and F. Wang (Taiyuan Heavy Machinery Institute, Taiyuan 030024, China) | 2001 | Acta Metallurgica Sinica(English Letters)2001，14，1： | 3 |
| 7 | Two Axes Solar Tracker Based on Solar Maps, Controlled by a Low-Power Microcontroller显示文摘 | F. Duarte P.D. Gaspar L.C. Goncalves | 2011 | Journal of Energy and Power Engineering2011，5，7： | 3 |
| 8 | A review of the present and future utilisation of FRP composites in the civil infrastructure with reference to their important in-service properties显示文摘 | L.C. Hollaway | 2010 | Construction and Building Materials2010，，12： | 3 |
| 9 | Significance of Inducible Defense-related Proteins in Infected Plants显示文摘 | L.C. van Loon M. Rep C.M.J. Pieterse | 2006 | Annual Review of Phytopathology2006，，： | 2 |
| 10 | Metal–organic frameworks: a new class of porous materials显示文摘 | Jesse L.C. Rowsell Omar M. Yaghi | 2004 | Microporous and Mesoporous Materials2004，，1： | 2 |
| 11 | Constitutive modelling of plasticity of fcc metals under extremely high strain rates显示文摘 | C.Y. Gao L.C. Zhang | 2011 | International Journal of Plasticity2011，，： | 2 |
| 12 | The learning styles and strategies of effective language learners显示文摘 | Lillian L.C. Wong David Nunan | 2011 | System2011，，2： | 2 |
| 13 | Is silicene the next graphene?显示文摘 | L.C. Lew Yan Voon G.G. Guzmán-Verri | 2014 | MRS Bulletin2014，，： | 2 |
| 14 | The Effect of pH and Plaque on the Uptake of Cu and Mn in Phragmites australis (Cav.) Trin ex. Steudel显示文摘 | L.C. Batty A.J.M. Baker B.D. Wheeler C.D. Curtis | 2000 | Annals of Botany2000，，3： | 2 |
| 15 | Guava extract (Psidium guajava) alters the labelling of blood constituents with technetium-99m显示文摘Psidium guajava (guava) leaf is a phytotherapic used in folk medicine to treat gastrointestinal and respiratory dis-turbances and is used as anti-inflammatory medicine. In nuclear medicine, blood constituents (BC) are labelled with techne-tium-99m (99mTc) and used to image procedures. However, data have demonstrated that synthetic or natural drugs could modify the labelling of BC with 99mTc. The aim of this work was to evaluate the effects of aqueous extract of guava leaves on the labelling of BC with 99mTc. Blood samples of Wistar rats were incubated with different concentrations of guava extract and labelled with 99mTc after the percentage of incorporated radioactivity (%ATI) in BC was determined. The results suggest that aqueous guava extract could present antioxidant action and/or alters the membrane structures involved in ion transport into cells, thus decreasing the radiolabelling of BC with 99mTc. The data showed significant (P<0.05) alteration of ATI in BC from blood incubated with guava extract. | ABREU P.R.C. ALMEIDA M.C. BERNARDO R.M. BERNARDO L.C. BRITO L.C. GARCIA E.A.C. FONSECA A.S. BERNARDO-FILHO M. | 2006 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2006，7，6： | 2 |
| 16 | Adsorption of dyes and heavy metal ions by chitosan composites: A review显示文摘 | W.S. Wan Ngah L.C. Teong M.A.K.M. Hanafiah | 2010 | Carbohydrate Polymers2010，，4： | 2 |
| 17 | Joining 6061 aluminum alloy with Al–Si–Cu filler metals显示文摘 | S.Y. Chang L.C. Tsao T.Y. Li T.H. Chuang | 2009 | Journal of Alloys and Compounds2009，，1： | 2 |
| 18 | 美国大坝安全显示文摘美国国家大坝安全协会是一个教育性的慈善组织,已为美国大坝安全连续工作了20余年。介绍了该协会的发展历程和相关职责及其面临的挑战。 | L.C.斯普拉金斯 黄灿璨(译) 黄建和(校) | 2006 | 水利水电快报2006，27，9： | 2 |
| 19 | Ab initio simulations of silicene hydrogenation显示文摘 | Tim H. Osborn Amir A. Farajian Olga V. Pupysheva Rachel S. Aga L.C. Lew Yan Voon | 2011 | Chemical Physics Letters2011，，： | 2 |
| 20 | Cutting composites: A discussion on mechanics modelling显示文摘 | L.C. Zhang | 2008 | Journal of Materials Processing Tech2008，，9： | 1 |
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