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  1. 2161

    BẤT ĐẲNG THỨC LOJASIEWICZ CHO CÁC HÀM ĐỊNH NGHĨA ĐƯỢC TRONG CẤU TRÚC O-TỐI TIỂU TRÊN TRƯỜNG THỰC ĐÓNG by Trần Thống Nhất

    Published 2014-09-01
    “…., Vol. 18, No. 2, (2007), 556-572.], bài báo cáo này đưa ra một số kết quả về bất đẳng thức Lojasiewicz cho các hàm định nghĩa đươc trong cấu trúc o-tối tiểu trên trường thực đóng R. …”
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  2. 2162
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  4. 2164

    Crise do capitalismo e a questão social: constribuições ao debate by Sandra de Faria

    Published 2022-02-01
    “…  No artigo, as reflexões sobre a crise do capitalismo e a ques- tão social articulam elementos da relação de exploração da força de trabalho pelo capital, com ênfase no contexto sócio-histórico mundial da crise do capitalismo, após 1970, no neoliberalismo e a reestrutura- ção produtiva, a pós-modernidade e neoconservadorismo. …”
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  5. 2165

    Determination of the Sediment Carrying Capacity Based on Perturbed Theory by Zhi-hui Ni, Qiang Zeng, Wu Li-chun

    Published 2014-01-01
    “…After that, the new formula was verified through measuring data of natural rivers and flume tests and comparing the verified results calculated by Cao Formula, Zhang Formula, Li Formula, Engelung-Hansen Formula, Ackers-White Formula, and Yang Formula. …”
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  6. 2166

    Application of Nuclear Analytical Techniques in Elemental Characterization of Wadi El-Nakhil Alabaster, Central Eastern Desert, Egypt by Zain M. Alamoudi, A. El-Taher

    Published 2016-01-01
    “…The chemical analysis of alabaster indicated having high contents of CaO and MgO and LOI and low contents of SiO2, Al2O3, Na2O, K2O, MnO, and Fe2O3.…”
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  7. 2167

    Chemical, Mineralogical, and Morphological Properties of Steel Slag by Irem Zeynep Yildirim, Monica Prezzi

    Published 2011-01-01
    “…The XRD analyses indicated the presence of free MgO and CaO in both the BOF and EAF(L) slag samples. SEM micrographs showed that the majority of the sand-size steel slag particles had subangular to angular shapes. …”
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  8. 2168

    Effects of Additives and Sintering Time on the Microstructure of Ni-Zn Ferrite and Its Electrical and Magnetic Properties by Abdollah Hajalilou, Mansor Hashim, Halimah Mohamed Kamari

    Published 2014-01-01
    “…This work aims to investigate the relationship between the microstructure of Ni-Zn ferrite and its electrical and magnetic properties in the presence and absence of as small amounts as 0.12% of 0.4CaO + 0.8SiO2 over different sintering times. The X-ray diffraction pattern showed a single spinel phase formation in all the samples. …”
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  9. 2169

    The possibility of using high-quality fused magnesia in the manufacture of crucibles for vacuum-induction melting by B. L. Krasnii, K. I. Ikonnikov, V. S. Anikanov, A. L. Galganova, M. A. Mikhailov

    Published 2019-10-01
    “…The physical and mechanical characteristics of the obtained products are given. The effect of the CaO/SiO2 ratio on the corrosion and erosion resistance of products is considered. …”
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  10. 2170

    The Effect of Synthetic Hydrated Calcium Aluminate Additive on the Hydration Properties of OPC by Jolanta Doneliene, Anatolijus Eisinas, Kestutis Baltakys, Agne Bankauskaite

    Published 2016-01-01
    “…The effect of synthetic CAH (130°C; 8 h; CaO/(SiO2 + Al2O3) = 0.55; Al2O3/(SiO2 + Al2O3) = 0.1, 0.15) with different crystallinity on the hydration kinetics of OPC at early stages of hydration was investigated. …”
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  11. 2171

    Cumulative damage characteristics of tunnel initial support concrete under blasting load by Yan Zhao, Zhuang Zhang, Lijie Ge, Lingling Xu, Huadong Zhao, Mingzan Yu

    Published 2025-01-01
    “…Abstract Relying on the Beijing-Zhangjiakou high-speed railway Cao Mao Shan tunnel project, blasting vibration monitoring and sound wave testing experiments were carried out. …”
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  12. 2172

    Gold recovery from flotation concentrate from gold mine tailings using dissolve smelting by Erdenebold U., Sung C.-M., Wang J.-P.

    Published 2019-01-01
    “…Gold greatly dissolved at 1600°С under a CaO/SiO2 ratio of 1.25, suggesting the increase in the dissolution of gold into molten copper with decreasing viscosity of the molten slag-like concentrate at high temperatures.…”
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  13. 2173
  14. 2174

    Reduction kinetics of lead-rich slag with carbon in the temperature range of 1073 to 1473K by Hou X., Chou K.C., Zhao B.

    Published 2013-01-01
    “…The difference of the activation energy between industrial sinter and synthetic slag can be explained by the difference in their CaO/SiO2 ratios.…”
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  15. 2175

    O ensino de matemática e o tratamento das informações na educação de jovens e adultos by Ana Maria Severiano de Paiva, Ilydio Pereira de Sá

    Published 2011-06-01
    “… Este relato apresenta reflexões e atividades relacionadas ao ensino da matemática em classes de educa- ção de jovens e adultos (EJA). Partimos de considerações sobre a prática docente articulada à necessida- de de conhecer quem são os sujeitos. …”
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  16. 2176

    Acute Coronary Artery Occlusion during Transcatheter Aortic Valve Replacement in a Patient with an Anomalous Left Circumflex Coronary Artery by Rongfeng Xu, Jiandong Ding, Lijuan Chen, Yi Feng, Genshan Ma

    Published 2022-01-01
    “…Acute coronary artery occlusion (CAO) during transcatheter aortic valve replacement (TAVR) is a rare but life-threatening complication during the procedure; there were a few case reports about an anomalous LCX during perioperative period. …”
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  17. 2177

    Green Biodiesel Synthesis Using Waste Shells as Sustainable Catalysts with Camelina sativa Oil by Yelda Hangun-Balkir

    Published 2016-01-01
    “…Most waste shells are CaCO3 rich, which are converted to CaO once calcined and can be employed as inexpensive and green catalysts for the synthesis of biodiesel. …”
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  18. 2178

    Experimental Study on the Distribution Trends of Fouling on a Compressor Blade by Jie Tang, Dianrong Gao, Liwen Wang, Jinjian Huo

    Published 2020-01-01
    “…Using the waste liquid collected from the engine during the wing water washing process as a data sample, the main components of compressor blade surface fouling were analysed, which included 49.9% SiO2, 14.5% FeO, 11.5% Al2O3, 9.4% CaO, etc. Based on JKR contact theory, a model for calculating the total thickness of the fouling layer on the blade surface was established. …”
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  19. 2179

    Extracting lithium from a lithium aluminate complex by vacuum aluminothermic reduction by Di Y.Z., Peng J.P., Wang Y.W., Feng N.X.

    Published 2018-01-01
    “…In addition, the reduction slag consists mainly of 12CaO•7Al2O3, which can be used to produce aluminum hydroxide. …”
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  20. 2180

    Influence of Chemical Corrosion on Dynamic Fracturing Mechanical Behavior of Marbles by Chunmei Zheng, Jiayan Zheng, Xiaojuan Peng, Lei Zhou

    Published 2022-01-01
    “…With T increases, the contents of CaO, MgO, and Al2O3 in specimen increase, indicating that the degree of corrosion damage increases.…”
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