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BẤT ĐẲNG THỨC LOJASIEWICZ CHO CÁC HÀM ĐỊNH NGHĨA ĐƯỢC TRONG CẤU TRÚC O-TỐI TIỂU TRÊN TRƯỜNG THỰC ĐÓNG
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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2162
CAMELLIA QUYNHII (THEACEAE, SECT. STEREOCARPUS), A NEW YELLOW SPECIES FROM THE CENTRAL HIGHLANDS, VIETNAM
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2163
CHIẾN THẮNG ĐƯỜNG 14, PHƯỚC LONG – CHÌA KHÓA MỞ RA ĐẠI THẮNG MÙA XUÂN 1975
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2164
Crise do capitalismo e a questão social: constribuições ao debate
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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2165
Determination of the Sediment Carrying Capacity Based on Perturbed Theory
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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2166
Application of Nuclear Analytical Techniques in Elemental Characterization of Wadi El-Nakhil Alabaster, Central Eastern Desert, Egypt
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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2167
Chemical, Mineralogical, and Morphological Properties of Steel Slag
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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2168
Effects of Additives and Sintering Time on the Microstructure of Ni-Zn Ferrite and Its Electrical and Magnetic Properties
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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2169
The possibility of using high-quality fused magnesia in the manufacture of crucibles for vacuum-induction melting
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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2170
The Effect of Synthetic Hydrated Calcium Aluminate Additive on the Hydration Properties of OPC
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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2171
Cumulative damage characteristics of tunnel initial support concrete under blasting load
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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2172
Gold recovery from flotation concentrate from gold mine tailings using dissolve smelting
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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2173
Solvent Extraction of Thorium Using 5,11,17,23-Tetra[(2-ethyl acetoethoxyphenyl)(azo)phenyl]calix[4]arene
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2174
Reduction kinetics of lead-rich slag with carbon in the temperature range of 1073 to 1473K
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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2175
O ensino de matemática e o tratamento das informações na educação de jovens e adultos
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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2176
Acute Coronary Artery Occlusion during Transcatheter Aortic Valve Replacement in a Patient with an Anomalous Left Circumflex Coronary Artery
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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2177
Green Biodiesel Synthesis Using Waste Shells as Sustainable Catalysts with Camelina sativa Oil
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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2178
Experimental Study on the Distribution Trends of Fouling on a Compressor Blade
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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2179
Extracting lithium from a lithium aluminate complex by vacuum aluminothermic reduction
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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2180
Influence of Chemical Corrosion on Dynamic Fracturing Mechanical Behavior of Marbles
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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