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2221
STUDY ON IN VITRO PROPAGATION AND CULTIVATION OF ANOECTOCHILUS LYLEI ROLFE EX DOWNIES AT EX VITRO CONDITION
Published 2017-01-01Get full text
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2222
THUYẾT HẬU THUỘC ĐỊA Ở VIỆT NAM
Published 2012-03-01“…Cùng với việc phân tích, lý giải hiện trạng đó, bài báo đặc biệt tập trung đề xuất một số hướng giải quyết vừa thiết thực trước mắt vừa cơ bản lâu dài, nhằm góp phần đẩy mạnh hoạt động sáng tạo, nghiên cứu văn hóa - văn chương nước nhà lên một trình độ và chất lượng mới, đáp ứng những đòi hỏi ngày một cao của dân tộc và thời đại.…”
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2223
Influence of tundish flux on reoxidation behavior of Al-killed Ti-containing stainless steel
Published 2025-03-01“…Rice husk ash (RHA) and MgO (M) insulation powders, and calcium aluminate, CaO–Al2O3 (CA) based flux were used for the experiments. …”
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2224
Uncovering the Hydrocracking Efficiency of Iron-Based Catalysts: A Novel Approach to Asphaltene Transformation in Iranian Heavy Oil
Published 2024-06-01“…A series of catalyst precursors, encompassing FeSO4·H2O, its binary mixtures with metal oxides (Fe2O3, Al2O3, CaO, SiO2), and combinations of Fe2O3, Al2O3, and SiO2 with elemental sulfur, were evaluated. …”
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2225
Research on Mandatory Lane-Changing Behavior in Highway Weaving Sections
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2226
Analysis and Process Optimization on Hydrogen Content by Electroslag Remelting of Steel 316H for Nuclear Power
Published 2025-02-01“…In order to find out hydrogen content change law in ESR ingot during electroslag remelting, and on the basis of each process optimize to improve the electric slag ingot hydrogen content qualified rate , nuclear power steel 316H is taken as the research object to study processing parameters such as melting speed, filling ratio, slag ingredients, amount of slag added, initial hydrogen of electrode and partial pressure of water vapor by using a 15 ton electroslag furnace in this paper.The results show that hydrogen addition is different in each stage of electroslag remelting,the hydrogen content in ESR ingot is proportional to the square root of water pressure in the air. The CaO can promote hydrogen increase and MgO can prevent hydrogen increase in the slag ingredients. …”
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2227
Biodiesel Production Optimization from Waste Cooking Oil Using Animal Bone Catalyst
Published 2023-09-01“…The methyl esters and synthetic calcium oxide (CaO) from animal dumps were both analyzed. At temperatures between 900 and 950oC, calcined catalyst was obtained. …”
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2228
Effect of temperature on oxidation behavior and occurrence state of sulfur in KR slag
Published 2023-01-01“…The main component (CaO) in KR (Kambara reaction) desulfurization slag is a high value slag raw material for converter smelting, and attempts to utilize KR desulfurization slag in converter smelting are conducive to reducing the buildup of KR desulfurization slag and improving the economic efficiency of converter smelting. …”
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2229
Slurry and Technology Optimization for Grouting Fissures in Earthen Sites with Quicklime
Published 2019-01-01“…In this study, quicklime was mixed with 1.5% SH binder, clay, and fly ash in different proportions to prepare nine different mixtures and water-cement ratios of SH-(CaO + C + F) slurry. An expansibility test was performed, and based on the results, four groups of slurry were selected for a fluidity test. …”
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2230
A comparative analysis of the microstructural and physicochemical properties of alluvial and dune sands from northeast Algerian Sahara
Published 2023-07-01“…The chemical analysis confirmed that both types of sand have a high silica (SiO2) ratio, reaching 80% for dune sand and 70% for alluvial sand, besides very low quantities of Al2O3, Fe2O3, and K2O oxides. CaO content was higher in alluvial sand than in dune sand. …”
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2231
The Effect of Variable Ratios of Na<sub>2</sub>O/K<sub>2</sub>O Oxides in Glazes Containing BaO, ZnO, and ZrO<sub>2</sub>: Structural Analysis, Characteristic Temperatures, and Sur...
Published 2025-01-01“…In this paper, the glazes of a multicomponent system (SiO<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub>-CaO-MgO-Na<sub>2</sub>O-K<sub>2</sub>O-BaO-ZnO-ZrO<sub>2</sub>) were examined. …”
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2232
HIỂU BIẾT MONG ĐỢI CỦA NGƯỜI DÂN NHẰM CẢI THIỆN CHẤT LƯỢNG DỊCH VỤ HÀNH CHÍNH CÔNG
Published 2014-09-01“…Sự hài lòng của khách hàng cũng có thể được hiểu như một phản ứng mang tính cảm xúc của khách hàng đáp lại kinh nghiệm của họ với một sản phẩm hay dịch vụ nhất định. Chính vì vậy, để nâng cao chất lượng dịch vụ hành chính công, các cơ quan quản lý nhà nước cần phải hiểu biết những nhu cầu, mong đợi của người dân cũng như kinh nghiệm của họ trong quá trình mua và sử dụng dịch vụ hành chính công. …”
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2233
The Effect of Monetary Rewards on the Performance of Employees in an Organisation: A Case Study of Kabale District Local Government.
Published 2023“…The population of this study comprised of all the employees under the finance department, CAO's office and human resource department at the district. …”
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2234
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2235
Search for lepton number violating decays of D s + $$ {\textrm{D}}_{\textrm{s}}^{+} $$ → h − h0e+e+
Published 2025-01-01Get full text
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2236
Measurement of Σ+ transverse polarization in e + e − collisions at s $$ \sqrt{s} $$ = 3.68 − 3.71 GeV
Published 2024-12-01Get full text
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2237
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2238
Compressive Strength and Microstructure Properties of Alkali-Activated Systems with Blast Furnace Slag, Desulfurization Slag, and Gypsum
Published 2018-01-01“…DS is produced in a Kambara reactor process of molten iron produced in a steel production process. DS contains CaO, SiO2, Fe2O3, and SO3 and is composed of Ca(OH)2 and 2CaO·SiO2 as main compounds. …”
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2239
The Sediment Profile and Heavy Metal Content of Lead (Pb), Copper (Cu), and Silver (Ag) in The Waters of Saparua Island
Published 2025-01-01“…P.2, P.3, P.6, P.8, P.9, and P.11 have the highest intensity which is the characterization of metal oxide 2Ɵ= 27.7464°, 29.4759, 26.2979, 26.6686, 26.7007, and 24.3695 indicate the presence of CaO (calcium oxide) phases at points P.2, P.3, and P.6. the SiO2 (silica) phase which is the most abundant metal in sediment samples P.8, P.9, and P.11 based on the XRF test. …”
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2240
Biosorption of Lanthanides from Aqueous Solutions Using Pretreated Buccinum tenuissimum Shell Biomass
Published 2010-01-01“…Consequently, the following matters have been mainly clarified. (1) The crystal structure of the shell biomass was transformed from aragonite (CaCO3) into calcite (CaCO3) phase by heat-treatment (480∘C, 6 hours); then mainly transformed into calcium oxide (CaO) by heat-treatment (950∘C, 6 hours), and calcium hydroxide (Ca(OH)2) by heat-treatment (950∘C, 6 hours) and adding water. (2) The shell biomass showed excellent sorption capacity for lanthanides. (3) Adsorption isotherms using the shell biomass can be described by Langmuir and Freundlich isotherms satisfactorily for lanthanides except “heat-treatment (950∘C, 6 hours) sample”. (4) Shell biomass (usually treated as waste material) can be an efficient sorbent for lanthanides in future.…”
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