SIDOR de cuasi monopolio estatal venezolano a parte de una multinacional latina by RITA GIACALONE

“…We also explore the history of Sidor before 1998 and the process of formation of the Consorcio Amazonia, original buyer of Sidor, in order to determine what strengths the steel plant had and which ones were brought by the new owners. …”
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Accelerated Orthodontic Canine Retraction Using Minimally Invasive Orthocision by Omar Chawshli, Zana Omer, Omed Ikram

“…The contralateral side of each patient used as a control for the experimental side with vertical incisions and decortication of bone with piezo knife both mesial and distal to the retracted canine after alignment and before starting retraction with power chain on 0.017*0.025 inch stainless steel wire. The pre- and post- treatment photographed cast superimpositions were used to quantify the canine distalization and molar anchorage loss and Muhelmans index was used for evaluating pre- and post- retraction tooth mobility in this study. …”
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Physical and Combustion Characteristics of Briquettes Made from Water Hyacinth and Phytoplankton Scum as Binder by R. M. Davies, O. A. Davies

“…The water hyacinth grinds and binder (phytoplankton scum) at 10% (B1), 20% (B2), 30% (B3), 40% (B4), and 50% (B5) by weight of each feedstock were fed into a steel cylindrical die of dimension 14.3 cm height and 4.7 cm diameter and compressed by hydraulic press at pressure 20 MPa with dwell time of 45 seconds. …”
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A Study on Suitability of EAF Oxidizing Slag in Concrete: An Eco-Friendly and Sustainable Replacement for Natural Coarse Aggregate by Alan Sekaran, Murthi Palaniswamy, Sivagnanaprakash Balaraju

“…EAF oxidizing slag as a by-product obtained during the process in steel making industry provides great opportunity to utilize it as an alternative to normally available coarse aggregates. …”
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Mechanism of Roadway Floor Heave Controlled by Floor Corner Pile in Deep Roadway under High Horizontal Stress by Xinchao Kang, Dongming Guo, Zhiying Lu

“…In order to overcome the support difficulty of serious floor heave caused by rock burst, with the floor heave of ventilation roadway in Hegang Xing An Coal Mine as the engineering background, the treatment scheme of the concrete-filled steel tube corner pile and floor grouting is put forward. …”
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Arsenic Removal from Water Using Industrial By-Products by Branislava M. Lekić, Dana D. Marković, Vladana N. Rajaković-Ognjanović, Aleksandar R. Đukić, Ljubinka V. Rajaković

“…Removal of As(III) and As(V) from water was carried out with industrial by-products: residual from the groundwater treatment process, iron-manganese oxide coated sand (IMOCS), and blast furnace slag from steel production (BFS), both inexpensive and locally available. …”
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Structural Optimization of Vertical Axis Wind Turbine (VAWT): A Multi-Variable Study for Enhanced Deflection and Fatigue Performance by Sajid Ali, Hongbae Park, Daeyong Lee

“…The results showed that NACA 0030 airfoil, composite steel, and single-pile foundation performed best under TSR 1.8 conditions, with the potential to reduce strain by approximately 30% and fatigue damage by approximately 25% compared to conventional structures. …”
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The Role of Various Powders during the Hydration Process of Cement-Based Materials by Shuhua Liu, Hongling Wang, Jianpeng Wei

“…The role of various powders including glass powder (GP), limestone powder (LP), and steel slag powder (SSP) during the hydration process of cement-based materials was investigated by using X-ray diffraction (XRD), thermogravimetric and differential thermal analysis (TG-DTA), scanning electron microscopy (SEM), and strength tests. …”
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An Automated Procedure for Assessing Local Reliability Index and Life-Cycle Cost of Alternative Girder Bridge Design Solutions by Ilaria Venanzi, Riccardo Castellani, Laura Ierimonti, Filippo Ubertini

“…Degradation models are adopted for steel carpentry and rebars. The application of the procedure to a road bridge case study shows its potential in providing local safety levels for different limit states over the entire lifetime of the bridge and the life-cycle cost of the infrastructure, highlighting the importance of the local character of the life-cycle cost analysis.…”
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Optimization of Drilling Parameters in Sisal-Human Hair Hybrid Composite Using Grey Relational Analysis by D. Elil Raja, S. Panneer Selvan, P. Prabhuraj, Tushar Sonar

“…In addition, high-speed steel (HSS) drills were used to study the influence of drilling parameters such as speed, feed, and drill point angle on the quality of the drilling. …”
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Transport, Magnetic, and Thermal Properties of La0.7Ca0.24Sr0.06MnO3 Single Crystal by Tejas M. Tank, Ashish Bodhaye, Ya M. Mukovskii, Sankar P. Sanyal

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Effect of Different Types of Middle Columns on the Seismic Performance of Single-Story Subway Station Structure by Sheng Li, Haiyang Zhuang, Wei Wang, Liguo Jin, Zhengfang Dong

“…In view of the seismic weak component of the single-frame-type subway station structure, the three-dimensional (3D) time-domain nonlinear finite element static-dynamic coupling analysis model of interaction between soil and subway station structure is established by, respectively, using rectangular reinforced concrete (RRC) columns, circular reinforced concrete (CRC) columns, and prefabricated concrete-filled steel tube (CFST) columns with a quick-connection device proposed in this article. …”
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A Fractographic Study of Bending/Torsion Fatigue Failure in Metallic Materials with Protective Surface Layers by Karel Slámečka, Petr Šesták, Tomáš Vojtek, Marta Kianicová, Jana Horníková, Pavel Šandera, Jaroslav Pokluda

“…Results are given of a fractographic study of biaxial in-phase bending/torsion fatigue fractures in specimens made of nitrided steel and nickel-based superalloy with protective coatings (diffusion coatings and plasma-sprayed thermal barrier coatings). …”
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Organic Nitrogen in Precipitation: Real Problem or Sampling Artefact? by J.N. Cape, A. Kirika, A.P. Rowland, D.R. Wilson, T.D. Jickells, S. Cornell

“…We found that the materials from which the collector was made (polypropylene, steel, or glass) had no significant effect on the composition of dissolved organic N (DON). …”
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A Novel Excavation and Construction Method for an Extra-Long Underwater Tunnel in Soft Soils by Jian Wu, Zhifang Zhou, Wenjun Xia, Haixiao Wang, Zhongqiang Fang

“…In this method, a cofferdam of double-row steel sheet piles (DSSPs) was designed in order to divide the overlying excavation into several closed zones. …”
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Structural Behavior of Reinforced Self-Compacted Engineered Cementitious Composite Beams by Bashar S. Mohammed, M. F. Nuruddin, Muhammad Aswin, Nursyuhada Mahamood, Hashem Al-Mattarneh

“…Eight large-scale reinforced self-compacted engineered cementitious composite (R-SC-ECC) beams with different steel reinforcement ratios have been designed, prepared, cast, cured, and tested to failure at the age of 28 days. …”
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Identification Method for Flexure and Shear Behavior of Cantilever Structures by F. Garcés, C. Genatios, P. García, A. Mebarki, M. Lafuente

“…A dynamic-test experiment is carried out on a steel cantilever which suffers damage in two sections. …”
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Simulation Analysis and Experimental Study on the Working State of Sinking Headframe in the Large Underground Shaft by Yin Qixiang, Zhao Weiping, Xin Wen, Yang Hailin, Zhang Linglei

“…The results show that with the increase of shaft sinking depth, the theoretical stress of finite element simulation and the field measured stress of each member of the sheave wheel platform and the headframe increase linearly, and for the maximum member stress in the upper, middle, and lower layers of the headframe, the numerical simulation value is greater than the field measured value and less than the designed steel strength. In other words, under normal working conditions, headframe members are in the elastic stress stage and meet the design requirements, and instability failure of headframe members will not occur. …”
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Experimental and FEM Analyses of RC Beams with Radius Corner Arch at Bottom Tension Face by Maryam H. Naser, Fatimah H. Naser, Ali Hameed Naser Almamoori, Mohammed L. Hussien

“…The experimental program included four specimens with the same volume of concrete and amount of steel reinforcement but, with a different span of the arch (1180 mm, 900 mm, 740 mm, and 600 mm). …”
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Quantitative description of low-cycle fatigue damage accumulation in contact interaction zone by local strain evolution by Sviatoslav Eleonsky, Yury Matvienko, Vladimir Pisarev, Igor Odintsev

“…Investigated objects are plane aluminium specimens with the centred hole filled by cylindrical steel inclusion. The specimen is subjected to cyclic pull-push loading. …”
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