Results 151 to 160 of about 43,604 (295)

Pengaruh Perendaman terhadap Nilai Cbr pada Tanah Lempung yang Distabilisasi dengan Abu Cangkang Sawit dan Kapur [PDF]

, 2018
Soil is one of the construction materials that are directly available in field, various means are used to improve the strength of soil clays, such as by the addition of chemicals.
Kurniawan, D. (Deddy)
core  

Effect of Intrinsic Carbon in Hot Briquetted Iron on Melting and Refining Efficiency under Electric Arc Furnace Conditions for Sustainable Steelmaking with Active Use of H2‐Reduced Iron

steel research international, EarlyView.
The melting behavior of hot briquetted iron (HBI) is observed and compared with FactSage computing simulation. When using HBI in an electric arc furnace process, a proper design of intrinsic carbon content in HBI, charging ratio of HBI, and addition of lime are proposed to be essential to control the slag volume, maintain slag basicity, and mitigate ...
Min Joo Lee, Joo Hyun Park
wiley   +1 more source

Stabilization of Soil Using Eggshell Powder as a Partial Replacement for Lime: A Sustainable Approach

Jurnal Civil Engineering Study
This study assesses the effectiveness of lime in stabilizing soil and focus on the prospects of using eggshell powder as an economic and environmentally friendly alternative to lime.
Adnan
doaj   +1 more source

Analisis Campuran Kapur-fly Ash Dan Kapur-abu Sekam Padi Terhadap Lempung Ekspansif [PDF]

, 2016
Frequently, expansive clay soil raise problem to the buildings lies on it. Concerning to this, there are many ways had be tried to resolve this expansive soil, where one of it is by stabilization using coal by product (fly ash) , rice husk and lime to ...
Jansen, F. (Fredy), Pinansang, D. B. (Denny), Sompie, O. B. (O)   +2 more
core  

A Thermodynamic‐Kinetic Model for Basic Oxygen Furnace Tapping: Improved Prediction of Phosphorus and Steel‐Slag Evolution

steel research international, EarlyView.
This study develops a thermodynamic–kinetic model for basic oxygen furnace tapping and validates its accuracy under near‐equilibrium and far‐from‐equilibrium initial conditions. Comparison with a reference model demonstrates its broader applicability. The model further reveals the evolution of key steel and slag components, providing new transparency ...
Puhong Cheng, Christian Bernhard, Michael Bernhard, Daniel Kavić, Jianghua Qi   +4 more
wiley   +1 more source

Systemic control of immune cell development by integrated carbon dioxide and hypoxia chemosensation in Drosophila. [PDF]

, 2018
Drosophila hemocytes are akin to mammalian myeloid blood cells that function in stress and innate immune-related responses. A multi-potent progenitor population responds to local signals and to systemic stress by expanding the number of functional blood ...
Banerjee, Utpal, Cha, Nuri, Cho, Bumsik, Shim, Jiwon, Spratford, Carrie M, Yoon, Sunggyu   +5 more
core  

Double Slag Operating Standard for Mitigation of CO2 Emissions in Basic Oxygen Steelmaking

steel research international, EarlyView.
Basic oxygen furnace (BOF) steelmaking uses a double slag process (DSP) to produce low‐phosphorus steel. To reduce carbon emissions in a BOF, the hot metal ratio (HMR) must be lowered. The present article describes the optimal conditions for DSP operations under low‐HMR conditions: temperature of 1360 ± 5 °C, total Fe content of 10 ± 2 wt%, basicity (=
Kyung Hwan Kim, Joo Hyun Park
wiley   +1 more source

Modeling the Thermal Properties of Hydrogen‐Based Direct Reduced Iron Using Computational Thermodynamics and Machine Learning

steel research international, EarlyView.
Hydrogen‐based direct reduced iron (H‐DRI) melts differently from scrap and carbon‐bearing DRI. This work combines differential scanning calorimetry experiments, FactSage thermodynamics, and simple composition‐based regression to predict solidus, liquidus, heat capacity, and enthalpy for H‐DRI.
Ankur Agnihotri, Petri Sulasalmi, Pasquale Cavaliere, Ville‐Valtteri Visuri   +3 more
wiley   +1 more source

The Application of Hydrochar Composite Briquettes for Sustainable Slag Foaming in the Electric Arc Furnace Process

steel research international, EarlyView.
Hydrochar‐mill‐scale briquettes with varying C/O molar ratios (0.07–0.90) have been tested at 1650 °C to evaluate their slag foaming performance for electric arc furnace application. All seven briquette recipes developed succeed in promoting slag foaming.
Yu‐Chiao Lu, Andrey Karasev, Björn Glaser, Chuan Wang   +3 more
wiley   +1 more source

Clearing the Air: How Fine Particulate Matter Regulations Reshape Farmland Values in U.S. Corn and Soybean Regions

Journal of Agricultural Economics, EarlyView.
ABSTRACT We investigate the impact of air quality regulations targeting fine particulate matter (PM2.5) on farmland values in corn and soybean producing counties in the United States over the period 1997–2022. Using self‐reported farmland value data from the Agricultural Census and county‐level pollution classifications provided by the Environmental ...
Cécile Couharde, Rémi Generoso
wiley   +1 more source