Results 101 to 110 of about 7,852 (251)

Hydrogen‐Based Reduction of Hematitic Iron Ore in a Fluidized Bed Kinetic Reactor at Elevated Pressures

steel research international, EarlyView.
This study investigates the reduction behavior of two international iron ores, including a synthetic hematite produced by oxidation of magnetite, in a novel fluidized‐bed kinetic reactor at elevated pressures. The reduction takes place at various temperatures (650°C, 700°C, and 750°C), and various hydrogen partial pressures (30, 55, and 80 vol% H2 ...
Valentina Nigitz, Aaron Wieder, Sandra Jezernik, Christoph Ahr, Mark Berchtold, Franz Winter   +5 more
wiley   +1 more source

Foamed Concrete Sealing Materials for Coal Seam Gas Drainage Boreholes: A Review

Safety Science and Technology, EarlyView.
This study investigates the sealing performance of foamed concrete in gas drainage boreholes. By comparing leakage pathways (a, c) with sealed systems (b, d), the research demonstrates how foamed concrete effectively fills mining‐induced fractures and resists deformation.
Jiaxing Zou, Erlei Su, Huanchun Liu, Xiangjun Chen, Lin Wang, Haidong Chen, Lin Li   +6 more
wiley   +1 more source

Investigation on thermal feedback and combustion characteristics of wall-attached pool fires with different aspect ratios and orientations induced by sidewall

Case Studies in Thermal Engineering
The occurrence of pool fires adjacent to a sidewall poses significant risks. To investigate fire source combustion characteristics and thermal feedback of sidewall-attached fires, experiments involving rectangular heptane pool fires with varying aspect ...
Cong Li, Yanke Jin, Chenhui Wang, Jiali Wang, Quanyi Liu, Rui Yang   +5 more
doaj   +1 more source

Monitoring of historical structural materials with computed tomography

Structural Concrete, EarlyView.
Abstract Computed tomography (CT) is an excellent tool to solve certain engineering problems connected to material science (such as sulfate swelling, internal degradation due to freezing, and alkali silicate swelling) and to understand specific processes (frost peeling, acid action).
Kristóf Csorba, Kristóf Kapitány, Zsolt Cimer, Viktor Hlavička, András Biró, Éva Lublóy   +5 more
wiley   +1 more source

Numerical analysis of debonding behavior of FRP sheets bonded to concrete focusing on mortar skin

Structural Concrete, EarlyView.
Abstract This paper proposes a novel simple method for finite element analysis (FEA) to simulate the debonding behavior of fiber‐reinforced polymer (FRP) sheets bonded to concrete. This study focuses on the mortar skin of the concrete surface layer, which fails during FRP sheet debonding.
Mitsuhiko Ozaki, Yasuhiko Sato
wiley   +1 more source

Bubble formation and scale dependence in free-surface air entrainment. [PDF]

Sci Rep, 2019
Wei W, Xu W, Deng J, Tian Z, Zhang F.
europepmc   +1 more source

Influence of mix design method on the shear capacity of reinforced concrete beams made with high‐quality recycled coarse aggregate

Structural Concrete, EarlyView.
Abstract This study investigates the shear capacity behavior of reinforced concrete (RC) beams without stirrups incorporating recycled coarse aggregate (RCA). An extensive database comprising 269 experimental data points from 40 journal articles published between 2001 and 2025 was compiled, excluding specimens with recycled fine aggregate or fiber ...
Sungchul Yang
wiley   +1 more source

Behind Closed Doors: Interaction Rituals and the Building of Social Ties in Private Company‐Investor Meetings À huis clos : rituels d'interaction et construction de liens sociaux lors des réunions privées entre sociétés et investisseurs

Contemporary Accounting Research, EarlyView.
ABSTRACT This paper examines private meetings between company managers and institutional investors as part of the broader financial reporting environment. Using direct observations of 39 such meetings across four large, listed companies—complemented with the study of preparatory work and internal documents—the paper investigates how these meetings help
Per Ahblom, Carl Henning Christner, Andrea Mennicken   +2 more
wiley   +1 more source

The Influence of Water/Cement Ratio and Air Entrainment on the Electric Resistivity of Ionically Conductive Mortar. [PDF]

Materials (Basel), 2019
Zhao R, Weng Y, Tuan CY, Xu A.
europepmc   +1 more source

Modern Fire Safety Protocols in the Archeological Contexts: A New Tool for Studying the Health and Behavioral Effects of Fire Use in Semi‐Closed Spaces

Archaeometry, EarlyView.
ABSTRACT This study evaluates the application of computational fluid dynamics (CFD) simulations, integrated with controlled fire experiments, to investigate combustion processes in semi‐closed spaces. The framework enables systematic modeling of smoke dispersal, particulate transport, and hearth performance under variable morphologies and ventilation ...
Yafit Kedar
wiley   +1 more source