Results 71 to 80 of about 2,596 (199)

Study on the macro–micro evolution of compaction characteristics of coal gangue with different grain sizes under side-limit compression conditions

Scientific Reports
Currently the main method of mine solid waste disposal and utilization is to apply gangue to underground filling. For the grading characteristics of coal gangue in the hollow zone in underground filling, the state of pressure and the mechanical ...
Zhenzhi Liu, Ping Liu, Zhen Lu, Jian Li, Chang Luo   +4 more
doaj   +1 more source

Electrochemical etching technique for analyzing the shape and spatial arrangement of graphite inclusions in as‑cast and plastically deformed cast iron

Литьë и металлургия
The technique for revealing the shape and spatial arrangement of graphite inclusions in the structure of cast iron and the scheme of the corresponding device are proposed.
A. I. Pokrovsky
doaj   +1 more source

Low‐Cost Ambient Pressure Drying Approach for Highly Porous Nanomaterial Structures

Small Methods, EarlyView.
We propose a simple, low‐cost method to dry highly porous nanomaterial structures at ambient temperature and pressure. Using low surface tension solvents, this technique minimizes capillary forces, preventing pore collapse and material shrinkage. This bypasses the need for expensive and size‐limiting critical point drying, enabling scalable production ...
Erik Greve, Pia Pooker, Jan‐Ole Stern, Rainer Adelung, Valeria Nicolosi, Dahnan Spurling   +5 more
wiley   +1 more source

An experimental study of non-coaxial soil behaviour using hollow cylinder testing [PDF]

, 2010
Non-coaxiality of the principal stress direction and principal strain increment direction has been observed in both numerical modelling and experimental studies. The importance of non-coaxiality has been widely recognised in the geomechnical engineering.
Cai, Yanyan
core  

Direct Measurement of Protein Corona Thickness on Nanomaterials Using Dual‐Color Stochastic Optical Reconstruction Microscopy (STORM)

Small Methods, EarlyView.
Quantitative dual‐color STORM imaging provides direct nanoscale measurement of protein coronas on nanoparticles in biological media. The approach reveals consistent ∼50 nm corona layers, establishing a reproducible method for characterizing the nanomaterial‐protein interfaces.
Bradley T. Cech, Sophie M. Sullivan, Christopher C. Landry   +2 more
wiley   +1 more source

Fatigue Strength in Additive Toolmaking: A Study of Metal Binder Jetting and Electron Beam Melting for Processing Carbide‐Rich Cold‐Work Tool Steels

steel research international, EarlyView.
Focusing on the critical tap hole region of the blast furnace, this work examines binder characteristics, prepares tap hole clay with different formulations, and evaluates their physical properties. The findings confirm the advantages of composite binders and offer a new binder option for tap hole clay.
Frederik Tegeder, Lennart Mirko Scholl, Sandra Wieland, Christian Weck, Marie Franke‐Jurisch, Alexander Bezold, Thomas Weißgärber, Christoph Broeckmann   +7 more
wiley   +1 more source

Buckling of slender composite concrete‐filled steel columns

Journal of Civil Engineering and Management, 2010
The paper presents the analysis of the experimental data of 1817 on concrete‐filled steel tubes ‐ CFSTs. These results are compared with the predicted results of the load‐bearing capacity of calculations of slender elements according to the methods ...
C. Douglas Goode, Artiomas Kuranovas, Audronis Kazimieras Kvedaras   +2 more
doaj  

Toward the Application of Multiaxial Failure Criteria: Mean Stress Sensitivity of Carbide‐Rich, High‐Alloy PM‐HIP Tool Steels Under Axial and Torsional Cyclic Loading

steel research international, EarlyView.
This study quantifies axial and torsional long‐life fatigue (LLF) behavior of three carbide‐rich PM‐HIP tool steels, correlating LLF strength with intrinsic defect size and cleanliness, thereby extracting material‐specific mean stress sensitivities and Haigh diagrams.
Lennart Mirko Scholl, Frederik Tegeder, Tobias Hajeck, Alexander Bezold, Christoph Broeckmann   +4 more
wiley   +1 more source

Near-wellbore laboratory simulation system to evaluate chemical sand consolidation with Epoxy/g-C3N4-NS nanofluid: an experimental and simulation study

Journal of Petroleum Exploration and Production Technology
In loose sandstone reservoirs, sand enters the wellbore along with the production fluid. Sand production causes numerous problems, such as the erosion of downhole, wellhead, and surface equipment, ultimately leading to a decline in production.
Hamed Nejati, Ehsan Khamehchi, Ali Ashraf Derakhshan, Saeed Shad   +3 more
doaj   +1 more source

Performance analysis of strengthening reinforced concrete beams under pure torsion using galvanized steel sheets: Experimental and numerical investigation

Structural Concrete, EarlyView.
Abstract Reinforced concrete (RC) beams can be subjected to torsion, and failure due to torsion is brittle and poses a significant risk to occupants. Moreover, strengthening of existing RC beams in torsion may be required due to the upgrade of the structures or as part of structural rehabilitation.
Ahmed Hamoda, Mizan Ahmed, Ahmad G. Saad, Aref A. Abadel, Saad A. Yehia   +4 more
wiley   +1 more source