Results 181 to 190 of about 11,433 (246)

Challenges of drilling Iran's deepest surface hole in the saddle section of Changuleh oilfield with complex structure and pressure regimes. [PDF]

Sci Rep
Jamshidi E, Saen S, Golshaghagh J, Kianoush P, Adib A, Mohammadi A.   +5 more
europepmc   +1 more source

Enhancement of the Plant‐Accessible Phosphate Fraction in Sewage Sludge Ashes by Na+ or K+ Addition Prior to Combustion

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
The addition of Na2CO3 or K2CO3 to sewage sludge prior to combustion leads to the production of ashes containing phosphate in the form of buchwaldite‐like phases (Ca(Na/K)PO4). Compared to conventional sewage sludge mono‐ashes, such Na‐ or K‐ashes show greatly increased P‐solubilities and proved to be potent P‐fertiliser materials in greenhouse ...
Lorenz Bier‐Schorr, Viktoria Gräser, Michael Scherer‐Lorenzen, Peter Hajek, Philipp Kurz   +4 more
wiley   +1 more source

Reinforcement Effect of CaCl₂ on Cementation Performance of Solid-Waste-Based Cementitious Materials for Fine Tailings. [PDF]

Molecules
Liu Q, Wu Y.
europepmc   +1 more source

Form and load transfer aspects of foundation systems: Case‐based implementation and adaptation for buildings

Deep Underground Science and Engineering, EarlyView.
Upon conceptualization of structural behavior, foundations in terms of their form are divided into linear (1D), planar (2D), and volumetric (3D). Regarding the load transfer mechanisms, linear foundation systems are considered vector‐acting, planar foundations are divided into section and surface‐acting, and volumetric ones are recognized as block ...
Abolfazl Eslami, Amirhossein Ebrahimipour, Meysam Imani, Reza Imam, Pinqiang Mo   +4 more
wiley   +1 more source

Use of Cemented Hemiarthroplasty for Femoral Neck Fractures. [PDF]

J Am Acad Orthop Surg Glob Res Rev
Amin SJ, Krumme JK, Gause LN, Dubin JR, Cil A.   +4 more
europepmc   +1 more source

A novel construction approach for the pore structure model principally focuses on the controllable roundness of rock particles

Deep Underground Science and Engineering, EarlyView.
Particle rounding effects comparison of different methods: (a), (b), and (c) are the rounding results using the B‐spline curve method with different R; (d), (e), and (f) are the results of vertex rounding substitution method with different rounding radii.
Jiabin Dong, Ning Yang, Yi Jin, Ying Wu, Dandan Liu, Junling Zheng, Jingyan Zhao   +6 more
wiley   +1 more source

"Cup-in-Cup Technique" in the Management of Acetabular Defects in Hip Arthroplasty: Early to Midterm Results. [PDF]

Clin Orthop Surg
Kumar S, Kulshrestha V, Padhi P, Datta B, Gogoi B, Sood M.   +5 more
europepmc   +1 more source

Numerical investigation of the correlations of hydraulic and elastic characteristics in diverse carbonate rock types

Deep Underground Science and Engineering, EarlyView.
We use the linear Boolean model and the discrete Fourier transformation approach to generate various carbonate rocks. The lattice Boltzmann method and the finite element method are applied to calculate permeability and elastic wave velocity, respectively.
Yutian Zhang, Yifan Wu, Chi Zhang, Fengqiao Wang, Hucheng Deng, Meiyan Fu, Yonghui Li, Qi Li   +7 more
wiley   +1 more source

Experimental Investigation of the Evaluation of the Cement Hydration Process in the Annular Space Using Distributed Fiber Optic Temperature Sensing. [PDF]

Sensors (Basel)
Li Z, Li M, Guo H, Wu Y, Sheng L, Jiao J, Li Z, Sui W.   +7 more
europepmc   +1 more source

Investigation of the failure characteristics of fissure tunnels under dynamic and static combinations

Deep Underground Science and Engineering, EarlyView.
This article aims to investigate the dynamic fracture response of fractured tunnel models under zero geological stress through physical experiments and numerical simulations. It further simulates the dynamic fracture characteristics of fractured tunnel models under geological stress ranging from 0 to 2.5 MPa using the numerical software AUTODYN ...
Peng Ying, Yu Ying, Xiaohan Li, Han Zhao, Kewei Yu, Zheming Zhu, Lei Zhou, Xibin Li   +7 more
wiley   +1 more source