Results 91 to 100 of about 552,793 (295)

Experimental investigation of the early-age mechanical behaviour of oil-well cement paste

Cement and Concrete Research, 2019
The knowledge of the behaviour of oil-well cement paste from the early age to the hardened state is important in predicting the performances of the cement sheath in oil/gas wells, specially for prediction of the risk of micro-annulus creation between the
N. Agofack, S. Ghabezloo, J. Sulem, A. Garnier, C. Urbanczyk   +4 more
semanticscholar   +1 more source

Critical Appraisal of Pancreaticogastrostomy After Pancreatoduodenectomy: Evolution, Evidence, and Future Prospects

Journal of Hepato-Biliary-Pancreatic Sciences, EarlyView.
ABSTRACT Pancreaticogastrostomy (PG) emerged as a reconstructive option after pancreaticoduodenectomy (PD) due to its reported lower incidence of postoperative pancreatic fistula (POPF), but its superiority over pancreaticojejunostomy (PJ) remains unclear.
Samuel Menezes, Isabella R. Buonopane, Luís Felipe Leite, Anelise Poluboiarinov Cappellaro, Marcos Belotto   +4 more
wiley   +1 more source

Advanced Interpretation of Field Cycling NMR Relaxometry Dispersion Profiles From Hard and Soft Materials

Magnetic Resonance in Chemistry, EarlyView.
This review demonstrates that NMR dispersion profiles from fast field cycling NMR relaxometry can be interpreted with the 3‐Tau model for a broad spectrum of soft and hard materials. Meaningful physical quantities provide insight into surface chemistry, bound water density, pore size, aqueous or solid iron (III) density and the free water diffusion ...
David A. Faux, Rémi Kogon
wiley   +1 more source

Dental composites: a comprehensive review on formulation, properties and recent developments

Polymer International, EarlyView.
Dental composites are essential in modern restorative dentistry; this review covers their development, composition, key properties and recent advances, highlighting new technologies for optimizing materials and improving clinical outcomes. Abstract Dental composites have evolved considerably since their introduction, becoming the cornerstone of modern ...
Rayenne Latoui, Djallel Bouzid, Olivier Boyron   +2 more
wiley   +1 more source

Design and evaluation of oil well cement-based composite materials improved by multi-component flexible materials

Materials Research Express
Complex oil and gas wells often experience complex stresses underground during the extraction process, which can easily cause damage to the cement paste.
Hui Zhang, Chengwen Wang
doaj   +1 more source

Arbuscular mycorrhizal fungal inoculation increases the bioavailability of zinc and iron in wheat grain

PLANTS, PEOPLE, PLANET, EarlyView.
Bread wheat is an important crop that supplies calories and nutrients to the global population. Enhancing the concentrations and bioavailability of essential micronutrients in wheat is crucial for human nutrition, and we investigated whether arbuscular mycorrhizal (AM) fungi can contribute to the biofortification of wheat.
Thi Diem Nguyen, Alexander A. T. Johnson, Enzo Lombi, Casey L. Doolette, Euan Smith, Stephanie J. Watts‐Williams   +5 more
wiley   +1 more source

Reduction, Softening, and Melting Characteristics of Mill Scale‐Based Briquettes for Blast Furnace Ironmaking

steel research international, EarlyView.
The study evaluates mill scale‐based briquettes, which meet industrial standards for shatter strength and exhibit a low decrepitation index. Despite their limited reducibility in nonisothermal reduction experiments, softening and melting results indicate potential application as a substitute for conventional acidic iron‐bearing materials for use in ...
Ismael Vemdrame Flores, Paula Maria Gomes Cunha Leão, João Victor Souza Alves, Otávio Henrique Matos de Assis, Maurício Covcevich Bagatini   +4 more
wiley   +1 more source

Recycling of Mill Scale Into High‐Purity Iron Through Hydrogen‐Based Reduction

steel research international, EarlyView.
Mill scale, an iron oxide–rich steel by‐product, is difficult to recycle due to impurities. This study evaluates hydrogen‐based direct reduction and hydrogen plasma smelting reduction as low‐carbon recycling routes. Impurity segregation limits reduction kinetics. Direct reduction achieves 92% conversion in 180 min, while plasma reduction reaches 91% in
Nathalia C. Verissimo, Anumoy Ganguly, Lucas Varoto, Tim M. Schwarz, Jean‐Baptiste Letz, Ubaid Manzoor, Laurine Choisez, Dierk Raabe, Isnaldi R. Souza Filho   +8 more
wiley   +1 more source

Mechanism of synergistic reinforcement of cement paste using inorganic fibres and nano powder under high-temperature conditions and fracturing loads: Multi-scale structural evolution

Journal of Materials Research and Technology
Oil well cement paste serves in high-temperature and high-pressure wellbore environments and bears multiple fracturing loads during deep shale-gas resource development.
Binhui Li, Dongjun Wang, Zhaowei Hou, Shouliang Lu, Hong Zhang, Yu Zu, Shuai Liu, Xiaowei Cheng, Kaiyuan Mei, Chunmei Zhang   +9 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