Results 111 to 120 of about 13,384 (264)
Sustainable Development, EarlyView.ABSTRACT This paper examines the nexus between financial markets (FM), mineral resources, and global energy transitions (ET) between 1990 and 2023 in the 20 leading countries exporting mineral resources, focusing on their impact on environmental sustainability.
Hamza Akram +5 more
wiley +1 more source
A First Assessment of Carbon Nanotubes Grown on Oil-Well Cement via Chemical Vapor Deposition. [PDF]
Nanomaterials (Basel), 2022 Lavagna L +5 more
europepmc +1 more source
Primary cementing of a highly deviated oil well
, 2010 In this thesis we study laminar displacement flows of one fluid by another in a horizontal annulus. The study comes from the primary cementing of highly deviated oil and gas wells. Highly deviated wells are those in which part of the well bore is nearly horizontal. Primary cementing is a critical process in the construction of a well.
openaire +1 more source
Social, Technological, Economic, and Policy Factors in the Circular Economy Transition in Brazil
Sustainable Development, EarlyView.ABSTRACT A well‐functioning circular economy (CE) integrates resilience across economic, environmental, and social dimensions. This study identifies key drivers and barriers to Brazil's CE transition through 20 semi‐structured interviews with stakeholders. Major sociocultural barriers include inadequate education and limited CE awareness, while growing
Alejandro Gallego‐Schmid +9 more
wiley +1 more source
Effects of microstructure on compressive strength of silica sand-enhanced oil well cement at a wide temperature range. [PDF]
R Soc Open Sci, 2022 Chen Z +5 more
europepmc +1 more source
The Hidden Costs of Coffee Production in the Eastern African Value Chains
Sustainable Development, EarlyView.ABSTRACT There is increasing recognition that significant hidden costs associated with agrifood systems are not reflected in market prices. Coffee is among the three most traded agricultural commodities in the world and supports the livelihoods of more than 30 million smallholder households.
Annet Adong +3 more
wiley +1 more source
Supra and subgingival application of antiseptics or antibiotics during periodontal therapy
Periodontology 2000, EarlyView., 2023 Abstract Periodontal diseases (gingivitis and periodontitis) are characterized by inflammatory processes which arise as a result of disruption of the balance in the oral ecosystem. According to the current S3 level clinical practice guidelines, therapy of patients with periodontitis involves a stepwise approach that includes the control of the patient ...
Elena Figuero +5 more
wiley +1 more source
Small Structures, EarlyView.Bone's complex hierarchical structure contains many internal interfaces, including the cement line (CL) around osteons. This article shows that the CL is stiffer and harder than surrounding bone but has different mineral–mechanics relationships. These findings challenge the view of the CL as a soft, protective interface and provide insights for ...
Astrid Cantamessa +11 more
wiley +1 more source
Evaluation of Qusaiba Kaolinitic Shale as a Supplementary Cementitious Material in Lightweight Oil-Well Cement Formulation. [PDF]
ACS Omega, 2022 Adjei S +3 more
europepmc +1 more source
Enhancing printability of 3D printed concrete by using metakaolin and silica fume
Structural Concrete, EarlyView.Abstract This study investigates the effects of incorporating metakaolin (MK) and silica fume (SF) on the fresh and hardened properties of 3D printed concrete (3DPC). Five mix designs were prepared with MK replacement levels of 0%, 10%, 12.5%, and 15%, along with one mix containing 10% MK and 5% SF.
Marwah M. Thajeel +2 more
wiley +1 more source