Results 61 to 70 of about 1,056,070 (342)
Drilling fluid for drilling permafrost rocks
Bulletin of the Tomsk Polytechnic University Geo Assets EngineeringRelevance. The article provides an overview of the problem of drilling wells for oil and gas in conditions of permafrost. When constructing wells for various purposes in conditions of permafrost rocks, special requirements are imposed on the selection of the optimal drilling fluid.
Alexander Ya. Tretyak +2 more
openaire +2 more sources
Emergent Freestanding Complex Oxide Membranes for Multifunctional Applications
Advanced Materials, EarlyView.This review surveys freestanding oxide membranes and covers fabrication and three pathways for studies and devices: strain‐free and strained membranes, and van der Waals‐integrated heterostructures. We show how coupled oxide responses map onto these routes and cross‐couple to expand behaviors.
Baowen Li +6 more
wiley +1 more source
Application of damage mechanics in percussive drilling modelling [PDF]
, 2005 A stationary-periodic quasi-static model of rock percussive deep drilling is introduced. First, an auxiliary problem of stationary indentation of a rigid indentor is considered.
Mikhailov, SE, Namestnikova, IV
core
Advanced Materials, EarlyView.A multidimensional molecular strategy optimizes the tribonegative layer by electrospinning PVDF‐HFP for dipole alignment and crystallinity, followed by 2D borophene doping to enhance conductivity and charge trapping. Integrated with Nylon‐66 nanofibers, the composite device delivers a record sensitivity of 53.8 ± 1.2 V kPa−1 at 3 Hz, enabling ultra ...
Sajib Roy +7 more
wiley +1 more source
Strategies for Enhancing Thermal Conductivity of PDMS in Electronic Applications
Advanced Materials Technologies, EarlyView.This review explores effective strategies for enhancing heat dissipation in Polydimethylsiloxane (PDMS)‐based composites, focusing on particle optimization, 3D network design, and multifunctional integration. It offers key insights into cutting‐edge methods and simulations that are advancing thermal management in modern electronic devices.
Xiang Yan, Marisol Martin‐Gonzalez
wiley +1 more source
Applied SciencesDown-the-hole (DTH) hammer drilling has high rock-breaking efficiency and a decisive advantage in hard rock drilling, which can reduce the cost of geothermal drilling.
Hongyu Ye +5 more
doaj +1 more source
Abrasiveness evaluation of rock–cone bit based on fractured cuttings
Journal of Petroleum Exploration and Production Technology, 2019 This paper looks at the influence of the sorting coefficient, average particle size and quartz content on the abrasion rate of the cone bit. This paper uses rock drillability experiments, particle sizing tests and XRD mineral component analyses as ...
Changhao Wang, Shibin Li
doaj +1 more source
Tahiti sea level : the last deglacial sea level rise in the South Pacific [PDF]
, 2005 Integrated Ocean Drilling Program (IODP) Expedition 310 to the reef terraces around Tahiti, French Polynesia, was the second expedition to utilize a mission-specific platform (MSP) and was conducted by the European Consortium for Ocean Research Drilling (
Camoin, Gilbert F. +2 more
core +1 more source
Anti‐Slip Material‐Based Strategies and Approaches
Advanced Materials Technologies, EarlyView.This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani +3 more
wiley +1 more source
Optimization of blasting parameters in open cast quarries of El Hassa-Bouira (Northern Algeria) [PDF]
, 2019 In recent years, Algeria has known a rapid growth in the construction projects, such as: buildings, roads, and infrastructure, which increased the demand for aggregates production in quarries.
Benselhoub, Aissa +2 more
core +1 more source