Results 91 to 100 of about 354 (233)

Cascade: a Knowledge-Based System Supporting Shoe Depths Selection and Casing Design CASCADE : un système à base de connaissances pour l'aide au choix de la profondeur des sabots et à la conception du tubage

Oil & Gas Science and Technology, 2006
CASCADE is a decisional support system for shoe depth selection and casing design in exploration and production wells. This expert system is part of the ADIS project (Advanced Drilling Information System), jointly developed by three ENI companies : AGIP,
Sansone A., Mattiello D.
doaj   +1 more source

Confinement Effects in High‑Efficiency Electrocatalysis: Design, Mechanisms, and Applications

Interdisciplinary Materials, EarlyView.
Confinement has emerged as a powerful strategy in electrocatalysis and has been widely employed to enhance catalytic performance. This review summarizes recent advances in confined electrocatalysis, encompassing the design of confined electrocatalysts, mechanistic insights into confinement effects, and representative applications across diverse zero ...
Congcong Yang, Zhihang Liu, Jingshuo Liu, Chuang Chen, Zhiqun Lin, Likun Gao   +5 more
wiley   +1 more source

Examining Pipe–Borehole Wall Contact and Pullback Loads for Horizontal Directional Drilling

Applied Sciences
Pipeline pullback load is a crucial basis for drill rig selection and pipeline strength design. This paper presents a new pullback load calculation model from the perspective of pipe–borehole wall contact. The pipe–borehole wall contact analysis includes
Zhiyu Wang, Changming Hu
doaj   +1 more source

Ferroelectricity and Ferroionic Dynamics in Two‐Dimensional CuInP2S6

Information &Functional Materials, EarlyView.
The coupled dynamics of ferroelectric polarization and Cu‐ion migration endow CuInP2S6 with unique ferroionic functionalities. This review connects structure, switching mechanisms, and device applications to provide a unified perspective on two‐dimensional ferroionic materials.
Shangsheng Li, Shiyu Wang, Xiongfeng Wang, Qinglin Du, Ruochen Shangguan, Guoqiang Xi, Lin Wang, Wugang Liao   +7 more
wiley   +1 more source

Coping Practices of Small‐ and Medium‐Sized Enterprises Facing Power Asymmetry in Digital Platform Business

Strategic Change, EarlyView.
ABSTRACT Digital platform (DP) enterprises have risen to the top of the global economy by inverting traditional business models. They earn money through matchmaking, transaction facilitation, and efficient orchestration of other stakeholders' resources.
Lukas R. G. Fitz, Jochen Scheeg
wiley   +1 more source

Structural design and parameter optimization of a vibration absorber for rescue casing-while-drilling rigs

Meitian dizhi yu kantan
ObjectiveRescue drilling rigs undergo intense vibration at borehole mouths when operating in a confined underground space of coal mines. To address this issue, this study designed a compact multi-directional, passive dynamic vibration absorber, aiming to
Pu LIU, Ningping YAO, Zujie ZOU, Dong FAN, Hongchao WEI, Binjie HE   +5 more
doaj   +1 more source

Topographic and Climatic Determinants of Soil Organic Carbon Across Landscapes: A Meta‐Analysis

Land Degradation &Development, EarlyView.
ABSTRACT The soil is the greatest natural store of organic carbon, holding between 1500 to 1550 Pg C of organic carbon at the top 100 cm of the soil globally—roughly twice the carbon pool in the atmosphere. The spatial distribution of this stock is controlled by a complex chain of controls: topographic position regulates the hydrological redistribution,
Vishal Sharma, Syed Hujjat ul Baligah, Tajamul Islam Shah, Shahid Shuja Shafai, Owais Bashir, Syed Sheraz Madhi, S. Naresh Kumar, Ayyandar Arunachalam, Shabir Ahmed Bangroo   +8 more
wiley   +1 more source

Evaluation of 7 Tesla pTx Body Coils Regarding Transmit and Receive Performance

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Most sites develop and use custom coils for 7 T body MRI since no standard pTx body coil exists, leading to diverse coil designs differing in transmit element type, layout, and number of receive channels. This study investigates and compares eight existing coils, including one remote body coil array and seven local arrays, regarding ...
Johannes A. Grimm, Oliver Kraff, Markus W. May, Max Lutz, Stephan Orzada, Thomas M. Fiedler, Steen Moeller, Simon Schmidt, Harald H. Quick, Armin M. Nagel, Mark E. Ladd, Sebastian Schmitter   +11 more
wiley   +1 more source

Analysis of the Interfacial Bond Strength in Overmoulded Thermoplastic Composites

Polymer Composites, EarlyView.
Two‐step injection overmoulding process investigated in this work, showing selective gate injection over a 450 mm demonstrator beam to vary flow length and rib pull‐off mechanical testing with fractographic characterisation of the overmoulded interface.
Casilda S. Villalobos, Samson Gnanadass, Jaipal Gupta, Neill Raath, Neil Reynolds, Ton Peijs   +5 more
wiley   +1 more source

Modernization of autonomous energetic complex of drilling rig for exploratory drilling: directions and variants of optimization solutions

Известия высших учебных заведений: Геология и разведка, 2015
The problem of improving the autonomous energetic complexes of drilling rigs for exploratory drilling is considered. The experience of exploitation of heat recovery systems (HRS) with air coolant allowed revealing of key problems, limited maximum effective use of complex autonomous energy source: «rigid» connection of the systems of heating of the ...
openaire   +1 more source