Results 141 to 150 of about 22,977 (217)

Model calculations for neutron-induced reactions in meteorites and planetary surfaces. [PDF]

Earth Planets Space
Leya I.
europepmc   +1 more source

Acyclic Hydrocarbon α,ω‐Dienes: From Biomass and Plastic Upcycling to Carbocycles, Precision Polymers, and Cross‐Linked Elastomers

ChemSusChem, Volume 19, Issue 14, 29 July 2026.
Hydrocarbon α,ω‐dienes are mainly produced from steam‐cracking derivatives, but high costs, complexity, and environmental impact limit their use. This review highlights sustainable paths from biomass and plastic upcycling, and surveys catalytic transformations into carbocycles and specialty polymers, emphasizing their role as modular building blocks ...
Rosa Villaccio, Giuseppe Leone
wiley   +1 more source

An analytical model for quantitative evaluation of friction drag in directional sliding drilling. [PDF]

Sci Rep
Ma Z, Zhang H, Hu H, Li G, Tian S, Zhang Y, Wang T.   +6 more
europepmc   +1 more source

Orthogonal Band Planning and Synergistic Interference Suppression for Full-Duplex Acoustic Telemetry in Coiled Tubing of Deep Horizontal Wells. [PDF]

Sensors (Basel)
Geng H, Xie Y, Wu J, Wang Z, Han H, Yang D.   +5 more
europepmc   +1 more source

Analysis of pipe sticking due to wellbore uncleanliness using machine learning. [PDF]

Heliyon, 2023
A A, Abdullah M A, Roy R, P V S, Krishnan O K, Joseph J.   +5 more
europepmc   +1 more source

Beam–Solid Coupled Modeling of Full-Scale Drill String Dynamics in Ultra-Deep Wells with Restricted Borehole Clearance

Results in Engineering
Yikai Yu, Cancan Wang, Feng Chen, Xiang Meng, Wenchang Wang, Qinfeng Di   +5 more
semanticscholar   +1 more source

Model-Driven Processing of Passive Seismic While Drilling Data Acquired Using Distributed Acoustic Sensing Without Conventional Drill-Bit Pilot Measurements. [PDF]

Sensors (Basel)
Al-Hemyari E, Pevzner R, Tertyshnikov K.
europepmc   +1 more source

Study on mechanical characteristics of anchor drilling rig group for rapid excavating. [PDF]

Sci Rep, 2023
Xie M, Zhang HY, Li YQ, Ren Z, Nie RD.
europepmc   +1 more source

Research progress and development prospects on critical challenges in deepwater riserless drill string dynamics

Petroleum Science
Rong Wu, Xiaoqiang Guo, Xin-Ye Li, Liang He, Yue Liu, Chao-qun Xia   +5 more
semanticscholar   +1 more source

Research on an intelligent drilling parameter optimization method using sliding window segmentation based on the hydraulic-mechanical specific energy model. [PDF]

PLoS One
Li W, Liu Y, Li X, Deng B, Zhao H, Zhu L, Zain U.   +6 more
europepmc   +1 more source