Results 61 to 70 of about 1,642,785 (302)

Oxygen‐Driven Structural Reorganization by Trace Water Enabling Fast Li‐Ion Transport in a Pliable Solid Electrolyte

Advanced Energy Materials, EarlyView.
Trace water is acting as a constructive mediator in 2LiCl–GaF3, markedly increasing ionic conductivity while reorganizing local coordination. Hydration creates localized Li+ solvation environments and partially dissociates ion pairs, enhancing Li‐ion mobility.
Youngkyung Kim, Jae‐Seung Kim, Kwang Ho Shin, Jingyu Choi, Beom Jin Park, Jinyeong Choe, Jiwon Seo, Chanhyun Park, Jeongjae Lee, Dong‐Hwa Seo, Sung‐Kyun Jung   +10 more
wiley   +1 more source

Real-Time Data Transmission and Drilling Performance: Analyses Including Data Propagation Agility in Boreholes, Drilling Parameters and Information Transmission Through MPT Systems

Data
This research-related study examines the relevance of mud pulse telemetry (MPT) systems and their intersection with drilling performance, focusing on data transmission signal propagation performance and overall operation under different drilling ...
Andreas Nascimento, Gustavo Henrique Romeu da Silva, Diunay Zuliani Mantegazini, Matthias Reich, Fernando G. Martins   +4 more
doaj   +1 more source

Experimental investigations of the effect of oil based mud (OBM) contamination on long-term integrity of API cements [PDF]

, 2020
Well construction, well abandonment, and restoration of well integrity are the reasons at a broad level why cementing jobs are performed. During the well construction phase, the primary objective of the cementing job is to replace the drilling mud in the
Arbad, Nachiket
core  

Research on data transmission system of acoustic wave while drilling based on OFDM

IET Communications, 2023
Logging while drilling is to transmit down‐hole measurement data to the surface timely and accurately to ensure the normal production. Drilling data transmission system includes mud pulse and electromagnetic wave.
Zhong Zheng, Yanfeng Geng
doaj   +1 more source

Influence of a Post-dam Sediment Pulse and Post-fire Debris Flows on Steelhead Spawning Gravel in the Carmel River, California

Frontiers in Earth Science, 2021
Spawning gravel scarcity is a limiting factor for successful recovery of federally-threatened anadromous fish like steelhead of central California. A BACI-experimental design using bed particle counts from 2013 through 2021 shows that spawning-sized ...
Douglas P. Smith, Jamie Schnieders, Lauren Marshall, Katherine Melchor, Skylar Wolfe, Devon Campbell, Alyssa French, Joseph Randolph, Mattole Whitaker, Joseph Klein, Cory Steinmetz, Ruby Kwan   +11 more
doaj   +1 more source

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson, Alison M. Murray, Donald B. Brinkman   +2 more
wiley   +1 more source

Drag-Reduction Performance Evaluation of Controllable Hybrid Steering Drilling System

Shock and Vibration, 2021
The excessive drag/torque and the backing pressure is an important factor that restricts the improvement of the penetration rate and the extension of the drilling in the sliding drilling process of extended-reach wells and horizontal wells.
Jianyan Zou, Ping Chen, Tianshou Ma, Yang Liu, Xingming Wang   +4 more
doaj   +1 more source

Optimizing Self-Compacting Concrete through the Incorporation of Calcined Mud at 850°C

Journal of Building Materials and Structures, 2023
The quantity of mud increases annually at dam sites, thereby reducing their storage capacity. To extend the lifespan of these structures, dam dredging is an essential solution.
Rachida Mohamed Krachaï , Moulaï Abdellah Bouabdallah   +1 more
doaj   +1 more source

High Data Rate MWD Mud Pulse Telemetry – From Mysteries to Discovery

Journal of energy and power technology
Our new approach to MWD mud pulse telemetry offers significant increases over conventional data rates. Using waveguide acoustics, we show that common drilling communications channels support carrier frequencies exceeding several hundred Hertz.
Wilson C. Chin, Xiaoying Zhuang, Jamie A. Chin   +2 more
semanticscholar   +1 more source

Mindfulness and resilience: The experiences of global majority students in a mindfulness intervention Programme at a UK university

British Educational Research Journal, EarlyView.
Abstract Wellbeing in higher education (HE) in the United Kingdom has been increasingly prioritised for many institutions, with a growing demand for student support requests. There are various determinants in life that can influence mental health. As such, protected characteristics, including race, can indicate that students who are Black or Asian ...
Amy Bywater, Helen Keane
wiley   +1 more source