Results 81 to 90 of about 10,717 (265)

Optimization and Practice of Velocity String Drainage Gas Recovery Technology for Deep Carbonate Gas Reservoir

open access: yesShiyou jixie
A HTHP high-sulfur carbonate gas field with edge/bottom water in Central Asia is challenged by operating conditions such as liquid accumulation in wellbore, frequent pipe-diameter varying in production string, high wellhead pressure, high temperature ...
Chai Hui   +8 more
doaj  

Learning Moisture‐Induced Damage From Vision: Diffusion Models for Real‐Time Monitoring of Additive Manufacturing Processes

open access: yesAdvanced Science, EarlyView.
We introduce a vision‐based real‐time monitoring system for additive manufacturing that detects subtle moisture‐induced degradation via a diffusion model‐based framework. The approach enables nondestructive assessment of moisture‐induced damage level and mechanical performance and establishes a practical route toward more intelligent, reliable, and ...
Jiyoung Jung   +4 more
wiley   +1 more source

Development and Application of CT Inner Blanking Plug

open access: yesShiyou jixie, 2016
With the extension of oil field exploitation period, the inner pressure isolation issue in snubbing operation of the coiled tubing (CT) velocity string needs to be addressed.Combined with the feature of velocity string, wellhead suspension device as well
吕维平   +5 more
doaj  

Synergistic Integration of Artificial Merkel Disc and Meissner Corpuscle via Dermal Papillary Structures for Mechanically Filtered Multimodal Tactile Sensing

open access: yesAdvanced Science, EarlyView.
A multimodal tactile sensor module that mimics the spatial arrangement and function of Merkel discs and Meissner corpuscles within the human papillary structure operates in a self‐powered manner, responding to both dynamic and static stimuli, achieving tactile perception more similar to human skin.
Jaehyeong Kim   +4 more
wiley   +1 more source

Improvement of Water Drainage and Gas Production Technology by Velocity String in Offshore Gas Well

open access: yesShiyou jixie, 2018
Most of gas wells in East China Sea produce water and are prone to liquid loading, leading to the reduced production or even halted production. It is necessary to implement water drainage and gas production measures to increase recovery.
Zhong Baoku   +3 more
doaj  

Human Urine Stem Cells Alleviate Pulmonary Fibrosis via Inhibiting Macrophage‐Myofibroblast Transition

open access: yesAdvanced Science, EarlyView.
Therapeutic role and mechanism of human urine stem cells (hUSCs) in pulmonary fibrosis. hUSCs alleviated pulmonary fibrosis by selectively inhibiting macrophage‐myofibroblast transition (MMT) in two ways: on one hand, hUSCs inhibited mitochondrial reactive oxygen species (mtROS) production and apoptosis/senescence of epithelial cells in pulmonary ...
Zhou‐Hang Zhang   +10 more
wiley   +1 more source

The Use of Coiled Tubing as a Velosity String

open access: yesActa Montanistica Slovaca, 2004
Liquid loading is a problem in many gas wells especially older and depleted type reservoirs. If steps are not taken to minimize this effect, it will severely limit the production or even "kill" the well. This is the result of insufficient transport energy in the gas phase to carry the liquid that will accumulate around the well bore.
Simon, Katarina   +2 more
openaire   +2 more sources

Dual‐Module Near‐Infrared Fluorophores Discovery System via Knowledge Transfer

open access: yesAdvanced Science, EarlyView.
This study presents a dual‐module deep learning system for the design of near‐infrared (NIR) fluorophores. A large molecular library is generated and analyzed, leading to the suggestions of promising candidates. The effectiveness of the system is further validated through the synthesis, characterization, and in vivo imaging, demonstrating its potential
Yixin Zhu   +7 more
wiley   +1 more source

Application of Shock Absorber based on Bit-rock Interaction

open access: yesShiyou jixie, 2022
In order to obtain the optimal parameters of shock absorber and thus reduce the downhole vibration intensity in the process of rock-breaking drilling of bit,on the basis of considering the dynamic coupling of drill string,bit and rock system,taking the ...
Hu Zhiqiang   +5 more
doaj  

The E3 Ubiquitin Ligase RLIM Safeguards Oligodendrocyte Development and Myelination by Targeting SLC7A11 for Polyubiquitination to Regulate Ferroptotic Resistance

open access: yesAdvanced Science, EarlyView.
RLIM‐mediated SLC7A11 polyubiquitination is required for SPTBN2‐mediated trafficking and membrane localization of SLC7A11, which enables oligodendrocyte precursor cells to be resistant to ferroptosis and safeguards oligodendrocyte lineage progression and thus myelination.
Yuwei Li   +8 more
wiley   +1 more source

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