Results 91 to 100 of about 2,605 (265)

Research on Load Distribution Uniformity of Clamping System of CT Injector Head

Shiyou jixie, 2020
There is no systematic study on the load distribution of the clamping blocks in the entire clamping area of the coiled tubing(CT)injector head. To address the problem, based on the basic theory of structural mechanics, a mechanical model of the injector ...
Hu Zhiqiang, Liu Ying, Song Yang, Yang Gao, Yang Zhimin, Song Zhiguo   +5 more
doaj  

The KIF6‐RBP Complex Orchestrates mRNA Transport Required for Sperm Flagellar Assembly

Advanced Science, EarlyView.
Two homozygous deleterious KIF6 variants are identified in unrelated men with impaired sperm motility. Mouse models and multi‐omics analyses reveal that KIF6 cooperates with the RNA‐binding proteins FMRP and FXR1 to deliver mRNAs essential for sperm flagellar assembly, linking disrupted mRNA transport to reduced abundance of key structural and ...
Chunbo Xie, Sibing Yi, Xinle Lin, Shen Zhang, Weili Wang, Shimin Yuan, Lanlan Meng, Yong Li, Chen Tan, Chunjia Wei, Yanyan Yu, Yaoqiong Liang, Huan Zhang, Liang Hu, Guangxiu Lu, Wenbin He, Qianjun Zhang, Juan Du, Ge Lin, Chaofeng Tu, Yue‐Qiu Tan   +20 more
wiley   +1 more source

AMESim-based Study on Dynamic Behavior of Gripping Force of Coiled Tubing Injector Head

Shiyou jixie, 2018
Many problems occur in the coiled tubing operation in oil and gas wells, including coiled tubing slipping, slippage and tubing bite, which seriously threaten the safety of the operation and the life of the coiled tubing.
Ma Weiguo, Lu Lei, Wang Gang, Li Jinhong, Mei Xuesong, Yang Yicheng   +5 more
doaj  

Nasogastric tube coiled around endotracheal tube

Journal of Anaesthesiology Clinical Pharmacology, 2014
Acharya, Gaurav, Arora, Kishore Kumar, Kumar, Dewesh   +2 more
openaire   +2 more sources

A Multimodal Haptic Feedback Interface with Thin‐Film Compliant Mechanism

Advanced Science, EarlyView.
Multimodal haptic devices can trigger different mechanoreceptors, enabling richer haptic information. This study presents an electromagnetic multimodal haptic device capable of delivering indentation, stretch, and vibration stimuli. The device is enabled by a novel polymer thin‐film compliant mechanism that provides high translational compliance along ...
Jingjing Wan, Emanuele Nicotra, James Davies, Kefan Zhu, Quang Anh Nguyen, Sinuo Zhao, Chi Cong Nguyen, Bibhu Sharma, Adrienne Ji, Hermione Truong, Patrick Pruscino, Tan Huynh, Phuoc Thien Phan, Hoang‐Phuong Phan, Nigel Hamilton Lovell, Thanh Nho Do   +15 more
wiley   +1 more source

A Smart Fluid‐Hydraulic System Based on MRF Valve Control and Its Application in Flexible Grasping

Advanced Science, EarlyView.
This study introduces a smart fluid hydraulic system using MRF valve control for flexible gripping. An MRF‐MSV with an integrated excitation coil and micro‐textured damping channels is designed and validated; micro‐texturing increases hydraulic resistance. Coupled with a soft actuator, the MRF‐MSV enables dynamic bending and grasping.
Linfeng Huo, Hui Ji, Ruidong Hong, Songlin Nie, Fanglong Yin, Zhonghai Ma   +5 more
wiley   +1 more source

Design of Jar Tool for Coiled Tubing Drilling

Shiyou jixie, 2019
In the coiled tubing drilling, due to the characteristics of the coiled tubing, friction self-locking is prone to occur after put on weight, which leads to problems such as low axial force transmission efficiency and difficulty in horizontal section ...
Miao Zhipeng, Xia Hongnan, Tong Qijin, Liu Xianming, Guan Feng   +4 more
doaj  

A Universal Protein Ladder for Standardization of Diverse FRET Assays

Advanced Science, EarlyView.
Translating FRET measurements from in vitro to intracellular environments requires universal benchmarks. We present a modular protein ladder using TPR motifs to harmonize data across diverse platforms. This predictable calibration curve bridges single molecule FRET measurements, with cell based measurements including FLIM‐FRET.
Evelyn R. Smith, Katie L. Gelder, Lewis Hunter‐Craig, Daniel A. Bose, Timothy D. Craggs, Alison E. Twelvetrees   +5 more
wiley   +1 more source

Calculation of Annular Flow Resistance of Coiled Tubing in Slimhole Based on Hyperbolic Model

Shiyou jixie, 2019
Most of the researches on the annulus flow resistance in China are focused on the conventional drilling annulus flow resistance, few study is involved in the calculation of the annular flow resistance of coiled tubing drilling in ø89.0 mm slimhole.
Hou Xuejun, Song Hongqi, Jin Rui, Zhang Hui, Qian Feng, Wang Zhengku, Gao Peng   +6 more
doaj  

Programming Structural Symmetry and Emission in Low‐Dimensional Hybrid Perovskites via Time and Temperature

Advanced Science, EarlyView.
We demonstrate programmable structural symmetry and emission in benzylammonium‐based low‐dimensional hybrid perovskites. Continuous shaking transforms orthorhombic platelets into a lower‐symmetry monoclinic phase with broadband emission, whereas thermal activation drives the reverse pathways toward a higher‐symmetry configuration resembling the ...
Luiz G. Bonato, Sirous Khabbaz Abkenar, Balaji Dhanabalan, Quentin Evrard, Luca Goldoni, Sergio Marras, Giorgio Divitini, Milena P. Arciniegas   +7 more
wiley   +1 more source