Results 101 to 110 of about 721,658 (313)

Influence of Casing Wear on Sealing Performance of Packer

Shiyou jixie, 2021
In the process of drilling oil and gas wells in western China, severe casing wear occurred in many ultra-deep wells; however, in some special cases, the packer had to be set in the casing wear interval.
Wang Jieli, Gao Baokui, Ma Chao, Chen Xingwang   +3 more
doaj  

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

FEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

Ultrasonic Detection Method for Sealing Performance of Special Thread Tubing

Shiyou jixie, 2021
The size and distribution of contact pressure on the sealing surface of special thread tubing have an important impact on its sealing performance. In this paper, pressure was applied on the double rough surface to simulate the contact process of sealing ...
Han Ting, Fan Jianchun, Huang Baoxin, Liu Shujie   +3 more
doaj  

Impact of Asymptomatic Intracranial Hemorrhage on Outcome After Endovascular Stroke Treatment

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Endovascular treatment (EVT) achieves high rates of recanalization in acute large‐vessel occlusion (LVO) stroke, but functional recovery remains heterogeneous. While symptomatic intracranial hemorrhage (sICH) has been well studied, the prognostic impact of asymptomatic intracranial hemorrhage (aICH) after EVT is less certain ...
Shihai Yang, Chengsong Yue, Zhuang Li, Xiaolei Shi, Haoxuan Zhu, Jie Yang, Linyu Li, Jiaxing Song, Shitao Fan, Gaoming Li, Wenzhe Sun, Zhixian Ye, Jiacheng Huang, Dahong Yang, Jinfu Ma, Xu Xu, Zhixi Wang, Lilan Wang, Guojian Liu, Fengli Li, Changwei Guo, Li Qi, Wenjie Zi   +22 more
wiley   +1 more source

Interface roughness effect on friction map under fretting contact conditions [PDF]

, 2010
In many industrial applications where fretting damage is observed in the contact (e.g. rotor/blade, electrical contacts, assembly joint, axe/wheel, clutch) the external loadings or geometry design cannot be changed. Therefore, the surface preparation and
Mathia, T.G., Kubiak, KJ, Kubiak, Krzysztof, Fouvry, S, Mathia, TG, Fouvry, S.   +5 more
core   +1 more source

Research on Reciprocating Sealing Performance of Hydraulic Impactor Under Stress Relaxation

Shiyou jixie, 2023
Hydraulic impactors have good application effects in hard formation drilling,but the sealing performance of reciprocating seals under high-temperature and high-pressure conditions has an important influence on the service life of them.Therefore ...
Qi Yue, Liu Gonghui, Li Jun, Zha Chunqing, Tian Yudong, Zhang Yi   +5 more
doaj  

Three-dimensional finite analysis of acetabular contact pressure and contact area during normal walking

Asian Journal of Surgery, 2017
Background: This study aims to analyze the contact areas and pressure distributions between the femoral head and mortar during normal walking using a three-dimensional finite element model (3D-FEM).
Guangye Wang, Wenjun Huang, Qi Song, Jinfeng Liang   +3 more
doaj   +1 more source

Feasibility and Tolerability of Performing Portable MRI for Neurological Disorders in an Outpatient Neurology Clinic: A Prospective Cohort

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Accessing brain magnetic resonance imaging (MRI) can be challenging, especially for underserved patients, which may lead to disparities in neurological diagnosis. Method This mixed‐methods study enrolled adults with one of four neurological disorders: mild cognitive impairment or dementia of the Alzheimer type, multiple sclerosis ...
Maya L. Mastick, Nomin Enkhtsetseg, Joseph Sadok, Matheus Mochetti, Annabel Sorby Adams, Jennifer Guo, Cristina Trapaga Hacker, Isabella Gomez Hjerthen, Seungwon Lee, Siddharth Satish, Andrew S. Ham, Justin Hill, Denis Balaban, Kevin Kyle, Rebecca L. Gillani, Marcelo Matiello, Aleksandar Videnovic, Eric C. Klawiter, W. Taylor Kimberly, Farrah J. Mateen   +19 more
wiley   +1 more source

Non-Contact Assessment of Blood Pressure Pulse Wave by Means of Vibrocardiography

, 2015
Central Blood Pressure (BP) has a well-known predictive value for many cardiovascular pathologies. The carotid artery pressure pulse is related to BP and can be measured without contact by Vibrocardiography (VCG), the vibrational signal associated to the
Casaccia, S, Scalise, L, Tomasini, EP, Cosoli, G, Rohrbaugh, JW, Casacanditella, L, Pietroni, F   +6 more
core  

Stamina of a non-gasketed flange joint under combined internal pressure, axial and bending loading : an experimental study

, 2009
The performance of a bolted flange joint is characterized mainly by its 'strength' and 'sealing capability'. A number of numerical and experimental studies have been conducted to study these characteristics under internal pressure loading conditions alone.
Abid, Muhammad, Nash, David
core   +1 more source