Results 41 to 50 of about 422,318 (308)

Advanced Bearing System for Ultra Precision Plastic Electronics Production Systems [PDF]

open access: yes, 2014
The aims of this MSc research project are to investigate the application of aluminium for the main components of an ultra-precision spindle defined for use in R2R production systems and to produce a reel to reel rotary aluminium hydrostatic bearing ...
Zhao, Gang
core  

Investigation of Water-Repellent Thrust Bearing

open access: yesTribology Online, 2010
In this study, the flat thrust bearing was developed by actively exploiting the slip flow generated on a water-repellent surface. In order to produce a load, bearing has a structure that generates pressure flow by using the discontinuity of the shear ...
Akitoshi Takeuchi
doaj   +1 more source

Theoretical and Experimental Study of Friction Characteristics of Textured Journal Bearing

open access: yesMicromachines, 2023
The proposed lubrication theory of textured journal bearing is a major innovation in the study of the tribological properties of surface morphology.
Hongtao Wang   +3 more
doaj   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

Dynamic Characteristics Analysis of Circumferential Rod Fastening Rotor-Bearing System Considering Contact Stiffness

open access: yes发电技术, 2021
In order to explore the dynamic characteristics of the circumferential rod fastening rotor-bearing system, a numerical model of three-dimensional Gaussian random rough surface was established by using the method of autocorrelation function. Moreover, the
Ying CUI, Han ZHANG, Yuxi HUANG
doaj   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch   +13 more
wiley   +1 more source

The Effect of Lubrication on the Vibration of Roller Bearings

open access: yesMATEC Web of Conferences, 2018
Proper lubrication is crucial to ensure smooth operation in machineries. In rolling bearing, the improper lubrication may induce high friction and vibration level due to metal to metal contact between the rolling elements.
Yusof N.F.M., Ripin Z.M.
doaj   +1 more source

Study on the rupture surface morphology and ultimate bearing capacity of a self-anchored test pile

open access: yesScientific Reports, 2022
The expression of the ultimate bearing capacity of the upper uplift pile and the lower compressive pile of a self-anchored test pile was obtained by studying their rupture surface morphology.
Lin Zhu, Hailong Ma
doaj   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

open access: yesMolecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

Effect of Main Bearing Surface Profile on Crankshaft Lubrication and Vibration Characteristic

open access: yesJixie chuandong, 2022
Taking the main bearing-main journal of a six-cylinder diesel engine as the research object,based on the elastic- -fluid lubrication theory and the micro-bump contact theory and considering factors such as journal misalignment and main bearing surface ...
Guixiang Zhu   +5 more
doaj  

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