Results 31 to 40 of about 693,233 (278)

Theoretical Study of the Static and Dynamic Characteristics of a Slotted Adaptive Hydrostatic Thrust Bearing with a Regulator of the Lubricant Output Flow

Mathematics, 2022
This manuscript considers the design of a slotted adaptive hydrostatic thrust bearing with a regulator of the lubricant output flow. A theoretical study of its static and dynamic characteristics was carried out.
Vladimir Kodnyanko, Andrey Kurzakov, Alexey Surovtsev, Lilia Strok, Olga Grigorieva, Maxim Brungardt, Svetlana Belyakova, Ludmila Gogol   +7 more
doaj   +1 more source

Study on Vibration Characteristics of Diamond Thrust Bearing Pack in PDM assembly

Shiyou jixie, 2021
Diamond thrust bearing pack is an important part of mud motor. In order to study the vibration characteristics of the diamond thrust bearing pack in actual drilling and analyze the influence of vibration signals on the diamond thrust bearing pack, in the
Zhang Wei, Wang Yu, Sun Jianyue, Zhang Kai, Kong Lingrong   +4 more
doaj  

Translating whole‐genome doubling into precision medicine in cancer

Molecular Oncology, EarlyView.
Whole‐genome doubling creates a WGD‐positive tumor state characterized by persistent chromosomal instability, karyotypic diversification, and cellular stress. These same biological pressures drive aggressive tumor evolution while exposing therapeutic vulnerabilities, providing a rationale for WGD‐informed precision medicine. Whole‐genome doubling (WGD)
Sejung Lee, Junghyeok Lim, Jinhyuk Bhin
wiley   +1 more source

Investigation of Stress Variation in Push-the-Bit Rotary Steering Bearings Under Weight on Bit and Push Forces

Cejing jishu
As the key component of the push-the-bit rotary steerable system, the accuracy and reliability of the bearing system directly affect the control accuracy and drilling efficiency of the drilling tool on the borehole trajectory.
SHEN Bin, YANG Hao, XUE Zhejing, LI Wei, CHENG Feng, LU Lu, WU Jie   +6 more
doaj   +1 more source

Analysis on shafting axial vibration of marine thrust bearing considering pad geometrical parameters

Zhongguo Jianchuan Yanjiu, 2019
[Objectives] The overall stiffness of thrust bearing has an important influence on the natural frequency of the shafting axial vibration,but there is not much research on the influence of the oil film stiffness of the thrust bearing,Therefore,to study ...
ZHANG Jinguo, TIAN Jiabin, HE Tao
doaj   +1 more source

Somatostatin receptor 4 (SSTR4) is a tumor suppressor in cutaneous and head & neck squamous cell carcinomas

Molecular Oncology, EarlyView.
This study identifies somatostatin receptor 4 (Sstr4) as a critical tumor suppressor against skin and head/neck cancers (HNSCC, cSCC, and BCC). The loss of Sstr4 removes a check on cell growth, causing hyperactivation of the MAPK‐ERK signaling pathway (↑).
Ali Taqvi, Tuan Khang Huynh, Adway Kadam, Zahra Kardan, Yue Yan, Amina Jamal Laham, Sampath Kumar Loganathan   +6 more
wiley   +1 more source

Inertia and Couple-Stress Effects in a Curvilinear Thrust Hydrostatic Bearing [PDF]

, 2017
The flow of a couple-stress lubricant in a clearance of a curvilinear thrust hydrostatic bearing with impermeable walls is considered. The flow in the bearing clearance is considered with inertia forces.
A. Walicka, Walicka, A., Falicki, J., J. Falicki, P. Jurczak, Jurczak, P.   +5 more
core   +1 more source

Development of the mathematical model for the prediction of friction loss in turbocharger bearing components

Nihon Kikai Gakkai ronbunshu, 2018
It is required to examine the characteristics of turbochargers for automobiles using one-dimensional simulation from the viewpoint of estimating total engine performance.
Satoshi SAKAGAMI, Akane UEMICHI, Yudai YAMASAKI, Shigehiko KANEKO, Tatsuya KUBOYAMA, Yasuo MORIYOSHI   +5 more
doaj   +1 more source

Thermal Characteristics Study of the Bump Foil Thrust Gas Bearing

Applied Sciences, 2021
In this paper, a thermo-hydrodynamic model of the bump foil thrust gas bearing is developed, which solves the coupled gas film three-dimensional energy equation, non-isothermal Reynolds equation, and the foil deformation equation.
Xiaomin Liu, Changlin Li, Jianjun Du, Guodong Nan   +3 more
doaj   +1 more source

Arginine methylation as a regulatory ratchet in cancer: From substrate selection to malignant‐state stabilization

Molecular Oncology, EarlyView.
Arginine methylation can be viewed as a persistence‐prone post‐translational modification regulated by a network of PRMTs. Competitive and compensatory interactions among PRMTs can redistribute methylation across substrate pools shaped by sequence, structural, spatial, and environmental layers, reinforcing RNA‐processing, chromatin, and signaling ...
So Hyun Kwon, Ji Min Lee
wiley   +1 more source