Results 131 to 140 of about 7,237,339 (340)

Validation of the CFD code Flow-3D for the free surface flow around the ships’ hulls [PDF]

This paper describes the Computational Fluid Dynamics (CFD) calculations that were completed to model the free surface flow around the ships’ hulls.
Chin, S, Muk-Pavic, E, Spencer, D
core  

Optical Flow Guided Feature: A Fast and Robust Motion Representation for Video Action Recognition

, 2018
Motion representation plays a vital role in human action recognition in videos. In this study, we introduce a novel compact motion representation for video action recognition, named Optical Flow guided Feature (OFF), which enables the network to distill ...
Kuang, Zhanghui, Ouyang, Wanli, Sheng, Lu, Sun, Shuyang, Zhang, Wei   +4 more
core   +1 more source

Metformin promotes mitochondrial integrity through AMPK‐signaling in Leber's hereditary optic neuropathy

FEBS Open Bio, EarlyView.
Metformin mediates mitochondrial quality control in Leber's hereditary optic neuropathy (LHON) fibroblasts carrying mtDNA mutations. At therapeutic levels, metformin activates AMPK signaling to restore mitochondrial dynamics by promoting fusion and restraining fission, while preserving mitochondrial mass, enhancing autophagy/mitophagy and biogenesis ...
Chatnapa Panusatid, Rapasviranda Soiyangsuk, Maneeluck Tanadjindarat, Chayanon Peerapittayamongkol   +3 more
wiley   +1 more source

FGFR Like1 drives esophageal cancer progression via EMT, PI3K/Akt, and notch signalling: insights from clinical data and next‐generation sequencing analysis

FEBS Open Bio, EarlyView.
Clinical analysis reveals significant dysregulation of FGFRL1 in esophageal cancer (EC) patients. RNAi‐coupled next‐generation sequencing (NGS) and in vitro study reveal FGFRL1‐mediated EC progression via EMT, PI3K/Akt, and Notch pathways. Functional assays confirm its role in tumor growth, migration, and invasion.
Aprajita Srivastava, Anoop Saraya, Deepak Gunjan, Rinu Sharma   +3 more
wiley   +1 more source

Pyramidal Optical Flow Method-Based Lightweight Monocular 3D Vascular Point Cloud Reconstruction

IEEE Access, 2019
We propose a method for reconstructing a 3D point cloud of the organ model based on optical flow and take the 3D cardiovascular model reconstruction as an example.
Chang Liu, Zhao Zhang, Huangxing Lin, Yaqiong Hu, Eyk Ng, Dangzhao Chen, Lei Zhao, Yifan Lu, Xin Dai, Shipu Xu, Xiaojun Liu, Ning Xie   +11 more
doaj   +1 more source

Pressurization of cryogens: A review of current technology and its applicability to low-gravity conditions [PDF]

A review of technology, history, and current status for pressurized expulsion of cryogenic tankage is presented. Use of tank pressurization to expel cryogenic fluids will continue to be studied for future spacecraft applications over a range of operating
Vandresar, N. T.
core   +1 more source

Mean- Field Approximation and a Small Parameter in Turbulence Theory

, 2000
Numerical and physical experiments on two-dimensional (2d) turbulence show that the differences of transverse components of velocity field are well described by a gaussian statistics and Kolmogorov scaling exponents.
A. M. Polyakov, A. M. Polyakov, A. S. Monin, B. I. Shraiman, G. Boffetta, K. Gawedzki, L. D. Landau, L. Smith, L. Smith, M. Cherkov, P. Tabeling, R. H. Kraichnan, U. Frisch, U. Frisch, V. Yakhot, V. Yakhot, V. Yakhot, V. Yakhot, Victor Yakhot, Ya. G. Sinai, Yakhot Orszag   +20 more
core   +1 more source

Pioglitazone plus (−)‐epigallocatechin gallate: a novel approach to enhance osteogenic performance in aged bone marrow mesenchymal stem cells

FEBS Open Bio, EarlyView.
Aged human bmMSCs are seeded in the scaffold. Osteoblastic induction can slightly increase cell's bone‐forming activity to produce bone‐like tissues, shown as the sporadic xylenol orange‐stained spots (the lower left image). Notably, pioglitazone plus EGCG co‐treatment dramatically increases cell's bone‐forming activity and bone‐like tissue production (
Ching‐Yun Chen, Jia‐Ci Jhang, Chun‐Yi Peng, Quốc Cường Nguyễn, Feng‐Huei Lin, Hung‐Ming Wu, Shankung Lin   +6 more
wiley   +1 more source

Sun-Like Magnetic Cycles in the Rapidly-Rotating Young Solar Analog HD 30495

, 2015
A growing body of evidence suggests that multiple dynamo mechanisms can drive magnetic variability on different timescales, not only in the Sun but also in other stars.
Egeland, Ricky, Hall, Jeffrey C., Henry, Gregory W., Metcalfe, Travis S.   +3 more
core   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source