Results 81 to 90 of about 116,692 (327)

A theory on power in networks

, 2016
The eigenvector centrality equation $\lambda x = A \, x$ is a successful compromise between simplicity and expressivity. It claims that central actors are those connected with central others.
Bozzo, Enrico, Franceschet, Massimo
core   +1 more source

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

Advanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source

Control technique for linepack of natural gas pipeline network

You-qi chuyun, 2020
The control technique for linepack of natural gas pipeline network has been studied to ensure the safe and stable operation of gas pipeline network. The classification, control principle and control standard of linepack were elaborated based on the current production and operation experience of natural gas pipeline network, and the control technique ...
Xitong JIANG, Zexin WANG, Hua LI, Jinjin LU, Boyue ZHANG   +4 more
openaire   +1 more source

Operator splitting method for simulation of dynamic flows in natural gas pipeline networks [PDF]

, 2016
We develop an operator splitting method to simulate flows of isothermal compressible natural gas over transmission pipelines. The method solves a system of nonlinear hyperbolic partial differential equations (PDEs) of hydrodynamic type for mass flow and ...
S. Zlotnik, A. Korotkevich, M. Chertkov
semanticscholar   +1 more source

Integrated Transcriptomics Reveals Evolutionary Trajectories and Cell Density‐Dependent Mechanisms in Aldosterone‐Producing Adenomas

Advanced Science, EarlyView.
Aldosterone‐producing adenomas (APAs) develop via two distinct paths: directly from adrenal zona glomerulosa (zG) cells, or stepwise from zG cells through aldosterone‐producing micronodules (APMs) before progressing to APAs. Advanced single‐cell and spatial analyses identified distinct cell states linked to oxidative stress and cell–cell interactions ...
Zhuolun Sun, Changying Jing, Martina Tetti, Siyuan Gong, Jia Wei, Yingxian Pang, Martin Reincke, Tracy Ann Williams   +7 more
wiley   +1 more source

The External Dimension of the EU Energy Security in the Field of Natural Gas – the Approach to Diversification of Suppliers

Czech Journal of International Relations, 2018
The paper deals with one aspect of the external dimension of EU energy security, namely the question of diversification of the natural gas supply in the case of import dependence.
Zbyněk Dubský, Daniel Pavliňák
doaj   +1 more source

Adiabatic approach for natural gas pipeline computations

, 2017
We consider slowly evolving, i.e. ADIABATIC, operational regime within a transmission level (continental scale) natural gas pipeline system. This allows us to introduce a set of nodal equations of reduced complexity describing gas transients in injection/
Chertkov, Michael, Korotkevich, Alexander   +1 more
core   +1 more source

Genome‐Wide Association Study Reveals Insect Genetics and Microbial Symbiont Effects on Susceptibility of Diaphorina citri to the Citrus Greening Pathogen, Candidatus Liberibacter Asiaticus

Advanced Science, EarlyView.
This study investigates the genetic and microbial factors influencing the susceptibility of Diaphorina citri to the citrus greening pathogen Candidatus Liberibacter asiaticus (CLas), employing a microbiome Genome Wide Association Study. The research identifies a key gene encoding an MFS‐type transporter contributing to CLas infectivity and abundance in
Kai Liu, Qingcui He, Zeyue Lin, Shixuan Huang, Zichun Zhong, Pingyang Zhu, Mengge Gao, Luyao Zhao, Han Jin, Guiting Wu, Gurr M. Geoff, Qunxin Han, Rui Pang   +12 more
wiley   +1 more source

A rapid calculation method for dynamic linepack of natural gas by coupling data and mechanism models

You-qi chuyun
ObjectivePipelines are essential for the long-distance natural gas transportation and play a crucial role in national energy security. The linepack, as a comprehensive operational parameter for natural gas pipeline networks, embodies both safety and ...
Xiong YIN, Jing ZHANG, Fei YANG, Yumo ZHU, Kenan SONG, Jinliang GENG, Kai WEN, Jing GONG   +7 more
doaj   +1 more source

The Catenary Method as an Alternative to the Horizontal Directional Drilling Trajectory Design in 2D Space

Energies, 2020
An increase in demand for energy natural resources has stimulated the development of gas pipeline networks in Europe, as well as globally. Also, in Poland in recent years there has been a significant increase in natural gas consumption.
Rafał Wiśniowski, Krzysztof Skrzypaszek, Paweł Łopata, Grzegorz Orłowicz   +3 more
doaj   +1 more source