Results 101 to 110 of about 628,643 (214)

Energy-Dominated Local Carbon Emissions in Beijing 2007: Inventory and Input-Output Analysis

The Scientific World Journal, 2012
For greenhouse gas (GHG) emissions by Beijing economy 2007, a concrete emission inventory covering carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) is presented and associated with an input-output analysis to reveal the local GHG embodiment ...
Shan Guo, J. B. Liu, Ling Shao, J. S. Li, Y. R. An   +4 more
doaj   +1 more source

What is turbulence, what is fossil turbulence, and which ways do they cascade? [PDF]

arXiv, 2012
Turbulence is defined as an eddy-like state of fluid motion where the inertial-vortex forces of the eddies are larger than any other forces that tend to damp the eddies out. By this definition, turbulence always cascades from small scales (where the vorticity is created) to larger scales (where other forces dominate and the turbulence fossilizes ...
arxiv  

Turbulence and turbulent mixing in natural fluids [PDF]

Physica Scripta, 2010
23 pages 12 figures, Turbulent Mixing and Beyond 2009 International Center for Theoretical Physics conference, Trieste, Italy. Revision according to Referee comments.
openaire   +3 more sources

Encoding Smart Microjoints for Microcrawlers with Enhanced Locomotion

Advanced Intelligent Systems, 2020
Usually, it is indispensable for traditional functional robots to use flexible joints that integrate sophisticated machinery and control systems to achieve precise operability and efficient mobility. At the microscale, however, the conventional design of
Qianying Chen, Pengyu Lv, Tian-Yun Huang, Jianyong Huang, Huiling Duan   +4 more
doaj   +1 more source

Poynting's theorem in magnetic turbulence [PDF]

arXiv, 2017
Poynting's theorem is used to obtain an expression for the turbulent power-spectral density as function of frequency and wavenumber in low-frequency magnetic turbulence. No reference is made to Elsasser variables as is usually done in magnetohydrodynamic turbulence mixing mechanical and electromagnetic turbulence.
arxiv  

Experimental study on the change of the orientation of high aspect ratio nozzle slit relative to the airflow

Scientific Reports
An experimental study to investigate the flow of liquid jet issued from a high aspect ratio nozzle slit into an incoming airflow by changing the orientation angle from the incoming free-stream was performed.
A. Hatami, M. Tadjfar
doaj   +1 more source

A minimum-domain impulse theory for unsteady aerodynamic force with discrete wake

Theoretical and Applied Mechanics Letters, 2017
We extend the impulse theory for unsteady aerodynamics, from its classic global form to finite-domain formulation, then to a minimum-domain version for discrete wake. Each extension has been confirmed numerically. The minimum-domain theory indicates that
Linlin Kang, Luoqin Liu, Weidong Su, Jiezhi Wu   +3 more
doaj   +1 more source

Cluster turbulence

, 2008
10 pages, 4 figures, to appear in Ringberg Workshop on M87, eds. K. Meisenheimer and H-J. Roeser, Springer Verlag.
Greg L. Bryan, Michael L. Norman
openaire   +2 more sources

Lamb-Wave-Based Multistage Damage Detection Method Using an Active PZT Sensor Network for Large Structures

Sensors, 2019
A multistage damage detection method is introduced in this work that uses piezoelectric lead zirconate titanate (PZT) transducers to excite/sense the Lamb wave signals.
M. Saqib Hameed, Zheng Li, Jianlin Chen, Jiahong Qi   +3 more
doaj   +1 more source

Turbulences [PDF]

, 2009
Ce document est une synthèse de mes travaux de recherche en Physique qui s'articule selon trois axes: turbulence hydrodynamique, magnétohydrodynamique et turbulence d'onde. J'ai développé des techniques de mesure originales destinées à l'analyse lagrangienne de la turbulence hydrodynamique: il s'agit de suivre le mouvement de particules entraînées par ...
openaire   +1 more source