scholarly journals Microfluidic Platform for Analyzing the Thermotaxis of C. elegans in a Linear Temperature Gradient

2017 ◽  
Vol 33 (12) ◽  
pp. 1435-1440 ◽  
Author(s):  
Sunhee YOON ◽  
Hailing PIAO ◽  
Tae-Joon JEON ◽  
Sun Min KIM
Keyword(s):  
Temperature Gradient ◽  
Linear Temperature ◽  
Microfluidic Platform ◽  
C Elegans ◽  
Linear Temperature Gradient

An Analytical Solution Countercurrent Heat Transfer Between Parallel Vessels With a Linear Axial Temperature Gradient

1988 ◽  
Vol 110 (3) ◽  
pp. 254-256 ◽  
Author(s):  
E. H. Wissler
Keyword(s):  
Heat Transfer ◽  
Temperature Field ◽  
Heat Exchange ◽  
Temperature Gradient ◽  
Infinite Medium ◽  
Linear Temperature ◽  
Linear Temperature Gradient ◽  
Axial Temperature ◽  
Mixed Mean ◽  
The Difference

Presented in this paper is a solution for countercurrent heat exchange between two parallel vessels embedded in an infinite medium with a linear temperature gradient along the axes of the vessels. The velocity profile within the vessel is assumed to be parabolic. This solution describes the temperature field within the vessels, as well as in the tissue, and establishes that the intravessel temperature is not uniform, as is generally assumed to be the case. An explicit expression for the intervessel thermal resistance based on the difference between cup-mixed mean temperatures is derived.

scholarly journals Internal Force Analysis of Parabolic Arch Considering Shear Effect under Gradient Temperature

2021 ◽  
Vol 631 (1) ◽  
pp. 012053
Author(s):  
Fulin Shen ◽  
Xiaochun Song
Keyword(s):  
Temperature Gradient ◽  
Axial Force ◽  
Slenderness Ratio ◽  
Bending Moment ◽  
Internal Force ◽  
Gradient Field ◽  
Parameter Study ◽  
Linear Temperature ◽  
Linear Temperature Gradient ◽  
Parabolic Arch

Abstract This paper theoretical analysis the internal force of the fixed parabolic arches under radient temperature gradient field incorporating shear deformations. The effective centroid of the arch-section under linear temperature gradient is derived. Based on force method and energy method, the analytical solutions of the internal force of fixed parabolic arches at pre-buckling under linear temperature gradient field are derived. A parameter study was carried out to study the influence of linear temperature gradient on the internal force of the fixed parabolic arches with different rise-span ratio and varying slenderness ratio. It is found that the temperature gradient and the rise-span ratio has a significant influence on the internal force of the parabolic arches, the influence of shear deformation causes the bending moment increase while the axial force decreases, and the axial force of parabolic arches decreases as the rise-span ratio increases.

Dispersion Adjustment Effect of the Chirped Fiber Gratings in Chirped Pulse Amplification System by Continuous Linear Temperature Gradient Field

2018 ◽  
Vol 47 (5) ◽  
pp. 514005
Author(s):  
唐书奎 TANG Shu-kui ◽  
杨直 YANG Zhi ◽  
李峰 LI Feng ◽  
李强龙 LI Qiang-long ◽  
魏玉凤 WEI Yu-feng ◽  
...  
Keyword(s):  
Temperature Gradient ◽  
Gradient Field ◽  
Continuous Linear ◽  
Fiber Gratings ◽  
Linear Temperature ◽  
Chirped Pulse ◽  
Pulse Amplification ◽  
Linear Temperature Gradient ◽  
Amplification System ◽  
Chirped Pulse Amplification

LINEAR AND NONLINEAR THERMOELASTIC ANALYSES OF BEAMS UNDER TEMPERATURE GRADIENT

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Yong-Lin Pi ◽  
Mark Andrew Bradford
Keyword(s):  
Temperature Gradient ◽  
Cross Section ◽  
Axial Direction ◽  
Gradient Field ◽  
Linear Temperature ◽  
Temperature Changes ◽  
Linear Temperature Gradient ◽  
Linear And Nonlinear ◽  
Elastically Restrained ◽  
Elastic Restraints

In a structure, beams are often connected with other members such as columns, which provide considerable restraints against the rotation and extension of the beam ends. When a beam is subjected to an in-plane temperature gradient field, the temperature gradient tends to change the curvature of the beam in the transverse direction and expand the beam in the axial direction. The restrained actions will produce bending moments and compressive forces in the beam, which increase with an increase of the temperature differential and average temperature of the temperature gradient field. When these actions reach critical values, the elastically restrained beam may bifurcate from its primary in-plane equilibrium state to a lateral-torsional buckled equilibrium configuration. This paper carries out linear and nonlinear thermoelastic analyses of an elastically restrained beam of doubly symmetric open thin-walled cross-section that is subjected to a linear temperature gradient field over its cross-section. It is found that geometric nonlinearity influences the thermoelastic responses of the beam to the temperature changes significantly. The influence decreases with an increase of the stiffness of the elastic restraints.

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