نتایج جستجو برای: temperature gradients

تعداد نتایج: 485785  

Journal: :Communications in Asteroseismology 2007

Journal: :Journal of The Korean Astronomical Society 2004

Journal: :Nano letters 2009
Eric A Hoffmann Henrik A Nilsson Jason E Matthews Natthapon Nakpathomkun Ann I Persson Lars Samuelson Heiner Linke

When a quantum dot is subjected to a thermal gradient, the temperature of electrons entering the dot can be determined from the dot's thermocurrent if the conductance spectrum and background temperature are known. We demonstrate this technique by measuring the temperature difference across a 15 nm quantum dot embedded in a nanowire. This technique can be used when the dot's energy states are se...

Journal: :Investigative ophthalmology 1962
B SCHWARTZ M R FELLER

Measurements of the temperature of the various parts of the rabbit eye under both local and general Nembutal anesthesia were made ivith the thermistor as the temperature-measuring device at a room temperature of 22 to 24° C, and a relative humidity of 33 to 53 per cent. The equipment and its calibration are described in detail. The existence of a temperature difference of 6° C. (corrected for t...

2005
Morten Willatzen Kamyar Malakpoor Erwin Vondenhoff

1st of november 2005 2 Contents 1 Introduction 1 2 Estimation of temperature gradients in laminar flow through a cylindrical pipe-the assumption of a linear change in wall temperature with axial distance 1 2.1 Temperature distribution in a pipe with circular cross-section assuming a linear wall temperature variation with distance. .. .. 2 3 A ray-tracing analysis of the flow-meter error in the ...

Journal: :Analytical chemistry 2011
David Collins Ekaterina Nesterenko Damian Connolly Mercedes Vasquez Mirek Macka Dermot Brabazon Brett Paull

A new direct contact platform for capillary column precise temperature control based upon the use of individually controlled sequentially aligned Peltier thermoelectric units is presented. The platform provides rapid temperature control for capillary and microbore liquid chromatography columns and allows simultaneous temporal and spatial temperature programming. The operating temperature range ...

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