(1) These conductive fibers alter their conductivity in response to stretching, temperature, or moisture.

(2) Another factor affecting the flow of heat is conductivity , or the ability of material to transfer heat efficiently.

(3) This value is higher than the activation energy of electrolyte conductivity , but comparable to that of other ion channels.

(4) This is amply testified by his scientific works on the theory of heat conductivity in liquids.

(5) Now they have shown a specific way in which the molecule's shape affects its conductivity .

(6) One way to prevent flashover is to add some conductivity to the surface of the insulator, so charge can bleed away before it builds up.

(7) So, semiconductors and conducting polymers have much lower conductivity than metals.

(8) Other considerations include heat conductivity and thermal expansion.

(9) In hot-water heaters and boilers, the sticky scales have poor heat conductivity and so transfer heat poorly.

(10) Thus, a material, to be a good insulator, would have a low thermal conductivity, whereas a radiator would have a high rate of conductivity to dissipate the heat.

(11) The construction is usually stainless steel wrapped around copper or aluminum for good heat conductivity .

(12) As more salts are dissolved in the water, however, its conductivity increases and currents begin to flow.

(13) This calculated conductivity is higher than the measured conductivity since it does not include the inter-conduit resistance.

(14) The percentage of total salts was calculated from conductivity readings using conversions as suggested by Jackson.

(15) Another significant aspect of this breakthrough is the fact that only one electron from the atom is needed to turn molecular conductivity on or off.

(16) The type of frame material on a storm window unit is important because it contributes to the storm window's heat conductivity and maintenance.

(17) These ions, which include aluminum and silicon dioxide, are chosen for their relative conductivity and form the actual pathways along which current flows.

(18) These mobile charges should make the surfaces conductive, but past experiments have failed to show any conductivity .

(19) As expected, the relative change of the effective conductivity is larger for higher volume fractions and higher membrane conductivity .

(20) Measured data may include electrical properties of the volume of interest such as conductivity and dielectric constant.

(21) A bipolar junction transistor is provided that includes an intrinsic collector region of first conductivity type in a semiconductor substrate.

(22) Thanks to the high copper content the conductivity of the material is significantly higher than conventional conductive compounds.

(23) At the same time, the single-channel conductance is proportional to the buffer conductivity in a wide range of salt concentrations.

(24) The apparatus has been used to test a material with known heat conductivity .

(25) Other reasons that aluminum welding is different are due to its high thermal conductivity and low melting temperature.

(26) In addition, new, more precise design methods will be needed to address both the application of brittle composite materials and the integration of intricate cooling schemes for a wide range of material thermal conductivities .

(27) It has good electrical and thermal conductivities and high reflectivity to both heat and light.

(28) Methods include visual examination, study of the absorption spectrum, and measurement of refractive indices, specific gravity, and thermal conductivities .

(29) Real-time PCR instruments produce rapid changes in the temperature around cuvettes by efficient air exchange and/or thermal conductivity through solid-phase material.

(30) The upshot is that the ratio of thermal to electrical conductivity depends primarily on the square of the thermal speed.