We now have extensive X-ray (Yohkoh) and EUV observations of the behavior of coronal mass ejections (CMEs) at high temperatures in the lower corona. We also now have coronagraph observations from space with which to make identiications of the related phenomena. This paper reviews theories and observations of CMEs in this new context.

Prediction of concrete performance at high temperatures is of great importance, in particular for safety evaluation of concrete structures in fires in tunnels and high buildings or in thermal hazard situations like hypothetical core disruptive nuclear accidents. High temperatures induce strong physical and chemical changes in the micro-structure of concrete that affect its mechanical behaviour....

One of the goals of the PARASITICS project was the evaluation of decisive physical models in the high temperature range (300 K – 700 K) by comparison between simulation and electrical measurements of suitable test structures. Various van der Pauw devices were examined to test the microscopic-based mobility model of Schenk [1]. In order to make the comparison complete, calculated Hall factors as...

"Among elastomers commercially available, several are reasonably stable for prolonged periods at temperatures above 200•C (392•F); but at such temperatures, their strength characteristics are inadequate for many present day applications." This statement by Thor Smith in 1962 is just as true is 1980, pointing out that the polymer industry, if not mature, is certainly on a broad plateau. The inte...

Fluorescence, Delayed Fluorescence, Photosystem I The changes in the fluorescence and delayed fluorescence intensity of spinach leaf as affected by temperature were studied. It was observed that the delayed fluorescence showed a maximum at about 45 °C whereas the fluorescence maximum was at about 55 °C. An examination of the emission spectra of delayed fluorescence at different temperatures sho...

Ultrasonic attenuation due to phonon–phonon interaction and thermoelastic loss was evaluated in VIII group transition metal Pt in a wide temperature range (100 K to 1500 K) for longitudinal and shear waves along 〈100〉, 〈110〉 and 〈111〉 directions and for shear waves polarised along different directions. Electrostatic and Born–Mayer potentials were used to obtain second and third order elastic co...

High P–T studies of molecular N2O4 using Raman, synchrotron infrared, and X-ray diffraction measurements reveal several new phenomena. Significant changes in the vibrational spectra indicate a phase transition at about 12 GPa. The X-ray diffraction measurements show that the material remains cubic through the transition. We ascribe the transition to a change in the molecular geometry of N2O4 wi...

Fasciolosis is a cosmopolitan parasitic disease with considerable economic and public health importance. Fasciola hepaticais the major cause of fasciolosis in man and domestic animals. Although remarkable research works have been done around the optimum temperature and time required for miracidial development, little is known aboutthe exact susceptibility of Fasciola hepaticaeggs to high temper...