Inventors entrepreneurs and high Tech Professionals talk about their visions successes and day to day business to friends. Its. History you know everyone. Sees the mouth of the fish. I was trying to. Get you to africa starts december twelfth w. Hello and welcome to tim origin coming up on this weeks edition. Troubled times for treat bruce is a major source of word but Climate Change could put an end to that research is and now looking for alternative sources of timber. Virtual heart new drugs could soon
be tested on a computer rather than animals or humans scientists are recreating the heart in digital form. And mass exodus what happens when lots of people try to evacuate an area one. Model. Mathematics is still dominated by Ned The Fields Medal which is widely considered the highest accolade for discoveries that now has only been awarded to one woman. Who were a new mary. In Two Thousand And Fourteen but even in ancient times there were outstanding Phenol Mathematicians like Hypatia O
Zinc oxide (ZnO) is emerging as a promising n-type thermoelectric material (TE) for power harvesting due to its high melting point and large Seebeck coefficient. However, the TE performance of ZnO is limited by high thermal conductivity and low carrier mobility. Adding or doping a divalent element such as cadmium oxide (CdO) can lower the thermal conductivity and enhance the carrier concentration of ZnO. In this paper, the thermoelectric transport properties of ZnO-CdO nanocrystalline thin films are investigated by varying the Zn/Cd ratio at temperatures ranging from room temperature (RT) to 423 K. The electrical conductivity, carrier concentration and mobility of ZnO were enhanced by increasing the Cd concentration. The maximum power factor of 2.75 × 10−4 W m−1 K−2 was obtained at 423 K for the Zn/Cd = 1:3 sample. The thermal conductivity was dominated by lattice thermal conductivity in which Umklapp scattering occurs between anharmonic phonons. The thermal conductivity of ZnO
A new thermoelectric device developed by scientists at Penn State University shows great potential for future success in providing cooling solutions for next-generation electronics.