Mammalian peripheral cold thermoreceptors respond to cooling of their sensory endings with an increase in firing rate and modification of their discharge pattern. We recently showed that cultured trigeminal cold-sensitive (CS) neurons express a prominent hyperpolarization-activated current (I(h)), mainly carried by HCN1 channels, supporting subthreshold resonance in the soma without participati...

Abstract The barrel is one of the important parts artillery. At same time, when firing, bore needs to withstand high temperature and pressure powder gas as well impact friction projectile, different damage forms such cracks, wear dechromium on will appear. However, main reasons for error firing accuracy, it can even cause other security risks. In this paper, common formation force tube body dur...

Abstract Artillery is known as the “God of War”. When ballistic performance barrel reduced to allowable value specified by index due erosion and wear, life terminated, artillery equipment completely loses its combat effectiveness. The wear involves many factors such temperature, mechanics, chemistry. In this paper, based on theory internal ballistics heat conduction, temperature gradient distri...

The conventional ceramic route was utilized to prepare a hard magnetic powder (M-type strontium ferrite, SrFe12O19). The stoichiometric mixture of iron oxide and strontium carbonate were calcined at 1000C and then fired at various temperatures. The influence of various reaction parameters such as mixing ratio, calcination temperature, firing temperature and firing time on the magnetic behaviors...

variety of energy–ecology optimizing means that optimum result of fuel combustion is focused not only on the direct efficiency of its usage but also on minimum environmental damage. best possible fuel combustion connected with controlled level of chemical underburn is considered to be one of the simpliest, cheapest and the most effective methods of optimizing. it is essential to notice that the...