Blet is a puzzle. One starts with an even number of coins, laid out in a circle. At first, the coins are laid out with heads and tails alternating (HTHTHT. . .HT). Each turn, you are allowed to take three consecutive coins that show tails-heads-tails and flip them over, getting heads-tails-heads. This increases the total number of heads by one. You may do the opposite, flipping a heads-tails-he...

This paper presents finite element analysis (FEA) of a coated and uncoated cylinder heads of a diesel engine to examine the distribution of temperature and stress. A thermal barrier coating system was applied on the combustion chamber of the cylinder heads, consists of two-layer systems: a ceramic top coat (TC), made of yttria stabilized zirconia (YSZ), ZrO2-8%Y2O3 and also a metallic bond coat...

this research compares the psychological well-being of female heads of household and woman in male-headed in city of tehran. it was a descriptive cross-sectional study. statistical population was consisted of female heads of family under coverage of imam khomeini aid committee and woman in male-headed households in city of tehran in 2012. the sample consisted of 280 subjects including 140 femal...

Human trophy heads from the Wari site of Conchopata (AD 600-1000) are examined to evaluate if recently deceased persons or old corpses were used to make trophy heads and determine if the modifications are standardized. Similarly styled trophy heads may suggest state oversight that ensured uniform modifications, while different styles may suggest that various factions or kin groups prepared them...

background and objective: one way to promote education quality is to evaluate faculty activities by students, departmental heads, and the dean. the degree of correspondence between students' and departmental heads' evaluation shows how honest they are in their assessment. the current paper intends to find the truth.     materials and methods : questionnaires were used to conduct the s...

The rotational motion of crossbridges, formed when myosin heads bind to actin, is an essential element of most molecular models of muscle contraction. To obtain direct information about this molecular motion, we have performed saturation transfer EPR experiments in which spin labels were selectively and rigidly attached to myosin heads in purified myosin and in glycerinated myofibrils. In synth...

R544 Current Biology 26, R543–R576, July be repaired, replaced and renewed, and in principle this renewal could go on indefi nitely. And at least in the freshwater polyp Hydra, there don’t seem to be any signs of senescence. But from an evolutionary perspective, things look different. Typically, many organisms die before they reach old age, due to circumstances beyond their control, like being ...

Typical Specifications (Dual Channel) Parameters / Model # SRF-24120910-D1 SRF-35121010-D1 SRF-77121210-D1 RF frequency 24.150 GHz 35.500 GHz 76.500 GHz Transmitter output power +10 dBm (typical) +10 dBm (typical) +10 dBm (typical) Receiver conversion loss 9 dB (typical) 10 dB (typical) 12 dB (typical) IF bandwidth DC to 100 MHz (minimum) DC to 100 MHz (minimum) DC to 100 MHz (minimum) I/Q Chan...

We discuss CharToon, an interactive system to design and animate 2D cartoon talking heads. We give illustrations of the expressive and artistic effects which can be produced. It has been used with success by different types of users.