The settlement rate and pore water pressure dissipation are mainly controlled by the permeability of soil. Both laboratory field tests show that is varied during loading consolidation process. It known process accompanied decrease in void ratio which leads to coefficient permeability. importance on time needs be investigated.This paper takes into account change studies its effect characteristic...

introductionmountainous region of tuchal, with a height about 3962 meters above sea level, is located in north of tehran,capital of iran. with regards to population growth, and increasing urbanization, and air pollution issues, it isknown as one of the most important recreational area for health recovery and relaxation among people living intehran. as these spaces are known as public goods with...

LIST OF PRINCIPAL SYMBOLS Ey Hz H h k ^-component of electric field strength, z-component of magnetic field strength. Height of aperture. Height of source slot above guiding surface. Phase constant for free space. kx = Decay constant of surface wave. V(h) = Voltage across slot at height h. x,y,z = Rectangular co-ordinates. Phase-change coefficient in ^-direction. Phase-change coefficient of sur...

A frequently proposed method of reducing unsolicited bulk email (“spam”) is for senders to pay for each email they send. Proof-ofwork schemes avoid charging real money by requiring senders to demonstrate that they have expended processing time in solving a cryptographic puzzle. We attempt to determine how difficult that puzzle should be so as to be effective in preventing spam. We analyse this ...

Blockchain-based solutions are one of the major areas of research for institutions, particularly in the financial and the government sectors. There is little disagreement that backbone technologies currently used in these sectors are outdated and need an overhaul to conform to the needs of the times. Distributed or decentralized ledgers in the form of blockchains are one of themost discussed po...

We suggest in Fig. 5 that arginase is common to the two cycles. Although the remaining steps of the two cycles are shown separately in this figure, there seems to be no objection to the assumption that the enzymes catalysing the remaining steps are common to the two cycles, provided that in physiological conditions these enzymes, as is the case with arginase, are likely to be far from the point...