this paper presents a relatively new management model for the optimal design and operation of irrigation water pumping systems. the model makes use of the newly introduced particle swarm optimization algorithm. a two step optimization model is developed and solved with the particle swarm optimization method. the model first carries out an exhaustive enumeration search for all feasible sets of p...

homocysteine thiolactone was demonstrated to inhibit the growth of 10–12-day-old chicken embryo cardiac tissue explants at 7 × 10−9 −1 × 10−3 m concentrations in a dose-dependent manner. the maximal cardiotoxic effect of homocysteine thiolactone was detected at 1 × 10−3 m, which corresponds to severe hyperhomocysteinemia. the results of experiments on culturing of cardiac tissue explants in the...

The present work consists of developing a new hybrid FL-INC optimization algorithm for the solar water pumping system (SWPS) through SEPIC converter whose objective is to improve these performances. This technique based on combination fuzzy logic artificial intelligence and incremental conductance (INC) technique. Indeed, introduction INC allows extraction maximum amount power an improvement in...

We experimentally show that exchange magnons can be detected by using a combination of spin pumping and the inverse spin-Hall effect proving its wavelength integrating capability down to the submicrometer scale. The magnons were injected in a ferrite yttrium iron garnet film by parametric pumping and the inverse spin-Hall effect voltage was detected in an attached Pt layer. The role of the dens...

At the start, 1.85K operation seemed reasonable and an all-helium four solution the only one possible. It is still evident that for 1.85K operation, an allhelium four cycle is optimum, not because of lowest capital cost, but due to less pumping power. In a hybrid helium three-helium four refrigerator, the specific power for pumping helium-three is 4.0026 I 3.016 times that of pumping helium four.

One can prove X1 is not regular using the pumping lemma. One can prove X2 is not regular either by using the pumping lemma (a version with bounds on the prefix) or by contradiction: if X2 is regular than X2 ∩ a∗b∗ = X1 is regular. One cannot prove X3 non-regular with the pumping theorem directly; however one can prove its regular by contradiction: if X3 is regular than X3 = X2 is regular. We wi...

Background: Cytochrome c oxidase reduces O2 coupled with proton-pumping. Results: A newly developed time-resolved infrared system reveals transient conformational changes in the proton-pumping pathway upon CO-binding to CuB in the O2 reduction site. Conclusion: CuB promotes proton collection and effective blockage of back-leak of pumping-protons. Significance: These critical findings in Bioener...

4He (2 3Si) metastable atoms are optically pumped with intensity modulated light The use of a single mode diode-pumped LNA laser as the pumping source, allows the study of resonance signals predicted'by the optical pumping theory but not yet observed Resonances are detected on the transmitted pumping beam at the modulation frequency and its harmonics Application of this method to high sensitivi...

The impact of ground water pumping on nearby streams is often estimated using analytic models of the interconnected stream-aquifer system. A common assumption of these models is that the pumped aquifer is underlain by an impermeable formation. A new semianalytic solution for drawdown and stream depletion has been developed that does not require this assumption. This solution shows that pumping-...

Public-supply wells with long screens in alluvial aquifers can produce waters of differing quality from different depths. Seasonal changes in quality are linked to seasonal changes in pumping rates that influence the distribution of flow into the well screens under pumping conditions and the magnitude and direction of intraborehole flow within the wells under ambient conditions. Groundwater flo...