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Coherent effects of ultra-relativistic particles in crystals is an area of science under development. DYNECHARM + + is a toolkit for the simulation of coherent interactions between high-energy charged particles and complex crystal structures. The particle trajectory in a crystal is computed through numerical integration of the equation of motion. The code was revised and improved in order to exploit parallelization on multi-cores and vectorization of single instructions on multiple data. An Intel Xeon Phi card was adopted for the performance measurements. The computation time was proved to scale linearly as a function of the number of physical and virtual cores. By enabling the auto-vectorization flag of the compiler a three time speedup was obtained. The performances of the card were compared to the Dual Xeon ones.

Electrochemical measurement and surface analysis methods were employed to investigate the Microbiologically Influenced Corrosion (MIC) influenced by Thiobacillus ferrooxidans biofilm. Electrochemical impedance spectroscopy (EIS) results indicated that the impedance value of steel A3 after 21 days of immersion in sterile solution was much higher than that of T.f solution. Atomic Force Microscopy (AFM) results showed the adsorption state of the microorganism on the metal surface for 7 days of exposure in T.f solution. The morphologies of the surface film were analyzed with the Scanning Electron Microscope (SEM), which showed the changes with exposure time of the film on the metal surface. The special morphology and the heterogeneity of Thiobacillus ferrooxidans biofilm induced the localized corrosion of steel A3. After 21 days of exposure, general corrosion occurred in the sterile solution, while localized corrosion was detected under the effect of Thiobacillus ferrooxidans.

The research into series connection of dc–dc converters has been concentrating more recently on creating a high voltage low current string. However, the interleaving technique of series-connect photovoltaic (PV) module integrated converters (MICs) has not been sufficiently addressed so far. This paper proposes a low cost high performance interleaving technique based on series PV MICs to reduce the output voltage-ripples. With the reduced voltage-ripples, the size and cost of capacitors at grid connected inverters can be reduced. The proposed technique is capable of solving the problem for PV panels with mismatched operating conditions. Each PV panel is able to track its own maximum power point (MPP) which simultaneously delivers the maximum power for the system. The proposed technique is mathematically investigated based on boost (step-up) converters and validated by Simulink/Matlab simulation and experiment results. The MPP tracking (MPPT) algorithm is tested for a PV/battery charging system with satisfactory performances in both steady-state and transient responses with reduced voltage-ripples.

The minimum inhibitory concentration (MIC) of "Camelyn M" active compound obtained from special sort of honey in one of region of Georgia, was determined both by agar and broth dilution methods against some of strains of bacteria and fungy. The antibacterial action of "Camelyn M" was further tested in animal models. "Camelyn M" was seen to possess powerful inhibitory action (0,012-0,150 μg/mL ) against most test bacteria in in vitro studies. In vivo studies showed that the drug offered significant protection (p<0.001) to mice challenged with a virulent bacterium.

"Camelyn M" exhibited potent in vitro activities against fluconazole-resistant strains of Candida albicans, Candida glabrata, Candida tropicalis, Candida parapsilosis and Candida krusei, with MICs at which 90% of isolates were inhibited of 0.012 μg/ml, respectively.

Cooling water is generally contained naturally occurring all living organisms and nutrients present in it are responsible for uncontrolled multiplication of the living organisms. Among them SRB are initiating the pitting on both stainless steel and mild steel metals by producing H₂S & the formation of black sulphides (FeS) shows black shiny look.The spices Desulfomonas & Desulfobacillus are commonly found in recirculating system. SRB take part in the formation & stabilization of Biofilm along with Bacillus and Pseudomonas species. Thus they developed Microbial Induced Corrosion (MIC) on heat exchangers surfaces, which reduces the cross sectional area of heat exchangers thereby reducing efficiency of plant.

Thapsia garganica is an endemic plant which grows spontaneously in Mediterranean basin. It is used by Algerian population for some cases of rhumatism.

In this study we tested the antibacterial activity of acetonic extracts of the leaves and roots of Thapsia garganica on four bacterial strains Escherichia coli, Pseudomonas aeruginosa, Listeria innocua, Staphylococcus aureus for this four concentrations of the extracts were prepared 100mg/ml, 50mg/ml, 25mg/ml and 12.5mg/ml.

Results indicated that acetonic extracts of the leaves have the best antibacterial activity with inhibition zones varying from 6 to 32 mm. Extracts at 100mg/ml were better than the other dilutions. The Gram negative becteria were more sensitive than the Gram positive ones.

MIC results indicated that all the strains have a minimum inhibition concentration higher than 4mg/ml except for Staphylococcus aureus wich showed a MIC of 3.1mg/ml.