Is this the solution we're looking for?

Software (digital rights management) DRM solutions have beenavailable for well over two decades and have always been aboutpreventing, inhibiting, restricting and controlling.     

National programs for wind energy utilization in Egypt

This paper presents Energy policy and describes the framework of Energy utilization, in Egypt, with special emphasis on wind Energy plans and programs to illustrate the role wind Energy can play in the sustainable Energy development programs in EgyptA Master plan that targets 600 MW by the year 2005 for grid connection is currently worked out, based on 200–300 kw turbine size capacity.National institutions concerned are taking part in master planning of wind Energy utilization, New and Renewable Energy Authority (NREA) under the Ministry of Electricity and Energy in Egypt has the responsibility for promotion of technologies and applicationsThe paper also illustrate demonstration program and projects performance results and present hands on experience gained through the last 5 yearsMoreover the paper presents the National five year plan objectives that calls for 70 MW wind farms at the area of the Red Sea, based on national investment together with 150 MW wind farms in the same area based on private investment, which is a change in the laws due to convection of economical reforming in Egypt. Fuel saving and environmental impact assessment together with economical analysis is presented for the national five year plan 1992/1997.     

Study of Taza’s Miocene marl applications in heavy clay industry

Bulletin of Engineering Geology and the Environment - The Miocene marl (MM) or calcareous clays in the southern Rif groove is one of the geological resources located in the region of Taza...     

Novel bioactive copper and nickel polymeric complexes: Synthesis,characterization, antimicrobial activity,and DFT calculations

Polymeric complexes, especially metal-containing polymers, possess aggregated medical applications, especially as antibacterial and antifungal agents. This work describes a facile procedure for producing a series of novel copper and nickel complexes of poly(2-hydroxyphenyl methacrylamide) and poly(2-carboxyphenyl methacrylamide). The polymeric ligands were synthesized through a multistep procedure. Firstly, 4-formylphenyl methacrylate was constructed by acylating 4-hydroxybenzaldehyde with methacryloyl chloride. Then, polymerization of the as-prepared monomer to obtain poly(4-formylphenyl methacrylate) using benzoyl peroxide as an initiator. Thirdly, the polymeric ligands PL1 and PL2 were achieved via exchange reactions between poly(4-formylphenyl methacrylate) and o-aminophenol and anthranilic acid, respectively. Consequently, the two ligands were reacted with copper and nickel acetates to afford four target complexes (Cu-PL1, Ni-PL1, Cu-PL2, and Ni-PL2). By FT-IR, ¹HNMR, UV-visible, and TGA analyses, the structures of PL1, PL2, and their complexes were investigated. Furthermore, the geometries of PL1, PL2, and their complexes were reported through a molecular modeling to investigate some interesting parameters such as the bond length, bond angle, charge on the atoms, the HOMO and LUMO using the Material Studio program. The calculation results illustrated that octahedral geometries are proposed for the synthesized metal complexes. The reported antimicrobial efficiency showed a strong potency for most synthesized compounds against the selected microbes, especially compounds Cu-PL1 and Cu-PL2 which are more effective than the standard against Candida albicans.     

Synthesis of a 188Re-HEDP complex using carrier-free 188Re and a study of its stability and biological distribution

Labeling of disodium dihydrogen 1-hydroxyethane-1,1-diphosphonate (HEDP) with ¹⁸⁸Re was studied. Stannous chloride was used as a reducing agent for the reduction of ¹⁸⁸ReO₄⁻. The dependence of the yield of ¹⁸⁸Re-HEDP complex upon the HEDP concentration, tin(II) content, reaction time, amount of antioxidant, pH, reaction temperature, and presence of carrier was examined. The optimum conditions ensuring high labeling yield of ¹⁸⁸Re-HEDP complex (91.0% with carrier-free Re and 96.5% with carrier-added Re) are as follows: 15 mg of HEDP, 2 mg of Sn(II), 4 mg of ascorbic acid, pH 1.2, 100°C, 10 min. The amount of the carrier added is 200 μg of KReO₄. The ¹⁸⁸Re-HEDP complex prepared at 100°C is more stable than that prepared at 30°C, and the carrier-added ¹⁸⁸Re-HEDP complex is more stable than the no-carrier-added complex.     

Design approach of the ARIES-AT power core and vacuum vessel cost assessment

The complexity of fusion power plants require the integration of many diverse and important system requirements to achieve a design approach that is viewed as a commercially viable electric plant. The ARIES-AT power core design builds upon a history of fusion power core designs that evolve along with physics and engineering advances. The baseline design point is optimized for maximum performance and minimum capital cost based upon the ARIES systems code results, along with physics and engineering analyses. The ARIES-AT power core is designed to be quick and easily maintainable to achieve high plant availability. A key element to achieve the high availability is the integration of the core elements with the design of the vacuum vessel. The vacuum vessel design is developed in more detail to assure the key assembly and maintenance features could be realized at an affordable cost.     

DialogDesigner: tools support for dialogue model design and evaluation

DialogDesigner is an integrated design and development environment that supports dialogue designers in creating an electronic dialogue model, writing dialogue snippets, running and analysing simulation sessions, getting graphical views of the model, making automatic evaluation regarding dialogue model well-formedness, compiling the model into run-time code, and extracting different presentations. DialogDesigner has been used for research purposes as well as in commercial projects. Its primary focus is on providing support for the development process. We explain underlying ideas, illustrate the functionality of DialogDesigner and discuss its strengths.     

Formation and properties of C-S-H–PEG nano-structures

Results of an investigation of the intercalation potential of polyethylene glycol (PEG) with synthetic and pre-treated C-S-H are reported. The partial intercalation of PEG molecules in the interlayer of C-S-H is discussed. The effective and strong interaction of PEG molecules with the C-S-H surface was shown using XRD, ¹³C CP and ²⁹Si MAS NMR, and DTGA. The position and character of the 002 low angle XRD peak of C-S-H are affected by drying procedures and concomitant chemical treatment preceding intercalation and the reaction temperature. Recovery of the initial 002 position after severe drying and intercalation with distilled water or PEG is incomplete but is accompanied by an increase in intensity. It is inferred that the stability of C-S-H binders in concrete can be impacted by a variation in nanostructure dependent on curing temperature and use of chemical admixtures.     

Hydrogenation of aromatics on modified platinum–alumina catalysts

Using a pulsed-micro catalytic reactor benzene and toluene were hydrogenated to cyclohexane and methylcyclohexane, respectively, in a temperature range 50–250°C. Modified catalysts containing 0.35% Pt–Al₂O₃ were investigated. Modification was carried out via (a) introducing a second metal (Ir, Rh, Re and U) and (b) fluorination and chlorination with different halogen contents of 1,3 and 6 wt%. The study revealed that (1) all catalysts show good catalytic activities in the temperature range 125–150°C, except Rh catalyst which is very active even at room temperature, (2) introducing either Ir or Re enhances Pt activity, while U inhibits this activity, (3) halogenation promotes the catalyst activity and (4) alkyl-substitution enhanced aromatic ring hydrogenation.