Analysis of metallographic structure and hardness of aluminum alloy 3L59 from the structure of vulcanization equipment

The use of aluminum and special alloys of aluminum in the construction of large installations as is the case of vulcanization equipment, cause a substantial reduction in their weight, while increasing the useful capacity used in the joint process. Metallic structure of vulcanization equipment is made of aluminum alloy 3L59, and after a period of use it was found a deterioration of the quality of joints caused by the modification of the properties of the metallic structure from 3L59. The modification of the properties of the metallic structure is determined by the presence of heat in the vulcanization process and in this regard it has been made an analyze of modifications of metallographic structure and hardness which occur in aluminum alloy 3L59

Analysis of metallographic structure and hardness of aluminum alloy 3L59 from the structure of vulcanization equipment

The use of aluminum and special alloys of aluminum in the construction of large installations as is the case of vulcanization equipment, cause a substantial reduction in their weight, while increasing the useful capacity used in the joint process. Metallic structure of vulcanization equipment is made of aluminum alloy 3L59, and after a period of use it was found a deterioration of the quality of joints caused by the modification of the properties of the metallic structure from 3L59. The modification of the properties of the metallic structure is determined by the presence of heat in the vulcanization process and in this regard it has been made an analyze of modifications of metallographic structure and hardness which occur in aluminum alloy 3L59

Environmental protection through nuclear energy

Environmental protection through implementation of green energies is progressively becoming a daily reality. Numerous sources of green energy were introduced in recent years. Although this process initially started with difficulties, it finally resulted in an acceleration and implementation of new green energy technologies. Nonetheless, new major obstacles are emerging. The most worldwide difficult obstacle encountered, especially for wind and photovoltaic electric power plants, is the not regular and predictable green energy production. This study proposes solutions designed to solve this unpleasant aspect of irregular production of green energy. The basic idea refers to the construction of specially designed nuclear power plants acting as energy buffers. Nuclear power plants, indeed, may behave as proper energy buffers able to work to a minimum capacity when the green energy (i.e., wind power or PV) is steadily produced (namely, when the energy generated by the turbines or PV panels is at full constant capacity) but that can also run at progressively increased capacities when the wind or solar energy production reduces or stops. The work get two major contributions: 1-propose to the achievement of an energy buffer using nuclear power plants (for the moment on nuclear fission); 2-shows some theoretical aspects important needed to carry out the reaction of the fusion

Controlling the pests with the help of plants in organic vineyards

The capability of plants of increasing the ecosystem resistance to pests and invasive species is a well-known ecosystem service. However, monocultures (including vineyards) do not exploit the potential of plant diversity. The aims of this research are to develop new viticultural systems based on increased plant diversity within (e.g., cover crops) and/or around (e.g., hedges, vegetation spots, edgings) vineyards by planting selected plant species for the control of arthropods, soil-borne pests (oomycetes, fungi, nematodes), and foliar pathogens. In order to control pests, plants species can either i) repel arthropod pests, ii) attract arthropod pests to a trap crop or iii) attract and/or conserve beneficials. An extensive systematic literature was performed to identify plant species suitable for repelling or attracting target pests - Lobesia botrana Den & Schiff or conserving and promoting beneficials (including parasitoids, such as ichneumonids, braconids and general predators, such as carabid beetles, ladybirds, hoverflies and spiders). Here we present the results of this literature review

Sterol Carrier Protein-2 Directly Interacts with Caveolin-1 in Vitro and in Vivo

HDL-mediated reverse-cholesterol transport as well as phosphoinositide signaling are mediated through plasma membrane microdomains termed caveolae/lipid rafts. However, relatively little is known regarding mechanism(s) whereby these lipids traffic to or are targeted to caveolae/lipid rafts. Since sterol carrier protein-2 (SCP-2) binds both cholesterol and phosphatidylinositol, the possibility that SCP-2 might interact with caveolin-1 and caveolae was examined. Double immunolabeling and laser scanning fluorescence microscopy showed that a small but significant portion of SCP-2 colocalized with caveolin-1 primarily at the plasma membrane of L-cells and more so within intracellular punctuate structures in hepatoma cells. In SCP-2 overexpressing L-cells, SCP-2 was detected in close proximity to caveolin, 48 ± 4 Å, as determined by fluorescence resonance energy transfer (FRET) and immunogold electron microscopy. Cell fractionation of SCP-2 overexpressing L-cells and Western blotting detected SCP-2 in purified plasma membranes, especially in caveolae/ lipid rafts as compared to the nonraft fraction. SCP-2 and caveolin-1 were coimmunoprecipitated from cell lysates by anti-caveolin-1 and anti-SCP-2. Finally, a yeast two-hybrid assay demonstrated that SCP-2 directly interacts with caveolin-1 in vivo. These interactions of SCP-2 with caveolin-1 were specific since a functionally related protein, phosphatidyinositol transfer protein (PITP), colocalized much less well with caveolin-1, was not in close proximity to caveolin-1 (i.e., \u3e120 Å), and was not coimmunoprecipitated by anti-caveolin-1 from cell lysates. In summary, it was shown for the first time that SCP-2 (but not PITP) selectively interacted with caveolin-1, both within the cytoplasm and at the plasma membrane. These data contribute significantly to our understanding of the role of SCP-2 in cholesterol and phosphatidylinositol targeted from intracellular sites of synthesis in the endoplasmic reticulum to caveolae/lipid rafts at the cell surface plasma membrane

Dynamically enhancing qubit-oscillator interactions with anti-squeezing

The interaction strength of an oscillator to a qubit grows with the oscillator's vacuum field fluctuations. The well known degenerate parametric oscillator has revived interest in the regime of strongly detuned squeezing, where its eigenstates are squeezed Fock states. Owing to these amplified field fluctuations, it was recently proposed that squeezing this oscillator would dynamically boost its coupling to a qubit. In a superconducting circuit experiment, we observe a two-fold increase in the dispersive interaction between a qubit and an oscillator at 5.5 dB of squeezing, demonstrating in-situ dynamical control of qubit-oscillator interactions. This work initiates the experimental coupling of oscillators of squeezed photons to qubits, and cautiously motivates their dissemination in experimental platforms seeking enhanced interactions.Comment: 21 pages, 15 figure