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The chapter considers the significance of the oil and gas industry for the Russian economy. The authors analyze the current state of the oil and gas industry, their specific weight in the structure of Russian GDP, and tax revenues from this industry to the Russian budget that was estimated. We give scenario analysis that considers the problems that the Russian economy may face because of the sanctions, the price fluctuations at the commodity market, and the crisis phenomena in the world economy. The chapter points out that localization of technology production and development of technologies for offshore oil and gas production in the Arctic zone may become an incentive to further ensure import substitution for Russia. At present, the experience of Arctic defense enterprises in the production of equipment for oil and gas production and processing is becoming increasingly popular. The chapter elaborates the most significant examples of the creation of new industries in the Arctic zone, the prospects of seismic exploration on the Arctic shelf, and that localization of production capacities and service bases will allow obtaining a multiplicative incentive for a qualitatively new industrial and infrastructure development of the northern territories. Also, we provide an assessment of the development of liquefied natural gas (LNG) industry, which makes economically attractive use of natural gas on a regional level as LNG opens the way to fuel high-power needs and to long-distance transport.

The influence of a newly synthesised organic compound on the inhibition of corrosion of arsenical aluminium brass in a NaCl solution has been investigated using weight loss measurements, potentiodynamic polarization studies and impedance measurements. Different corrosion kinetic parameters obtained from polarisation studies reveal that the inhibition of corrosion of arsenical aluminium brass in NaCl is under mixed control. UV‐reflectance, X‐ray diffraction and scanning electron microscopic studies have also been carried out to understand the mechanism of inhibition of corrosion, and also the morphological changes on the surface of the alloy. The adsorption of this compound on the metal surface from 3.5% NaCl solution is found to obey Temkin’s adsorption isotherm.

The potential measurements in NaCl solutions of varying concentrations carried out separately on galvanised steel and aluminised steel, each coupled galvanically with mild steel, have shown continuous rise of potential with increase in the concentration of NaCl in both the cases. For the aluminised steel‐mild steel couple, the protective potential of −760 mV is reached close to the NaCl concentration of 2%, while the potential in the case of galvanised steel‐mild steel couple has always been above the protective potential, right from the beginning, within the concentration range of NaCl (upto 3%) studied. The current and potential measurements in 0.1% NaCl solution have shown that the resistance of the surface film on aluminised steel grows from 1.037 ×103 ohm to 5.500×103 ohm within the test duration ranging from 20 hours to 100 hours and that on the galvanised steel increases from 0.90×103 ohm to 2.307×103 ohm within the test span ranging from 30 hours to 100 hours. The low current found to have been associated with the aluminised steel‐mild steel couple is not sufficient to bring the potential at the required protective level for the protection, while about 4 times higher current measured in the galvanised‐mild steel couple helps it in attaining the protective potential.

The purpose of this paper is to investigate the influence of manganese addition on sacrificial anode characteristics of electrolytic magnesium.

Different contents of manganese were added to magnesium. Anode characteristics were evaluated and correlated to added manganese.

The performance of an anode depends strongly on the manganese content. An optimum value for the manganese to be added was identified. The impurity levels to obtain efficiencies above 50 per cent also are reported.

This paper highlights the properties of magnesium‐manganese binary alloys for use as sacrificial anodes in cathodic protection.

The purpose of this paper is to carry out laboratory studies of the inhibition effect of tyrosine (Tyr) on the corrosion of low chromium alloy steel (ASTM A213 grade T22) in 7 wt percent sulfamic acid solutions.

The corrosion inhibitive effect of Tyr was investigated using electrochemical impedance spectroscopy (EIS) and the new technique electrochemical frequency modulation (EFM).

It was found that the inhibition efficiency increased with increasing inhibitor concentration, while a decrease was detected with the rise of temperature and stirring speed. The corrosion inhibition is due to physical adsorption of Tyr on the steel surface. Adsorption of the inhibitor molecule, onto the steel surface follows the Temkin's adsorption isotherm.

The obtained results from both methods (EIS and EFM) at different experimental conditions were in high agreement and almost similar. This is an indication that the EFM technique can be used efficiently for monitoring the corrosion inhibition under the studied conditions.

The purpose of this paper is to investigate the effect of water content of assembly solution on the adsorption behavior and corrosion protection performance of 1–tetradecylphosphonic acid [TDPA, CH3(CH2)13P(O)(OH)2] films on aluminum alloy surface in NaCl solution.

Self-assembled monolayers (SAMs) of TDPA were prepared on the 2024 aluminum alloy surface in TDPA containing ethanol-water solutions with different water contents. The adsorption behavior of the SAMs on the alloy surface and their corrosion protection properties in a 3.5 per cent NaCl solution were characterized by potentiodynamic polarization scan, Fourier-transformed infrared spectroscopy (FTIR) and atomic force microscopy (AFM).

The FTIR results demonstrated that the TDPA molecules were successfully adsorbed on the 2024 aluminum alloy surface, and the density of the SAMs increased with the increasing water content in the assembly solution. The electrochemical studies and corrosion morphologies observed by AFM showed that the optimal condition is 2 h of assembling in solution B or solution C. The corrosion inhibition efficiency values follow the order solution B ≈ solution C > solution A at the first 2 h assembly and solution B > solution C > solution A while the assembly time exceeded 2 h. The dependence of corrosion inhibition performance of the SAM on the water content and on the assembly time is related to the balancing of competition between TDPA adsorption and dissolution of the alloy oxidation film.

It illustrates potential application prospects of TDPA for surface treatment of aluminum alloy. Via the comparison with our previous work, this paper provides useful information regarding the difference of corrosion inhibition properties of organic phosphonic acid for aluminum alloy between in neutral and in acid solution.

An experimental investigation for developing structure-property correlations of hot-rolled E410 steels with different carbon contents, i.e. 0.04wt.%C and 0.17wt.%C metal active gas (MAG) and cold metal transfer (CMT)-MAG weldments was undertaken.

Mechanical properties and microstructure of MAG and CMT-MAG weldments of two E410 steels with varying content of carbon were compared using standardized mechanical testing procedures, and conventional microscopy.

0.04wt.%C steel had strained ferritic and cementite sub-structures in blocky shape and large dislocation density, while 0.17wt.%C steel consisted of pearlite and polygonal ductile ferrite. This effected yield strength (YS), and microhardness being larger in 0.04wt.%C steel, %elongation being larger in 0.17wt.%C steel. Weldments of both E410 steels obtained with CMT-MAG performed better than MAG in terms of YS, ultimate tensile strength (UTS), %elongation, and toughness. It was due to low heat input of CMT-MAG that resulted in refinement of weld metal, and subzones of heat affected zone (HAZ).

A substantial improvement in YS (∼9%), %elongation (∼38%), and room temperature impact toughness (∼29%) of 0.04wt.%C E410 steel is achieved with CMT-MAG over MAG welding. Almost ∼10, ∼12.5, and ∼16% increment in YS, %elongation, and toughness of 0.17wt.%C E410 steel is observed with CMT-MAG. Relatively low heat input of CMT-MAG leads to development of fine Widmanstätten and acicular ferrite in weld metal and microstructural refinement in HAZ subzones with nearly similar characteristics of base metal.

By comparing urban regeneration mechanisms implemented in two declining urban centers, this paper attempts to examine the usefulness of hybrid planning strategies over a more traditional statutory land-use plan, considering their respective effectiveness for introducing urban change. The paper compares the planning and implementation methods used to generate urban revitalization in Lev Ha-Ir (City Heart) in Tel Aviv and Hadar in Haifa. In reviewing these two case studies, the paper considers the role of the residents in each area and various bottom-up local initiatives. The paper examines how these initiatives were met and utilized by the planners and by the municipality, and how they acheived the goal of urban revitalization. The approch towards and the use of local assetes of each locality is considered, as well as the way they were implemented in the revitelazing plan. The paper draws attention to official enterprises and planning mechanisms that utilize and even encourage unofficial residents' actions and activities. The findings from the two case studies suggest the importance of mediating between bottom-up initiatives of individual residents, community organizations, and local institutions, and top-down institutional municipal systems, as early in the process as possible, in order to make both the statutory land-use plan and the hybrid planning strategies more effective.

This study aims to analyze simplified methods for modelling the flow through perforated elements (i.e. porous baffle interface and porous region), searching for a faster and easier way to simulate these components. The numerical simulations refer to a muffler geometry available in literature as a case study.

The installation of scrubber onboard ships to satisfy the International Maritime Organization emissions regulations is a reliable and efficient solution. However, scrubbers have considerable dimensions, interfering with other exhaust line components. Therefore, scrubber installation in the funnels requires integration with other elements, for example, silencers. Perforated pipes and plates represent the main elements of scrubber and silencers. The study of their layout is, therefore, necessary to reduce emissions and noise. Numerical simulations allow evaluating the efficiency of integrated components.

The study highlights that velocity and pressure predicted by the simplified models have a strong correlation with the resistance coefficients. Even though the simplified models do not accurately reproduce the flow through the holes, the use of such models allows a fast and easy comparison between concurrent muffler geometries, giving aid in the early design phases.

The lack of general guidelines and comparisons in the literature between different modelling strategies of perforated elements supports the novelty of the present work and its impact on design applications. Study the flow inside scrubbers and mufflers is fundamental to evaluate their performances. Therefore, having a simple numerical method is suited for industrial applications during the design process.