@article { author = {Bozorgian, Alireza}, title = {Investigation of the history of formation of gas hydrates}, journal = {Journal of Engineering in Industrial Research}, volume = {1}, number = {1}, pages = {1-18}, year = {2020}, publisher = {Sami Publishing Company (SPC)}, issn = {2783-3747}, eissn = {2717-4050}, doi = {10.22034/jeires.2020.260854.1000}, abstract = {In gas transmission lines, there are usually "four main factors that are necessary to create hydration. As it is always necessary to design the pipeline to transfer at high pressure (high density), also pipelines are exposed to ambient temperature and usually" with They face low temperatures. On the other hand, in the presence of water vapor (almost all-natural gases carry some amount of water vapor with them) and, more importantly, the presence of hydrocarbons, hydrate crystals are formed in addition to partial or complete blockage of gas transmission lines. Causes fouling of distillation tower trays, nozzles, valves and heat exchangers, wear on turbochargers, etc. After the discovery of gas hydrates as the cause of blockage of gas transmission pipelines by Hammer Schmidt in 1934. The collection of thermodynamic information increased the formation of hydrates, with more carbon dioxide being produced and released into the atmosphere by burning fossil fuels in homes and cars and burning waste gases in refineries and petrochemical industries, as well as in thermal power plants. It is one of the most important pollutants in the greenhouse effect, which causes global warming and gradual increase in temperature. Isolation and storage of greenhouse gases is one of the most fundamental environmental issues today.}, keywords = {hydrate,pipelines,Water,Gas,Carbon dioxide}, url = {https://www.jeires.com/article_120226.html}, eprint = {https://www.jeires.com/article_120226_77ab20c716c6ba5420c4861d9b676b5c.pdf} } @article { author = {Rebout, Frank}, title = {CFA Performance Evaluation: a Comprehensive Structural Equation Modeling}, journal = {Journal of Engineering in Industrial Research}, volume = {1}, number = {1}, pages = {19-37}, year = {2020}, publisher = {Sami Publishing Company (SPC)}, issn = {2783-3747}, eissn = {2717-4050}, doi = {10.22034/jeires.2020.262514.1006}, abstract = {In this article, the effect of seven factors including human resources, management and leadership, external processes, internal processes, production and procurement, economic issues and finally marketing on the financial performance of the Persian Gulf petrochemical companies were investigated. In order to evaluate the appropriateness of the questionnaire with the objectives of the research, the method of confirmatory factor analysis (CFA) had been used. Based on the results, all corresponding criteria as Cronbach's alpha coefficient, combined reliability coefficient (CR), average extracted variance (AVE) and significance of factor loads between questions and latent variables show divergent validity and correspondent of the questionnaire. Meanwhile, due to the lack of normal distribution of data, non-parametric analysis had been conducted. Utilizing of corresponding test approved the main hypothesis of the research regarding the effectiveness of all under investigation parameters. On the other hand according to Friedman ranking test, the parameters named internal processes and external environment of the organization represented the highest and the lowest rank of impact on the financial performance of the organizations under review, respectively.}, keywords = {CFA(confirmatory factor analysis),Friedman Test,financial units,petrochemical companies,PLS}, url = {https://www.jeires.com/article_120575.html}, eprint = {https://www.jeires.com/article_120575_94673ed0e505b2ffd6bd7aebc8784eb8.pdf} } @article { author = {Lo Han, Kim}, title = {Investigation of trivalent cream plating problems}, journal = {Journal of Engineering in Industrial Research}, volume = {1}, number = {1}, pages = {38-50}, year = {2020}, publisher = {Sami Publishing Company (SPC)}, issn = {2783-3747}, eissn = {2717-4050}, doi = {10.22034/jeires.2020.262521.1007}, abstract = {Graphite anodes are used in cream plating of trivial baths. During plating, the trivalent cream is oxidized to the hexavalent cream on the anodes and as a result the cathodic efficiency is reduced, so in order to prevent oxidation, the solution around the anode is separated from the solution around the cathode with a ceramic wall. Another way to prevent oxidation of trivalent cream is to add carboxylic acid. Carboxylic acid reduces hexavalent cream to trivalent cream. Zabotin and Kozlovsky have shown that in a sealed container under a neutral atmosphere, divalent cream ions accumulate in the bath, depending on the pH, temperature, and current density of 30 to 60 percent of the total amount of cream. Macho believes that in trivalent cream plating baths with large amounts of organic matter, the deposition of the cream is independent of the amount of its divalent ions. In this case, the only reaction that occurs is the direct reduction of trivalent worm ions to the metal. With increasing the amount of cream, the reduction of trivalent cream to bivalent is accelerated and with increasing the temperature of the bath, the concentration of organic matter and the density of the trivalent cream reduction process decreases to divalent. The cream can be plated in certain conditions of its trivalent baths.}, keywords = {plating,Cream,Oxide,Bath,ion}, url = {https://www.jeires.com/article_120578.html}, eprint = {https://www.jeires.com/article_120578_14924585e3b5055d3e4c86483dc2883e.pdf} } @article { author = {Gharekhani Kasa, Fahimeh}, title = {A Study of the Architectural Design of Contemporary Museums in Iran}, journal = {Journal of Engineering in Industrial Research}, volume = {1}, number = {1}, pages = {51-74}, year = {2020}, publisher = {Sami Publishing Company (SPC)}, issn = {2783-3747}, eissn = {2717-4050}, doi = {10.22034/jeires.2020.262801.1008}, abstract = {This study examines architectural design in contemporary museums in Iran. Our current understanding of the world - and even of ourselves - is still small. Just as scientists have spoken for centuries about the quantity of nature as a kind of reality - without regard for human capacities - so architects and critics have spoken of architecture as if it were a phenomenon separate from man. They look at proportions, size, weight, and so on, as if everything existed by itself, and regardless of the role of human mental and physical nature, it can be good, right, or wrong. Architecture is associated with many points such as dimension, proportion, balance, etc., the existence of which has no room for denial. For example, if a question arises about the length of a corridor or the height of a building, it is very simple to measure that corridor, or to determine the height of the building in question based on its plan. But if we want to discuss its spiritual and philosophical dimension, it is another category; the method will be different. Therefore, issues such as place, time, perspective and culture of a particular period are raised that are not possible with simple physical measurements. There is an interesting field of study called semantics that has provided a way to resolve disputes related to intangible issues. In other words, it is a way to find a special point or points that when discussing and comparing intangible issues, such as spiritual and spiritual.}, keywords = {Museum,Design,Architecture,philosophy,time}, url = {https://www.jeires.com/article_120681.html}, eprint = {https://www.jeires.com/article_120681_21470b22514dbbf27d74a863c83c7eb4.pdf} } @article { author = {Zbuzant, Martin}, title = {Investigation of the Complex of Cream Instruments in the Steel and Oil Industry}, journal = {Journal of Engineering in Industrial Research}, volume = {1}, number = {1}, pages = {75-81}, year = {2020}, publisher = {Sami Publishing Company (SPC)}, issn = {2783-3747}, eissn = {2717-4050}, doi = {10.22034/jeires.2020.262808.1009}, abstract = {In recent years, the complexing mechanisms of various organic compounds, especially carboxylic acids in trivalent cream baths have been studied. Complexes with a certain minimum stability as well as a high thermodynamic stability are desirable. In this case, the additional potential increases the tendency of the thermodynamic stability of the trivalent cream complex to regenerate. Aqueous complexes have minimal thermodynamic stability while also having high kinetic stability for neutrality. Complexes such as glycolic and formic acid have a high creaming power. For several years, the use of a trivalent solution instead of a hexavalent ion has been considered in cream plating. The first process of decorative deposition of trivalent cream began in 1975 in the United Kingdom and in 1976 in the United States. Environmental issues, safety and benefits are the factors of industrialization of this process. Hexavalent cream ions are carcinogenic and cause sores on the skin. The toxicity of trivalent cream ions is about 100 times lower than that of hexavalent cream ions. Trivalent cream processes produce less steam than hexavalent cream. Therefore, there is no need for a gas purifier. Effluent treatment in this process is reduced tenfold because the concentration of trivalent cream is one tenth of its concentration in hexavalent processes. All of this has led to the development of cream plating based on trivalent cream compounds.}, keywords = {Cream,Capacity,Environmental Issues,Industry,ions}, url = {https://www.jeires.com/article_120682.html}, eprint = {https://www.jeires.com/article_120682_962976ab164d0d77920975bdb44d1c2a.pdf} } @article { author = {Amirikoshkeki, Masoud}, title = {Investigation of the Effect of Additives on the Morphology of Cr-WC Nano Composite Coatings}, journal = {Journal of Engineering in Industrial Research}, volume = {1}, number = {1}, pages = {82-90}, year = {2020}, publisher = {Sami Publishing Company (SPC)}, issn = {2783-3747}, eissn = {2717-4050}, doi = {10.22034/jeires.2020.262978.1010}, abstract = {SDS and saccharin additives were used in the production of Cr-WC nano composite coatings. SDS is an anionic surfactant, and the purpose of adding it was to fertilize the surface of the particles and reduce their clumping. Saccharin was added to the solution in different amounts to reduce grain size and increase coating strength. Because large amounts of saccharin and surfactant increase the brittleness of the coating and reduce its ductility. Using the results of the effect of saccharin and SDS on the morphology of the coating, an attempt was made to design the electrolyte composition in such a way that the optimal amount of these two additives could be used for experiments. Nano composite coatings are difficult to prepare because, on the one hand, variable hydrodynamic conditions have a large effect on the amount and distribution of solid particles in the coating during electroplating, and on the other hand, nanoparticles are highly prone to clumping. Composite is the non-wetting and agglomeration of tungsten nano carbon particles during preparation of plating suspension solution. On the other hand, the ceramic-ceramic connection is a weak connection and with the slightest stress, the particles come out of their place and are placed between two surfaces and provide abrasion tools. If the nanoparticles of tungsten are evenly dispersed in the coating, the coating grows evenly and worm deposits from around the particles, holding the tungsten nanoparticles in the coating like an adhesive.}, keywords = {coating,Nano composite,Nanoparticles,Tungsten Carbide,Strength}, url = {https://www.jeires.com/article_120752.html}, eprint = {https://www.jeires.com/article_120752_8d794c6b51587e8c7a13a3a7c9cddb3f.pdf} } @article { author = {Amini Sadrodin, Masood}, title = {Methods for determining dispersed particles in coatings}, journal = {Journal of Engineering in Industrial Research}, volume = {1}, number = {1}, pages = {91-98}, year = {2020}, publisher = {Sami Publishing Company (SPC)}, issn = {2783-3747}, eissn = {2717-4050}, doi = {10.22034/jeires.2020.263096.1011}, abstract = {In this research, cream-tungsten carbide nano composite coating was produced by electroplating method. In this section, the equipment used in this research, the materials used along with the test design and the parameters studied in it are mentioned. The highest abrasion rate is obtained at the lowest amount of coating hardness, ie at a frequency of 1 Hz, and the best abrasion resistance at a higher hardness coating, ie at a frequency of 1000 Hz. As can be seen in this diagram, the abrasion resistance of coatings at high frequencies has not improved much despite the presence of particles in these coatings, which can be due to the presence of more agglomerate particles in these coatings. Be. By increasing the frequency from 1 to 1000 Hz, the hardness of the coating increases from HV 590 to HV 705, which is due to the presence of more particles in the coating at high frequencies. Coating hardness increases with increasing presence of particles in the coating and decreases with decreasing presence of particles in the coating.}, keywords = {coating,Nano composite,electronic plating,Resistance,Frequency}, url = {https://www.jeires.com/article_120803.html}, eprint = {https://www.jeires.com/article_120803_fcf53243d838725e005f3636e3c3c202.pdf} }