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It is known that the temperature of crystallization during the synthesis of zeolite is one of the most important process parameters. However, during the research work on the synthesis of zeolite 13X and the introduction of this material into regular industrial production, it was noticed that the heating rate of the starting reaction suspension can have an equally important influence. This influence can be so pronounced that a difference of just a few minutes in reaching the crystallization temperature can make a significant difference in product quality, affect the presence of other phases in the crystal, or even determine the direction of zeolite crystallization. Therefore, the aim of this work was to show the influence of the heating rate on the quality of the obtained 13X zeolite powders. The obtained samples were analysed in terms of crystallinity (by X-ray diffraction), chemical composition, granulometry and specific surface area (by Brunauer-Emmett-Teller analysis), and regarding water and CO2 adsorption capacities. Additionally, scanning electron microscopy analysis of the samples showed the morphological characteristics of different 13X zeolite powders. The analysis results of the obtained powders confirmed the influence of the heating rate and helped to define the optimal synthesis parameters i.e. the initial temperature and heating time, that resulted in stable product quality.

Submicron and nanosized powders have gained significant attention in recent decades due to their broad applicability in various fields. This work focuses on ultrasonic spray pyrolysis, an efficient and flexible method that employs an aerosol process to synthesize titanium-based nanoparticles by transforming titanium oxy-sulfate. Various parameters are monitored to better optimize the process and obtain better results. Taking that into account, the influence of temperature on the transformation of titanium oxy-sulfate was monitored between 700 and 1000 °C. In addition to the temperature, the concentration of the starting solution was also changed, and the flow of hydrogen and argon was studied. The obtained titanium-based powders had spherical morphology with different particle sizes, from nanometer to submicron, depending on the influence of reaction parameters. The control of the oxygen content during synthesis is significant in determining the structure of the final powder. [ABSTRACT FROM AUTHOR]

In this paper, conventional solid-liquid extraction and ultrasound-assisted extraction were utilized for (poly)phenols extraction from black elderberry flowers. The extraction lasted 30 to 120 min, with a solid-to-solvent ratio of 1:15 w/v and 1:30 w/v and solvents of 30% and 60% ethanol. Total (poly)phenols, flavonoids and anthocyanins contents were measured using the Folin-Ciocalteu reagent, aluminium chloride and the pH differential methods, respectively. The results show that the extraction process has the highest velocity in the first 30 min, when the most (poly)phenols are extracted, but it becomes slower as time passes. Higher yields are obtained by utilizing a solid-to-solvent ratio of 1:30 w/v, which indicates that when the amount of drug increases over a certain optimal value, the resistance to mass transfer from a solid material to liquid increases. Also, higher yields are obtained by using a solvent that contains a higher content of ethanol. Finally, it was discovered that ultrasonic extraction provides to higher (poly)phenolic compound yields and can substitute conventional extraction methods. [ABSTRACT FROM AUTHOR]

Given that many synthetic medications can induce a variety of negative reactions in patients, a search for natural substances with minimal side effects in patients has been conducted. Nowadays, researchers are focusing on plant medicines, which have been used to heal illnesses since ancient times. The plant Crataegus monogyna Jack. (hawthorn) is the most abuntant plant in the Rosaceae family that is also used in traditional medicine. C. monogyna's pharmaceutical, phytochemical, functional, and therapeutic qualities are based on a wide range of useful secondary metabolites, which include phenolic compound (flavonoids, anthocyanins, tannins), vitamin C and antioxidants. Total (poly)phenols, flavonoids and anthocyanins contents in C. monogyna Jacq. extracts were measured using the Folin-Ciocalteu reagent, aluminium chloride and the pH differential methods, respectively. The extraction lasted 15 to 120 min, with a solid-to-solvent ratio of 1:15 w/v and 1:30 w/v and solvents of 30% and 60% ethanol. According to the results, the extraction process has the highest velocity within the first 15 min, when the majority of (poly)phenols and flavonoids are extracted, but it becomes slower as time passes. Higher yields are obtained by utilizing a solid-to-solvent ratio of 1:30 w/v rather than a solid-to-solvent ratio of 1:15 w/v, which indicates that when the amount of drug increases over a certain optimal value, the resistance to mass transfer from a solid material to liquid increases. Finally, the results about the impact of the ethanol content in the solvent demonstrate that a larger ethanol content greatly favors the extraction of flavonoids, but this is not as evident for the extraction of total (poly)phenols and anthocyanins. [ABSTRACT FROM AUTHOR]

The article examines how the deepening of the world economic crisis impacts global financial flows and performance of international financial institutions, with focus on two issues: 1) did the decrease of the Euro means the beginning of the global currency war?; 2) is there any sort of banksʼ “conspiracy” in the world gold market? Long-term financial crisis demands a decisive reform measure to mend the functioning and structure of the IMF, World Bank Group and other global and regional financial institutions. This means that the outcome of their policies has been inadequate, so far, and that their role is subjected to a critical observation in finding an efficient performance of financial markets. Beijing is becoming more generous lender for a large number of the low-performing countries, offering them the significant support in Yuans due to Chinese geopolitical interests. China and Russia in the field of economic development are strongly complemented: the scope of cooperation is very broad, and there is a strong potential for the establishment of other world currencies, which would suppress the U.S. dollar as the dominant currency in global commodity and financial transactions. The authors conclude that the struggle to increase the competitiveness of the national state, at the expense of others, continues in the era of the deepest global financial crisis. [Projekat Ministarstva nauke Republike Srbije, br. OI179023: Srbija u savremenim međunarodnim integrativnim procesima - spoljnopolitički, međunarodni, ekonomski, pravni i bezbednosni aspekti]

In this paper, the influence of process parameters on the morphological properties of fine precipitated hydrate was examined. The research was conducted with the aim of synthesizing fine precipitated aluminum hydroxide from the aluminate solution obtained by the Bayer process. Fine precipitated hydrates obtained in this way are mostly used in the non-metallurgical industry. The synthesized fine precipitated hydrate should comply with certain quality requirements such as granulometry (average particle diameter), purity, specific surface area, whiteness, etc. This paper shows the influence of certain technological parameters, namely the initial precipitation temperature, the amount and specific surface area of the seed, the influence of the NaOH/Al(OH)3 molar ratio on the characteristics of the synthesized fine precipitated hydrate in terms of the specific surface area, mean diameter and morphology of the obtained particles. [ABSTRACT FROM AUTHOR]

Ethical concerns in information systems were given new urgency to the rise of the internet and digital trading. The Web and digital corporations applied technologies make it less difficult than ever to collect, combine, and distribute information, unleashing new concerns about the proper use of customer know-how, the safety of personal privacy, and the safety of intellectual property. In this paper, we will discuss most of the current pressing ethical problems that are a product of the modern age and information technology advancement.

Consumer Price Index (CPI) is one of the national most observed economical statistic items. Its purpose is to weight the current state of goods and services to produce the overall prices index shares in the total of the consumer expenditures. CPI is used to measure effect of inflation and deflation and to adjust real value of wages, salaries, pensions, to regulate prices and deflate monetary magnitudes, to show changes in real values. In this paper, we discuss CPI of Serbia for several years period using selected products and statistical data obtained from federal research.

The aim of this research was to determine the influence of the SiO2/Al2O3 molar ratio on the specific commercial properties of NaA zeolite subtypes as final market products (4A,4A-AG and 4A-MS) under the real production and process conditions. The value of the SiO2/Al2O3 molar ratio, so-called silicate module, was set as independently variable and the effect on the physical and chemical properties of each of the subtypes of NaA zeolites was examined. The paper investigates how the SiO2/Al2O3 molar ratio affects specific properties of NaA powders, namely the ion exchange capacity, oil adsorption capacity and water adsorption capacity. Some previous theoretical and experimental studies have shown that the molar ratio plays a crucial role in the formation of these very similar but for final application different subtypes of NaA zeolite. The experimental part of this work was performed and tested in real production conditions, which can be considered as an advantage in relevance to the obtained results. Various analytical and instrumental testing methods were used for the analysis of the obtained powders, including SEM, XRD and PSD analyses. [ABSTRACT FROM AUTHOR]

Marketing can help organizations distinguish the best capital funders to pick the approach. Also, the approach itself should advertise formed. The organization should position itself as an advantageous interest as far as its hazard return profile. The organization's contentions for looking for back must match the criteria of the specific funder. The organization should adequately exhibit its case on both a sane and a passionate premise. In getting financing, the organization should constantly impart about its execution on the off chance that it is to keep up investor trust. All stated, a marketing attitude will help organizations in discovering great subsidizing sources and winning their support, and afterward keeping it. [ABSTRACT FROM AUTHOR]

The motivation behind this paper is twofold: from one viewpoint, give the reader a specialized way to deal with industrial branding, and on the other, remove the reader from the kind of otherworldly branding discourses that are normal to shopper markets. At first glance, industrial branding may appear to be basic. In any case, there are still a ton of ideas that, while natural, presently can't seem to truly come to fruition for a great deal of industrial marketers. With this paper, the creators would like to have added to this rising discourse. [ABSTRACT FROM AUTHOR]

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