Equivalent Exchange Research Articles

대학생의 소비자주의 정체성 발현 양태와 교양교육이 나가야 할 방향

The purpose of this study is to critically examine the expression of consumerism identity of college students and to seek the direction of liberal arts education in response. Consumerism identity is self-consciousness that is formed through consumption and placing oneself in the position of consumers and evaluating all issues with consumption logic. This study analyzes the meaning and problem of consumerism identity by dividing it into qualification suitability, justice of equivalent exchange, victimhood. As a result of the study, the persistent inquiry into qualification suitability downgrades legitimate exercise of rights to a qualification issue and tolerates a distorted structure hidden in the qualification acquisition process. The justice of equivalence exchange reinforces academicism with meritocracy. As the justice of equivalence exchange collapses, the distinction between the perpetrator and the victim is distorted. From this, liberal arts education should create a strong self that will give pride to one's values. Furthermore, it is necessary to leads to equal relations with others and open communication, and establishes the values, behavioral principles, and systems of 'the social' for alternative society.

Linear perspective as aesthetic form

Background. The article provides a theoretical reconstruction of the linear perspective functioning as more than just an artistic technique that emerged and became an attribute of paintings starting with the Italian Trecento, in particular, in the works of Giotto. The purpose of the article is to reveal the heuristic potential of aesthetic form not in reflecting the consequences of the economic landscape transformation, but in anticipating its transformation and directing the efforts of the subject in its reorganization. The research's methodology is focused on the dynamics of cultural forms through the optics of art history and aesthetic theory, as well as on socio-historical reconstruction of the context without trying to prevent vulgar sociological reductionism and economic determinism. This approach reveals the relationship between the aesthetic text and the context, and the former's potential in clarifying the subtext by articulating the serial principle's aesthetic value and promoting the modern historical type of cultural production and consumption. Methods. This artistic guideline transformed not only the order of the signifiers of the painting (in particular, it replaced the golden background, which had been mostly filled with geometric shapes, humanized the illusory space, and saturated it with mathematically verified figures and objects) but also the order of signifies in the logic of the "picture of the world" (rehabilitation of sensory perception, declaration of the infallibility eye, autonomization of vision, dominance of pictorial space, compression of time to the moment of now, unification of the status of a separate thing in the general order, legitimization of holistic anti-metaphysical programs). Results. The article reveals the connection between the antimetaphysical program of linear perspective in the artistic dimension and the Cartesian homology of space in the theoretical dimension. It also emphasizes the architectonic principle of linear perspective: the rhythmicity of geometric shapes, a stable balance of nodal points, and dynamics of basic forms' reproductions and repetitions. Conclusions. Conducted research substantiates the understanding of linear perspective not as a method of legitimizing the correct vision of things, but as a representation of the valid order and scale of the world through a clear coordinate system, aimed at unification of the system of things and equivalent exchange within it.

간쟁(諫諍)의 교육적 함의: 교육학적 관점에서 본 간쟁

This article aim to define an educational implication inherent in an expostulation on King by investigation about the theoretical and historical basis of it. As we know, Confucian school prepare the theoretical ground about scholarly official’s expostulation on King and it derive from sense of ethics that is represented the admiration on the culture of Chu(周) Dynasty. According to this, expostulation mean the embodiment of benevolence(仁) and the performance, standing on the basis of ethical emotion and practising the equivalent exchange on ethical value in relationship. Since then this is mentioned ‘Xunzi(荀子)’, Xunhwang(荀況)’s book, and ‘The Scripture on Filial Duty(孝經)’, a writing in Han(漢) Dynasty and this is required as a ethical duty on officials and sons consistently in all Dynasty adopting Confucianism. However the institutionalization of this idea is generally achieved a way guaranteeing the independence of advisory officials’(言官)s duty and advisory route(言路) after 10 Century.
 The historical record about institutionalization on scholarly officials’ expostulation is appeared since Korye(高麗) Dynasty. Certainly there are advisory officials under the office of senior ministers(門下省) and invigorating a royal education system(經筵) for King since King Yejong(睿宗) in Korye Dynasty. Especially a royal education system in Korye Dynasty is composed by scholarly officials belong to many departments such as royal literary organization(寶文閣) under King’s control until the last period of Dynasty. This means containing expostulation as an educational work.
 An expostulational system is established the ideal way to realize the scholarly King(君師) as an ideal type of king for confucian scholars after Chosŏn(朝鮮) Dynasty. This system aim to bring up King’s virtue(薰陶) and guarantee to advise his opinions freely in the face of King. On this account, royal literary organizations(集賢殿, 藝文館, 그리고 弘文館) in Chosŏn Dynasty are also developed as a consultative one. Therefore it generate the opportunity of the appearance of public politics(公論政治) and factions(朋黨). It is because of a Neo-confucian school who provide the theory to appear the isomorphism between education and expostulation.

Класичний античний поліс: владна державна група і особливості обміну та привласнення об’єктів

The article continues the series of publications about the universum evolution of the Ancient Greek sub civilization of the Antique civilization and is devoted to the characteristics of the structure of the power-holding group, the exchange of its essential forces for those of the polis civil community, as well as the struggle of its actors for the appropriation of the centralized excess, surplus and necessary product and the corresponding contradictions. The rise and development of polis democracy allowed the inclusion of representatives of various social clusters and actors of various forms of appropriation in the permanent composition of the power-holding group, and a significant complication of the latter’s composition and structure. The power-holding group becomes an aggregated actor of the mixed social-individual appropriation, and the interaction of the corresponding forms of object appropriation mainly corresponds to the complex network interconnections between this group’s traditional, socio-economic and functional sub-actors. The role of primary driving force in the evolution of the power-holding group is performed by the contradictions between its socio-economic sub-actors, whose transformed form are the contradictions between functional sub-actors. The use of the potential of the labor theory of value and the general theory of value makes it possible to define the conditions and contents of the equivalent and non-equivalent exchange of humanized and objectified essential forces between the power-holding group and the civil community in the polis, as well as the general public, synergistic public, power-proprietary and exploitative components of the centralized excess, surplus and necessary product. Despite the obvious progress, the power-holding group failed to achieve a level of complexity and self-organization adequate to the existing civil community of the polis, since the effectiveness of the mechanisms of realization of general public and synergistic public interests was inferior to that of the realization of private, clan and corporate interests.

Multi-component delocalized nonlinear vibrational modes in nickel

Delocalized nonlinear vibrational modes (DNVMs) are relatively new dynamical objects that can be used for testing interatomic potentials and for classification and finding new types of discrete breathers. In this work, for the first time, multi-component DNVMs in a single crystal of fcc nickel are studied using molecular dynamics method. Previously discovered two one-component DNVMs are used to construct and investigate properties of all possible two- and three-component superpositions. A quasi-periodic energy exchange between components in multi-component DNVMs is described. If the amplitudes of the one-component DNVMs in a superposition differ by less than four times, then an equivalent energy exchange between them is observed. Otherwise, an unequal energy exchange takes place, i.e. when the high-amplitude component gives up only a part of its energy leading to a slight increase in the amplitude of another component. The DNVMs consisting of two- and three-components have a lifetime of more than 10 ps as long as the initial atomic amplitudes do not exceed 0.08 Å. An increase in the initial amplitude leads to a substantial decrease in the lifetime due to the rapidly developing modulational instability. Some superpositions of modes with the same initial amplitudes of the components can transform into a one-component DNVM, while others remain multi-component ones. The results obtained in this work demonstrate the existence of multi-component DNVMs, being a superposition of two or three components, which significantly expands our understanding of their dynamics in an fcc lattice.

An efficient genetic algorithm for multi AGV scheduling problem about intelligent warehouse

PurposeThis study aims to address the challenge of automatic guided vehicle (AGV) scheduling for parcel storage and retrieval in an intelligent warehouse.Design/methodology/approachThis study presents a scheduling solution that aims to minimize the maximum completion time for the AGV scheduling problem in an intelligent warehouse. First, a mixed-integer linear programming model is established, followed by the proposal of a novel genetic algorithm to solve the scheduling problem of multiple AGVs. The improved algorithm includes operations such as the initial population optimization of picking up goods based on the principle of the nearest distance, adaptive crossover operation evolving with iteration, mutation operation of equivalent exchange and an algorithm restart strategy to expand search ability and avoid falling into a local optimal solution. Moreover, the routing rules of AGV are described.FindingsBy conducting a series of comparative experiments based on the actual package flow situation of an intelligent warehouse, the results demonstrate that the proposed genetic algorithm in this study outperforms existing algorithms, and can produce better solutions for the AGV scheduling problem.Originality/valueThis paper optimizes the different iterative steps of the genetic algorithm and designs an improved genetic algorithm, which is more suitable for solving the AGV scheduling problem in the warehouse. In addition, a path collision avoidance strategy that matches the algorithm is proposed, making this research more applicable to real-world scheduling environments.

A mathematical model using an equivalent exchange layer for predicting raindrop-induced nutrient ejection from soil to runoff on bare and vegetated slopes

Nutrient loss from the topsoil reduces agricultural productivity and contributes to the eutrophication of water bodies like rivers and lakes. To reduce agricultural non-point source pollution, ongoing efforts must be made to develop mathematical models that can accurately forecast the process of nutrient loss and provide a theoretical foundation for developing prevention and control strategies. In this study, the concept of an ‘equivalent exchange layer, EEL’, which consists of an ‘equivalent runoff layer’ and an ‘equivalent infiltration layer’, was proposed. The equivalent exchange model (EEM), which describes nutrient migration from upper soil to runoff, was developed on this basis. The EEM was validated, and its parameters were calibrated using 12 sets of K+ loss data on bare slopes and 30 sets of NH4+-N loss data on six vegetation growths. Overall, EEM exhibited good accuracy in forecasting the process by which the of K+ and NH4+-N concentrations changed and as the total amount of K+ and NH4+-N in the runoff (R2 ≥ 0.713,RMSE ≤ 2.373 mg/L, NSE ≥ 0.701). Compared to the model developed by Shao et al. (2021), EEM outperformed in terms of simulation performance when predicting the total amount of nutrient loss (R2 ≥ 0.963, NSE ≥ 0.911), effectively resolving the problem that the total amount of nutrient loss is overestimated. A single parameter perturbation simulation and a global sensitivity analysis revealed that the raindrop-induced nutrient transfer rate er and the depth of the equivalent exchange layer EED were the primary variables controlling nutrient loss, while the initial ratio of the depth of the equivalent infiltration layer to the equivalent exchange layer α0 and index m were the secondary variables accurately predicting nutrient content in the stable runoff stage. This research contributes to understanding the mechanisms underlying nutrient transfer on slopes.

Wealth Redistribution and Mutual Aid: Comparison Using Equivalent/Non-Equivalent Exchange Models of Econophysics.

Given wealth inequality worldwide, there is an urgent need to identify the mode of wealth exchange through which it arises. To address the research gap regarding models that combine equivalent exchange and redistribution, this study compares an equivalent market exchange with redistribution based on power centers and a non-equivalent exchange with mutual aid using the Polanyi, Graeber, and Karatani modes of exchange. Two new exchange models based on multi-agent interactions are reconstructed following an econophysics-based approach for evaluating the Gini index (inequality) and total exchange (economic flow). Exchange simulations indicate that the evaluation parameter of the total exchange divided by the Gini index can be expressed by the same saturated curvilinear approximate equation using the wealth transfer rate and time period of redistribution, the surplus contribution rate of the wealthy, and the saving rate. However, considering the coercion of taxes and its associated costs and independence based on the morality of mutual aid, a non-equivalent exchange without return obligation is preferred. This is oriented toward Graeber's baseline communism and Karatani's mode of exchange D, with implications for alternatives to the capitalist economy.

Evolutionary algorithm for vehicle routing for shared e-bicycle battery replacement and recycling

Shared electric bicycles (e-bicycles) are becoming an increasingly popular model of sharing economy that provides the public with a convenient and labor-saving transport alternative. Efficient battery replacement is critical to maintain the operational capability of e-bicycles, but is quite difficult as there are often a large number of e-bicycles that are widely dispersed. In this paper, we study a problem of scheduling multiple vehicles to deliver fully-charged batteries to and take back low-power batteries from shared e-bicycles scattered in numerous parking spots, while the low-power batteries are recharged in battery depots for potential re-utilization. The aim of this problem is to minimize the completion time of all battery replacement tasks so as to keep a high operational efficiency of the system. The problem differs from existing vehicle routing problems in two main special features: (1) equivalent exchange of fully-charged batteries and low-power batteries; (2) recycling of batteries. To efficiently solve this special problem, we propose an evolutionary algorithm using variable local-search-based mutation to balance global exploration and local exploitation and employing enhanced local search around each newly found best known solution to improve accuracy. Experiments on test instances and real-world instances demonstrate the competitive performance of the proposed method.

Equivalent Exchange Method for Decision-Making in Case of Alternatives with Incomparable Attributes

The paper is focused on searching for novel methods aimed at improving the performance and usability of a common decision-making process where a panel of experts are assisted by specialized software systems. An equivalent exchange method (EEM) is considered in the paper as a potential candidate for a versatile method applicable in expert decision-making process for solving problems in various subject domains. The method is formally described in the paper in the form of an iterative algorithm where each iteration leads to the reduce in the number of alternatives under consideration until it converges to the preferable one. The key feature of EEM consists in the fact that the original comparison between multiple alternatives described by many attributes measured in different units is replaced by the sequence of simple exchanges between pairs of alternatives where only two attributes are engaged at once. The numerical example illustrating the full run of the algorithm is thoroughly described, so the actions performed in the steps of the algorithm are explained. The case of the successful implementation of EEM as the module of Expert Decision Support System is also presented.

Standards of professional development of employees: international experience and current prospects in Ukraine

The scientific article examines the international standards of professional development of workers enshrined in the basic legal acts of the United Nations (Universal Declaration of Human Rights, International Covenant on Economic, Social and Cultural Rights, Conventions and Recommendations of ILO), Council of Europe (European Social Charter (revised), EU (Recommendations and Directives). The provisions of laws and bylaws of Ukraine on the professional development of employees are analyzed. Based on the analysis of international acts and norms of national legislation on professional development, we propose to identify the following standards of professional development of employees: high-quality training of qualified personnel in accordance with state policy priorities; ensuring proper organization of professional development of employees; equal access to professional development programs; continuity, fresh of the process of professional development; constant investment in professional development of staff; introduction of effective mechanisms for motivating staff to professional development and continuing education; compulsory professional development; practical orientation of advanced training programs. The conclusion is made about that the international experience in the field of professional development of employees is taken into account in the development of the national legislative field. Іt is proposed to launch an experimental project in the field of professional development of scientific, scientific-pedagogical, pedagogical workers during a special period; to increase opportunities for training and professional development of Ukrainian citizens abroad on the basis of equivalent tape exchange with other states; create favorable conditions for private investment, involvement of business in the professional development of employees, etc.

Effects of size for an assembly of core-shell nanoparticles with the cubic structure: Monte Carlo simulations

Using Monte Carlo simulations, we studied phase diagrams and magnetic properties of a ferromagnetic/antiferromagnetic Ising nanoparticles assembly with the spin-1/2 core and spin-3/2 shell. The system consists of nanocubes with equivalent exchange couplings of core and shell. However, the exchange couplings between the adjacent spins of the core and shell and between the nanocubes are assumed to vary. Thus, the effects of the exchange couplings and the system size on the phase diagrams are analyzing. Interesting behaviors are found when investigating the critical behavior of the system, the magnetizations, the magnetic susceptibility and the hysteresis loops. The increase of the core/shell size involves that of the temperature one. In addition, the increase in positive exchange interactions between the spins of the core and shell, on the one hand, and between the nanocubes, on the other hand, also increase the critical temperature, which favors the stable phase (3/2, 1/2).

Quantifying the Zero-Price Effect in the Field: Evidence from Swedish Prescription Drug Choices

We use Swedish data on consumer choices of therapeutically equivalent drugs to measure the zero-price effect. The Swedish benefit scheme for prescription drugs is a tier system, where each patient’s copay share is a step function of his/her qualified accumulated expenditure and can ultimately drop to zero. The copay tier a patient falls into is exogenously determined by his/her health and drug needs. In any given month, a patient pays the copay share of the lowest priced drug, plus the price difference between the chosen drug and the lowest priced drug in the same therapeutically equivalent exchange group. Therefore, when consumers cross the threshold of the zero-copay tier, the net price for the lowest priced drug will switch from a small positive amount to zero. This unique quasi-random environment allows us to apply the regression discontinuity design to quantify the zero-price effect. We do so for the full sample, as well as for two subsamples that should be less affected by state dependence. Based on a linear (quadratic) specification, the estimated zero-price effect reduces choice shares of the noncheapest alternatives by 12% (13%), 39% (48%), and 23% (25%) in the full sample, new diagnoses sample, and switchers sample, respectively.

Impact of Power Converter Current Ripple on the Degradation of PEM Electrolyzer Performances.

In this study, an endurance test of 3000 h was conducted on four equivalent proton exchange membrane (PEM) electrolyzers to identify and quantify the impact of an electric ripple current on their durability. Three different typical power converter waveforms and frequencies were explored. Signals were added to the same direct current carrier and also tested for reference. Performance comparison based on polarization curves and electrochemical impedance spectroscopy (EIS) analysis revealed that the ripple current favors degradation. Triangular waveform and a frequency of 10 kHz were identified as the most degrading conditions, leading to a sharp increase in high-frequency resistance (HFR) and the emergence of mass transport limitations due to the enhanced degradation of titanium mesh. Moreover, reversible losses were observed and further explorations are needed to decorrelate them from our observations.

System-synergetic approach to studying the essence of state power

This article is devoted to the problem of cognition and understanding of the essence of state power. Actualization is carried out by searching for a new paradigm approach in order to determine the fundamental principles that are correlated with the idea to optimize and increase the efficiency of the corresponding sphere of public relations. Acting as an alternative to the substantial and relativistic approach to the study of state power, the system-synergetic approach analyzes the phenomenon of power based on the definition of system, within which the functions of communication and regulation of public relations are assigned to power. As a result, power is seen as a property or function of a social, in particular, political system, the need for which is determined by the presence of society itself and the task of maintaining its integrity. The analysis allows stating that in most modern concepts there is a consistent rejection of the traditional interpretation of power as the result of subject-object relations, where the subject of power is an active, energetic principle, and the object undergoes impact. In contrast to the position of traditionalism, there is a tendency to interpret power as a complex polysystem permeating the entire social structure of society. As a structural and synergistic effect of the system, power is not a property of its individual element, since each element must certainly be correlated with other units of the given system. Power is an intrasystem relatedness of all elements. As a structural principle, power is realized on the basis of equivalent exchange, which means not the equivalence of the exchanged elements, but a situation in which one element is unconceivable without the other, i.e. one element exists in relation to the other, and co-develops with it. Thus, power really fulfills the function of streamlining socio-political ties, making their separation and differentiation expedient. Power, therefore, is the beginning, creating structures, increasing heterogeneities in a continuous social environment and connecting them together. Such a view allows interpreting power as a principle of functioning of the state system: if the state system, with the help of some value proposition, manages to reproduce the corresponding content of consciousness, then it functions quite stably.

Економічні та політичні аспекти зовнішньої торгівлі у науковому спадку Івана Вернадського

The article provides a historical digression on I. Vernadsky's development of foreign trade concepts, and considers its most significant factors, in particular the economic ones (freedom, mutual benefit, measure of needs, strength of economic law) and political ones (geopolitical influence, consolidation). The purpose of the article is to reveal the significance and relevance of I. Vernadsky’s views on the economic and political aspects of foreign trade and assess the scientist's contribution to the development of conceptual foundations of foreign trade based on historical sources. The theoretical basis of the research is the multi-directional application of the concept of foreign trade and the interpretation of foreign trade policy as a tool for successful economic development. The historical and economic methods of analysis, and the problem-personified approach to the study of the history of economic ideas are used. The author applies the tools of systematic approach for the layout of the studied by I. Vernadsky tools for the government’s activities in the field of customs policy and foreign trade. It is shown that I. Vernadsky was critical of the interpretation of an objective, and equivalent exchange and put forward the idea of the urgency of its participants’ needs, emphasizing the subjective nature of any exchange operations. At the same time, the scientist condemned the violent nature of external relations and exchange. Emphasis is placed on an important place in the study of foreign trade issues by I. Vernadsky – the influence of both economic and non-economic factors, in particular the nation’s level of education the and its connection with the level of trade. Also, in the article are highlighted the attitude of I. Vernadsky to the relationship of peoples, which is determined by the ratio of the size of their foreign trade. In return, asymmetry in trade can trigger the operation of the law of counteraction, which demonstrates the scientist's position on trade wars and their inevitability in the event of violence, expansion and robbery. It is emphasized that I. Vernadsky’s liberalism and policy of free trade in the issue of foreign trade should be implemented in conditions of low taxes and tariff duties. High duties not only minimize the mutual benefit of the parties in foreign trade, but also, according to the scientist, set up producers of individual countries against each other. This leads to a foreign policy confrontation between the two countries and international tensions. I. Vernadsky’s research of foreign trade issues in the XIX century is also relevant for the beginning of the XXI century, in particular, the idea of the importance of preventing neo-protectionism, trade conflicts and wars.

China’s exports in a protectionist world

Tariffs, currency wars, and protectionism pose risks for Chinese firms. In theory tariff increases and exchange rate appreciations exert equivalent effects on export volumes. This paper estimates tariff and exchange rate elasticities for China’s exports. The results indicate that, while exchange rates matter, tariffs increases deter exports almost three times as much as equivalent exchange rate appreciations do. The results also indicate that China’s flagship industries such as electronics and machinery are exposed to tariff increases and exchange rate appreciations. The paper then considers how China can promote freer trade to mitigate risks and reduce uncertainty.

Integration processes – the component of the effective implementation of public-private partnerships

The aim is to justify proposals for improving public-private partnership for the development of grain product sub-complex. The implementation of effective forms of production and economic activity requires an increase in the volume of products in various sectors of economy of Kazakhstan. Research methods contribute to the integration of commodity producers, combining the links of reproduction cycle in technological chain into a single complex from the availability of raw materials to production of finished goods. Results – it was noted that integrated entities, formed on the basis of the principles of public-private partnership, achieve a high level of efficiency and competitiveness. It is shown that in modern economic conditions, the functioning mechanism of PPP in sectors of agriculture, industry, providing production, transportation, storage and processing of grain in the republic, does not allow to fully systematically carry out largescale innovation processes. The in-depth systematization and analysis of the experience of using the mechanism of public-private partnership in grain complex, both by domestic and foreign producers who have achieved high results in this area, are required for the successful implementation of such projects, since grain industry has its own specific features. Conclusions – during the functioning of economic entities at the stage of grain processing, inter-industry relations in technological interaction are improved from product output to sale with distribution of value added. At the same time, an important direction of economic policy for activating the innovative vector of development, creating a competitive business is to ensure an equivalent intersectoral exchange, the formation of a pricing policy. The public-private partnership model greatly contributes to the achievement of the strategic goals of the regions, creating positive trends in the economic development of the territories.

Nutritional diet plan for patients with dysphagia.

To present a new method of text-modified food management for patients with dysphagia that integrates the idea of food exchange. In addition to prioritizing nutrition in each recipe, the diet plan emphasizes straightforward preparation methods that balance nutrition and palatability. On the basis of the recommended intake in the Expert Consensus, the design of the texture-modified food incorporates the concept of equivalent food exchange. The plan consists of a staple food, a meat, a vegetable, a snack, and a fruit as the base units, and the volume and nutrient density of each unit is modified to meet the needs of patients with dysphagia. Five categories of standard portions were established, the standard portion of staple foods, milk should be used instead of water during preparation, and carbohydrate components (dextrin) should be added so that each portion provides approximately 200 Kcal of energy. The standard portion of meat, protein components (90% whey) should be added to provide approximately 14 g of protein and 150 Kcal of energy per portion. Two types of standard snacks are recommended, each serving provides 250 Kcal of energy. Vegetables and fruits provide 70 Kcal and 90 Kcal of energy. We compiled 11 recipes representative of the food exchange system and our recipe design priorities (texture modification, sufficient nutrition, color, fragrance and taste). The method is combined theory and practice and can be applied to clinical nutrition work to promote the nutritional intake of patients with dysphagia.

FEASIBILITY STUDY FOR THE USE OF NATURAL MORDENITE IN PURIFICATION PROCESSES OF WASTEWATERS FROM PHARMACEUTICAL POLLUTANTS

The present research concerns the possibility of adsorptive removal of the frequently used antibiotics – moxifloxacin and norfloxacin on natural zeolites – mordenite and its acid-modified form from aqueous solutions. The adsorption of the above-mentioned antibiotics on the selected natural zeolite samples was investigated under static and dynamic conditions. Adsorption experiment under dynamic conditions carried out using the specially constructed dynamic type of laboratory equipment. Based on the data of chemical, IR spectroscopic, X-ray diffraction analyses, it has shown that when the zeolite adsorbent is treated with an acid, an equivalent exchange of extra framework cations for a hydrogen ion and dealumination occurs and silanol groups are formed at the same time. The increase in the adsorption activity of mordenite as a result of its treatment with acid is associated with an increase in the pore size due to the unblocking of the adsorbent aluminosilicate framework channels during dealumination.