O. Aleksić, V. Desnica, M. Luković and Lj.D. Živanov
Thick film symmetrical LC cells with two pairs of terminations were printed on alumina using PdAg paste and crossover dielectric. Planar inductors such as meander, spiral…
Abstract
Thick film symmetrical LC cells with two pairs of terminations were printed on alumina using PdAg paste and crossover dielectric. Planar inductors such as meander, spiral, bispiral, and solenoid in plane were distributed over planar capacitors such as sandwich, interdigitated and segmented. Attenu‐ation and Smith charts of symmetrical EMI LC cells were measured on network analyzer in the range of 1 MHz to 3 GHz. Two or three main LC cells were joined in series to sum attenuation. The obtained results were compared mutually, at first, and than with the cubic (chip) EMI LC filters. The obtained EMI noise suppression was similar, but the filter band of thick film LC cells was much wider.
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O.S. Aleksic, S.M. Savic, M.V. Nikolic, L. Sibinoski and Lukovic
The purpose of this paper is to apply negative thermal coefficient (NTC) thick film segmented thermistors (TFSTs) in a micro‐flow sensor for water.
Abstract
Purpose
The purpose of this paper is to apply negative thermal coefficient (NTC) thick film segmented thermistors (TFSTs) in a micro‐flow sensor for water.
Design/methodology/approach
A TFST is printed using NTC paste based on nickel manganite. The resistance of this thermistor is measured in a climatic chamber and the resulting curves are calibrated. A micro‐flow sensor is designed using a self‐heated segmented thermistor. The sensing principle is based on heat loss depending on the water flow intensity through the capillary. Water flow calibration is performed. The sensor sensitivity, inertia, and stability are analyzed.
Findings
The micro‐flow sensor exhibits good stability, suitable sensitivity, and inertia for integral measurements of water flow.
Practical implications
Advantages of a micro‐flow sensor using a TFST include low energy consumption, simple measuring procedure, and passive electronics.
Originality/value
This paper describes initial work on a micro‐flow sensor for water using TFSTs.
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O.S. Aleksić, P.M. Nikolić, D. Vasiljević‐Radović, Luković and S. Durić
A variety of thick film planar inductors, designed forapplications in the HF range, were printed from conductive PdAg and NiFe2O4 ferrite paste on alumina substrate. Pure ferrite…
Abstract
A variety of thick film planar inductors, designed for applications in the HF range, were printed from conductive PdAg and NiFe2O4 ferrite paste on alumina substrate. Pure ferrite powder with a nanometric particle size was used in the NiFe2O4 paste preparation. The ferrite thick film layer characterisation was performed on small spirals, after which the following inductor planar geometries were tested together with ferrite layers: meanders, spirals, bispirals and solenoid in plane. Their impedance was analysed with an impedance analyser in the MHz‐GHz range. The results obtained were compared with the properties of the smallest cubic inductors and with the literature data for planar inductors (theoretical and practical). A comparison was made of the L geometries printed. It was observed that better utilisation of the thick ferrite layers was achieved on L geometries with equally distributed windings over the thick ferrite layers.
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Ilya A. Surov, Vlada V. Ignateva and Andrey Y. Bazhenov
The study aims to reveal regularities of collective decision in groups of varying cooperativity and to investigate the influence of individualism–collectivism cultural dimension…
Abstract
Purpose
The study aims to reveal regularities of collective decision in groups of varying cooperativity and to investigate the influence of individualism–collectivism cultural dimension on the emergence of collective behavioral entities.
Design/methodology/approach
An agent-based model of group behavior is used to simulate the logic of collective binary decisions defined by reaching a consensus threshold. The key parameter of the model is the cooperativity of interaction between individuals which locates the group in individualism–collectivism cultural dimension. The probabilities of collective decisions are measured as a function of individual preferences and the strength of cooperation between agents.
Findings
Strong, weak and middle point cooperativities of inter-individual interaction define three distinct regimes of collective decision logic, namely, individualism, conformism and criticality. The critical organization allows the group to generate coherent non-predetermined collective behavior in statistical agreement with individual preferences.
Research limitations/implications
Emergent collective behavior with coherent and nondeterministic decision-making can be modeled in an agent-based approach with local interaction between individuals tuned to a critical point. Variation of a single cooperativity parameter accounts for a continuous transition between organizations of the group inherent to inert matter and living systems.
Social implications
A new organization of social systems distinguished by internally relaxed relations and large-scale freedom is found beyond the traditional individualism–collectivism contraposition. This state is reached by tuning behavioral logic of individuals to a critical balance of individual and collective values.
Originality/value
Individualist, conformist and critical regimes of collective organization distinct in terms of integrity, complexity and determinism are recognized as universal organizational classes of nature spanning both inert and living systems. In particular, individualist and conformist regimes produce simple deterministic behavior typical for gases and solid bodies, whereas the critical organization generates complex nondeterministic behavior inherent to living organisms.
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O.S. Aleksić, B.M. Radojčić and R.M. Ramović
The paper aims to focus on thick film planar thermistors.
Abstract
Purpose
The paper aims to focus on thick film planar thermistors.
Design/methodology/approach
Thick film planar thermistors such as rectangular, sandwich, multilayer, segmented and interdigitated were printed of law temperature NTC paste called NTC 3K3 95/2 (Ei Iritel). Their resistivity was measured at room temperature as a function of volume resistivity variations due to electrode effect (diffusion of PdAg into NTC layer) and variation of geometrical parameters such as length l, width w, thickness d, number of segments n. The experimental data obtained were used in forming a model by the simple fitting procedure for counting diffusion effect on volume resistivity and resistivity dependence on geometrical parameters.
Findings
Thermal behavior of NTC thick films was measured in the range of −30‐120°C. Exponential factor B was fitted for measured values and included in the proposed thick film thermistors model. The agreement of measured and calculated data enables simulation of new thermistor geometries.
Originality/value
The paper focuses on the experiment which was the first step in forming a total physical/mathematical model proposed for thick film thermistor resistivity.
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Food tourism, integral to the travel experience, reflects deep cultural and traditional identities, fostering local development and heritage preservation. This chapter explores…
Abstract
Food tourism, integral to the travel experience, reflects deep cultural and traditional identities, fostering local development and heritage preservation. This chapter explores the evolving characteristics of the post-COVID-19 food tourist, drawing on interviews with food tourism travellers to understand the pandemic’s impact on travellers’ preferences and the role of food tourism in promoting social sustainability and justice in destination communities. Through food tourists’ narratives, this study reveals a growing emphasis on authentic, regional culinary experiences and their significance in advancing social sustainability. The findings enable the identification of the post-pandemic food tourist, who is driven by a dedication to health, sustainability, and cultural education.
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Amir Asgari, Ali Khorsandi Taskoh and Saeed Ghiasi Nodooshan
This paper aims to introduce a conceptual model for the shaping of the innovation district under the anchor approach by extracting the specifications of the fourth-generation…
Abstract
Purpose
This paper aims to introduce a conceptual model for the shaping of the innovation district under the anchor approach by extracting the specifications of the fourth-generation university.
Design/methodology/approach
This study selected 550 resources and reduced them to 190 to achieve the most appropriate resources. This study used a meta-synthesis analysis approach using a text-mining method due to the multidisciplinary and voluminous nature of contents.
Findings
The results first reveal the shaping process and the components of innovation districts, which are: innovational urban infrastructures, knowledge economy and competitiveness and academic development. Second, this study also shows the specifications of a fourth-generation university to shape innovation districts.
Practical implications
This study also informs the policymakers and researchers internationally about the implementation requirements of a fourth-generation university and the shaping mechanisms of an innovation district.
Originality/value
This paper is pioneer about two concepts, first, it shows the shaping process of an innovation district, providing a large-scale insight about the components and second, this illustrates for the first time the specifications of a fourth-generation University practically as an anchor institute to shape innovation district.
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O.S. Aleksić, P.M. Nikolić, M.D. Luković and D. Vasiljević-Radović
O.S. Aleksić, P.M. Nikolić, T.D. Grozdić and Luković
Various thick film varistor constructions were made and characterised: ‘sandwich’, ‘interdigitated’ and ‘segmented’ varistors. The varistor active layer thickness, the electrode…
Abstract
Various thick film varistor constructions were made and characterised: ‘sandwich’, ‘interdigitated’ and ‘segmented’ varistors. The varistor active layer thickness, the electrode surface value and shape were varied. The Ul characteristics of these varistors were compared mutually, and with the Ul characteristics of the smallest chip varistors. In accordance with the results obtained, it has been shown that thick film printed varistors composed of ZnO and with additives could be applied as discrete components or integrated into a hybrid circuit.
The institution of the university has played a significant role in the economic, social, political, and cultural developments of society throughout history, which has resulted in…
Abstract
The institution of the university has played a significant role in the economic, social, political, and cultural developments of society throughout history, which has resulted in presenting different but also contradictory views on university missions. After the middle of the twentieth century, some economic developments, especially technological ones, have led to the maximum domination of economic discourse over university missions and, consequently, the marginalization of other aspects of university missions, which constitute a significant part of the contribution of universities in society. In this regard, this study aimed to identify the missions of universities based on a comprehensive understanding of the contribution of universities in society. This study uses a systematic qualitative review strategy for collecting and investigating the data and a metasynthesis method to analyze and synthesize the findings. The data included 130 valid studies related to university missions. The research findings indicated 18 important university missions, 11 of which are considered transeconomic missions, including social, political, and cultural ones. Among the implications of this research are: the necessity of redefining higher education policy frameworks based on a more comprehensive understanding of the missions of universities and a warning about policy frameworks based on the exclusive authorization for their role in the knowledge-based economy.