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Theoretical Study of Various Fluids on the Transient Performance of a Two-Phase Closed Thermosyphon (TPCT)
No full textPassive cooling heat exchangers are important for a nuclear reactor. Due to many advantages of passive cooling mechanism it may be used in nuclear reactors by employing two-phase closed thermosyphon (TPCT) during shutdown regime. Many thermosyphons can be penetrated in cooling system so that, the condenser section is exposed to air and the evaporator (evaporator) section immersed into water pool. Our study is proposed to predict the thermal behaviour of TPCT with different fluids, Water, Toluene, Acetone and Heptane. The fluid which realizes better heat transfer characteristics prediction is our study objective. The mathematical model is developed to predict thermal behaviour of these fluids to classify the most appropriate fluid. Water, acetone, heptane, and toluene are selected as working fluids in this study. Engineering Equation solver is used to formulate our model with finite difference numerical method. The results show that, Acetone has the highest heat transfer coefficient and the lowest thermal resistance in evaporator section. Water has the highest critical heat flux and highest evaporator surface temperature. Water as well has higher heat transmission coefficient in the evaporator section after Acetone. It has also low wall temperature and highest heat transfer coefficient in condenser section. Water heat transfer coefficient is three times more than the other fluids and more output cooling capacity. For the same size of TPCT, while the Acetone is the lowest thermal resistance, but water is more preferable working fluid because it is more available with low thermal resistance as well and highest cooling capacity which enables the TPCT to have more cooling capacity Validation of the proposed theoretical model is performed and showed a good evaporator and condenser surface temperature agreement with the empirical results
Artificial Neural Networks Application for the Croatian School Maintenance Cost Estimation
No full textThe quality of education is associated with the condition of the infrastructure in which the educational process occurs, necessitating the continuous maintenance of these facilities. Limited and often insufficient maintenance funds pose a challenge in this context. Current cost estimates are inaccurate, and data on school and maintenance costs are constrained. More accurate maintenance cost plans would contribute to a better understanding of budget distribution and more efficient financial management. This study aims to investigate the application of artificial neural networks (ANNs) in planning annual maintenance costs for schools in the Republic of Croatia (Primorje-Gorski Kotar County). Using a database and DTREG software, three different ANN models were developed: a multilayer perceptron (MLP), a generalized regression neural network (GRNN), and a radial basis function neural network (RBFNN). Comparisons of the results showed that the GRNN is optimal and achieves the highest accuracy in estimating school maintenance costs. These findings can benefit educational institutions and public bodies in budget planning and decision-making regarding maintenance
Extending VUML with Behavioral Modeling: A UML-Based Approach for Multi-View Object Specification
No full textThe VUML (View-based UML) profile makes it possible to create unified, multiview models for complex systems. Nevertheless, the work already done focuses mostly on structural issues and does not fully cover behavioral concerns. With an emphasis on multi-view objects, this study adds capabilities to the VUML profile to represent system behavior. We suggest modifying UML state machines to express view object behaviors and how they combine to form global multi-view object behaviors. Our method allows for the independent construction of view behaviors, followed by a methodical composition process. The outcomes demonstrate how our approach improves VUML's capacity to represent intricate, multi-view system behaviors while preserving concern separation. The work being done here helps to close the gap that exists between structural and behavioral modeling in multi-view systems, which has implications for developing complex software systems using model-driven development
Utilizing Digital Therapeutics Technology to Improve Willingness to Actively Participate in Gait Rehabilitation Training and Increase Interest in Treatment
No full textIn this study, we demonstrated the feasibility of 'Morning Walk S200' as a rehabilitation training tool using an eXtended Reality (XR) system for those who are in need of gait rehabilitation. The lower limb rehabilitation training robot performs repetitive training according to the specified input gait trajectory. While the robot constructs passive training, it is crucial to encourage patients to engage in active training in order to enhance treatment effectiveness. 'Morning Walk S200' utilizes a diverse range of VR (Virtual Reality) experiences—such as walking through Saryeoni Forest in Jeju Island, landscaping, a baseball batting game, and the Blue and White Flag game—all designed to improve patients' active participation and increase interest in their treatment. Additionally, this study includes several papers that validate the technical efficiency of "Morning Walk S200" and examine the VR content. We suggest that developing innovative and engaging treatment options is essential, highlighting the need to utilize VR content effectively to enhance the outcomes of gait rehabilitation training
LTE Coverage Planning Based on Improved Grey Wolf Optimization
No full textAutomatic planning and dimension optimization of LTE is one of the crucial tasks in the mobile networking community. It is well known that this process is an NP-hard issue that requires huge computing resources. We also noticed that the actual proposed solutions are still inefficient in terms of scalability (handling a large number of eNodeBs) and runtime effectiveness. Moreover, SINR handling and variability of propagation loss models with respect to areas' types further complicate the coverage planning task. In this paper, we propose a swarm intelligence-based method for effectively placing and configuring the eNodeBs of an LTE network. In particular, we propose two variants of grey wolf optimizer (GWO), namely a discrete version of GWO (DGWO) and an improved version of GWO (IGWO) for LTE coverage planning. The improved version consists of an additional local search rule that allows for exploring regions closer to the promising solutions. The approaches are simulated on an urban area with many types of clutter. The IGWO technique had a coverage of 99.0% of 10 dB SINR rate and 95.1% of 12 dB SINR rate. The obtained results show that IGWO is more effective than the discrete one and other existing metaheuristics in terms of cost and coverage rates. More specifically, it ensures a coverage improvement (with respect to 10 dB SINR rate) of 10.6%, 10.5%, and 2.6 % in comparison to DGWO, Tabu search (TS), and discrete particle swarm optimization (DPSO) respectively
Prayer and Attitude Towards Others in the Opening Section of Cantar de mio Cid
No full textCilj je ovoga rada dati analizu uvodnoga dijela Cantar de mio Cid u svjetlubiblijskih paralelizama te doktrinarnih i molitvenih uzoraka. Uvodni dio spjevau kojem se pripovijeda o junakovu progonu iz srednjovjekovne Castille obiluje, pored poznatih i vidljivih molitvenih obrazaca, brojnim primjerima prikrivenihbiblijskih utjecaja na koja se u dosadašnjim istraživanjima ovoga teksta nijeobraćalo dovoljno pozornosti.The aim of this paper is to present an analysis of the introductory section of Cantar demio Cid in the light of biblical parallels and doctrinal and prayer patterns. This sectionof the song, which tells about the hero’s persecution by medieval Castile, in additionto well–known and visible prayer patterns, is full of numerous examples of latentbiblical influences that have not been under sufficient scrutiny in previous research.Therefore, Cid’s figure embodies the theological virtues of faith, hope and love onthe one hand, and the cardinal virtues of prudence, justice, strength and moderationon the other. The main hero incorporates all the essential elements of doctrine andmorality, prayer, virtue, but also practical life decisions into a literary text. Cantar demio Cid is therefore — apart from being a superb literary work — also a handbookon Christian life depicting a person of flesh and blood, an individual who strives tolive and survive, to remain morally upright in circumstances that are often far fromideal. This paper will focus on one fragment of the main character’s complex personality,more precisely on his relationship to God and his neighbour — primarily tomembers of his immediate family — in an extremely difficult crisis moment, namely, the Cid’s expulsion from Castile; moreover, the focus will be on the reaction of his family in religious and moral terms, particularly as regards the hero’s wife Ximena
The Role of Eudaimonic Well-Being in Positive Memorable Tourism Experiences: Does Gain Bring More Gain?
No full textThe objectives of the present study were to determine the associations of eudaimonic well-being indicators,
including meaning-in-life dimensions, life satisfaction, and authenticity scores, with memorable tourism
experiences (MTEs) and to examine the unique contributions of these variables in MTEs. A total of 605
participants (265 women, 340 men) with a mean age of 33.42 (SD = 6.75) years participated in this study.
The Memorable Tourism Experience Scale, the Meaning in Life Questionnaire, the Satisfaction with Life
Scale, and the Authenticity Scale were administered. Regression analysis findings revealed that all the variables
explained 87% of the total variance in MTEs; nevertheless, only life satisfaction and search for meaning scores
accounted for the most significant contributions. These findings demonstrate that tourists who lack meaning
in their lives and report a lower degree of life satisfaction are less likely to create and collect positive memories
during their visits. Thus, practitioners should be more aware of the psychological needs of their guests and
offer more eudaimonic opportunities that can become positive memories
Protection of Creditors and Employees in Cross-Border Reorganizations of Companies
No full textIzmjenama i dopunama Zakona o trgovačkim društvima iz 2023. godine poboljšane su postojeće odredbe o prekograničnim pripajanjima i spajanjima te su uređene prekogranične podjele s osnivanjem te prekogranična preoblikovanja društava kapitala. Time se domaćim društvima kapitala te društvima kapitala iz država članica EU-a daje široki izbor oblika prekograničnog prestrukturiranja na unutarnjem tržištu EU-a, u skladu s njihovim obilježjima i potrebama. Ako je riječ o vjerovnicima i radnicima društava koja sudjeluju u tim statusnim promjenama, proširuje se njihovo pravo na obaviještenost te im se daje pravo stavljati primjedbe na plan prekogranične statusne promjene. Na temelju toga oni mogu donijeti odluku o korištenju individualnih sredstava zaštite te posredno utjecati na odluku skupštine društva o statusnoj promjeni. Vjerovnici imaju pravo tražiti osiguranje za nedospjele tražbine prije nastanka pravnih učinaka statusne promjene. Pravo radnika na suodlučivanje u društvu preuzimatelju, novim društvima ili preoblikovanom društvu štiti se odgovarajućom primjenom odredbi Zakona o sudjelovanju radnika u odlučivanju u SE-u i u SCE-u. Time se sprječava oduzimanje ili umanjenje prava radnika na suodlučivanje u prekograničnim statusnim promjenama.Amendments to the Companies Act from 2023 improved existing provisions on cross-border mergers and introduced new provisions on cross-border divisions and conversions of companies. Both domestic companies and those from EU Member States have the option to select a cross-border reorganization procedure that aligns with their specific characteristics and needs. Creditors and employees of companies participating in cross-border reorganizations have the right to be informed about the consequences of these operations. They have the ability to raise objections to the cross-border reorganization plan, thereby indirectly influencing the company’s decision on the reorganization. Based on the information provided, creditors can request guarantees for any outstanding claims before the cross-border reorganization takes effect. Employee participation rights in the resulting company are protected by the application of the provisions outlined in the Act on Employees Participation in Decision-Making in SE and SCE. This prevents suspension or reduction of employee participation rights in cross-border operations
Usucapion in the Context of an Individual Correction Procedure – Echoes of a Review Decision by the Supreme Court of the Republic of Croatia
No full textU radu se razmatra institut dosjelosti u kontekstu pojedinačnog ispravnog postupka. Naime, pojedinačni ispravni postupak često je jednostranački postupak (dostava protivnoj strani nije osobna već obična), gdje kontradiktornost može biti znatno reducirana ili isključena, činjenice se utvrđuju sa stupnjem vjerojatnosti, a pravo na pravne lijekove je ograničeno. Kako se pojedinačni ispravni postupak sastoji od dvije etape, u radu se razmatra može li dosjelost sama po sebi biti opravdan razlog za otvaranje pojedinačnog ispravnog postupka (bez dostave adekvatne isprave na temelju koje se na razini vjerojatnosti može utvrditi podnositeljevo knjižno pravo), te se isto tako razmatra može li se dosjelost, i ako može kojim dokazima, utvrđivati u drugoj etapi postupka. Uz navedeno razmatra se i odnos između pojedinačnog ispravnog postupka i parničnog postupka radi utvrđenja prava vlasništva. Pri svemu se uzima u obzir to da u pojedinačnom ispravnom postupku, kao izvanparničnom (nespornom) postupku dolaze do izražaja oficijelne i inkvizitorne ovlasti suda.The paper examines whether usucapion can be a legitimate ground for initiating an individual correction procedure. Specifically, an individual correction procedure is often a one-sided process (notification to the opposing party is not personal but ordinary), lacks an adversarial nature or has a significantly reduced adversarial nature, and relies on establishing facts based on a probability standard. Since the individual correction procedure consists of two stages, the paper discusses whether usucapion alone can be a sufficient reason for opening an individual correction procedure (without submitting an adequate deed to establish the applicant’s registered right on a probability basis). It also explores whether, and if so, by what evidence usucapion can be determined in the second part of the process. Additionally, it examines the relationship between the individual correction procedure and civil litigation for determining ownership rights. Throughout, consideration is given to the fact that, as a non-contentious process, the individual correction procedure allows the court inquisitorial powers