Product information analysis of furniture for sitting, lying and resting

Završnim radom pod nazivom „Analiza obavijesti o proizvodu (deklaracija) namještaja za sjedenje, ležanje i odmaranje“ želi se potvrditi važnost deklariranja namještaja od drva. Deklariranje proizvoda podrazumijeva sve pisane oznake, trgovačku oznaku, zaštitni znak, naziv proizvoda, marke I slikovni prikaz. Deklaracija se na proizvod stavlja kao naljepnica ili privjesnica. Obavijest o proizvodu mora biti lako uočljiva, opće razumljiva, jednoznačna, čitljiva, neizbrisiva i ne smije biti prekrivena nekim drugim tekstom ili slikovnim materijalom. Trgovac je dužan, na zahtjev i prema izboru kupca zamijeniti proizvod koji ima nedostatak sa novim ispravnim proizvodom ili mu vratiti novac. Pravilnim deklariranjem i oglašavanjem proizvoda, prodavač poštuje Zakon o zaštiti potrošača i Zakon o općoj sigurnosti proizvoda, te kupcu omogućuju lakšu i pristupačniju kupovinu

APPLICATION OF ARTIFICIAL NEURAL NETWORKS FOR EXTERNAL NETWORK EQUIVALENT MODELING

In this paper an artificial neural network (ANN) based methodology is proposed for determining an external network equivalent. The modified Newton-Raphson method with constant interchange of total active power between internal and external system is used for solving the load flow problem. A multilayer perceptron (MLP) with backpropagation training algorithm is applied for external network determination. The proposed methodology was tested with the IEEE 24-bus test network and simulation results show a very good performance of the ANN for external network modeling

Product information analysis of furniture for sitting, lying and resting

Završnim radom pod nazivom „Analiza obavijesti o proizvodu (deklaracija) namještaja za sjedenje, ležanje i odmaranje“ želi se potvrditi važnost deklariranja namještaja od drva. Deklariranje proizvoda podrazumijeva sve pisane oznake, trgovačku oznaku, zaštitni znak, naziv proizvoda, marke I slikovni prikaz. Deklaracija se na proizvod stavlja kao naljepnica ili privjesnica. Obavijest o proizvodu mora biti lako uočljiva, opće razumljiva, jednoznačna, čitljiva, neizbrisiva i ne smije biti prekrivena nekim drugim tekstom ili slikovnim materijalom. Trgovac je dužan, na zahtjev i prema izboru kupca zamijeniti proizvod koji ima nedostatak sa novim ispravnim proizvodom ili mu vratiti novac. Pravilnim deklariranjem i oglašavanjem proizvoda, prodavač poštuje Zakon o zaštiti potrošača i Zakon o općoj sigurnosti proizvoda, te kupcu omogućuju lakšu i pristupačniju kupovinu

Pravni položaj izbjeglica

U radu su obraðeni najistaknutiji problemi tzv. ãizbjeglièkog pravaÒ (refugee law) kao jednog od va¾nih podruèja pravne prakse danas. Izvr¹ena je analiza znaèajnih instituta te grane prava poput naèela non-refoulement, staturorne izbjeglice, ratne izbjeglice i drugo, s posebnim osvrtom na stanje u Hrvatskoj. Na kraju rada dan je prikaz izabranih primjera iz prakse Europskog suda za ljudska prava te usporednopravnih primjera koji pru¾aju potpuniju perspektivu analiziranih instituta

Allergic Rhinitis and Adenoidal Hypertrophy

Background: Allergic rhinits is a type of inflammation in the nose which occurs when the immune system overreacts to allergens in the air. The underlying mechanism involves IgE antibodies that attach to an allergen, and subsequently result in the release of inflammatory chemicals such as histamine from mast cells. It is triggered by environmental allergens such as pollen, pet, hair, dust or mold. Inherited genetics and environmental exposures contribute to the development of allergies. Signs and symptoms of allergic rhinitis are runny or stuffy nose and it can affect sleep and normal daily functions. Adenoidal hypertrphy is the unusual growth of the adenoid (pharyngeal tonsil) that causes an obstruction of the nasal airways. Adenoids start to get sizable during the first year of life and reach maximal volume in the age group of 5-6 years. Just how big the adenoids become is quite variable among individual children. Objective: To determine the relationship between adenoid hypertrophy and allergic rhinits in children. Methods: Retrospective study of clinical studies for adenoid hypertrophy in children with allergic rhinitis. Results: Some authors found that patients with allergic rhinitis have larger adenoidal tissue, but most of them found a reverse clinical picture with possible interpretation that severe anterior nasal obstruction, mainly caused by allergy, affects the passage of allergens able to stimulate adenoid tissue to enlarge. Infections may also play a more important role in the absence of allergy. Conclusion: In children with allergic rhinitis, we should not only look for adenoidal hypertrophi. ENT doctor must pay attention to the anterior nasal obstruction by inferior turbinate hypertrophy

Lightning caused overvoltages on power transformers recorded by on-line transient overvoltage monitoring system

Transient overvoltages generated by lightning strikes or switching operations represent a significant risk to bushings and windings of power transformers. They cause stress on the insulation system and can, over time, cause dielectric failure and damage to power transformers. Many transformer failures are reported as dielectric failures and they are not necessarily linked to any particular event when they occur but may be the result of prior damage from transient overvoltage events. Lightning and switching overvoltage waveforms appearing at transformer terminals in real operating conditions may significantly differ from standard impulse voltage waveforms used during laboratory testing. The number and amplitudes of overvoltages which stress the insulation depend on various parameters such as the lightning strike density in the considered area, since it determines how often the transformer is stressed by lightning overvoltages. Since the overvoltage amplitudes at transformer terminals are usually unknown, an on-line overvoltage transient recorder can be used with the ability to sample, analyse and store transients in real-time. In this paper, an on-line transient overvoltage monitoring system (TOMS) for power transformers is presented that is capable to continuously record in real-time various kinds of transient overvoltages such as lightning or switching overvoltages. Special attention is paid to lightning caused transient overvoltages recorded at the terminals of 150 MVA power transformer. Recorded waveforms originating from lightning strikes to overhead lines are correlated with data from the lightning location system (LLS) and supervisory control and data acquisition (SCADA) system. Collected data about overvoltage stresses can be used as the basis for the assessment of the transformer insulation condition, estimation of health index and for analysis of various kinds of events such as faults or equipment failures

Lightning caused overvoltages on power transformers recorded by on-line transient overvoltage monitoring system

Transient overvoltages generated by lightning strikes or switching operations represent a significant risk to bushings and windings of power transformers. They cause stress on the insulation system and can, over time, cause dielectric failure and damage to power transformers. Many transformer failures are reported as dielectric failures and they are not necessarily linked to any particular event when they occur but may be the result of prior damage from transient overvoltage events. Lightning and switching overvoltage waveforms appearing at transformer terminals in real operating conditions may significantly differ from standard impulse voltage waveforms used during laboratory testing. The number and amplitudes of overvoltages which stress the insulation depend on various parameters such as the lightning strike density in the considered area, since it determines how often the transformer is stressed by lightning overvoltages. Since the overvoltage amplitudes at transformer terminals are usually unknown, an on-line overvoltage transient recorder can be used with the ability to sample, analyse and store transients in real-time. In this paper, an on-line transient overvoltage monitoring system (TOMS) for power transformers is presented that is capable to continuously record in real-time various kinds of transient overvoltages such as lightning or switching overvoltages. Special attention is paid to lightning caused transient overvoltages recorded at the terminals of 150 MVA power transformer. Recorded waveforms originating from lightning strikes to overhead lines are correlated with data from the lightning location system (LLS) and supervisory control and data acquisition (SCADA) system. Collected data about overvoltage stresses can be used as the basis for the assessment of the transformer insulation condition, estimation of health index and for analysis of various kinds of events such as faults or equipment failures

Hip-hop from dancers’ viewpoint: Dance, lifestyle, and/or subculture?

The paper presents the results of field research on the population of dancers – members of the hip-hop community who are “contestants” in battles. The field research was carried out in April 2022 on a sample of dancers aged 17 to 40 (N = 31). The research results indicate that the hip-hop community in Serbia is small, but that such battles in specific forms contribute to the community’s maintenance and expansion. Battles also play a significant role in the progression and expression of dancers as individuals. Dancers consider hip-hop to be not only an art form but much more, hip-hop is synonymous with a lifestyle and a “way of looking at the world” for dancers. Although the research was carried out on a small sample, it represents the author’s pioneering contribution to a deeper understanding of the hip-hop community in Serbian society. It also indicates the need to carry out compatible research in the future

Mahonia aquifolium Extracts Promote Doxorubicin Effects against Lung Adenocarcinoma Cells In Vitro

Mahonia aquifolium and its secondary metabolites have been shown to have anticancer potential. We performed MTT, scratch, and colony formation assays; analyzed cell cycle phase distribution and doxorubicin uptake and retention with flow cytometry; and detected alterations in the expression of genes involved in the formation of cell-cell interactions and migration using quantitative real-time PCR following treatment of lung adenocarcinoma cells with doxorubicin, M. aquifolium extracts, or their combination. MTT assay results suggested strong synergistic effects of the combined treatments, and their application led to an increase in cell numbers in the subG1 phase of the cell cycle. Both extracts were shown to prolong doxorubicin retention time in cancer cells, while the application of doxorubicin/extract combination led to a decrease in MMP9 expression. Furthermore, cells treated with doxorubicin/extract combinations were shown to have lower migratory and colony formation potentials than untreated cells or cells treated with doxorubicin alone. The obtained results suggest that nontoxic M. aquifolium extracts can enhance the activity of doxorubicin, thus potentially allowing the application of lower doxorubicin doses in vivo, which may decrease its toxic effects in normal tissues

Harmonic Performance Analysis of Static Var Compensator Connected to the Power Transmission Network

The static var compensator (SVC) is a device which is designed to compensate reactive power, increase voltage stability and to reduce voltage fluctuations. Thyristor controlled reactors (TCRs) are composed of reactors in series with bidirectional pair of thyristors. Current through reactors can be continuously controlled by changing the firing angle of thyristor valves, thus the inductive power can be easily controlled. Typical applications of TCRs in AC systems are voltage stabilization and temporary overvoltage reduction, stability improvement, damping of power oscillations and load balancing. In this paper, harmonic performance analysis of SVC equipped with TCRs is presented. SVCs utilizing TCRs generate harmonic currents and therefore it is necessary to determine the effect of harmonics generated by the SVC on the power system and its elements. This includes interaction of the SVC with the system, the SVC performance under balanced and unbalanced operating conditions and finally, evaluation of countermeasures such as installation of harmonic filters. In order to carry out these analysis, it is necessary to determine harmonic characteristics of the network at the point of SVC connection, existing levels of harmonics, and to know appropriate standards regarding acceptable harmonic levels in the power system. Since harmonic distortions in the system are caused by the interaction between SVC and the system, all system contingencies which may affect system’s frequency response should be evaluated. Detailed power system model should be considered to make sure that parallel resonance points of system do not directly coincide with characteristic harmonics from the SVC. Harmonics generated by SVCs are largely dependent on the operating point within the SVC characteristic. A conservative approach is to use the maximum values of harmonics generated within the spectrum irrespective of the operating point. The results of harmonic performance analysis are important for appropriate design of SVC. Harmonic performance analysis related to SVC application which are presented in this paper include the determination of: frequency response of the transmission network impedance required for the specification and design of filters; the effects of SVC generated harmonics on the power system; the overall filter requirements and countermeasures to reduce harmonics to acceptable level