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Wyświetlanie 1-15 z 10731
Tytuł:
Applicability of artificial intelligence in smart healthcare systems for automatic detection of Parkinson’s Disease
Autorzy:
Pallathadka, Harikumar
Padminivalli V., S.J.R.K.
Vasavi, M.
Nancy, P.
Naved, Mohd
Kumar, Harish
Ray, Samrat
Powiązania:
https://bibliotekanauki.pl/articles/38709253.pdf
Data publikacji:
2024
Wydawca:
Instytut Podstawowych Problemów Techniki PAN
Tematy:
Parkinson’s disease
detection
machine learning
relief algorithm
LDA algorithm
SVM-RBF
accuracy
sensitivity
specificity
choroba Parkinsona
wykrywanie
nauczanie maszynowe
algorytm ulgi
Algorytm LDA
dokładność
wrażliwość
specyficzność
Opis:
Parkinson’s disease is associated with memory loss, anxiety, and depression in the brain. Problems such as poor balance and difficulty during walking can be observed in addition to symptoms of impaired posture and rigidity. The field dedicated to making computers capable of learning autonomously, without having to be explicitly programmed, is known as machine learning. An approach to the diagnosis of Parkinson’s disease, which is based on artificial intelligence, is discussed in this article. The input for this system is provided through photographic examples of Parkinson’s disease patient handwriting. Received photos are preprocessed using the relief feature option to begin the process. This is helpful in the process of selecting characteristics for the identification of Parkinson’s disease. After that, the linear discriminant analysis (LDA) algorithm is employed to reduce the dimensions, bringing down the total number of dimensions that are present in the input data. The photos are then classified via radial basis function-support vector machine (SVM-RBF), k-nearest neighbors (KNN), and naive Bayes algorithms, respectively.
Źródło:
Computer Assisted Methods in Engineering and Science; 2024, 31, 2; 175-185
2299-3649
Pojawia się w:
Computer Assisted Methods in Engineering and Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Burnout and resilience among physical therapy students: a cross-sectional study
Autorzy:
Almurdi, Muneera M.
Alrushud, Asma S.
Algabbani, Maha F.
Shaheen, Afaf A.
Alsubiheen, Abdulrahman M.
Aati, Sara M.
Aldosari, Rana A.
Alsharif, Reham A.
Alrashed, Fahad A.
Shalabi, Kholood M.
Powiązania:
https://bibliotekanauki.pl/articles/46623859.pdf
Data publikacji:
2024-09-17
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
resilience
burnout
emotional exhaustion
depersonalization
personal achievement
physical therapy students
Opis:
Background This study aimed to examine the prevalence of burnout, determine burnout-related factors, investigate resilience levels, and assess the relationship between burnout and resilience among physical therapy (PT) students at King Saud University (KSU) in Saudi Arabia. Material and Methods This cross-sectional study involved 153 PT students studying at KSU between January and March 2023. The participants completed an online questionnaire, a Maslach Burnout Inventory, and a Brief Resilience Scale. Results Low-to-moderate levels of Emotional Exhaustion (EE) were observed in 85% of the participants and high Depersonalization (DP) levels were reported by 34.2%. Female participants reported higher levels of EE and DP, whereas males had a greater prevalence of low Personal Achievement (PA) levels. Approximately 6.5% of the study participants reported high burnout levels (a combination of high DP, high EE, and low PA). Academic stress, followed by sleeping difficulties and changes in the academic year structure, were the most important factors contributing to higher levels of burnout (75.2%, 56.9%, and 43.8%, respectively). Most study participants around (66.0%) reported normal resilience levels. A significant correlation was detected between resilience and 2 domains of burnout (DP and PA), with the correlation being negative and weak for DP and positive and moderate for PA. Conclusions Overall, low-to-moderate levels of burnout were observed among the PT students who took part. Related factors that contributed to burnout were academic stress, sleeping difficulties, and academic year structure. A normal level of resilience was found to be significantly related to DP and PA but not to EE on the burnout subscales. Higher levels of resilience can be considered to play a protective role against burnout among PT students.
Źródło:
Medycyna Pracy. Workers’ Health and Safety; 2024, 75, 4; 343-354
0465-5893
2353-1339
Pojawia się w:
Medycyna Pracy. Workers’ Health and Safety
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fostering sustainable urban development: Integrating school areas to support the city’s green-blue infrastructure
Wspieranie zrównoważonego rozwoju obszarów miejskich: integracja obszarów szkolnych na rzecz wspierania zielono-niebieskiej infrastruktury miasta
Autorzy:
Sutkowska, M.
Stefańska, A.
Vaverkova, M.D.
Matsui, Y.
Powiązania:
https://bibliotekanauki.pl/articles/28765636.pdf
Data publikacji:
2024
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Źródło:
Acta Scientiarum Polonorum. Architectura; 2024, 23; 12-31
1644-0633
Pojawia się w:
Acta Scientiarum Polonorum. Architectura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of Brucella melitensis from camel’s blood by vitek2 and real time polymerase chain reaction
Autorzy:
Manivannan, Kavitha
Ramasamy, Malathi
Sundaresan, Uma
Moustafa, Samar M.
Sherloumay
Mariyam, Safna
Powiązania:
https://bibliotekanauki.pl/articles/38695730.pdf
Data publikacji:
2024-03-30
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
Brucella melitensis
brucellosis
camels
conventional PCR
RT-PCR
serological assays
Opis:
Introduction and aim. Brucellosis is a zoonotic disease. Experimental clinical and laboratory diagnosis is still facing problems in identifying the organism. The present study will diagnose a Brucella infection in camel blood in Qatar using serological assays. Isolation and identification were performed on a camel blood sample. Brucella in bacterial isolates was determined by real-time polymerase chain reaction (RT-PCR) as a gold standard test. Material and methods. A total of 220 samples, 200 random serum samples, and 20 EDTA blood samples were selected among the above-mentioned random samples, and 20 serum samples from camel handlers were collected from Al Shahaniya province, Qatar. The Rose Bengal test (RBT), buffered antigen plate agglutination test (BAPAT), and enzyme linked immunosorbent assay (cELISA) for the monoclonal antibody in serum samples were performed using commercially available kits. For the molecular detection of Brucella, conventional PCR and real-time PCR (GPS kit) were used for the genus-specific insertion sequence IS711. Brucella melitensis (MICROBOSS Hightech GmbH kit) was used to identify subspecies. Results. The results identified by vitek2 compact (30%) showed B. melitensis in 6 samples out of 20 isolates. Both conventional (66.67%) and RT-PCR (83.33%) analyses supported this, demonstrating the presence of Brucella. These tests also showed that Brucella species were present in Rose Bengal 182/200 (91%), BAPAT 182/200 (91%), and cELISA (90%) 180/200 in camel serum. Conclusion. To conclude, the prevalence of brucellosis in dromedary camels is higher in this region, and as a matter of urgency, measures should be taken to control the disease.
Źródło:
European Journal of Clinical and Experimental Medicine; 2024, 22, 1; 94-101
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morbidity cost and willingness to pay for healthcare insurance among wheat farmers in Jigawa State of Nigeria
Autorzy:
Sadiq, M.S.
Ahmad, M.M.
Gama, E.N.
Sambo, A.A.
Powiązania:
https://bibliotekanauki.pl/articles/29430964.pdf
Data publikacji:
2024
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Źródło:
Zeszyty Naukowe Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie. Problemy Rolnictwa Światowego; 2024, 24[39], 1; 4-25
2081-6960
Pojawia się w:
Zeszyty Naukowe Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie. Problemy Rolnictwa Światowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przekształcenia klasyki literackiej w XXI wieku: przypadek Anne of Green Gables L.M. Montgomery
Transformations of the Classics in the 21st Century: the Case of L.M. Montgomery’s Anne of Green Gables
Autorzy:
Zabawa, Krystyna
Powiązania:
https://bibliotekanauki.pl/articles/37546944.pdf
Data publikacji:
2024
Wydawca:
Akademia Ignatianum w Krakowie
Tematy:
klasyka literacka
powieść graficzna
Anne of Green Gables
przekształcenia czasu
miejsca
literary classics
a graphic novel
tranformations of place
time
characters
Opis:
Klasyka literacka jest ponadczasowa z definicji, ale paradoksalnie również przechodzi przemiany w czasie dzięki niezliczonym adaptacjom. Jednym z interesujących zjawisk kultury XXI w. jest popularność powieści graficznych opartych na tekstach klasyki. Przykłady można mnożyć. W kręgu literatury anglojęzycznej swoich adaptacji doczekały się m.in. powieści Jane Austen, Josepha Conrada, Charlesa Dickensa, C.S. Lewisa, Virginii Woolf. Moje analizy w tym artykule skupiają się na klasycznej powieści Anne of Green Gables (1908) kanadyjskiej pisarki L.M. Montgomery i opartej na niej powieści graficznej pod tym samym tytułem, stworzonej przez M. Marsden i B. Thummler (2017). W tym studium przedstawione zostały sposoby, w jaki klasyka literacka sprzed wieku jest przekształcana we współczesną powieść graficzną oraz główne kierunki zmian. Podstawowe problemy badawcze brzmią: W jaki sposób kształtowany jest czas akcji w oryginale oraz w powieści graficznej? W jaki sposób zmienia się (jeśli się zmienia) kreacja miejsca akcji, bohaterowie, fabuła? Celem artykułu jest analiza tych wszystkich przekształceń, ustalenie rządzących nimi zasad oraz ich wpływu na wymowę utworu.
The literary classics is timeless by definition but paradoxically it changes in time in its countless adaptations into different media. One of the interesting phenomena of the 21st century is the popularity of graphic novels which are based on the classic. Examples can be multiplied. If the English classic is taken into account, several adaptations of the novels by Jane Austen, Joseph Conrad, Charles Dickens, C.S. Lewis, Virginia Woolf may be mentioned among the others. My research is focused on one of the classical novels by the Canadian writer L.M. Montgomery Anne of Green Gables (1908) and the graphic novel (with the same title) based on it (with the same title) by M. Marsden and B. Thummler (2017). This is a case study presenting the transformation of the classic novels into graphic ones and taking into consideration especially times when the novels were written and what has been changed in their graphic adaptations of the 21st century. The main research questions are: how the times are represented both in the original novel and its contemporary transformation? How the setting, characters and plot are transformed (if they are)? The aim of the paper is to analyse all these transformations, define their main features and to find out their influence on the original message of the novel.
Źródło:
Perspektywy Kultury; 2024, 45, 2; 313-326
2081-1446
2719-8014
Pojawia się w:
Perspektywy Kultury
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Time of Agreements in Joseph Conrad’s An Outcast of the Islands
Czas umów w Wyrzutku Josepha Conrada
Autorzy:
Szczepan-Wojnarska, Anna Marta
Powiązania:
https://bibliotekanauki.pl/articles/37549330.pdf
Data publikacji:
2024
Wydawca:
Akademia Ignatianum w Krakowie
Tematy:
czas
Joseph Conrad
umowa
John M. McTaggart
hazard
time
agreement
gambling
Opis:
This article examines the temporality of human agreements on the basis of Joseph Conrad’s novel, An Outcast of the Islands, and in reference to John M. Taggart’s thesis about the unreality of time. The execution of contracts is a mastery over time, but since, as Conrad’s contemporary, the philosopher J.M. McTaggart proclaimed in his work The Unreality of Time, time is not part of the real world, contracts cannot be so either. Commercial contracts, civil contracts, gentlemen’s agreements, and marriage contracts – although they concern very specific matters that are fraught with consequences and they are a kind of farce precisely because of their temporal aspect. Making alliances and taking up responsibilities turns out to be, in the light of McTaggarts’s theory, not only a contractual, but also hazardously ambivalent action, because it never stops time, nor does it lead to eternal duration, but contradicts it entirely. From such a perspective, knowledge of the explicit and hidden terms of the contract becomes more important than the struggle for its duration.
Artykuł bada temporalny aspekt umów międzyludzkich w powieści Josepha Conrada Wyrzutek oraz w nawiązaniu do tezy Johna M. Taggarta o nierealności czasu. Realizowanie kontraktów jest formą panowania nad czasem. Skoro jednak, jak głosił współczesny Conradowi brytyjski filozof John M. McTaggart w dziele Nierzeczywistość czasu, czas nie jest częścią realnego świata, to kontrakty zawierane między ludźmi również nie są rzeczywiste. Kontrakty handlowe, umowy cywilnoprawne, dżentelmeńskie i małżeńskie, choć dotyczą spraw bardzo ważnych i brzemiennych w skutki, są swoistą farsą właśnie ze względu na swój aspekt czasowy. Zawieranie sojuszy i branie na siebie odpowiedzialności za ich realizację okazuje się w świetle teorii McTaggarta działaniem nie tylko umownym, ale także niebezpiecznie ambiwalentnym.
Źródło:
Perspektywy Kultury; 2024, 45, 2; 245-258
2081-1446
2719-8014
Pojawia się w:
Perspektywy Kultury
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A COLREGs-compliant decision support tool to prevent collisions at sea
Autorzy:
Martelli, M.
Žuškin, S.
Zaccone, R.
Rudan, I.
Powiązania:
https://bibliotekanauki.pl/articles/24201449.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
analysis of ship collision
collision avoidance
collision avoidance decision making
collision avoidance system
anti-collision maneuvering
autonomous control unit
autonomous ship
autonomous navigation system
Opis:
Groundings and collisions still represent the highest percentage of marine accidents despite the current attention on Maritime Education and Training and the improvement of sensor capability. Most of the time, a collision is caused by a human error with consequences ranging from moderate to severe, with a substantial impact on both environment and life safeguarded at sea. In this paper, a brief statistical data regarding human element as a root cause of marine incidents together with collision regulations misunderstanding is presented as a background chapter. Furthermore, the present work discusses a decision support system architecture to suggest an appropriate action when the risk of a potential collision is detected. The proposed architecture system is based on various modules integrated with proper sensor input data regarding the surrounding navigation area. As a result, the tool can support the Officers of Watch in the decision-making process providing an early suggestion in compliance with the COLlision REGulations. The proposed system is intended to be used onboard independently from the degree of automation of the ship, and it is based on AIS, which is mandatory, making it widely applicable. The proper use of the system can considerably reduce the number of collisions, as demonstrated by the obtained results.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 2; 347--353
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A pedological study attempting to combine soil taxonomy and WRB classification systems
Autorzy:
Zayed, Adel M.A.
Abdel Ghaffar, Mamdouh K.
Ali, Faiza S.
Ewida, Esmail H.
Powiązania:
https://bibliotekanauki.pl/articles/27312660.pdf
Data publikacji:
2023
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
North-East Nile Delta
pedological study
physiographic units
soil classification
Opis:
The study area is located in the North-Eastern part of the Nile Delta, northern of Ismailia canal and western Suez Canal. It comprises an area of about 3,058.8 km 2 (728,285.38 feddans). This work aims to identify the main physiographic units and its features, as well as emphasise the importance of combining soil taxonomy (2014) and WRB classification (2022) systems. Two main physiographic units were distinguished in the study area according to the previous studies, interpretation of satellite image and digital elevation model (DEM) as well as field observations; the first consists of fluvio-marine flats and the second river terraces which include the fluvial and deltaic origin. According to field morphological descriptions as well as chemical and physical analyses, representative profiles are classified by using both Soil Taxonomy and WRB systems. The current study is the third manuscript to emphasise the importance of using both systems together in order to obtain maximum possible characteristics of the earth. Below are examples that illustrate this importance. Soils of profile No. 4 which represent the fluvio-marine soils are classified according to soil taxonomy as follows: Typical Haplosalids, fine silty, mixed, thermic. While these soils are classified according to WRB as follows: Fluvic Sodic Solonchaks (Siltic/Loamy/Clayic, Chloridic, Evapocrustic, Ochric, Hypersalic). Soils of gypsiferous which represent soils of profile No. 6 are classified according to Soil Taxonomy as: Gypsic Aquisalids, loamy over sandy, mixed, thermic, whereas the application of the WRB system reveals the following: Fluvic Calcic Gypsic Sodic Gleyic Solonchaks (Loamic, Chloridic, Hypersalic).
Źródło:
Journal of Water and Land Development; 2023, 57; 197--203
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Agresja Rosji na Ukrainę i perspektywy jej akcesji do struktur euroatlantyckich
Russia’s aggression against Ukraine and the prospects for its accession to the Euro-Atlantic structures
Autorzy:
Fiszer, Józef M.
Powiązania:
https://bibliotekanauki.pl/articles/31233344.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
aggression
Ukraine
Russia
accession
European Union
NATO
agresja
Ukraina
Rosja
akcesja
Unia Europejska
Opis:
Jak pokazuje tytuł, celem artykułu jest agresja Rosji na Ukrainę w dniu 24 lutego 2022 roku oraz analiza jej przyczyn oraz ukazanie perspektyw dla członkostwa Ukrainy w strukturach euroatlantyckich, czyli w Unii Europejskiej i NATO. Niewypowiedziana wojna Rosji z Ukrainą trwa de facto od 2014 roku, czyli od bezprawnego przyłączenia (aneksji) Półwyspu Krymskiego do Federacji Rosyjskiej. Od tego momentu, a faktycznie już od 2008 roku, tzn. od agresji Rosji na Gruzję, Zachód na czele z USA obiecuje Ukrainie członkostwo w NATO i Unii Europejskiej, ale do dnia dzisiejszego nie rozpoczęto formalnych negocjacji w tym celu. Autor w artykule tym próbuje odpowiedzieć na pytania, dlaczego tak się dzieje i czy agresja Rosji na Ukrainę stanie się akceleratorem jej członkostwa w strukturach euroatlantyckich? Tezą główną jest tutaj konstatacja, że agresja Rosji na Ukrainę tylko w ograniczonym stopniu wpłynie na proces jej akcesji do NATO i Unii Europejskiej. Natomiast proces ten z pewnością przyspieszy dopiero zakończenie wojny, zwłaszcza zwycięstwo Ukrainy i klęska Rosji.
As the title suggests, the article aims to analyse Russia’s aggression against Ukraine on 24 February 2022 and its causes, as well as to show the prospects for Ukraine’s membership in the Euro-Atlantic structures, i.e. the European Union and NATO. The undeclared war between Russia and Ukraine has been fought de facto since 2014, i.e. since the Russian Federation illegally annexed the Crimean Peninsula. Since then, or actually even since 2008, i.e. since Russia’s aggression against Georgia, the West led by the USA has been promising Ukraine membership in NATO and the European Union; however, formal negotiations to achieve this goal have not been opened yet. In the article, the author tries to answer the questions why this is happening and whether Russia’s aggression against Ukraine will become an accelerator of its membership in the Euro-Atlantic structures. The main thesis is that Russia’s aggression against Ukraine will only have a limited impact on its accession to NATO and the European Union. However, the process will certainly speed up after the war ends, especially when Ukraine wins the war and Russia suffers a defeat.
Źródło:
Rocznik Integracji Europejskiej; 2023, 17; 127-142
1899-6256
Pojawia się w:
Rocznik Integracji Europejskiej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An analysis of the public distribution system in rural Haryana, India
Analiza publicznego systemu dystrybucji na obszarach wiejskich indyjskiego stanu Haryana
Autorzy:
Devi, S.
Siwach, M.
Powiązania:
https://bibliotekanauki.pl/articles/2191580.pdf
Data publikacji:
2023
Wydawca:
Akademia Bialska im. Jana Pawła II
Tematy:
India
Haryana
rural area
public distribution system
food safety
Opis:
Subject and Purpose of the work: The present paper aims to analyze the functioning and coverage of the public distribution system in rural Haryana, India. Materials and methods: For analyses, secondary data were taken from various government reports like the Economic Survey of Haryana, Economic Survey of India, Census of India, Food and Supply Department, Haryana, etc. The analyses were conducted using descriptive statistics. Results: The study’s findings revealed that the public distribution system facilitates 51.45 percent of the total rural population of Haryana. As Per the guidelines of the National Food Security Act (NFSA) 2013, 75 percent of the rural population should be covered by the States under the benefits of the public distribution system. The public distribution system operates in the State with a vast network of Fair Price Shops (FPS) and a well-organized structure. The study revealed that the ratio of the beneficiaries of PDS to the FPS in Haryana is quite satisfactory and meets the criteria fixed by the Food and Supply Department of India. Conclusions: The State of Haryana does not meet the criteria of NFSA, 2013. One primary reason is that a large part of the population falls under the APL category, which has been excluded from the benefits of PDS after the implementation of NFSA, 2013
Źródło:
Economic and Regional Studies; 2023, 16, 1; 118-132
2083-3725
2451-182X
Pojawia się w:
Economic and Regional Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An efficient microgrid model based on Markov fuzzy demand-side management
Autorzy:
Jabash Samuel, G. K.
Sivagama Sundari, M. S.
Bhavani, R.
Jasmine Gnanamalar, A.
Powiązania:
https://bibliotekanauki.pl/articles/27311444.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
smart grid
fuzzy Markov decision process
power scheduling
operating cost
nonlinear model predictive control
inteligentna sieć
planowanie mocy
koszt operacyjny
proces decyzyjny Markowa rozmyty
regulator predykcyjny nieliniowego modelu
Opis:
Today’s electricity management mainly focuses on smart grid implementation for better power utilization. Supply-demand balancing, and high operating costs are still considered the most challenging factors in the smart grid. To overcome this drawback, a Markov fuzzy real-time demand-side manager (MARKOV FRDSM) is proposed to reduce the operating cost of the smart grid system and maintain a supply-demand balance in an uncertain environment. In addition, a non-linear model predictive controller (NMPC) is designed to give a global solution to the non-linear optimization problem with real-time requirements based on the uncertainties over the forecasted load demands and current load status. The proposed MARKOV FRDSM provides a faster scale power allocation concerning fuzzy optimization and deals with uncertainties and imprecision. The implemented results show the proposed MARKOV FRDSM model reduces the cost of operation of the microgrid by 1.95%, 1.16%, and 1.09% than the existing method such as differential evolution and real coded genetic algorithm and maintains the supply-demand balance in the microgrid.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2023, 71, 3; art. no. e145569
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the effects of recycling on process control
Autorzy:
Silva, Cássio R.A.
Panuci, Victor C.
Coutinho, Monica R.
Conceição, Wagner A.S.
Andrade, Cid M.G.
Powiązania:
https://bibliotekanauki.pl/articles/27315644.pdf
Data publikacji:
2023
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
level control
control structure
decoupled tanks
cycle
Arduino
Opis:
The union of different devices in order to obtain a specific response for a process is commonly called a control system. For a control system, it is necessary to have one or more controllers. Among the most used in the industrial sector are the PID and PI controllers. Next to these controllers is the control software. Scilab is a good example of control software. It is characterized as free code software, with no cost for its acquisition, in addition to having a large computational power and integrated tools, such as Xcos, intended for modeling and simulation. For the union with Scilab, there is Arduino. Such a mixture can be used, for example, to control liquid levels in tanks. In this context, the present work aims to study the tank-level control system based on PID and PI controllers through the union between Scilab and Arduino. Phenomenological models were developed based on closed-loop control (feedback control system) of the process with two tanks not coupled with recycle. Furthermore, for comparison purposes, two approaches were used for each process: one considering the saturation of the manipulated variable and the other without the presence of such saturation. At first, there was a need to implement an anti-windup system. For tuning the controller parameters, the ISE method was used, executed through a programming code developed in Scilab. The parameters found for the two systems were tested on a made-up experimental bench. Therefore, using the block diagrams and the method here called “ISE method”, satisfactory values were obtained for the control parameters. These were ratified in the tests carried out in the experimental module. Level control was achieved with greater prominence for the PI controller since there is one less parameter to be tuned and processed by the system. This controller provided results close to the PID controller for cycles up to 50%. In general, the PI controller showed maximum response deviations smaller than the PID, such as deviations of 1.55 cm and 2.40 cm, respectively, for the case with 75% recycle. It was also clear the influence of the saturation of the manipulated variable on the system response, but not on the tuning of the controller parameterseters.
Źródło:
Polish Journal of Chemical Technology; 2023, 25, 2; 43--55
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Approbation of Emergency Education Strategies for Internally Displaced Ukrainian Children under the Martial Law Conditions
Autorzy:
Kolomiiets, Alla M.
Gromov, Ievgen V.
Brovchak, Liudmyla S.
Babchuk, Yuriy M.
Tertychna, Taisiia D.
Powiązania:
https://bibliotekanauki.pl/articles/2233949.pdf
Data publikacji:
2023-06-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
emergency education
emergency
internally displaced person
martial
law
psychosocial intervention
recreational therapy
Opis:
The study aimed to test the first two stages of the simplified model of emergency education (elaborated by P. Aguilar, G. Retamal, and K. Triplehorn) under martial law conditions on the relatively safe territory of Ukraine. The study embraced 52 children from internally displaced families, 6 teachers, 3 practical psychologists and 12 pedagogical university students. Work with children was organised by students’ self-government members under the guidance of pedagogical teachers and professional psychologists. Based on the emergency education model, the authors developed a method of organising recreational therapy for internally displaced school-aged children evacuated from war zones. In order to assess the effectiveness of the organised activities, the «Test of differential self-assessment of functional state» was used to determine the level of children’s indices of well-feeling, activity and mood (WAM-questionnaire). The results of the surveys before and after the experiment showed that the developed method of organising the recreational therapy of internally displaced children contributed to significant positive changes in their emotional, psychological and functional state. The reported redistribution of indices clearly illustrates the significance of those changes.
Źródło:
The New Educational Review; 2023, 72; 49-65
1732-6729
Pojawia się w:
The New Educational Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of dental professionals’ maintenance of management practices developed and incorporated during COVID-19 pandemic – a cross-sectional study
Autorzy:
Singh, R.
Sekhon, T.
Sekhon, S.
Kumar, M.
Nirola, A.
Gambhir, R.S.
Powiązania:
https://bibliotekanauki.pl/articles/28765158.pdf
Data publikacji:
2023
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Opis:
Background. COVID-19 pandemic has been a source of emerging public health problems for the past few years. Due to its contagious nature, health care professionals especially dentists, incorporated various modifications in their practices to prevent themselves and their patients from the risk of getting infected. Objective. The present study aims to assess whether dental professionals are still continuing with those modifications in practice in current times. Materials and Methods. The present study was conducted on 415 subjects after getting due approval from concerned authorities and consent from the subjects. Systematic random sampling methodology was employed for selection for study sample. The study employed a self-constructed questionnaire which was divided into 2 parts and information regarding demographic profile, practice modifications and safety protocols was gathered from subjects. Statistical analysis was conducted using Chi-square test and multiple regression analysis. Results. Only 8.6% of subjects were currently continuing with their all previous practice modifications. A vast majority of subjects (83.8%) were not deferring treatment of patients showing suspicious symptoms. Approximately 89% of subjects were not sanitizing the operating area at the end of the working day. More than two-thirds (76.4%) of the subjects stated that the pandemic was over. Female gender (OR:1.67) and high level of education (OR:2.45) had an important effect on the continuation of practice modifications. Conclusion. Very few subjects were adhering to all practice modifications previously incorporated. Dental professionals should not let their guard down even if COVID-19 cases have reduced considerably. The information collected will be useful for the dental community and further studies should be carried out.
Źródło:
Roczniki Państwowego Zakładu Higieny; 2023, 74, 3; 309-314
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 10731

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