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Wyświetlanie 1-15 z 104
Tytuł:
(review) A. Bronicki. Pierwsi pasterze III tysiąclecia p.Ch. Groby podgrupy wschodniolubelskiej kultury amfor kulistych. Obrządek pogrzebowy. Chronologia. [The first shepherds of the 3rd millennium B.C.]. Chełm 2021: Muzeum Ziemi Chełmskiej im. Wiktora Ambroziewicza w Chełmie, 284 pages
Autorzy:
Sieradzka, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/38606169.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Rzeszowski. Instytut Archeologii Uniwersytetu Rzeszowskiego. Muzeum Okręgowe w Rzeszowie
Źródło:
Analecta Archaeologica Ressoviensia; 2022, 17; 111-112
2084-4409
Pojawia się w:
Analecta Archaeologica Ressoviensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Leveraging Transfer Learning to Identify Food Categories
Autorzy:
Kolla, J. V. V.
Vemula, P. Ch.
Chakravarthy, S.
Naidu, B. S.
Patibandla, D.
Powiązania:
https://bibliotekanauki.pl/articles/2023418.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
convolutional neural networks
transfer learning
domain similarity
fine-tuning
konwolucyjne sieci neuronowe
uczenie się przez przeniesienie
podobieństwo dziedzin
dostrajanie
Opis:
In today’s scenario, recognition of pictured food dishes automatically has significant importance. During the COVID-19 pandemic, there was a decline in people visiting restaurants for their dietary requirements. So many restaurants started offering their services online. This situation caused a demand for better categorization of food into various categories on a large scale by companies that facilitated these services. It is challenging to congregate a large dataset of food categories, so it is complex to build a generalized architecture. To solve this issue, In this paper, domain-specific transfer learning is used to build the model using some standard architectures like VGGNET, RESNET, and EFFICIENTNET family, which are trained on popular benchmark datasets such as IMAGENET, COCO, etc. The similarity between the source and target datasets is calculated to find the best source dataset, and the one with the highest similarity is chosen for transfer learning. The solution proposed in this paper outperforms some of the existing works on categorizing food items.
Źródło:
Advances in Science and Technology. Research Journal; 2021, 15, 4; 101-109
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An extended dynamic thermal model of a permanent magnet excited synchronous motor
Autorzy:
Mbo'o, Ch. P.
Hameyer, K.
Powiązania:
https://bibliotekanauki.pl/articles/140883.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
thermal modeling
thermal network
finite element method
iron losses
permanent magnet excited synchronous machine (PMSM)
Opis:
The purpose of this paper is to develop a dynamic thermal model of a permanent magnet excited synchronous motor (PMSM). The model estimates the temperature at specific points of the machine during operation. The model is implemented using thermal network theory, whose parameters are determined by means of analytical approaches. Usually thermal models are initialized and referenced to room temperature. However, this can lead to incorrect results, if the simulations are performed when the electrical machine operates under “warm” conditions. An approach is developed and discussed in this paper, which captures the model in critical states of the machine. The model gives feedback by online measured quantities to estimate the initial temperature. The paper provides an extended dynamic thermal model, which leads to a more accurate and more efficient thermal estimation.
Źródło:
Archives of Electrical Engineering; 2013, 62, 3; 375-386
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Theoretical evaluation of ultrasonic velocities of binary liquid mixtures of 1-bromopropane in chlorobenzene at 303.15, 308.15, 313.15 and 318.15 K
Autorzy:
Babu, Ch. P.
Kumar, G. P.
Nagarjun, B.
Samatha, K.
Powiązania:
https://bibliotekanauki.pl/articles/412079.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
ultrasonic velocities
molecular interactions
1-bromopropane and chlorobenzene
Opis:
Theoretical velocities of binary liquid mixtures of 1-bromopropane with chlorobenzene at 2 MHz and four different temperatures 303.15, 308.15, 313.15 and 318.15 K, have been evaluated as a function of concentration and temperature. The experimental values are compared with theoretical models of liquid mixtures such as Nomoto, Van Dael-Vangeel, Impedance Relation, Rao’s Specific Velocity Method, Junjie’s relations and Free Length Theory. In the chosen system there is a good agreement between experimental and theoretical values calculated by Nomoto’s theory. The deviation in the variation of U2exp/ U2imx from unity has also been evaluated for explaining the non ideality in the mixtures. The results are explained in terms of intermolecular interactions occurring in these binary liquid mixtures.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 11, 1; 9-17
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Acoustical studies of binary liquid mixtures of p-chlorotoluene in benzene at different temperatures
Autorzy:
Kumar, G. P.
Babu, Ch. P.
Samatha, K
Jyosthna, A. N.
Showrilu, K.
Powiązania:
https://bibliotekanauki.pl/articles/412275.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
ultrasonic velocity
thermodynamic parameters
p-chlorotoluene
molecular interactions
Opis:
Ultrasonic velocities (U), densities (ρ), and coefficient of viscosities (η) are measured for binary mixtures containing (i) p-chlorotoluene and (ii) benzene at 303.15 K, 308.15 K, 313.15 K and 318.15 K to understand the molecular interaction. Various acoustical parameters such as adiabatic compressibility (βad), free length (Lf), acoustic impedance (Z), free volume (Vf), molar volume (Vm), Rao’s constant (R), Wada’s constant (W) and internal pressure (πi), are calculated from the measured values of U, ρ, and η. The trend in acoustical parameters also substantiates to asses strong molecular interactions.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 10; 25-37
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some physical properties of ginko nuts and kernels
Autorzy:
Ch'ng, P.E.
Abdullah, M.H.R.O.
Mathai, E.J.
Yunus, N.A.
Powiązania:
https://bibliotekanauki.pl/articles/24875.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Opis:
Some data of the physical properties of ginkgo nuts at a moisture content of 45.53% (±2.07) (wet basis) and of their kernels at 60.13% (± 2.00) (wet basis) are presented in this paper. It consists of the estimation of the mean length, width, thickness, the geometric mean diameter, sphericity, aspect ratio, unit mass, surface area, volume, true density, bulk density, and porosity measures. The coefficient of static friction for nuts and kernels was determined by using plywood, glass, rubber, and galvanized steel sheet. The data are essential in the field of food engineering especially dealing with design and development of machines, and equipment for processing and handling agriculture products.
Źródło:
International Agrophysics; 2013, 27, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Controllable preparation of highly active horseradish peroxidase-gold nanoparticle bionanoconjugate
Autorzy:
Zhang, P.
Liu, Ch.
Song, S.
Peng, Ch.
Powiązania:
https://bibliotekanauki.pl/articles/778931.pdf
Data publikacji:
2012
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
horseradish peroxidase
gold nanoparticles
bionanoconjugate
Opis:
A novel method of immobilizing horse radish peroxidase enzyme (HRP) onto the surface of gold nanoparticles (GNPs) was developed. As a result, a high-activity bionanoconjugates was obtained through utilizing the biotin-streptavidin (SA) system. The HRP-SA-GNP bionanoconjugate with high activity was conveniently prepared through the biotin- avidin system. Compared with the HRP-GNP bioconjugate prepared through the traditional electrostatic absorption method, the enzyme activity per GNPs of this new bionanoconjugate was enhanced by 10 times. Moreover, the enzyme activity of this bionanoconjugate was controllable. The above method of bionanoconjugation preparation has promising applications In the fi elds including preparing highly active bio-nanoprobe and immobilized enzyme.
Źródło:
Polish Journal of Chemical Technology; 2012, 14, 4; 57-60
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CO2-CH4 mixtures phase equilibrium analysis
Autorzy:
Dorosz, P.
Kopczyński, A.
Wojcieszak, P.
Powiązania:
https://bibliotekanauki.pl/articles/1818158.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
natural gas
mixtures
phase equilibrium
Opis:
Carbon dioxide removal is crucial step during natural gas processing, as CO2 is highly corrosive in presence of water. There are natural gas sources around the world with very high carbon dioxide content that cannot be developed. In order to design the effective CO2 removal process, properties of methane-carbon dioxide mixtures has to be determined. Authors have investigated thermodynamic properties of CH4-CO2 mixtures. Extended Peng-Robinson equations were used to determine the phase equilibrium of CH4-CO2 systems of different compositions.
Źródło:
Zeszyty Energetyczne; 2017, 4; 89--97
2658-0799
Pojawia się w:
Zeszyty Energetyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetization Relaxation in CdMnS
Autorzy:
Witowski, A. M.
Kutter, Ch.
Mac, W.
Wyder, P.
Powiązania:
https://bibliotekanauki.pl/articles/1929759.pdf
Data publikacji:
1993-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
76.30.Fc
Opis:
The static magnetization measurements and relaxation of magnetization data for two Cd$\text{}_{1-x}$Mn$\text{}_{x}$S samples with different composition are presented. The magnetization is described by the modified Brillouin function. The magnetization relaxation shows unusual composition dependence. This behavior is explained by cross-relaxation to the unknown fast relaxing centers introduced during growth.
Źródło:
Acta Physica Polonica A; 1993, 84, 4; 798-800
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Burnout syndrome impacts on quality of life in nursing professionals: The contribution of perceived social support
Autorzy:
Fradelos, E.
Mpelegrinos, S.
Mparo, Ch.
Vassilopoulou, Ch.
Argyrou, P.
Tsironi, M.
Zyga, S.
Theofilou, P.
Powiązania:
https://bibliotekanauki.pl/articles/1916393.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
burnout
quality of life
social support
nursing staff
Opis:
Purpose: To examine the impacts of burnout that has in health-related quality of life (QOL) in nursing staff in Greece. The association of social support with burnout and QOL is also investigated. Materials and methods: Individuals working in Mental and General Hospitals in the broader area of Athens participated in this study (N.139). The measurement tools include a) the Maslach Burnout Inventory (MBI), b) the SF-36 Health Survey and c. the Multidimensional Scale of Perceived Social Support. Burnout and QOL are expected to be related to the evaluation of social environment. Results: The results indicated the impacts that burnout has on quality of life and the positive effect of social support for nursing professionals in the levels of burnout. Conclusions: There is an association between burnout, quality of life and social support. Social support and socio-demographic factors appear to affect the levels of burnout to Psychiatric and General Hospital.
Źródło:
Progress in Health Sciences; 2014, 4, 1; 102-109
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nutritional habits in the elderly
Autorzy:
Kourkouta, L.
Ouzounakis, P.
Monios, A.
Iliadis, Ch.
Powiązania:
https://bibliotekanauki.pl/articles/1917821.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
diet
dietary habits
elderly
Opis:
Introduction: Aging is accompanied by several physiological and psychological changes in the organism of an individual (e.g., decreased sense of taste and smell, disruption of satiety, depression), which affect the nutritional intake. Purpose: The purpose of this retrospective study is to highlight the nutritional habits of elderly people. Materials and methods: Extensive review of the recent literature in electronic databases (Pub med, Google scholar) and journals. Exclusion criterion for the articles was the language than the Greek and English. Results: The increase life expectancy is important to be accompanied by physical and mental health, quality of life and, where possible, from participation in social, economic, cultural and spiritual life. Adopting healthy dietary patterns, combined with daily physical activity, and factors such as avoiding smoking, could help considerably in reaching these goals. The physical and psychological changes occurring during aging may adversely affect nutritional status. Instead, a proper diet can positively influence the physical and emotional state of elderly people. Conclusions: Diet and generally nutrition habits of the elderly play an important role in their health.
Źródło:
Progress in Health Sciences; 2016, 6(2); 155-159
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
AIDS and nutrition in patients
Autorzy:
Kourkouta, L.
Monios, A.
Iliadis, Ch.
Ouzounakis, P.
Powiązania:
https://bibliotekanauki.pl/articles/1918438.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
AIDS
nutrition
immune system infection
immunosuppressant
Opis:
Introduction: AIDS is a viral infection that particularly affects the nutritional status of patients by complicating the absorption of nutrients and their metabolism. Purpose: The purpose of this retrospective study is to highlight the contribution of nutrition to the wellness of people with HIV in all stages of the disease. Review Methods: The methodology used to select the information used in this study includes review studies and research in leading databases such as PUBMED, MEDLINE, and IATROTEK. The selection criterion of the articles was the Greek and English language.Results: The real goal of the nutritional assessment of patients with AIDS is to improve their ability to consume a sufficient quantity and variety of foods in order to meet their nutritional needs. The evaluation of dietary intake assesses the adequacy of food and nutrients consumed. It includes assessing the dietary patterns, frequency of meals, and the factors that affect food choice. Conclusions: Maintaining a good nutritional status has a significant impact on the functioning of the immune system and the overall health of people living with HIV / AIDS.
Źródło:
Progress in Health Sciences; 2017, 7(1); 182-186
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vision problems in children - a review
Autorzy:
Kourkouta, L.
Frantzana, E.
Iliadis, Ch.
Ouzounakis, P.
Monios, A.
Powiązania:
https://bibliotekanauki.pl/articles/1918528.pdf
Data publikacji:
2017-11-12
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
vision problems
children
Opis:
Introduction: A vision problem is a condition which involves not only visual difficulty but also blindness. Purpose: The purpose of this short review study is the early recognition of vision problems in children, the proper treatment as well as their prevention. Materials and methods: The material of the study has been recent articles on the subject that have been found mainly in the electronic database Medline, (HEAL-Link), with the following keywords: children, vision impairment, blindness, treatment, prevention. Review: A high risk group of individuals that frequently presents ophthalmic severe lesions leading to blindness consists of children with prenatal and perinatal adverse effects. Conclusions: Education gives the opportunity of co-existence between the blind and people who are able to see. This is the path to social inclusion of individuals with vision problems. Moreover, it is estimated these two groups would have more points in common than differences between them through this experience.
Źródło:
Progress in Health Sciences; 2017, 7(2); 80-84
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 104

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