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Wyświetlanie 1-15 z 24
Tytuł:
Workplace Violence: A Study of Turkish Workers
Autorzy:
Aytac, S.
Bozkurt, V.
Bayram, N.
Yildiz, S.
Aytac, M.
Akinci, F. S.
Bilgel, N.
Powiązania:
https://bibliotekanauki.pl/articles/90325.pdf
Data publikacji:
2011
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
workplace violence
physical violence
psychological violence
Turkey
Opis:
This research was conducted to address the experience of workplace violence of Turkish workers from different sectors and to investigate the impact of the exposed violence on their psychological well-being. Data were collected anonymously with printed questionnaires from the volunteer participants and depended on self-reporting. The response rate was 79.0% (1708/2161). The prevalence of workplace violence was found to be 44.8%. The most common type was verbal violence together with mobbing (bullying). Victims of physical violence were mostly males, whereas females were found to be victims of verbal, psychological and sexual violence. Most cases did not result in legal action and the victims remained silent. Psychological well-being of exposed workers in terms of depression, anxiety and stress seemed to deteriorate. Workplace violence remains a silent epidemic in Turkey. Preventive measures against workplace violence and social support for violated workers do not exist.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2011, 17, 4; 385-402
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of Artificial Neural Networks for Modelling of Seam Strength and Elongation at Break
Zastosowanie sztucznych sieci neuronowych dla modelowania wytrzymałości szwów i wydłużenia przy zerwaniu
Autorzy:
Yildiz, Z.
Dal, V.
Ünal, M.
Yildiz, K.
Powiązania:
https://bibliotekanauki.pl/articles/232292.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:
textile fabrics
artificial neural networks
seam strength
modeling
tekstylia
sztuczne sieci neuronowe
szew wytrzymałościowy
modelowanie
wydłużenia przy zerwaniu
Opis:
The strength and elongation at break of a seam are very important characteristics of comfort clothing. Optimum seam strength must be durable enough to do our daily activities easily. Some parameters such as the type and count of the sewing yarn, the seam density, the size of the sewing needle, and type of stitch affecting the strength and elongation at break of the seam. In this study two kinds of fabrics (gabardine and poplin) were chosen for experiments. As sewing parameters, two different types of stitches (plain and chain stitch), five seam densities (3, 4, 5, 6 and 7 seams/cm), two kinds of sewing needles (SPI and SES), and three kinds of sewing yarns (cotton, core-spun, and PBT yarns) were used in experiments. With these materials 120 different seam variations were developed. Each sampless seam strength was tested according to the ISO 13935-1[1] standard using an Instron 4411 instrument. After the testing process, an artificial neural network model was developed to predict the seam strength and elongation at break values. The test results were applied to multi layer perceptron and radial basis function neural network modeling. These two neural network types were compared in terms of the accuracy of the modeling system. The results show that the artificial neural network model produces reliable estimates of seam strength and elongation at break (R=1, MSE=3.33E-05).
Wytrzymałość szwu i wydłużenie przy zerwaniu są bardzo ważnymi cechami ubrań z punktu widzenia wygody noszenia. Optymalna wytrzymałość szwu musi być wystarczająco duża, aby z łatwością wykonywać nasze codzienne czynności. Niektóre z parametrów, takich jak typ oraz numer przędzy, gęstość szwu, rozmiar igły do szycia, typ ściegu wpływają na wytrzymałość szwu i wydłużenie przy zerwaniu. Badania przeprowadzono na dwóch rodzajach tkanin (gabardyna i popelina), stosując dwa różne rodzaje szwów (proste i łańcuszkowy), szwy o pięciu gęstościach (3, 4, 5, 6 i 7 szwy/cm), dwa rodzaje igieł (SPI i SES) i trzy rodzaje przędz (bawełniana zwykła, rdzeniowa i przędze PBT), otrzymując 120 wariantów szwów. Wytrzymałość każdej próbki została zbadana zgodnie z normą ISO 13935-1 za pomocą przyrządu Instron 4411. Następnie, opracowano model sztucznej sieci neuronowej w celu przewidzenia wartości wytrzymałości szwów i wydłużenia przy zerwaniu. Wyniki badań zostały przetworzone w wielowarstwowym perceptronie i funkcji radialnej modelowania sieci neuronowej. Obydwa typy sieci neuronowych zostały porównane pod względem dokładności modelowania. stwierdzono, że za pomocą modelu sztucznych sieci neuronowych można uzyskać wiarygodne wyniki (R = 1, MSE = 3.33E-05).
Źródło:
Fibres & Textiles in Eastern Europe; 2013, 5 (101); 117-123
1230-3666
2300-7354
Pojawia się w:
Fibres & Textiles in Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Measurement of Gamma Dose in Radiotherapy Unit
Autorzy:
Akkurt, İ.
Kara, Ü.
Yildiz, M.
Kaya, V.
Powiązania:
https://bibliotekanauki.pl/articles/1402422.pdf
Data publikacji:
2015-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.56.-v
87.55.Qr
Opis:
Cancer is one of the most deadly diseases posing threat for our health. The most important method for eradicating of cancer cells is photoradiotherapy. Electrons accelerated by the accelerator are converted to photons in the process of bremsstrahlung. These photons are focused on diseased cells. Photon leaving accelerator head should assure a given dose intensity in cancer cells. Measuring of beam parameters at apparatus output is essential to determine the dose. In this study, Suleyman Demirel University research and education hospital in radiation Oncology department which has located at 18 MeV accelerator in energy gamma dose was measured.
Źródło:
Acta Physica Polonica A; 2015, 128, 2B; B-367-B-369
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The evaluation of hemostatic dysfunctionand disseminated intravascular coagulationin dairy cows with abomasal displacement
Autorzy:
Maden, M.
Yildiz, R.
Çöl, R.
Arican, M.
Ider, M.
Garip, M.
Tras, B.
Powiązania:
https://bibliotekanauki.pl/articles/2087648.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
DIC
hemostatic dysfunction
LDA
RDA
dairy cow
Źródło:
Polish Journal of Veterinary Sciences; 2018, 21, 4; 769-778
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of tilmicosin and diclofenac sodium combination on cardiac biomarkers in sheep
Autorzy:
Yildiz, R.
Durna Corum, D.
Corum, O.
Ider, M.
Atik, O.
Ok, M.
Uney, K.
Powiązania:
https://bibliotekanauki.pl/articles/16647447.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
cardiotoxicity
diclofenac
H-FABP
sheep
tilmicosin
Opis:
The aim of this study was to investigate the cardiotoxic effect of the combination of tilmicosin and diclofenac sodium in sheep. Thirty-two sheep were used and were randomly divided into four equal groups as tilmicosin (T), diclofenac sodium (D), tilmicosin+diclofenac sodium (TD) and control (C) group. Group T received a single dose of tilmicosin, Group D was administered diclofenac sodium once a day for 3 days, and group TD was administered diclofenac and tilmicosin at the same doses as group T and D. Group C received NaCl in a similar way. The blood samples were taken before dosing and at 4th, 8th, 24th and 72nd hour post-dosing for measurement of cardiac markers such as H-FABP, cTn-I, CK-MB. H-FABP level of group TD was found to be significantly (p<0.05) higher than of group C at the 8th, 24th and 72nd hour and group D and T at the 72nd hour. cTn-I and CK-MB levels of group TD were found significantly (p<0.05) higher compared with other groups. In conclusion, the combined use of tilmicosin and diclofenac in sheep causes an increase in cardiac biomarkers and it can be stated that this combination of drugs may cause cardiac damage.
Źródło:
Polish Journal of Veterinary Sciences; 2023, 26, 1; 5-12
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The clinical efficacy of pentoxifylline and l-glutamine on ischemia and reperfusion injury in cattle with displaced abomasum: a longitudinal study
Autorzy:
Maden, M.
Yildiz, R.
Çöl, R.
Arican, M.
Ider, M.
Parlak, K.
Tras, B.
Powiązania:
https://bibliotekanauki.pl/articles/2087148.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
abomasal displacement
acute phase response
oxidative stress
cytokine response
hemostatic dysfunction
dairy cow
Źródło:
Polish Journal of Veterinary Sciences; 2021, 24, 4; 595-605
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stokes Shift and Band Gap Bowing in $In_xGa_{1-x}N$ (0.060 ≤ x ≤ 0.105) Grown by Metalorganic Vapour Phase Epitaxy
Autorzy:
Yildiz, A.
Dagdelen, F.
Aydogdu, Y.
Acar, S.
Lisesivdin, S.
Kasap, M.
Bosi, M.
Powiązania:
https://bibliotekanauki.pl/articles/1813499.pdf
Data publikacji:
2008-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
73.61.-r
78.20.-e
78.40.Fy
78.55.-m
Opis:
We presented the results of electrical and optical studies of the properties of $In_xGa_{1-x}N$ epitaxial layers (0.060≤x≤0.105) grown by metalorganic vapour phase epitaxy. Resistivity and Hall effect measurements of the samples were carried out at room temperature. Optical properties of the samples were characterized by photoluminescence and optical absorption spectroscopy. The comparison between the photoluminescence and the optical absorption measurements gives the Stokes shift. We explained the observed Stokes shift in terms of Burstein-Moss effect. The band gap versus composition plot for $In_xGa_{1-x}N$ alloys is well fitted with a bowing parameter of≈3.6 eV.
Źródło:
Acta Physica Polonica A; 2008, 113, 2; 731-739
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radiative Lifetimes of Rydberg States in Neutral Gallium
Autorzy:
Yildiz, M.
Çelık, G.
Kiliç, H.
Powiązania:
https://bibliotekanauki.pl/articles/1808090.pdf
Data publikacji:
2009-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.Cs
Opis:
Radiative lifetimes were calculated using weakest bound electron potential model theory for $4s^{2}$ ns $\text{}^{2}S_{1//2}$ (n ≥ 7), $4s^{2}$ np $\text{}^{2}P^{0}_{1//2}$ (n ≥ 5), $4s^{2}$ np $\text{}^{2}P$ $\text{}^{0}_{3//2}$ (n ≥ 6), $4s^{2}$ nd $\text{}^{2}D_{3//2}^{0}$ (n ≥ 6), $4s^{2}$ nd $\text{}^{2}D$ $\text{}_{5//2}^{0}$ (n ≥ 6) series in neutral gallium. The use of the quantum defect theory and Martin's expressions allowed us to supply lifetime values along by means of the series above. The results obtained in this work presented good agreement with theoretical and experimental values. Moreover, some lifetime values not existing in the literature for highly excited Rydberg states in gallium atom were obtained using this method.
Źródło:
Acta Physica Polonica A; 2009, 115, 3; 641-646
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Properties of Sound Panels Made from Recycled Footwear Treads
Autorzy:
Yildiz, F.
Parlar, A.
Parlar, Z.
Bakkal, M.
Powiązania:
https://bibliotekanauki.pl/articles/1031925.pdf
Data publikacji:
2017-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
43.55.Ti
43.55.Vj
81.05.Lg
81.05.Rm
Opis:
Natural resources have been decreasing with the large expansion of the world's population. In order to supply raw material for production, new recycling approaches should be developed for waste materials. Worn shoes is one of the most common waste products that can be recycled for this purpose. According to the record, shoes are very complex products, as they can be produced from forty different materials, like leather, rubber, polymers etc. Especially the bottom layers of the shoes are made from sound absorbing materials like polyurethane, thermoplastic rubber and PVC. Because today's technology is not able to separate these materials from each other during recycling, they should be used in a homogenised state. Thus these parts were shredded into small granules and mixed. PU binder and hot press were used to obtain samples for tests. In this paper sound absorption, sound isolation, vibration isolation and thermal insulation properties of the tread mixture are investigated. In addition to that, the mechanical properties of the material were also investigated by measuring the compression strength of the material.
Źródło:
Acta Physica Polonica A; 2017, 132, 3; 936-940
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physico-chemical and biological activity of hawthorn (Crataegus spp. L.) fruits in Turkey
Fizykochemiczna i biologiczna aktywność owoców głogu (Crataegus spp. L.) w Turcji
Autorzy:
Ercisli, S.
Yanar, M.
Sengul, M.
Yildiz, H.
Topdas, E.F.
Taskin, T.
Zengin, Y.
Yilmaz, K.U.
Powiązania:
https://bibliotekanauki.pl/articles/11543262.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
physicochemical activity
biological activity
hawthorn
Crataegus
biochemical diversity
genotypic variation
fruit
fruit mass
anthocyanin
Turkey
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2015, 14, 1; 83-93
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palm vein authentication and verification system
Autorzy:
Cömert, M.
Yildiz, A.
Powiązania:
https://bibliotekanauki.pl/articles/1068544.pdf
Data publikacji:
2016-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.05.Pj
42.30.Sy
42.30.Tz
Opis:
In this work, both hardware and software of a palm vein capture system have been designed and a prototype is produced. By using this system, a genuine database was created with age and gender information of volunteered test subjects. Widely used pre-processing, acquisition of feature vectors, and classification methods were tested on the database and results are compared with speed versus accuracy. All the modules used in hardware and software were determined as open source. Python has been chosen as a software module programming on a single board computer with Linux kernel. As a result, an appropriately running system has been built with both secure software and hardware interfaces having maximum accuracy at 95.33% while specificity is at 100%.
Źródło:
Acta Physica Polonica A; 2016, 130, 1; 175-177
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Moisture-dependent frictional and aerodynamic properties of safflower seeds
Autorzy:
Kara, M.
Bastaban, S.
Ozturk, I
Kalkan, F.
Yildiz, C.
Powiązania:
https://bibliotekanauki.pl/articles/26361.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Opis:
The seeds of two safflower cultivars were investigated in order to determine their frictional and aerodynamic properties as a function of moisture content. The coefficients of dynamic friction of cultivars on aluminium, plywood, fibreglass and steel surfaces increased by 87, 56, 78, and 129% for cv. Remzibey-05 seed, and by 91, 31, 71, and 131% for cv. Dinçer seed, respectively, between the initial and final moisture content levels. The terminal velocities of the Remzibey-05 and Dinçer seeds increased by 15 and 11%, respectively, with increase in moisture content between the initial and final levels.
Źródło:
International Agrophysics; 2012, 26, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation on Magnetic Properties of Soft/Hard Magnetic Bilayers at Different Temperatures: a Monte-Carlo Study
Autorzy:
Değer, C.
Aköz, M.
Erkovan, M.
Yıldız, F.
Powiązania:
https://bibliotekanauki.pl/articles/1191754.pdf
Data publikacji:
2016-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.50.Cc
21.60.Ka
Opis:
Soft/hard magnetic bilayers are attractive systems for investigating their physical behavior due to scientific curiosity and the potential for technological applications. Thus, 10 nm thick hard magnetic layer placed on a 20 nm soft magnetic layer was modeled in this work. After the constructing of magnetic thin films, the bilayer structure was simulated based on micro-magnetic modeling. When constructing the Hamiltonian of the system, magnetocrystalline anisotropy term was also under debate with classical Zeeman and exchange terms. Energy minimization in the simulation was performed using Metropolis algorithm and Markov Chain Monte Carlo (MC-MC) method. As a result of modeling, hysteresis curves, remanent magnetization and coercive fields were obtained at different temperatures.
Źródło:
Acta Physica Polonica A; 2016, 129, 4; 869-871
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of Radiation Exposure Dose from Nuclear Medicine Procedures (Tc-99m MAG-3)
Autorzy:
Kara, U.
Yildiz, M.
Akkurt, I.
Powiązania:
https://bibliotekanauki.pl/articles/1031923.pdf
Data publikacji:
2017-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.50.yk
87.57.uk
Opis:
Nuclear medicine is great for viewing the roles of body organs. Medical imaging in nuclear medicine takes radioactive pharmaceuticals and studies their path of progress through patient's body. The principles of nuclear medicine are different from those of diagnostic radiology. The nuclear medicine can study the functioning of body and how it actually works. On the other hand, usage of different kinds of radiopharmaceuticals in nuclear medicine examinations can affect the dose rates. The purpose of our investigation was to estimate the effective dose from most common procedures, performed in nuclear medicine departments. We noted the injection radiation doses, which are used for diagnosis in nuclear medicine clinics. Later patient radiation doses were calculated, according to models recommended in ICRP 106.
Źródło:
Acta Physica Polonica A; 2017, 132, 3; 883-885
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of enzymatic effects on pit membranes using light and scanning electron microscopy
Autorzy:
Durmaz, S.
Yildiz, U.C.
Ozturk, M.
Serdar, B.
Powiązania:
https://bibliotekanauki.pl/articles/52338.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna
Tematy:
investigation
enzymatic effect
pit membrane
light electron microscopy
scanning electron microscopy
spruce wood
permeability
enzymatic treatment
Źródło:
Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2016, 59, 198
1644-3985
Pojawia się w:
Drewno. Prace Naukowe. Doniesienia. Komunikaty
Dostawca treści:
Biblioteka Nauki
Artykuł
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