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Tytuł:
Assessment of parents’ ways of coping with critical situations
Autorzy:
Ślifirczyk, A.
Krajewska-Kułak, E.
Brayer, A.
Sobolewski, M.
Maciorkowska, E.
Powiązania:
https://bibliotekanauki.pl/articles/1917663.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
Autism
parents
Coping Inventory for Stress Situations
The General Self- Efficacy Scale
Opis:
Introduction: Stress experienced by parents of a disabled child can have a negative impact on family relationships. Purpose: Assessment of parents coping with critical situations. Materials and methods: We analyzed 83 families, including 30 families from Poland, 25 families from Belarus and 28 families from France and we used Coping Inventory for Stress Situations (CISS) and The General Self- Efficacy Scale (GSES). Results: After hearing the diagnosis most often parents felt shock (63.3% from Poland, 68% from Belarus and France 85.7%). Main parents' emotions induced by the disability was fatigue (76.7% from Poland, 44% from Belarus and 71.4% from France - p=0.028) and sadness (73.3% from Poland, 40% from Belarus and 28.6% from France - p=0.002). Most often in response to the annoying and stressful child’s behaviour parents tried to admonish (76.7% from Poland, 56% from Belarus and 75% from France) or shout at the child (66.7% from Poland, 24% from Belarus and 17.9% from France p <0.001). The least likely preferred style of coping with stress in all countries was the search for socializing. The highest rate of self-efficiency characterize parents from France, the lowest from Poland. Conclusions: The existence of factors which could significantly affect the level of burn-out syndrome in parents, such as the deterioration of the financial situation (mainly in Belarusian families), sadness, fatigue, insomnia (mainly in Polish families). Parents chose effective strategies of coping, and the predominant style was focused on the task. It has been shown that parents lack the ability to control negative emotions, which in particular affected Polish families (for example, domination of trials to admonish and explain, shouting at the child).
Źródło:
Progress in Health Sciences; 2016, 6(1); 116-122
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The quality of life in parents raising children with an autism spectrum disorder from Poland, Belarus and France
Autorzy:
Ślifirczyk, A.
Krajewska - Kułak, E.
Brayer, A.
Sobolewski, M.
Maciorkowska, E.
Powiązania:
https://bibliotekanauki.pl/articles/1917772.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
autism spectrum disorder
children
parents
quality of life
Opis:
Purpose: To assess the health-related quality of life (HRQL) in parents of children with autism spectrum disorder (ASD). Materials and methods: The sample consisted of 83 families with children with ASD, including 30 families from Poland, 25 from Belarus, and 28 from France. Parental HRQL was surveyed with the World Health Organization Quality of Life–BREF (WHOQOL–BREF) and KINDLR questionnaires. Results: This study showed that Polish parents reported the lowest quality of life according to the WHOQOL–BREF. Parents from Belarus reported slightly worse HRQL than parents from France, though other aspects of quality of life (e.g, social sphere, somatic sphere) did not differ significantly between these parents. Parents from Poland also reported lower HQOL according to the KINDLR questionnaire, while parents from Belarus had a higher HQRL in the mental, physical, and self-esteem domains compared to parents from Poland and France. Conclusion: Parents from Poland with children with ASD reported lower HRQL both on the WHOQOL–BREF and KINDL R questionnaires compared to parents from Belarus and France.
Źródło:
Progress in Health Sciences; 2016, 6(1); 102-107
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The assessment of empathic understanding and control of emotions in parents of children with autism
Autorzy:
Ślifirczyk, A.
Krajewska-Kułak, E.
Brayer, A.
Sobolewski, M.
Maciorkowska, E.
Powiązania:
https://bibliotekanauki.pl/articles/1917777.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
Autism
The Courtauld Emotional Control Scale
empathy
parents
Opis:
Introduction: Problems of families with autism are generally not visible or manifested, but without support, they become economically and educationally inefficient. Purpose: To assess the degree of empathic understanding of the child and the degree of emotional control by parents. Materials and methods: The study included 30 families from Poland, 25 from Belarus and 28 from France. We used Empathy Understanding Others questionnaire (KRE) and The Courtauld Emotional Control Scale (CECS). Results: The most common difficulty reported in the care of a child was gaining his/her independence (66.7% in Poland, 84% in Belarus, 78.6% in France). Parents from Poland more often (26.7%) than others (12% in Belarus, 3.6% in France) pointed out that the disability of a child caused that their friends turned their back to them. 40% of parents from Poland, 60% from Belarus and 57.1% from France claimed that the spouses accept the disability of the child. The disability induced in parents mainly fatigue (76.7% from Poland, 44% from Belarus, 71.4% from France). The level of empathy in Polish (64.2 ± 6.2) and French parents (64.8 ± 11.6) was almost identical, and the highest was among Belarusian parents (70.3 ± 8.3). Overall rate of CECS of the surveyed parents was at the average level (from Poland 47.4 ± 4.9; from Belarus 44.8 ± 6.1, from France 48.1 ± 6.0). Conclusions: Nurses evaluated their own preparation for educational activities usually very low. In the majority they would not want to take up the difficult role of educators of parents of autistic children. Due to a potential contact of a nurse with a child with autism and the child’s family, it is advisable to extend the knowledge of nurses in the care of a child with autism.
Źródło:
Progress in Health Sciences; 2016, 6(1); 108-115
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the impact of exercise of gait on a treadmill on balance of people who suffered from cerebral stroke
Autorzy:
Drużbicki, M.
Przysada, G.
Guzik, A.
Kwolek, A.
Brzozowska-Magoń, A.
Sobolewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/307497.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
równowaga
biofeedback
biologiczne sprzężenie zwrotne
udar mózgu
balance
treadmill
cerebral stroke
Opis:
Purpose: The aim of the study is to define the impact of exercise on a treadmill on static balance and stability of posture in a group of patients after cerebral stroke rehabilitated in a late period, with an application of a treadmill with the function of visual biofeedback. Methods: The examination was carried out in a group of 46 people in a late period after ischemic cerebral stroke. The patients examined were randomly put to a group with intervention (n = 23), in which a rehabilitation programme with an application of a treadmill with the visual feedback function was realized and to a control group (n = 23). They evaluated balance in standing on both feet by means of a force plate, symmetry of load of lower limbs and dynamic balance in Up & Go test. Results: A statistically significant change of stabilometric parameters was observed only in the area of postural sways of the centre of pressure (COP). A significant improvement of the symmetry of load of lower limbs in standing ( p = 0.0266) was diagnosed in the examined group after the end of the programme. After the end of the programme no significant difference between the group with intervention and the control group as for a change of balance of the examined patients was found. Conclusions: In the examined group in the chronic period after cs no significant improvement of stabilometrically evaluated balance was obtained, but improvement of the symmetry of load of lower limbs as well as improvement of dynamic balance were observed.
Źródło:
Acta of Bioengineering and Biomechanics; 2016, 18, 4; 41-48
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relationships between walking velocity and distance and the symmetry of temporospatial parameters in chronic post-stroke subjects
Autorzy:
Guzik, A.
Drużbicki, M.
Przysada, G.
Kwolek, A.
Brzozowska-Magoń, A.
Sobolewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/306249.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
udar
symetria
analiza lokomocji
prędkość
stroke
symmetry
gait analysis
velocity
Opis:
Purpose: Subjects with post-stroke hemiparesis frequently present with asymmetric gait patterns. Symmetry, reflecting similarities in temporospatial, kinematic parameters, is an important measure of gait assessment. The study was designed to examine the relationships between asymmetry of temporal, spatial and kinematic gait parameters and walking velocity and distance. Methods: Temporospatial and kinematic gait parameters were examined in a group of 50 chronic post-stroke subjects and in a group of 25 healthy controls. Symmetry ratio was calculated for all the parameters. Gait velocity was measured during 10-metre test, the walking distance during 2-Minute Walk Test, and balance during Up&Go Test. Results: The relationship between stance phase duration symmetry and gait speed was at a moderate level (r = –0.43, p = 0.0173). There was a moderate relationship between swing phase symmetry and walking velocity and distance. The findings did not show a significant correlation between step length symmetry versus gait speed and distance. Conclusions: There is a mild relationship between self-selected gait velocity and walking distance versus temporal parameters symmetry. The findings do not confirm a relationship between self-selected gait velocity and walking distance versus spatial and kinematic parameters as well as balance. Likewise, no evidence confirms that asymmetry of temporal, spatial, kinematic gait parameters changes with the age of post-stroke subjects or is related to the length of time from stroke onset. Given the above, gait symmetry may be recognized as an important indicator of the level of gait control in post-stroke patients because it enables unique gait assessment, independent from other parameters.
Źródło:
Acta of Bioengineering and Biomechanics; 2017, 19, 3; 147-154
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Leisure time physical activity of young women from the Carpathian Euroregion in relation to the Body Mass Index
Autorzy:
Zadarko, E.
Barabasz, Z.
Niziol-Babiarz, E.
Zadarko-Domaradzka, M.
Barabasz, M.
Sobolewski, M.
Palanska, A.
Bergier, J.
Junger, J.
Powiązania:
https://bibliotekanauki.pl/articles/49954.pdf
Data publikacji:
2014
Wydawca:
Instytut Medycyny Wsi
Źródło:
Annals of Agricultural and Environmental Medicine; 2014, 21, 3
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chlorine content in bituminous coal of „Pniówek” deposit from SW part of Upper Silesian Coal Basin
Zawartość chloru w węglu kamiennym złoża „Pniówek” z SW części Górnośląskiego Zagłębia Węglowego
Autorzy:
Marcisz, M.
Sobolewski, A.
Powiązania:
https://bibliotekanauki.pl/articles/216612.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
Upper Silesian Coal Basin
bituminous coal
coal quality estimation
quality parameters
chlorine content
Górnośląskie Zagłębie Węglowe
węgiel kamienny
szacowanie jakości węgla
parametry jakościowe
zawartość chloru
Opis:
Chlorine content variability analysis has been performed for 11 coal seams of the “Pniówek” deposit. The analysis has been performed based upon a digital database including 1136 samples, among which, for 472 samples the content of this parameter was determined. Basic statistical analyses were performed, which led to the determination of the number of samples from individual seams, in which the chlorine content was specified as well as the identification of the maximal and mean content of the parameter in a given seam. The horizontal (E-W and N-S directions) and vertical (with depth) variation of the chlorine content was determined. Also isoline maps of chlorine content in all examined seams were plotted. The results have shown that the chlorine content in the examined seams of the“Pniówek” deposit varies in a wide range from 0.025 to 0.584% Cla (mean of 0.134%). The extreme values (the highest and the lowest) of this parameter have been found in the 401/1 seam, which is characterized by a mean part of Cla amounting to 0.125%. No general tendency of chlorine content variation has been found. Each of the seams presents different characteristics of these variations. As it seems, it may nevertheless be observed that the chlorine content increases in the eastern and north-eastern direction.
Scharakteryzowano zmiany zawartości chloru w 11 pokładach węgla kamiennego złoża „Pniówek”. Dokonano tego na podstawie utworzonej cyfrowej bazy danych obejmującej 1136 próbek, spośród których w 472 oznaczono zawartość tego pierwiastka. Przeprowadzono podstawowe analizy statystyczne, za pomocą których określono m.in. liczbę próbek, w których oznaczono zawartość chloru w poszczególnych pokładach, a także minimalną, maksymalną oraz średnią zawartość tego pierwiastka w danym pokładzie. Prześledzono zmiany zawartości chloru w układzie horyzontalnym (w dwóch kierunkach: wschód-zachód oraz północ-południe) i wertykalnym (wraz z głębokością). Wykreślono także mapy izolinii zawartości chloru we wszystkich badanych pokładach węgla. Wyniki badań wykazały, iż zawartość chloru w badanych pokładach złoża „Pniówek” zmienia się w szerokim zakresie od 0,025 do 0,584% Cla (śr. 0,134%). Ekstremalne (najniższa i najwyższa) wartości tego parametru stwierdzono w pokładzie 401/1, charakteryzującym się średnim udziałem 0,125% Cla. Nie wykazano żadnej ogólnej tendencji zmian zawartości chloru.W każdym z pokładów obserwuje się odmienny charakter tych zmian. Można jednakże zauważyć wzrost zawartości chloru w kierunku wschodnim i północno-wschodnim.
Źródło:
Gospodarka Surowcami Mineralnymi; 2015, 31, 1; 95-106
0860-0953
Pojawia się w:
Gospodarka Surowcami Mineralnymi
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prediction of corrections for the Polish time scale UTC(PL) using artificial neural networks
Autorzy:
Luzar, M.
Sobolewski, Ł.
Miczulski, W.
Korbicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/202125.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
neural network
prediction methods
national timescale
atomic clock
Opis:
In this paper, the effectiveness of using Artificial Neural Networks (ANNs) for predicting the corrections of the Polish time scale UTC(PL) (Universal Coordinated Time) is presented. In particular, prediction results for the different types of neural networks, i.e., the MLP (MultiLayer Perceprton), the RBF (Radial Basis Function) and the GMDH (Group Method of Data Handling) are shown. The main advantages and disadvantages of using such types of neural networks are discussed. The prediction of corrections is performed using two methods: the time series analysis method and the regression method. The input data were prepared suitable for the above mentioned methods, based on two time series, ts1 and ts2. The designation of prediction errors for specified days and the influence of data quantity for the prediction error are considered. The paper consists of five sections. After Introduction, in Sec. 2, the theoretical background for different types of neural networks is presented. Section 3 shows data preparation for the appropriate type of neural network. The experimental results are presented in Sec. 4. Finally, Sec. 5 concludes the paper.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2013, 61, 3; 589-594
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methodology of measurement aeronautical bevel gears using an optical scanner ATOS II Triple Scan
Autorzy:
Marciniec, A.
Budzik, G.
Dziubek, T.
Sobolewski, B.
Zaborniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/247458.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
bevel gear
aircraft gearbox
optical scanner
coordinates measuring technique
Opis:
Properly prepared and carried out the measurement process of bevel gears determines its accuracy and productivity. This also has an influence on the final accuracy of bevel gears and the production costs of aeronautical gearbox. In the process of assessing the accuracy of manufacturing, majority of manufacturers of bevel gears use specialized contact coordinate measuring machines. The application of such machines as well as specialized programs dedicated to measuring the geometry of bevel gears are authoritative but in turns this requires substantial financial resources for the purchase of machinery. Thereby, this causes the limitation only of the gear assortment. Therefore, this article depicts different perspective on measurements of bevel gears using a universal measuring device, which is an optical 3D scanner ATOSII Triple Scan. Due to the use of the optical scanner ATOS II Triple Scan in measurement process, it was necessary to develop a methodology dealing with the process of assessing and accuracy, in order to achieve the desired results of measurement. This need arises from the fact that the optical scanner ATOS is not dedicated, specialized device for measuring gears. Despite of this fact, maintaining the appropriate measurement procedures and a proper preparation of the measured model allows for rapid and accurate assessment of the accuracy ofproduction. The article presents the analysis of conditions and developed rules concerning the preparation of a model for measurement. It also contains hints and a description of the measurement process. Furthermore, it depicts the rules specifying the interpretation of measurement results as well as the technical rules of their realization.
Źródło:
Journal of KONES; 2014, 21, 2; 201-208
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cleaning of process gas from gasification of solid recovered fluid — results of experimental research
Autorzy:
Sobolewski, A.
Szul, M.
Iluk, T.
Ostrowski, W.
Billig, T,
Powiązania:
https://bibliotekanauki.pl/articles/175137.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
gasification
SRF
process gas cleaning
high temperature filtration
oil scrubber
Opis:
The paper takes up the topic of energetic utilization of alternative fuels produced from wastes, particularly in case of solid recovered fuel gasification for cogeneration of heat and power in piston engine. Process gas cleaning for its energetic and chemical utilization has been discussed. Presented scope of research concerns technological designs for dry and wet gas cleaning methods developed by Institute for Chemical Processing of Coal. Furthermore identified main operational problems of both gas cleaning units have been presented. Description of the two types of gas cleaning units has been provided together with obtained results from laboratory analysis of moisture, tar and particle content measured in process gas generated from solid recovered fluid.
Źródło:
Transactions of the Institute of Fluid-Flow Machinery; 2017, 137; 59-70
0079-3205
Pojawia się w:
Transactions of the Institute of Fluid-Flow Machinery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determine the precision of aviation bevel gear, made by the selected incremental techniques and using an optical scanner Atos II Triple Scan
Określenie dokładności kół zębatych lotniczej przekładni stożkowej wykonanych wybranymi metodami przyrostowymi z zastosowaniem optycznego skanera Atos II Triple Scan
Autorzy:
Marciniec, A.
Budzik, G.
Dziubek, T.
Sobolewski, B.
Zaborniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/1396904.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
CAD model
simulation cutting
rapid prototyping
optical measuring
model CAD
symulacja obróbki
szybkie prototypowanie
pomiary optyczne
Opis:
Designing and manufacturing of aeronautic bevel gearbox is a complicated and time-consuming process due to complex kinematics of the machining process and numbers of manufacturing methods. Algorithms used in manufacture process are usually provided by machine manufacturers. Using other and commonly available calculation algorithms requires a lot of studies to verify whether the proposed gearbox works correctly. In order to reduce the manufacturing costs of prototypes, it is possible to use Rapid Prototyping methods. Using coordinate optical measurements enables to determine the accuracy of prototypes manufactured by selected methods using and introduce such changes in the model to get the best accuracy of mapping models. Increasing the accuracy of the models enables to verify the correctness of assumptions made in the initial stage of product designing. This approach reduces significantly both prototyping time and manufacturing costs. The article presents the model ling and manufacturing process of aeronautic bevel gear taking into consideration the accuracy of selected Rapid Prototyping methods. The gear modeling is based on machining simulation method conducted in Autodesk Inventor software. The measurement results are shown in displacement maps obtained with an optical scanner Atos II Triple Scan and universal GOM Inspect Professional software, which determines the prototype accuracy in relation to 3D-CAD models.
Projektowanie oraz wytwarzanie lotniczych przekładni stożkowych jest skomplikowanym i czasochłonnym procesem ze względu na złożoną kinematykę procesu obróbki oraz ze względu na liczne metody wytwarzania. W procesie produkcji stosowane są zazwyczaj algorytmy dostarczane przez producentów obrabiarek. Wymaga to znacznych nakładów finansowych, a w efekcie podnosi koszty wykonania wyrobu. Zastosowanie innego ogólnie dostępnego algorytmu obliczeniowego wymaga przeprowadzenia szeregu badani mających na celu weryfikacje poprawności pracy projektowanej przekładni. W celu ograniczenia kosztów związanych z wytwarzaniem prototypów metodami ubytkowymi możliwe jest wykonanie prototypów metodami przyrostowymi. Dzięki zastosowaniu współrzędnościowych pomiarów optycznych możliwe jest określenie dokładności otrzymywanych wybranymi metodami prototypów i wprowadzenie takich zmian w modelu aby uzyskać jak najlepsza dokładność odwzorowania modeli. Podniesienie dokładność modeli umożliwia ich wykorzystanie do weryfikacji poprawności poczynionych założeń konstrukcyjnych w początkowym etapie powstawania wyrobu. Podejście takie skutkuje znacznym skróceniem czasu prototypowania oraz obniżeniem kosztów produkcji. Artykuł przedstawiał będzie proces modelowania i wytwarzania stożkowych kół zębatych stożkowej przekładni lotniczej, z uwzględnieniem dokładności wybranych metod RP. W modelowaniu kół zębatych wykorzystana zostanie metoda symulacji obróbki prowadzona w środowisku oprogramowania Autodesk Inventor. Przedstawione zostaną wyniki pomiarów w postaci map odchyłek uzyskane z zastosowaniem optycznego skanera Atos II Triple Scan oraz uniwersalnego oprogramowania GOM Inspect Professional, określające dokładność prototypów w odniesieniu do wzorców 3D-CAD.
Źródło:
Diagnostyka; 2015, 16, 1; 63-67
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The determination of accuracy of the demonstrator of aeronautic bevel gearbox, accomplished by selected rapid prototyping techniques using an optical scanner Atos II Triple Scan
Autorzy:
Marciniec, A.
Budzik, G.
Dziubek, T.
Sobolewski, B.
Zaborniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/247540.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
bevel gear
aircraft gearbox
optical scanner
coordinate measuring technique
rapid prototyping
gear modelling
Opis:
Designing and manufacturing of aeronautic bevel gearboxes is a complicated and time-consuming process because of complex kinematics of the machining process as well as numbers of manufacturing methods. Machine manufacturers usually provide algorithms used in manufacture process. This requires substantial financial resources and, in consequence, it increases the costs of production. Using other commonly available calculation algorithm requires a lot of studies to verify whether the proposed gearbox works correctly. In order to reduce the manufacturing costs of prototypes, it is possible to use Rapid Prototyping methods. Using both Rapid Prototyping techniques and coordinate optical measurements enables to verify the correctness of assumptions made in the initial stage of product designing. This approach reduces significantly both prototyping time and manufacturing costs. In order to ensure the effectiveness of prototyping process, it is essential to provide the accuracy of manufactured prototypes. That is the reason why it is necessary to determine manufacturing methods that will ensure the highest geometric accuracy. The study presents the modelling and manufacturing process of aeronautic bevel gear of demonstrator taking into consideration the accuracy of selected Rapid Prototyping methods. The gear modelling is based on machining simulation method conducted in Autodesk Inventor. The measurement results are shown in displacement maps obtained with an optical scanner Atos II Triple Scan and universal GOM Inspect Professional software, which determines the prototype accuracy in relation to 3D-CAD models.
Źródło:
Journal of KONES; 2014, 21, 3; 205-209
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Compaction Studies of Torrefied Willow
Autorzy:
Rejdak, M.
Czardybon, A.
Ignasiak, K.
Sobolewski, A.
Robak, J.
Powiązania:
https://bibliotekanauki.pl/articles/125186.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biomass
torrefaction
briquetting
briquette
Opis:
The article presents the results of studies of torrefied willow (Salix viminalis L.) compaction. Densification tests were performed using a hydraulic press with a maximum pressure of 216 MPa. The effect of basic parameters of the briquetting process (pressure and temperature) on mechanical parameters of manufactured briquettes were determined. On the basis of the research, it was found that the increase in pressure and temperature of the densification process increases the density and strength of pressed briquettes. The positive effect of temperature is particularly noticeable at lower pressing pressures (36 MPa – 72 MPa). In the case of a temperature of 300 C, the increase in a pressure from 144 MPa to 216 MPa resulted in the decrease in the density and strength of the briquette. It was also found that the briquettes manufactured at this temperature are characterized by lower density and strength than the briquettes obtained at a temperature of 200 oC.
Źródło:
Journal of Ecological Engineering; 2017, 18, 1; 183-192
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of graphene-based biosensor for medical diagnostics
Autorzy:
Sobolewski, P.
Penkala, K.
Podolski, J.
Mijowska, E.
El Fray, M.
Powiązania:
https://bibliotekanauki.pl/articles/285942.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
biosensors
medical diagnosis
biomaterials
Opis:
The explosion of information provided by the “-omics,” (genomics, proteomics, etc.) has resulted in a pressing need to develop matching diagnostic technologies, so-called biosensors. Rapid, sensitive, selective, and cost-effective analysis of different biomolecules and microorganisms is crucial in clinical diagnosis and efficient treatment of patients. Further, there is a growing demand for decentralized laboratory methodologies that can be implemented in doctor’s office, emergency room or in the field for the analysis of such analytes as DNA, RNA, proteins, antibodies, bacteria, viruses, small compounds etc. Lab-on-a-chip platforms and miniaturized point-of-care devices based on biosensors fulfill these demands and are foreseen to revolutionize the future of medical diagnostics. Because of excellent electric and optical properties, graphene has recently found to be highly attractive in biosensing applications and may thrust new possibilities into the field of miniaturized medical diagnostic devices. The main objective of this project is to develop a multifunctional grapheme biosensor for effective electrochemical detection of specific DNA microbial targets in biological samples. Novel nanocomposites consisting of chitosan and nanoparticle-modified graphene will be combined with locked nucleic acid molecular beacons with the goal of producing “ink” for ultrasonic non-contact printing of electrical circuits. The developed technology will allow fabrication of low cost, highly sensitive biosensors for point-of-care diagnosis.
Źródło:
Engineering of Biomaterials; 2014, 17, no. 128-129; 83
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technology of Ultrathin NbN and NbTiN Films for Superconducting Photodetectors
Autorzy:
Guziewicz, M.
Slysz, W.
Borysiewicz, M.
Kruszka, R.
Sidor, Z.
Juchniewicz, M.
Golaszewska, K.
Domagala, J.
Rzodkiewicz, W.
Ratajczak, J.
Bar, J.
Wegrzecki, M.
Sobolewski, R.
Powiązania:
https://bibliotekanauki.pl/articles/1492719.pdf
Data publikacji:
2011-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
74.62.Bf
74.78.-w
81.15.Cd
81.15.Jj
Opis:
We report fabrication and characterization of ultrathin NbN and NbTiN films designed for superconducting photodetectors. Our NbN and NbTiN films were deposited on $Al_2O_3$ and Si single-crystal wafers by a high-temperature, reactive magnetron sputtering method and, subsequently, annealed at 1000°C. The best, 18 nm thick NbN films deposited on sapphire exhibited the critical temperature of 15.0 K and the critical current density as high as ≈ 8 × $10^6$ A/$cm^2$ at 4.8 K.
Źródło:
Acta Physica Polonica A; 2011, 120, 6A; A-076-A-079
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 19

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