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Wyświetlanie 1-15 z 26
Tytuł:
Development of PAOT Tool Kit for Work Improvements in Clinical Nursing
Autorzy:
Jung, M.- H.
Powiązania:
https://bibliotekanauki.pl/articles/90109.pdf
Data publikacji:
2014
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
clinical nursing practice
PAOT
participatory action-oriented training
tool kit
personel pielęgniarski
lista kontrolna
ankietowanie
praktyka
Opis:
The aim of this study was to develop an action checklist for educational training of clinical nurses. The study used qualitative and quantitative methods. Questionnaire items were extracted through in-depth interviews and a questionnaire survey. PASW version 19 and AMOS version 19 were used for data analyses. Reliability and validity were tested with both exploratory and confirmative factor analysis. The levels of the indicators related to goodness-of-fit were acceptable. Thus, a model kit of work improvements in clinical nursing was developed. It comprises 5 domains (16 action points): health promotion (5 action points), work management (3 action points), ergonomic work methods (3 action points), managerial policies and mutual support among staff members (3 action points), and welfare in the work area (2 action points).
Źródło:
International Journal of Occupational Safety and Ergonomics; 2014, 20, 1; 149-158
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Flexion and Extension Angles of Resting Fingers and Wrist
Autorzy:
Lee, K.-S.
Jung, M.- C.
Powiązania:
https://bibliotekanauki.pl/articles/90396.pdf
Data publikacji:
2014
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
finger
wrist
resting posture
angle
palce
nadgarstek
kąt zgięcia
pozycja odpoczynku
Opis:
This study determined flexion and extension angles of resting fingers and wrist in terms of forearm posture (neutral, pronation and supination) and shoulder flexion (0°, 45°, 90° and 135°). The participants participated in 12 angle measurements for 16 finger joints and wrist. The finger joints flexed more in supination than in neutral posture and pronation and the thumb flexed more than the other fingers because of the gravity and skin tension. This phenomenon became more apparent as the shoulder flexed. The carpometacarpal joint had the largest flexion angle in the thumb joints, whereas the proximal interphalangeal joints had the largest flexion angles in the other finger joints. The resting posture of the wrist extended of ~16° in any forearm postures when the shoulder was at 0°. The results of this study could be useful for rehabilitation tool and product designs.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2014, 20, 1; 91-101
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Postural Evaluation in a Poultry Farm for Broiler Chickens
Autorzy:
Wang, H.
Kong, Y. K.
Jung, M. C.
Powiązania:
https://bibliotekanauki.pl/articles/91121.pdf
Data publikacji:
2012
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
simultaneous posture
individual posture
body posture
finger posture
Opis:
The goal of this study was to evaluate working postures in 9 operations of poultry farming for broiler chickens for 14 body segments with 4 categories, and for fingers with 14 categories. Overall, the farmers commonly bent almost all their body segments and used power grips. The operations of cleaning with water wand and inspecting chickens seemed light work because the farmers walked around most of their working time. The operations of detaching base from hanging feeder and attaching base to hanging feeder had the farmers continue squatting to handle the feeders close to the floor. The farmers also repeatedly bent their trunks in shoveling feces, unloading a box of chicks, and releasing chicks. A power grip was frequently observed due to using tools with round handles. Workplace design to raise working height would be necessary for a better working environment for broiler farmers.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2012, 18, 1; 67-75
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prevention of tick bites and protection against tick-borne diseases in South-Eastern Poland
Autorzy:
Bartosik, K
Kubrak, T.
Olszewski, T.
Jung, M.
Buczek, A.
Powiązania:
https://bibliotekanauki.pl/articles/49324.pdf
Data publikacji:
2008
Wydawca:
Instytut Medycyny Wsi
Tematy:
tick bite
tick-borne disease
borreliosis
health
tick
prevention method
prevention
human disease
European country
risk
behaviour
Źródło:
Annals of Agricultural and Environmental Medicine; 2008, 15, 2
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ergonomic Hand Tool and Desk and Chair Development Process
Autorzy:
Shin, D.
Kim, J. Y.
Hallbeck, M. S.
Haight, J. M.
Jung, M. C.
Powiązania:
https://bibliotekanauki.pl/articles/89795.pdf
Data publikacji:
2008
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
ergonomics process
hand tool
desk and chair
Opis:
This paper suggests a practical and simple process consisting of 8 stages: needs assessment, ergonomics guidelines, anthropometry, brainstorming and idea sketch, preliminary model, drafting and rendering, working prototype, and user trials. The feasibility of this process was verified with the development of a modified clamping hand tool and a new student desk and chair. The case studies showed how design difficulties were overcome by integrating ergonomics guidelines in the process.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2008, 14, 2; 247-252
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Local anesthetics and advances in their administration - an overview
Autorzy:
Jung, Robert M.
Rybak, Magdalena A.
Milner, Paweł T.
Lewkowicz, Natalia
Powiązania:
https://bibliotekanauki.pl/articles/972732.pdf
Data publikacji:
2017
Wydawca:
Instytut Medycyny Wsi
Tematy:
local anaesthesia
pain control
wand
sleeperone
quicksleeper
syringe micro vibrator
Opis:
In dentistry nowadays, local anesthesia is the standard and the backbone for controlling pain Every year, researchers seek and develop new ways in which pain can be alleviated and managed better to ensure patient comfort by focusing on improving aspects such as anaesthetic agents, delivery devices and the techniques involved. The introduction of newer techniques assists dentists in providing enhanced pain relief with reduced pain from injection and fewer adverse reactions. Objective. The purpose of this overview is to highlight the mechanism and efficacy of certain anaesthetic agents, emphasizing complications associated with local anesthesia, as well as the modern techniques that have been developed to improve patient comfort and reduce pain while performing anaesthesia.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2017, 11, 1; 94-101
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Light Propagation in Optical Fibers with a High Step Index
Autorzy:
Jung, P.
Karpierz, M.
Powiązania:
https://bibliotekanauki.pl/articles/1417966.pdf
Data publikacji:
2012-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.25.Bs
42.81.-i
42.81.Qb
Opis:
Simulation of light beam propagation in optical fiber with a high step index requires the use of complicated methods. One of the simplest and accurate method is presented in this paper. The possibility of use of beam propagation method with exact boundary conditions in light beam propagation in optical fibers is shown in this work. The comparison of this method with analytical solutions for planar waveguide and optical fiber confirms usefulness of it.
Źródło:
Acta Physica Polonica A; 2012, 122, 5; 829-832
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Problem of Airflow Around Building Clusters in Different Configurations
Autorzy:
Jędrzejewski, M.
Poćwierz, M.
Zielonko-Jung, K.
Powiązania:
https://bibliotekanauki.pl/articles/139849.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
environmental wind engineering
airflow around buildings
damage mechanics
CFD simulation
k-ε realizable model of turbulence
RSM model of turbulence
inżynieria wiatrowa
przepływ powietrza wokół budynków
mechanika uszkodzeń
symulacja obliczeniowej dynamiki płynów CFD
model turbulencji k-ε realizable
model turbulencji RSM
Opis:
In the paper, the authors discuss the construction of a model of an exemplary urban layout. Numerical simulation has been performed by means of a commercial software Fluent using two different turbulence models: the popular k-ε realizable one, and the Reynolds Stress Model (RSM), which is still being developed. The former is a 2-equations model, while the latter – is a RSM model – that consists of 7 equations. The studies have shown that, in this specific case, a more complex model of turbulence is not necessary. The results obtained with this model are not more accurate than the ones obtained using the RKE model. The model, scale 1:400, was tested in a wind tunnel. The pressure measurement near buildings, oil visualization and scour technique were undertaken and described accordingly. Measurements gave the quantitative and qualitative information describing the nature of the flow. Finally, the data were compared with the results of the experiments performed. The pressure coefficients resulting from the experiment were compared with the coefficients obtained from the numerical simulation. At the same time velocity maps and streamlines obtained from the calculations were combined with the results of the oil visualisation and scour technique.
Źródło:
Archive of Mechanical Engineering; 2017, LXIV, 3; 401-418
0004-0738
Pojawia się w:
Archive of Mechanical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biodegradable dextran-based nanoparticles as potential anticancer drug carrier
Otrzymywanie biodegradowalnych nanocząstek dekstranowych jako potencjalnych nośników leków przeciwnowotworowych
Autorzy:
Janczewska, M.
Jung, P.
Ciach, T.
Powiązania:
https://bibliotekanauki.pl/articles/2072960.pdf
Data publikacji:
2014
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
anticancer therapy
polymer nanoparticles
preparation
cytotoxicity
terapia przeciwnowotworowa
nanocząstki polimerowe
preparatyka
cytotoksyczność
Opis:
Dextran-polycaprolactone nanoparticles were prepared and the influence of catalyst on particle diameter was investigated. Nanoparticles were synthesized by the simple one-pot reaction of spontaneous dextran modification with ɛ-caprolactone. Afterwards, nanoparticles were purified by dialysis, spray-dried and checked for cytotoxicity by the MTT assay. Prepared particles are a promising carrier for anticancer drug due to their biocompatibility and a narrow size distribution.
Otrzymano nanocząstki dekstranowe z użyciem polikaprolaktonu jako czynnika zwijającego oraz zbadano wpływ ilości katalizatora na ich średnicę. Synteza składa się z prostej jednostopniowej reakcji, w czasie której zachodzi polimeryzacja ε-kaprolaktonu na łańcuchu dekstranowym, a następnie spontaniczne zwinięcie łańcucha w cząstkę. Nanocząstki oczyszczono poprzez dializę, suszono rozpyłowo i przebadano pod kątem cytotoksyczności testem MTT. Otrzymane nanocząstki są obiecującym nośnikiem dla leków przeciwnowotworowych ze względu na wąski rozkład średnic oraz biokompatybilność.
Źródło:
Inżynieria i Aparatura Chemiczna; 2014, 4; 251--252
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Laser Preheating AISI 4140 Specimens for Micro-Forging
Autorzy:
Jung, C.
Lee, M. G.
Jeon, Y.
Powiązania:
https://bibliotekanauki.pl/articles/351766.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
laser preheating
micro-forging
fatigue strength
ultrasonic fatigue test
hardness
Opis:
Many high performance and permanent service parts require suitable material characteristics-high fatigue strength is one of the most important characteristics. For this reason, surface treatment processes are essential to increase the material performance and avoid the use of costly ineffective material. There exist various surface treatment processes for various applications. Each process has advantages and disadvantages and hybridization can solve various problems. The micro-forging process delivers a controlled and uniform surface hardness, but the depth of the forged surface is limited. On the other hand, laser heat treatment can increase the hardness drastically, but the surface may become brittle, which reduces the fatigue life. Laser-assisted micro-forging is a novel hybrid process of laser heat treatment and micro-forging that has the potential to increase the forging depth and relax the stress caused by the high temperature of the forging process. This study examines the effect of laser preheating in the micro-forging of AISI 4140. The processes were varied as follows: no treatment, micro-forging only, and laser-assisted micro-forging. The fatigue strength of the specimens was examined by means of an ultrasonic fatigue tester and then compared. The microstructural changes were investigated with respect to the processes by using scanning electron microscopy. In conclusion, it was confirmed that the laser preheating auxiliary forging affects the fatigue life. It was confirmed that the fatigue life was the mostly increased in 550°C temperature laser preheating micro forging process and the temperature was identified as the most important factor.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 2B; 1209-1213
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Semiempirical model for diagnostication Helicobacter pylori infection by use of 14C labelled urea
Autorzy:
Jung, A.
Wasilewska-Radwanska, M.
Kopanski, Z.
Powiązania:
https://bibliotekanauki.pl/articles/147046.pdf
Data publikacji:
2002
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
computing modelling
Helicobacter pylori infection
kinetics of 14C labelled urea
Opis:
The main aim of this study was to create a semiempirical model, helpful in estimating severity of the Helicobacter pylori (H. pylori) infection by using the urea breath test (UBT), when urea labelled 14C has been used for diagnostics. The model consists of four compartments representing stomach (1), blood vascular system (2), lungs (3) and urinary system (4). Mathematical model is based on the balance of radioactive 14C in compartments from 1 to 4. The histological investigations were used as reference methods. Comparison of the results obtained from simulation, which yields dependence of 14C activity on time, to experimental results of UBT, made it possible to determine the ranges of coefficient hB value, which characterized each degrees of severity of H. pylori infection: degree 0 (lack of infection) - hB below 0.025; degree 1 (not large) - hB in range 0.025-0.115; degree 2 (moderate) - hB in range 0.115-0.300; degree 3 (significant) - hB above 0.300. It was possible to estimate severity of H. pylori infection in clinical practice on the basis of comparing the 14C activity value of experimental points as obtained from the breath test, to the results of simulation with suitable value of the fitted parameter hB indicating degree of severity of infection.
Źródło:
Nukleonika; 2002, 47, 3; 95-99
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Same river same rules? – Administrative barriers in the Danube countries
Autorzy:
Pfoser, S.
Jung, E.
Putz, L.-M.
Powiązania:
https://bibliotekanauki.pl/articles/2140951.pdf
Data publikacji:
2018
Wydawca:
Fundacja Centrum Badań Socjologicznych
Tematy:
inland waterway transport
administrative processes
lean management
Danube River
Opis:
The Danube River Basin is shared by 19 countries, which makes it the world’s most international river basin. More than 81 million people of different cultures and languages live in the Danube Basin and they all are interconnected through the widely ramified water system of the Danube. The cultural variety is not only a valuable attribute of this region, but it also causes barriers related to the transport of goods and passengers on the Danube waterway and its navigable tributaries. The abundant existence of administrative barriers in Europe limits the economic and environmental potentials of inland waterway transport (IWT) as a sustainable mode of transport. These administrative barriers consist for example in reporting requirements that vary considerably among fairway authorities and Danube countries. Most often, reports or data provided cannot be re-used across countries or is not available requiring additional input or additional reporting activities by the barge operator. The objective of this paper is to identify administrative barriers for IWT on the Danube and develop solutions for improved procedures and processes. Data is collected from a dense network of stakeholders operating along the Danube. National focus groups were held to analyse the procedures and administrative processes in inland waterway transport and identify barriers. Further, an online-survey has been set up to collect data. Potential solutions are developed in a cooperative way together with involved operators and authorities. The philosophy of lean administration suggests that non-value added activities (“waste”) must be identified in a first step to make processes more efficient. A diverse number of non-value added administrative barriers were therefore identified in the countries along the Danube. Afterwards, Port Community Systems are introduced as a possible solution to overcome administrative barriers.
Źródło:
Journal of Sustainable Development of Transport and Logistics; 2018, 3, 3; 27-37
2520-2979
Pojawia się w:
Journal of Sustainable Development of Transport and Logistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative analysis of numerical and experimental studies of the airflow around the sample of urban development
Autorzy:
Gumowski, K.
Olszewski, O.
Poćwierz, M.
Zielonko-Jung, K.
Powiązania:
https://bibliotekanauki.pl/articles/200297.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
environmental wind engineering
airflow around buildings
CFD simulation
k-ε realizable model of turbulence
inżynieria wiatrowa
środowisko
przepływ powietrza wokół budynków
symulacja CFD
Opis:
In this paper, on the background of a short overview of the recent advances in the field of Environmental Wind Engineering (EWE), a comparison of wind tunnel experiment and numerical simulation for some cases of airflow around an urban layout have been reported. The purpose of the study is quantitative and qualitative comparison of measurements in the wind tunnel as well as numerical simulation using Ansys Fluent software. The study is concerned mostly with the analysis of parameters which are essential in the building industry, such as pressure and velocity fields. In the numerical analysis the k-ε realizable model of turbulence with the basic model of boundary layer – Standard Wall Treatment, were used. Particular attention has been paid to accurate depiction of the conditions on the inlet and the selection of suitable computing.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 3; 729-737
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of an eccentric decoupled charge on rock mass blasting
Autorzy:
Kim, Jung-Gyu
Ali, Mahrous A.M.
Kim, Jong-Gwan
Powiązania:
https://bibliotekanauki.pl/articles/1839045.pdf
Data publikacji:
2020
Wydawca:
Główny Instytut Górnictwa
Tematy:
eccentric decoupled charge
fracture pattern
PFC
AUTODYN
decoupling index
wzór pęknięcia
wskaźnik odsprzęgania
Opis:
Experimental and numerical analyses were conducted to investigate the effect of an eccentric loaded contour hole on a rock mass. In the concrete blocks used for the analyses, detonating cords were placed at the centre of the blast hole and eccentrically against the wall of the blast hole. PFC2D and AUTODYN were used for the numerical analyses, and the results of these software showed that an eccentric decoupled charge can result in the directional development of fractures, thereby enabling the control of cracks in the opposite direction. Even though both types of blasting have identical decoupling indexes, the crack and fracture patterns were affected by the location of the explosive, tamping, and other conditions. The results showed that an eccentric charge holder can be applicable to control the fracture direction and the damaged zone. For an eccentric charge, the initial crack was generated at 0.01 ms and expanded in the intended direction. For the eccentric charge, the maximum pressure at the area in contact with the blast hole wall exceeded that for the central decoupled charge by a factor of 5.5. Furthermore, the pressure in the intended direction was twice of that in the opposite direction.
Źródło:
Journal of Sustainable Mining; 2020, 19, 1; 1-10
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in Structure of CuCr0.6 Alloy After Repetitive Corrugation Process
Autorzy:
Jung, T.
Kwaśny, W.
Rdzawski, Z.
Głuchowski, W.
Matus, K.
Pawlyta, M.
Szindler, M.
Powiązania:
https://bibliotekanauki.pl/articles/356417.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
CuCr0.6 alloy
severe plastic deformation
repetitive corrugation and straightening
electron backscatter diffraction
transmission electron microscopy
Opis:
This paper presents the study of repetitive corrugation process influence on the strengthening of annealed alloy. Based on the results of mechanical properties of deformed sample, it has been found that the microhardness, ultimate tensile strength, yield strength and apparent elastic limit are significantly increased in relation to annealed sample. Examination on transmission electron microscopy confirmed the effect of intensive plastic deformation on structure fragmentation in the nanometric scale. This work confirmed the possibility of using the repetitive corrugation process to increase mechanical properties of CuCr0.6 alloy.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 4; 2441-2448
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
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