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    Wyświetlanie 1-10 z 10
    Tytuł:
    The anxiety levels in Polish hospital nurses experiencing various emotional disturbances
    Autorzy:
    Żuralska, R.
    Anand, J.S.
    Mziray, M.
    Schetz, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1917595.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Medyczny w Białymstoku
    Tematy:
    Anxiety
    life satisfaction
    cope with stress
    Nurses
    Opis:
    Introduction:Nurses experiencing a high level of anxiety have an impaired capability of coping with dangerous situations which require long-term effort.Purpose: The objective of the present study was to determine the relationship between the level of anxiety, satisfaction with life, style coping with stress, and personal and environmental factors, such as: age, material status, education and place of residence of participants.Materials and methods: The study included 113 women working as nurses, employed by the hospital of Medical University of Gdansk. The methods used to gather the data were:Trait Anxiety Inventory (STAI) by Wrześniewski et al., Scale of Satisfaction with Life by Juczyński, and The Miller Behavioural Style Scale by Miller.Results:In the group of nurses experiencing various emotional disturbances, the level of anxiety as a state exceeded the normal limits.The place of residence of study participants determined the anxiety level as a state. The general increase of the anxiety level confirmed that the perceived satisfaction with professional life decreased.Conclusions:The study showed that in case of Polish hospital nurses, personal and environmental factors such as: age, material status, education level and place of residence, have influence on response to stress factors and the choice of style coping with stress. In order to reduce professional-related stress there is the need to implement organizational changes. The nurses should receive psychological and social support in the form of care given by the co-workers, attend courses preparing them to cope with work-related stress and their own negative emotions, learn the principles of assertiveness and styles of coping with difficult situations.
    Źródło:
    Progress in Health Sciences; 2015, 5, 2; 142-148
    2083-1617
    Pojawia się w:
    Progress in Health Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Salt effect on the enthalpy of mixing of 2-propanol + acetic acid at 303.15 K
    Autorzy:
    Tamilarasan, R.
    Baffna, S.G.
    Anand-Prabu, A.
    Dharmendira-Kumar, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/778859.pdf
    Data publikacji:
    2009
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    entalpia
    system binarny
    efekt solny
    2-propanol
    kwas octowy
    excess enthalpy
    binary system
    salt effect
    acetic acid
    Opis:
    This paper presents the effect of two dissolved inorganic salts (zinc chloride, ZnCl2 and ammonium chloride, NH4Cl) on the enthalpy of mixing (HE) of 2-propanol + acetic acid binary system measured at 303.15 K using an isothermal displacement calorimeter with vapour space. A decreasing trend in the excess enthalpy of mixing values in the presence of ZnCl2 and NH4Cl indicate the endothermic behavior of this system. The Redlich-Kister equation has been used to fit the experimental HE data. The deviations from the ideal value and binary parameters were calculated and reported.
    Źródło:
    Polish Journal of Chemical Technology; 2009, 11, 4; 20-23
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation on the Effect of Technological Parameters on Emission Factor in 316L Stainless Steel Using Gas Metal Arc Welding
    Autorzy:
    Satheesh Kumar, K. V.
    Selvakumar, P.
    Uvanshankar, K. R.
    Thirunavukaras, U. S.
    Anand, Vijay V.
    Vishal, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2049738.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    emission factor
    shielding gas
    Permissible Exposure Limit
    health hazards
    glass fiber filter
    Opis:
    Growing awareness for occupational safety in the welding environment needs a sustainable welding system. Welding gases releases toxic tiny particles and gases that inflict severe health consequences in the weld zone are unsolicited. Some of the other main adverse effects are lung disease, hemoptysis, pulmonary inflammation, pneumoconiosis, etc. GMAW procedure has been used for welding 316L stainless steel plates of 3 mm, 5 mm, and 6 mm. Various current configurations with gas flow rate of 5 LPM, 10 LPM and 15 LPM were also used to achieve optimum butt joint performance and to reduce the production rate of fume contributing to cost-effectiveness. In this research a cost-effective fume extraction hood was fabricated for measuring emission factor produced during welding. Various shielding gas compositions including Pure Argon, Pure CO2, 92% Ar+8% CO2 and 88% Ar+12% CO2were used to determine the best operating parameters in the GMAW method. To satisfy the latest Permissible Exposure Limit (PEL) legislation, optimum technical parameters for efficient welding were acknowledged with the lowest emission factor. A maximum reduction of emission factor can be achieved by using Pure Argon. The inclusion of CO2 as a shielding gas mixture gives higher emission factor when compared to Pure Argon. Very low emission factor were witnessed in this research when compared to previous investigations. Lower emission factor of 2941.17 mg /kg of electrode, 4411.76 mg/kg of electrode and 7352.94 mg/kg of electrode were obtained for pure argon as shielding gas with 150 A welding current.
    Źródło:
    Archives of Metallurgy and Materials; 2021, 66, 2; 609-615
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimization of Process Parameters of Ultrasonic Welding on Dissimilar Metal Joints
    Autorzy:
    Mohan Kumar, Anand
    Rajasekar, R.
    Karthik, Vaduganathan
    Kheawhom, Soorathep
    Powiązania:
    https://bibliotekanauki.pl/articles/2049410.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    3105-H18 aluminium alloy
    pure copper
    ultrasonic welding
    optimization
    micro-hardness
    Opis:
    Nowadays the automotive industry mostly prefers innovative solid-state welding technologies that would enable to welding of lightweight and high-performance materials. In this work, 3105-H18 Aluminium alloy (Al) and pure Copper (Cu) specimens with 0.5 mm thickness have been ultrasonically welded in a dissimilar (Al-Cu) manner. Optimization of process parameters of ultra-sonic welding has been carried out through full factorial method, three levels of variables considered for this experimental studies namely, weld pressure, amplitude, and time, also each variable interaction with welding strength has been studied. Additionally, micro-hardness and microstructure investigation in welded joints has been studied. The result shows that the weld strength greatly influenced weld amplitude at a medium and higher level of weld pressure. The interface micro-hardness of the welded joint has lower compared to the base metal.
    Źródło:
    Archives of Metallurgy and Materials; 2021, 66, 3; 887-892
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Standardization of agrotechniques for weed management in aerobic rice (Oryza sativa L.)
    Autorzy:
    Habimana, S.
    Murthy, K.N.K.
    Hanumanthappa, D.C.
    Somashekar, K.S.
    Anand, M.R.
    Powiązania:
    https://bibliotekanauki.pl/articles/65317.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Opis:
    This weed management investigation was carried out at the Zonal Agricultural Research Station (ZARS), Bangalore, during the summers of 2017 and 2018 to standardize agrotechniques for weed management of rice grown under aerobic conditions. The experiment was laid out in a randomized complete block design with eleven treatments replicated thrice. It consisted of two pre-emergence herbicides and one early post-emergence herbicide, the stale seedbed technique, mulching, hand weeding and intercultivation which was compared to the weedy check. The results showed that pyrazosulfuron ethyl 10% wettable powder (WP) at 35 active ingredient (a.i.) g ⋅ ha–1 as PE fb bispyribac sodium 10% SC at 30 ml ⋅ ha–1 a.i. as an early post-emergence herbicide performed better in terms of rice grain and straw yield (5,800 and 9,786 kg ⋅ ha–1, respectively), plant height (58.42 cm), rice total dry matter production (149.84 g ⋅ plant–1), productive tillers ⋅ hill–1 (40.32), panicle length (24.53 cm), 1000 grain weight (25.35 g), net returns (Rs. 62424), higher B : C ratio (2.59) and lower total weed density, weed dry weight at different stages of rice and weed index (3.80%) as well as higher weed control efficiency (90.52%). This practice could be recommended to farmers growing aerobic rice under these climatic conditions.
    Źródło:
    Journal of Plant Protection Research; 2019, 59, 2
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Automated UAV to Survey and Monitor Ionising Radiation Levels in a Closed Environment
    Autorzy:
    Anand, R.
    Harshith, Kumar M. B.
    Raghavan, Anirudh
    Maddara, Roopak
    Anand, Prajna
    Powiązania:
    https://bibliotekanauki.pl/articles/2175938.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    unmanned aerial vehicle
    indoor SLAM
    sensor data
    disaster management robot
    path planning
    obstacle avoidance
    Opis:
    Since tragedies caused by nuclear disasters are always a concern, it is essential that nuclear power plants be monitored on a regular basis for any irregularities in ionising radiation levels. Irrespective of leakage proof measures being deployed in the plant, ensuring the safety of these measures is necessary. Given this scenario, the present study proposes the usage of unmanned aerial vehicles (UAVs) to ensure that radiation levels in nuclear plants remain within safe limits. The UAV deployed will map the entire environment following a unique path planning algorithm and monitor the environment with an onboard radiation sensor. If any irregularities are detected, the positional coordinates are flagged, and the A* algorithm is implemented to generate the shortest path between the starting point, and the flagged coordinates, which are considered as the destination coordinates. The UAV is made to traverse the shortest path together with maintaining stability of the system while traversing.
    Źródło:
    Power Electronics and Drives; 2022, 7, 42; 134--145
    2451-0262
    2543-4292
    Pojawia się w:
    Power Electronics and Drives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effects of viscosity on the structure of shock waves in a non-ideal gas
    Autorzy:
    Anand, R.
    Yadav, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1075490.pdf
    Data publikacji:
    2016-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    52.35.Tc
    47.55.Kf
    47.40.-x
    Opis:
    This work presents the structure of viscous shock front in a non-ideal gas. The analytical expressions for the particle velocity, temperature, pressure and change-in-entropy within the shock transition region are derived taking into consideration the Landau and Lifshitz equation of state for non-ideal gas. The effects on the structure of shock front due to the variations of the coefficient of viscosity, Mach number, adiabatic exponent and parameter of non-ideality of the gas are investigated. The model developed in the paper is valid only for small values of Mach number M i.e., M<2.5.
    Źródło:
    Acta Physica Polonica A; 2016, 129, 1; 28-34
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Vertical transportation: effects of harmonics of drives by PM machines
    Autorzy:
    Anand, R.
    Gayathridevi, B.
    Keshavan, B. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1193671.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    elevator
    permanent magnet synchronous machine
    adjustable speed drive
    quality
    safety
    reliability
    robustness
    Opis:
    Permanent magnet motor drive is a widely used technology, offering many advantages, such as exceptional speed, torque control and greater flexibility. Improvement of reliability and efficiency has become a great research interest. Towards this direction and taking into account the major developments in permanent machine technology over the recent years, the use of energy recovery converters has been introduced in various industrial applications. In this paper, the effects of harmonics on a three-phase motor controlled by a drive are analysed, and the behaviours of the filter topology after adopting regenerative drives are studied. The main contribution of this study is a methodology to foresee the standards that can be achieved with the use of an active front end system topology with filters. Moreover, the use of an optimum filter that eases the power system distortion is presented. The analysis presented in this paper is validated experimentally.
    Źródło:
    Power Electronics and Drives; 2018, 3, 38; 47-53
    2451-0262
    2543-4292
    Pojawia się w:
    Power Electronics and Drives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Development of a Method to Compute the Overall Key Performance Index for a Spinning Mill to Aid Supply Chain Management
    Opracowanie metody obliczania ogólnego kluczowego wskaźnika wydajności dla przędzalni w celu wspomagania zarządzania łańcuchem dostaw
    Autorzy:
    Anand, K. T.
    Rajan, A. John
    Bapu, B. R. Ramesh
    Powiązania:
    https://bibliotekanauki.pl/articles/232949.pdf
    Data publikacji:
    2019
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
    Tematy:
    key performance index
    overall KPI
    kluczowe wskaźniki wydajności
    KPI
    Opis:
    This paper aims to provide a convenient measure of evaluating the performance of spinning mills using the overall Key Performance Index. Although many authors have advocated the concept of the key performance index, their studies were confined to departments other than spinning. The methodology followed in this paper is based on providing weightages to machine utilisation, spindle production, end breaks, HOK (number of operative hours required to produce 100 kg of yarn), roving production, yarn realisation, CSP (count strength product), units/kg of yarn and to compute the overall Key Performance Index in a logical manner. It has come to light that some mills have achieved an overall Key Performance Index (OKPI) of more than 100 and less than 100 in certain other mills. Also the important factors which are significant for supply chain management have been highlighted. A very useful source of information and advice for various spinning mills to develop their own supply chain strategies is provided. Especially with the introduction of technical textiles, supply chain management has become a critical area.
    Celem artykułu było zapewnienie wygodnej miary oceny wydajności przędzalni przy użyciu ogólnego kluczowego wskaźnika wydajności. Chociaż w wielu opublikowanych pracach opowiadano się za koncepcją kluczowego wskaźnika wydajności, dotychczasowe badania ograniczały się do innych działów niż przędzalnictwo. Metodologia zastosowana w artykule opiera się na zapewnieniu wag użytkowania maszyny, produkcji wrzeciona, przerw końcowych, HOK (liczba godzin operacyjnych potrzebnych do wyprodukowania 100 kg przędzy), produkcji niedoprzędów, realizacji przędzy, CSP (iloczyn wytrzymałościowy), jednostek/kg przędzy. W pracy podkreślono czynniki istotne dla zarządzania łańcuchem dostaw. Artykuł może stanowić bardzo przydatne źródło informacji i porad dla różnych przędzalni w celu opracowania własnych strategii łańcucha dostaw, szczególnie biorąc pod uwagę fakt, że zarządzanie łańcuchem dostaw stało się krytycznym obszarem, zwłaszcza po wprowadzeniu tkanin technicznych.
    Źródło:
    Fibres & Textiles in Eastern Europe; 2019, 6 (138); 20-26
    1230-3666
    2300-7354
    Pojawia się w:
    Fibres & Textiles in Eastern Europe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Key Variables in the Control of Lead Time in Spinning Mills
    Podstawowe zmienne w kontroli czasu produkcji w przędzalniach
    Autorzy:
    Anand, K. T.
    Rajan, A. J.
    Narayanan, K. V.
    Bapu, B. R. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/233091.pdf
    Data publikacji:
    2016
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
    Tematy:
    card
    HOK
    lead time
    spindle production
    yarn quality index
    przędza zgrzebna
    czas produkcji
    współczynnik jakości przędzy
    Opis:
    An investigation of various factors which affect the lead time in spinning mills which produce 14.76 tex (40 Ne) carded yarns linear density is reported. For this study, data were collected from 27 mills producing 14.76 tex carded yarns of linear density. The important parameters which affect the lead time were obtained by principal component analysis of the data. Correlation matrix and multiple regression analysis were carried out taking into account the lead time as the dependent variable and HOK (the number of Operative Hours required to produce 100 kg of yarn), FQI (Fibre Quality Index), YQI (Yarn Quality Index) and spindle production as independent variables. The reliability of the data was checked by Cronbach’s alpha, which indicated 0.839. Other tests such as the Kruskal-Wallis test, Durbin Watson test, KMO (Kaiser – Meyer Olkin) and Bartlett’s test were also done to find out their association. The results show that of all the parameters considered the, lead time exerts maximum influence on spindle production, HOK and the yarn quality index in carded counts.
    Opisano badania rożnych czynników, które oddziałują na czas produkcji w przędzalniach produkujących przędze zgrzebne o masach liniowych 14.76 tex. Dla prezentowanej pracy zebrano dane pochodzące z 27 przędzalni produkujących przędze zgrzebne o masie liniowej 14.76 tex. Parametry, które wpływają na czas produkcji uzyskano przez analizę głównych składowych. Następnie zastosowano macierz korelacji i wieloparametrową analizę regresji biorąc pod uwagę czas produkcji jako zmienną zależną i liczbę operatywnych godzin potrzebnych do produkcji 100 kg przędzy (HOK), wskaźnik jakości włókna i przędzy oraz produkcję wrzecion jako zmienne niezależne. Stosowano również test Cronbach alpha, Kruskal-Wallis, Durbin-Watson, Kaiser-Meyer Olkin i Bertlett. Wyniki wykazują, że ze wszystkich parametrów wziętych pod uwagę przy rozważaniach czas produkcji wywiera największy wpływ na produktywność wrzecion, HOK i współczynnik jakości przędzy.
    Źródło:
    Fibres & Textiles in Eastern Europe; 2016, 2 (116); 139-145
    1230-3666
    2300-7354
    Pojawia się w:
    Fibres & Textiles in Eastern Europe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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