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Wyszukujesz frazę "Sahu, P." wg kryterium: Autor

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    Wyświetlanie 1-11 z 11
    Tytuł:
    Sources of radon and its measurement techniques in underground uranium mines – an overview
    Autorzy:
    Sahu, P.
    Panigrahi, D. C.
    Mishra, D. P.
    Powiązania:
    https://bibliotekanauki.pl/articles/92136.pdf
    Data publikacji:
    2014
    Wydawca:
    Główny Instytut Górnictwa
    Tematy:
    underground uranium mine
    radon exhalation
    uranium-bearing ore
    backfill tailings
    mine water
    accumulation technique
    podziemna kopalnia uranu
    ekshalacja radonu
    rudy uranu
    wody kopalniane
    technika akumulacji
    Opis:
    Purpose This study aims to identify the potential sources of radon exhalation and its measurement in underground uranium mines to control the radiation levels within safe limits and protect miners from radiation hazards. Methods An extensive literature review on radon exhalation in underground uranium mines from various sources such as uranium ore, backfill tailings and mine water has been carried out. The influence of different important factors, viz. ore grade, porosity, grain size and moisture content on radon exhalation has been discussed in depth. Different methods for the measurement of radon exhalation from various sources in mines have also been presented in this paper. Results The review of literature revealed that the radon exhalation rate in porous uranium bearing rocks is less affected by the ore grade than in non-porous rocks. The exhalation of radon from backfill tailings is quantitatively more significant than from the uranium ore itself due to higher bulk porosity and enhanced surface area. Thus, porosity is the dominant factor that affects the rate of radon exhalation from rock surfaces into mine openings. Practical implications The knowledge of the sources of radon and quantitative estimation of radon from various sources will be very much useful in the planning and designing of ventilation systems in underground uranium mines. The accurate measurement of radon exhalation in underground uranium mines can be made by choosing the optimum size of accumulation chamber and a suitable radon build-up period in the chamber. Originality/ value The study portrays the important sources of radon and its measurement techniques in underground uranium mines based on an extensive literature review. The methods of measurement of radon exhalation from the ore body and backfill tailings in underground uranium mines, used by the authors of this paper, comparatively give more accurate results than previously used methods. Furthermore, the methods are more effective in terms of portability, cost and time for measuring the average radon exhalation across a large.
    Źródło:
    Journal of Sustainable Mining; 2014, 13, 3; 11-18
    2300-1364
    2300-3960
    Pojawia się w:
    Journal of Sustainable Mining
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study of venturi scrubber efficiency for pesticide industry
    Autorzy:
    Desai, R.
    Sahu, O.P.
    Powiązania:
    https://bibliotekanauki.pl/articles/11827.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    venture
    scrubber efficiency
    pesticide
    industry
    air pollution
    human health
    air pollutant
    toxicity
    Opis:
    A venturi scrubber is designed to effectively use the energy from the inlet gas stream to atomize the liquid being used to scrub the gas stream. This type of technology is a part of the group of air pollution controls. The air pollution generated from the industry is now become serious problem for the environment, which affect the living and non living thing on the Earth. Among all the air pollution monitoring equipment venturi scrubber found to suitable for prevention of air pollution by pesticide. It was found that scrubber shows 99.1 % efficiency.
    Źródło:
    International Letters of Natural Sciences; 2014, 04
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Natural coagulant for the treatment of food industry wastewater
    Autorzy:
    Anteneh, W.
    Sahu, O.P.
    Powiązania:
    https://bibliotekanauki.pl/articles/11146.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    natural coagulant
    waste water treatment
    food industry
    industrial waste water
    coagulation
    filtration
    polymeric coagulant
    coagulant
    industrialization
    Opis:
    Wastewater treatment is becoming ever more critical due to diminishing water resources, increasing wastewater disposal costs, and stricter discharge regulations that have lowered permissible contaminant levels in waste streams. The ultimate goal of wastewater management is the protection of the environment in a manner commensurate with public health and socio-economic concerns. The aim of our study is to use natural occurring polymeric coagulant to reduce the chemical oxygen demand and color from the industrial waste water. It was found that 83 % of Chemical oxygen demand and 90 % of color reduction was observed with chitosan.
    Źródło:
    International Letters of Natural Sciences; 2014, 04
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biogas as resources of energy
    Autorzy:
    Yimer, S.
    Sahu, O.P.
    Powiązania:
    https://bibliotekanauki.pl/articles/11279.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    biogas
    resource
    energy
    methane
    composter
    digestor
    fuel
    waste
    Opis:
    The objective of the study described the importance of biogas and its importance. The biogas generally obtained from the waste. The so-called wastes that we discard and suffer with the consequences of improper management are of course partly huge energy and fertilizer sources that can support energy demands of cities greatly. Urban waste disposal is a serious challenge in all cities in the developing world, and its accumulation is an additional health hazard. Reliable and generally accepted disposal of the comparatively large amounts of digestate produced is necessary if biogas production is to be implemented. In this regard‟s discussion has been about the biogas production reaction involves, design and applications
    Źródło:
    International Letters of Natural Sciences; 2014, 04
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Gender Difference and Emotional Intelligence in Selected Hospitals - A Study
    Autorzy:
    Sahu, Tapas Lata
    Das, R. P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1192719.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Emotional Intelligence
    Gender Difference
    Male and Female Employees
    Healthcare Organization
    Opis:
    Emotions in humans are subjective conscious experience characterized by psycho-physiological expressions and behavioral reactions. It may act as tool, if positively identified by complementing and enriching job performance but if negatively understood can ruin feelings and be a disaster. Emotions in healthcare organizations are important to be taken care of because in the service exchange process emotions of both the service provider and the receiver are directly involved. Although caring and curing patient by these employees is a professional activity but still, the empathetic and sympathetic behavior shown by these professionals influences their performance and success in hospital industry. Moreover, the behavior shown by these employees in the workplace is often discriminated on the basis of their gender as it influences the performance of health professionals. Based on above backdrop, the objective of the current study is to assess whether there exist difference in emotional intelligence of healthcare employees in hospitals with respect to their gender. A standardized questionnaire was used to conduct the study among 300 employees in hospitals with the help of scale developed by Hyde, Pethe and Dhar (2002). Data was analyzed through SPSS and results indicated that the level of emotional intelligence among females is higher than male employees.
    Źródło:
    World Scientific News; 2016, 59; 1-11
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Emotional Intelligence and Ability to Manage Customer Relationship in Bank Employees of Selected Indian Banks - A Study
    Autorzy:
    Sahu, Tapas Lata
    Das, R. P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1189944.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Demographic Variables
    Emotional Intelligence
    Managing Customer Relationships
    Opis:
    Managing customer relationship is a great challenge in the present era of service revolution. As large numbers of players are now entering into this industry, the intensity of competition is growing among them in very passing day. In the current cut throat competition, customers are becoming very particular to use or not to use services of any organization. Therefore, managing customer relationship is playing dominant role for in almost every service providing organizations, so banks are not an exception. There is a popular belief that higher the emotional intelligence of service provider better will be their ability to manage customer relationship. So the present study is the part of a large study conducted on 300 bank employees working in 5 different banks (both in public and private sector) in the state of Chhattisgarh to assess whether their demographic variables, emotional intelligence and ability to manage customer relationship are related with each other. Data were collected with the help of a schedule to measure emotional intelligence and ability to manage customer relationship and are analyzed with help of ANOVA and Correlations by using SPSS. The study reveals that there exist significant and strong relationship between emotional intelligence, demographic variables and ability to manage customer relationship. Thus, it is concluded that service providers in banks with their high level of emotional intelligence and ability to manage customer relationship can contribute significantly to attract and retain customers and build long term relationship with them.
    Źródło:
    World Scientific News; 2016, 52; 31-43
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design and development of 3-stage determination of damage location using Mamdani-Adaptive Genetic-Sugeno model
    Autorzy:
    Sahu, S.
    Kumar, P. B.
    Parhi, D. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/281979.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
    Tematy:
    damage
    Mamdani FIS
    Sugeno FIS
    Adaptive Genetic Algorithm
    vibration
    natural frequencies
    Opis:
    Damage detection in structural elements like beams is one of important research areas for health monitoring. Initiation of a fault in the form of a crack or any damage puts a limitation on the service life of a structural member. So, in this paper, a method is proposed which uses the advantages of soft computing techniques like Fuzzy Inference Systems (Mamdani and Sugeno) and Adaptive Genetic Algorithm for three stage refinement of the data base generated using dynamic responses from a cracked fixed-free aluminum alloy beam element. For the crack element reference, a finite element model of a single transverse crack has been considered. The proposed method describes both Mamdani and Sugeno Fuzzy Inference Systems for training of damage parameters. In the Adaptive Genetic Algorithm, a statistics based method has been incorporated to limit the randomness of the search process. Finally, the results from the Mamdani-Adaptive Genetic-Sugeno model (MAS) are validated with the results from the experimental analysis.
    Źródło:
    Journal of Theoretical and Applied Mechanics; 2017, 55, 4; 1325-1339
    1429-2955
    Pojawia się w:
    Journal of Theoretical and Applied Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Navigation of humanoids by a hybridized regression-adaptive particle swarm optimization approach
    Autorzy:
    Kumar, P. B.
    Sahu, C.
    Parhi, D. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/229923.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    navigation
    humanoid NAO
    RA
    APSO
    Petri-Net
    V-REP
    Opis:
    In the era of humanoid robotics, navigation and path planning of humanoids in complex environments have always remained as one of the most promising area of research. In this paper, a novel hybridized navigational controller is proposed using the logic of both classical technique and computational intelligence for path planning of humanoids. The proposed navigational controller is a hybridization of regression analysis with adaptive particle swarm optimization. The inputs given to the regression controller are in the forms of obstacle distances, and the output of the regression controller is interim turning angle. The output interim turning angle is again fed to the adaptive particle swarm optimization controller along with other inputs. The output of the adaptive particle swarm optimization controller termed as final turning angle acts as the directing factor for smooth navigation of humanoids in a complex environment. The proposed navigational controller is tested for single as well as multiple humanoids in both simulation and experimental environments. The results obtained from both the environments are compared against each other, and a good agreement between them is observed. Finally, the proposed hybridization technique is also tested against other existing navigational approaches for validation of better efficiency.
    Źródło:
    Archives of Control Sciences; 2018, 28, 3; 349--378
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Intelligent hybrid fuzzy logic system for damage detection of beam-like structural elements
    Autorzy:
    Sahu, S.
    Kumar, P. B.
    Parhi, D. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/281457.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
    Tematy:
    fuzzy logic
    differential evolution algorithm
    crack
    natural frequency
    Opis:
    Fuzzy logic has been used in different research fields for more than three decades. It has become a robust method to solve complex and intricate problems which are otherwise difficult to solve by traditional methods. But it still requires some human experience and knowledge. In the present study, an attempt is made to design a hybrid optimization technique for automatic formation of the fuzzy knowledge based rules using an evolutionary algorithm. This hybridization technique has been applied in the field of damage detection and location of cracks in cracked structural elements. In this paper, a robust fault diagnostic tool based on a differential evolution algorithm and fuzzy logic has been proposed. Theoretical and Finite Element analyzes are done to model the crack and to find the effect of the presence of cracks on changes of vibrational characteristic (natural frequencies) of a fixed-fixed beam. The inputs to DEA-FL system are the first three relative natural frequencies, and the outputs from the system are the relative crack depth and relative crack location. For the validation of the results obtained from the proposed method and to check the robustness of the controller, experimental analysis is performed. To find average error rates, the bootstrap method has been adopted.
    Źródło:
    Journal of Theoretical and Applied Mechanics; 2017, 55, 2; 509-521
    1429-2955
    Pojawia się w:
    Journal of Theoretical and Applied Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    In silico prediction and characterization of three-dimensional structure of actin-1 of Arabidopsis thaliana
    Autorzy:
    Sahu, M.
    Dehury, B.
    Sarmah, R.
    Sahoo, S.
    Sahu, J.
    Sarma, K.
    Sen, P.
    Modi, M.K.
    Barooah, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/80321.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    actin-1
    protein sequence
    Arabidopsis thaliana
    comparative modelling
    three-dimensional structure
    molecular dynamics simulation
    Opis:
    Actin-1 is a ubiquitous protein belonging to the reproductive class of Actin family in Arabidopsis thaliana . This protein is involved in the formation of filaments that are major components of the cytoskeleton. Despite the importance of this protein, very little information is available regarding its structure and function in plants. In this study, analysis of the protein sequence was done and comparative model of Actin-1 was constructed (UNIPROT ID: P0CJ46) from Arabidopsis thaliana using the crystal structure of Dictyostelium discoideum actin (PDB ID: 1NLV-A) as template employing Modeller version 9.9. The stable structure was generated by 5 nanosecond molecular dynamics simulation steps using GROMOS43A1 96 force field that characterized its structural and dynamic feature. The biochemical function of the final simulated structure was also investigated using PROFUNC. The molecular simulation study suggested that the modeled Actin-1 protein retain its stable conformation in aqueous solution. The predicted binding sites in the modeled Actin-1 protein are very informative for further protein-ligand interaction study.
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 4
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cardiovascular Load During Summer Work of Two Age Groups of Van-Rickshaw Pullers in West Bengal, India
    Autorzy:
    Sahu, S.
    Maity, S. G.
    Moitra, S.
    Sett, M.
    Haldar, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/90511.pdf
    Data publikacji:
    2013
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    van-rickshaw puller
    age
    hot environment
    cardiovascular load
    cardiac cost
    wiek
    gorące środowisko pracy
    układ krążenia
    serce
    Opis:
    Van-rickshaw is a popular mode of transport of people and merchandise in developing countries. The purposeof this study was to assess the effect of age on cardiovascular load of van-rickshaw pullers in the summer season (March–June) in real situations. In 142 participants, divided into 2 age groups (25–40 and 41–55 years), cardiovascular load was assessed on the basis of working and partial recovery heart rate (HR), predicted maximal HR, working maximal HR, average working HR, percentage of reserved HR, sum of recovery heart beats, percentage of recovery, relative and net cardiac cost, etc. Except for percentage of recovery, all parameters differed significantly between the groups and were significantly correlated with age. As this activity is very stressful, it places a heavy demand on the cardiovascular system. Therefore, age is an important factor for sustainability of the work, especially in a hot environment. Some ergonomic interventions are necessary to reduce cardiovascular load.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2013, 19, 4; 657-665
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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