Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Pal, S." wg kryterium: Autor


Tytuł:
Postural Stability of Sitting Women
Autorzy:
Nag, P. K.
Vyas, H.
Nag, A.
Pal, S.
Powiązania:
https://bibliotekanauki.pl/articles/90231.pdf
Data publikacji:
2013
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
woman
chair sitting
postural stabilometry
kobieta
krzesło
stabilność postawy
Opis:
The study examined the utility of stabilometric dimensions and explored whether the changes in sitting postures were manifested in functional measures of postural control. Eleven women participated in the study, which used 11 chair sitting postures: arms on laps or arms right angled; armrest at a height of 17, 20 and 23 cm; with or without backrest; slouch or straight back; legs right angled at knees or crossed legs. The backrest and armrest shifted 16.3% of body weight from a seat pan. The characteristics of stabilometric dimensions evaluated the influence of seat components and sitting behaviour on postural balance. The study attempted to evaluate stability and its application in human–seat interface design.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2013, 19, 4; 583-595
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of pre-jamming indication parameter during blind backfilling technique
Autorzy:
Panda, S.
Pal, S. K.
Murthy, P. V. S. N.
Powiązania:
https://bibliotekanauki.pl/articles/91940.pdf
Data publikacji:
2016
Wydawca:
Główny Instytut Górnictwa
Tematy:
subsidence
abandoned mine
hydraulic gravity blind backfilling
data acquisition system
pressure signature
pre-jamming indication parameter
osiadanie
opuszczona kopalnia
system akwizycji danych
pole ciśnieniowe
Opis:
Hydraulic blind backfilling is used to reduce subsidence problems above old underground water-logged coal mines. This paper describes experimental research on a fully transparent model of a straight underground mine gallery. An automatic data acquisition systemwas installed in the model to continuously record the sand and water flowrates along with the inlet pressure of the slurry near the model's inlet. Pressure signature graphs and pressure loss curves with bed advancement under different flow conditions are examined. Pressure signature analyses for various flowrates and sand slurry concentrations are conducted to evaluate a pre-jamming indication parameter, which could be used to indicate the arrival of the final stage of filling.
Źródło:
Journal of Sustainable Mining; 2016, 15, 3; 100-107
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sensitivity enhancement of metamaterial-based surface plasmon resonance biosensor for near infrared
Autorzy:
Pal, S.
Prajapati, Y. K.
Saini, J. P.
Singh, V.
Powiązania:
https://bibliotekanauki.pl/articles/173477.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
metamaterials
sensor sensitivity
reflectance
evanescent field
Opis:
The present study investigates the angular response and sensitivity of a surface plasmon resonance biosensor with metamaterial, by taking the advantage of the remarkable property of metamaterials. The proposed biosensor numerically shows that silver with a metamaterial layer enhances the sensitivity. The thickness of metamaterial and silver layer has been optimized. On comparing these results with a conventional surface plasmon resonance biosensor, it is observed that the sensitivity of the proposed biosensor is improved by introducing the metamaterial. The proposed biosensor has a sensitivity 6.3124 times higher than that of the conventional surface plasmon resonance sensor.
Źródło:
Optica Applicata; 2016, 46, 1; 131-143
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Rock Properties on Wear of M and SR Grade Rubber with Varying Normal Load and Sliding Speed
Autorzy:
Pal, S. K.
Rao, K. U. M.
Kumar, P. S.
Rajasekar, R.
Powiązania:
https://bibliotekanauki.pl/articles/356996.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
rock
rubber
wear
shear strength
surface roughness
Opis:
Rubbers are interesting materials and are extensively used in many mining industries for material transportation. Wear of rubber is a very complex phenomenon to understand. The present study aims to explain the influence of rock properties on wear of M and SR grade rubber used in top cover of conveyor belts. Extensive laboratory experiments were conducted under four combinations of normal load and sliding speed. The wear of both the rubber types were analyzed based on the rock properties like shear strength, abrasivity index and fractal dimension. A fully instrumented testing set up was used to study the wear of rubber samples under different operating conditions. In general, wear was higher for M grade rubber compared to SR grade rubber. Increase in shear strength of rocks depicts decreasing trend for the wear of M and SR grade rubber at lower load conditions. Moreover, a higher load combination displays no definite trend in both the rubbers. The strong correlation between the wear of rubber and frictional power for all rubber-rock combinations has given rise to the parameter A, which reflects the relative compatibility between the rubber and rock. Increase of Cerchar’s Abrasivity Index of rocks shows gradual enhancement in wear for M grade rubber in all the load and speed combinations whereas, it fails in SR grade rubber due to its higher strength. The wear of rubber tends to decrease marginally with the surface roughness of rocks at highest normal load and sliding speed in M grade rubber. However, the wear of M and SR grade rubber is influenced by the surface roughness of rocks.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 3; 1787-1793
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Erythrocyte functional status and lipid profile of coal mine workers of West Bengal, India
Autorzy:
Prasad, S.K.
Bhattacharjee, A.
Bandyopadhyay, P.
Pal, S.
Syamal, A.K.
Mukherjee, S.
Powiązania:
https://bibliotekanauki.pl/articles/1916566.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
Coal miners
antioxidant insufficiency
blood lipid profiles
erythrocyte osmotic fragility
oxidative stress
Opis:
Purpose: Despite people suffering from several forms of ill health, constant exposure to toxic wastes and chronic diseases as a result of mining, there is a tragic gap in the availability of ‘scientific’ studies and data on the health hazards of mining in India. This study was proposed to understand better the relationship between occupational exposure to coal, blood lipid profiles and red blood cell (RBC) functional status of coal workers. Materials and methods: Blood samples were obtained from coal miners (n=32) of an underground mine in West Bengal. Blood lipid profiles and RBC functional status were determined. Students’ t-test and Pearson correlation analyses were completed to analyze the data. Results: Compared to the control subjects, significantly higher levels of cholesterol (p<0.01), triglycerides (p<0.01), LDL (p<0.001), and VLDL (p<0.001) were observed in coal miners. HDL, Hb, Na+-K+ATPase and SOD activity were significantly (p<0.001) lower in coal miners, whereas MDA levels (p<0.001) and osmotic fragility in coal miners were increased significantly (p<0.01). Conclusions: Our study indicates that elevated MDA and antioxidant insufficiency caused disruption in the structural integrity of erythrocyte, which may be a pathophysiological mechanism in the progression of disease in coal miners. Also, cardiovascular disease risk factors were more prevalent in the coal miners.
Źródło:
Progress in Health Sciences; 2014, 4, 2; 14-21
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Review on Parameters Influencing the Rice Breakage and Rubber Roll Wear in Sheller
Autorzy:
Prabhakaran, P.
Ranganathan, R.
Muthu Kumar, V.
Rajasekar, R.
Devakumar, L.
Pal, S. K.
Powiązania:
https://bibliotekanauki.pl/articles/351700.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
rice
rice breakage
rubber roll sheller
Opis:
The present review deals with parameters influencing the rice breakage during rice milling operations and the effect of rubber roll Sheller in rice husk removal process. The main objective of rice milling system is to remove the husk and bran layer to produce the white rice. In this process, rubber roll sheller is used to remove husk from the grains by friction process. If the rubber material is too soft, there may not be sufficient shear force to husk the paddy. Wear will be minimum for rubber material with high hardness but indeed it pronounce the breakage of rice. Hence, for efficient husking the rubber roll material should possess the balance of physico-mechanical properties. Rice breakage depends on several other parameters like the type of harvest, drying temperature, drying methods, physical characteristics of paddy, husking characteristics, paddy moisture content, rubber roller speed, rubber roll pressure, paddy feed rate and fissures. Rubber roll wear depends on the type of rubber material attached to the roller, feed rate, roller speed, pressure etc.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 3; 1875-1880
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soil temperature prediction from air temperature for alluvial soils in lower Indo-Gangetic plain
Autorzy:
Barman, D.
Kundu, D.K.
Pal, S.
Chakraborty, A.K.
Jha, A.K.
Mazumdar, S.P.
Saha, R.
Bhattacharyya, P.
Powiązania:
https://bibliotekanauki.pl/articles/25358.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Opis:
Soil temperature is an important factor in biogeochemical processes. On-site monitoring of soil temperature is limited in spatio-temporal scale as compared to air temperature data inventories due to various management difficulties. Therefore, empirical models were developed by taking 30-year long-term (1985-2014) air and soil temperature data for prediction of soil temperatures at three depths (5, 15, 30 cm) in morning (0636 Indian standard time) and afternoon (1336 Indian standard time) for alluvial soils in lower Indo-Gangetic plain. At 5 cm depth, power and exponential regression models were best fitted for daily data in morning and afternoon, respectively, but it was reverse at 15 cm. However, at 30 cm, exponential models were best fitted for both the times. Regression analysis revealed that in morning for all three depths and in afternoon for 30 cm depth, soil temperatures (daily, weekly, and monthly) could be predicted more efficiently with the help of corresponding mean air temperature than that of maximum and minimum. However, in afternoon, prediction of soil temperature at 5 and 15 cm depths were more precised for all the time intervals when maximum air temperature was used, except for weekly soil temperature at 15 cm, where the use of mean air temperature gave better prediction.
Źródło:
International Agrophysics; 2017, 31, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Edible insects: future of human food – a review
Autorzy:
Pal, P.
Roy, S.
Powiązania:
https://bibliotekanauki.pl/articles/11408.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Opis:
The practice of eating insects is known as entomophagy. Many animals, such as spiders, lizards and birds, are entomophagous, as are many insects. People throughout the world have been eating insects as a regular part of their diets for millennia. As people in rural areas suffer from under nutrition, especially protein-energy malnutrition (PEM) in Africa, Latin America and Asia, alternative nutritional food sources are needed. From ants to beetle larvae – eaten by tribes in Africa and Australia as part of their subsistence diets – to the popular, crispy-fried locusts and beetles enjoyed in Thailand, it is estimated that insect-eating is practised regularly by at least 2 billion people worldwide. More than 1900 insect species have been documented in literature as edible, most of them in tropical countries. The most commonly eaten insect groups are beetles, caterpillars, bees, wasps, ants, grasshoppers, locusts, crickets, cicadas, leaf and plant hoppers, scale insects and true bugs, termites, dragonflies and flies. The purpose of the present review is to determine the status of present research in the context of the potentiality of insects as alternative food source to cope up with the emerging problem of global food crisis.
Źródło:
International Letters of Natural Sciences; 2014, 21
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Group decision making using interval-valued intuitionistic fuzzy soft matrix and confident weight of experts
Autorzy:
Das, S.
Kar, S.
Pal, T.
Powiązania:
https://bibliotekanauki.pl/articles/91665.pdf
Data publikacji:
2014
Wydawca:
Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:
multiple attribute group decision making
MAGDM
interval-valued intuitionistic fuzzy soft matrix
IVIFSM
interval-valued intuitionistic fuzzy soft sets
IVIFSSs
Opis:
This article proposes an algorithmic approach for multiple attribute group decision making (MAGDM) problems using interval-valued intuitionistic fuzzy soft matrix (IVIFSM) and confident weight of experts. We propose a novel concept for assigning confident weights to the experts based on cardinals of interval-valued intuitionistic fuzzy soft sets (IVIFSSs). The confident weight is assigned to each of the experts based on their preferred attributes and opinions, which reduces the chances of biasness. Instead of using medical knowledgebase, the proposed algorithm mainly relies on the set of attributes preferred by the group of experts. To make the set of preferred attributes more important, we use combined choice matrix, which is combined with the individual IVIFSM to produce the corresponding product IVIFSM. This article uses IVIFSMs for representing the experts’ opinions. IVIFSM is the matrix representation of IVIFSS and IVIFSS is a natural combination of interval-valued intuitionistic fuzzy set (IVIFS) and soft set. Finally, the performance of the proposed algorithm is validated using a case study from real life.
Źródło:
Journal of Artificial Intelligence and Soft Computing Research; 2014, 4, 1; 57-77
2083-2567
2449-6499
Pojawia się w:
Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of AERMOD model in air quality (PM10) impact assessment of selected opencast mines in The Jharia Coalfield, Jharkhand, India
Autorzy:
Kundu, S.
Pal, A. K.
Powiązania:
https://bibliotekanauki.pl/articles/207806.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
PM10
pollution
opencast mines
emission factors
zanieczyszczenie
kopalnia odkrywkowa
wskaźnik emisji
Opis:
The study mainly delineates the application of AERMOD to evaluate PM10 concentrations for the selected opencast mines in The Jharia coalfield. AERMOD estimated PM10 concentration profiles were developed on the basis of evaluated emission rates of salient coal mining activities. While comparing these estimated values with monitored values of PM10, the evaluated indices of agreement were found to be 0.86, 0.84 and 0.88 during winter and 0.94, 0.68 and 0.87 during summer for the Katrasgarh, Muraidih and Rajapur opencast mines, respectively. In a like manner, performance evaluation of AERMOD evaluated concentrations over actual field concentration using a set of five statistical tools, indicated more or less fairly good prediction for both the seasons. Further, USEPA AP-42 based emission factor data for more or less identical mining activities were also used for AERMOD run in order to evaluate PM10 profiles. Correlation analysis indicated 71–89% and 62–85% model accuracy for winter and summer, respectively.
Źródło:
Environment Protection Engineering; 2018, 44, 4; 5-21
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of through transmission laser welding of Nylon6 by finite element simulation
Autorzy:
Gupta, S. K.
Pal, P. K.
Powiązania:
https://bibliotekanauki.pl/articles/407048.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
laser transmission welding
simulation
through transmission laser welding
glass transition temperature
finite element method
Opis:
Over the years laser welding has evolved as a fabrication process capable of overcoming the limitations of conventional joining methodologies. It facilitates the welding of diverse range of materials like metals, non-metals, polymers etc. Laser transmission welding is a technique employed for fabricating intricate shapes/contours in polymers with better precision compared to the other conventional processes. Nylon6, a synthetic semi-crystalline polymer is utilized as an engineering thermoplastic due to its high strength and temperature resistant properties. In the earlier researches, various welding techniques were employed for the fabrication of polymers and metals keeping the laser beam stagnant, and much emphasis was given only to temperature distribution along the different axes and limited attention was given to residual stress analysis. Therefore, in this research work, a three-dimensional time-dependent model using a moving laser beam is used to fabricate unreinforced Nylon6 specimens.
Źródło:
Management and Production Engineering Review; 2018, 9, 4; 56-69
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A conceptual approach of information technology in environment science: research area and prospects of database generation
Autorzy:
Talapatra, S.N.
Nandy, A.
Pal, P.
Powiązania:
https://bibliotekanauki.pl/articles/11426.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
information technology
environmental science
environmental information
environmental technology
research area
prospect
computer database
environmental management
Opis:
The data of individual sector on environmental science is compiled in information technology (IT) through database software known as Environment Information (EI). Environment information is an easy accessible database in individual sector, where people can know both new research scope and impact on environment. The present study deals to inform that EI is an area, in which the knowledge of environmental science and IT is combined through database software. In this paper, individual research area, data format and beneficial aspects on environmental science is tabulated for EI. There are several research areas in which the data viz. ecology and ecosystem, biodiversity and conservation of important species, health hazards by diseases, health care facilities, toxicological aspects, wastes types, source generation and management, alternative energy generation facilities, environment education and awareness etc. It is a conceptual approach to gather knowledge of environment related problems and prospects and can easily make a database for the intellectuals, academicians, scientists, regulatory authorities, policy makers, researchers, students etc. These help to know benefits in research area, regulatory process, decision making and proper environment management. People can easily access compiled database in an individual sector of environment science.
Źródło:
International Letters of Natural Sciences; 2014, 10
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biomass fuel cell based distributed generation system for Sagar Island
Autorzy:
Kumar, P.
Sikder, P. S.
Pal, N.
Powiązania:
https://bibliotekanauki.pl/articles/200813.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
biomass
fuel cell
distributed generation systems
inverter
cost analysis
biomasa
ogniwo paliwowe
falownik
analiza kosztów
generacja rozproszona
Opis:
Sustainable development of an area is highly dependable on reliable electrical energy supply. Due to the depletion of fossil fuels, and the contamination of the environment due to the generation of energy from primary energy sources, the energy sector is reforming and shifting towards a new era where renewable energy sources will become the primary focus of attention. At present, energy researchers and government organizations are interested in a distributed generation system using local renewable energy sources to electrify the rural areas situated far away from our mainland. Here, a biomass-based power supply system is being analyzed and compared with other potential power supply systems for Sagar Island. Sagar Island is the world’s largest river-based island situated in the Sundarban deltaic complex, where the potential of biomass is huge due to the availability of natural forests, barren coastal areas full of weeds, agricultural by-products, cattle manure and waste materials from other sources. Here, an attempt has been made to provide sustainable electrical energy to the rural areas of the isolated Sagar Island for the sustainable development of the local people. This was done by means of using biomass and a fuel cell based electricity generation system.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2018, 66, 5; 665-674
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Status and Scope of the Jute Industry in India in Comparison to other World Producers
Analiza produkcji włókien z juty i wyrobów jutowych w Indiach w porównaniu do innych producentów światowych
Autorzy:
Bag, S. N.
Kumar, U. C.
Pal, A. K.
Powiązania:
https://bibliotekanauki.pl/articles/234020.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:
twill
bags
hessian
jute goods
sacking
diagonal
torby
włókno jutowe
wyroby z juty
worki jutowe
Opis:
India is the leading producer of raw jute and jute products in the world. India’s sacking goods production comprises 75% of the total goods production and B twill bags, used for packaging rice and wheat, and contributes 85% of the total sacking bag production. Still there exists an increasing trend of imports of jute products due to the increase in the domestic consumption of conventional jute goods. Bangladesh is the major exporter in jute goods, with India in 2nd position. Hessian cloth and bags are the major exporting items of jute goods from India. In the overall situation, there exists a unique opportunity of the jute industry to improve the social and economic conditions of the states concerned as well as the country. Being the preferred sector in raw jute production due to suitable topographical conditions, emphasis now needs to be placed on modernization of the jute sector with a view to developing a viable and efficient jute manufacturing sector in the country.
Indie są wiodącym producentem włókien jutowych i produktów z juty. Indie produkują 75%-85% światowej produkcji worków opakunkowych. Istnieje wzrastający trend zużycia worków jutowych w związku ze zwiększającym się zapotrzebowaniem krajowym. Drugie miejsce w produkcji wyrobów jutowych zajmuje Bangladesz. Istnieją korzystne warunki do dalszej poprawy rozwoju przemysłu juty, w tym zwiększenie modernizacji i wydajności przemysłu.
Źródło:
Fibres & Textiles in Eastern Europe; 2016, 6 (120); 19-25
1230-3666
2300-7354
Pojawia się w:
Fibres & Textiles in Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Voltage Security Assessment of Power System
Autorzy:
Chowdhury, Amit Kumar
Mondal, Surajit
Alam, S. K. Mehboob
Pal, Jagadish
Powiązania:
https://bibliotekanauki.pl/articles/1193939.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
1P-1Q Method
Fast Decoupled Load flow
Voltage Collapse
Voltage Performance index
Voltage Stability
Voltage insecurity
Opis:
This paper deals with the security aspects of power system by evaluating the severity of transmission line outage. Voltage security assessment is made by determining the power flow in the line using load flow for each contingency. The severity of contingency is measured using a scalar index called Voltage performance index. 1P-1Q Method and Fast Decoupled load flow are used as approximate and exact load flow methods for Voltage security assessment respectively. Contingency analysis is carried out and ranked lists in the decreasing order of severity based on Voltage Performance Index values are prepared for standard test systems. The severity of line is evaluated and compared using these load flow methods.
Źródło:
World Scientific News; 2015, 21; 36-50
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies