Autor: Babu, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Study on thermodynamic properties of binary mixtures of diethyl carbonate with benzonitrile, benzaldehyde at different temperatures
Autorzy:: Sudhamsa, B.
Babu, M. S.
Narendra, K.
Powiązania:: https://bibliotekanauki.pl/articles/411534.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: binary mixtures
excess adiabatic compressibility
excess free length
excess speed of sound
Opis:: The speed of sound and density in binary liquid mixture of diethyl carbonate + benzonitrile, + benzaldehyde have been determined at temperatures 298.15, 308.15 and 318.15 K over the whole composition range. The data have been utilized to estimate the excess adiabatic compressibility (β^E), excess intermolecular free length (L_{f _E), excess speed of sound (u^E) at the above temperatures. The excess values have been found to be useful in estimating the strength of the interactions in the liquid mixtures.}
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2014, 19, 1; 1-7
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Spectrophotometric determination of copper as copper Piperazine
Autorzy:: Kavitha, Ch.
Babu, M. S.
Saraswathi, K.
Powiązania:: https://bibliotekanauki.pl/articles/412355.pdf
Data publikacji:: 2013
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: spectophotometry
Cu(II)
piperazine
Opis:: Spectrophotometric method for determination of Cu(II) in the trace quantities was developed by using piperazine as ligand in ammonium acetate medium. The Procedure developed was applied for the estimation Cu(II) in microgram quantities in the samples of alloys and the method was found to be simple, rapid and comparable to routine analytical methods for trace level analysis of metal ions in environmental samples in any laboratory where sophisticated and expensive instruments are not available. UV visible spectrophotometer is cost effective and available in almost all laboratories. The complexes of piperazine in aqueous solutions are not reported so far and this is the first attempt in this area of spectrophotometric analysis.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2013, 8, 3; 205-209
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Microstructure And Thermoelectric Properties Of TAGS-90 Compounds Fabricated By Mechanical Milling Process
Mikrostruktura i właściwości termoelektryczne związków TAGS-90 wytworzonych przez mielenie
Autorzy:: Kim, H.-S.
Babu, M.
Hong, S.-J.
Powiązania:: https://bibliotekanauki.pl/articles/353404.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: TAGS-90
thermoelectric properties
high-energy milling
SPS
właściwości termoelektryczne
mielenie wysokoenergetyczne
Opis:: TAGS-90 compound powder was directly prepared from the elements by high-energy ball milling (HEBM) and subsequently consolidated by a spark plasma sintering (SPS). Effect of milling time on the microstructure and thermoelectric properties of the samples were investigated. The particle size of fabricated powders were decreased with increasing milling time, finally fine particles with ~1μm size was obtained at 90 min. The SPS samples exhibited higher relative densities (>99%) with fine grain size. X-ray diffraction analysis (XRD) and energy dispersion analysis (EDS) results revealed that all the samples were single phase of GeTe with exact composition. The electrical conductivity of samples were decreased with milling time, whereas Seebeck coefficient increased over the temperature range of RT~450°C. The highest power factor was 1.12×10^-3 W/mK² obtained for the sample with 90 min milling at 450°C.
Źródło:: Archives of Metallurgy and Materials; 2015, 60, 2B; 1231-1234
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Ethnobotanical study of traditional herbal plants used by local people of Seshachalam Biosphere Reserve in Eastern Ghats, India
Autorzy:: Reddy, A.M.
Babu, M.V.S.
Rao, R.R.
Powiązania:: https://bibliotekanauki.pl/articles/71192.pdf
Data publikacji:: 2019
Wydawca:: Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:: ethnobotany
ethnomedicine
traditional plant
herbal plant
species list
drug development
local people
people
Seshachalam Biosphere Reserve
India
Opis:: Introduction: Ethnobotany is the study of medicinal plants used by local people, with particular importance of old-styled tribal beliefs and information. Ethnobotanical studies focus on ethnic knowledge of Adivasi people and development of data bases on ethnic knowledge but also focuses on preservation and regeneration of traditional beliefs and maintenance of traditional knowledge. Objective: The aim of present study is to highlight the traditional actions of herbal plants used by inborn Yanadi community of Seshachalam Biosphere Reserve, Eastern Ghats of Andhra Pradesh, India. Methods: The ethnobotanical field survey was conducted according to the methods adopted by some authors. In-depth interviews, interactions were conducted with tribal physicians of Yanadi, Nakkala and Irula as well as other tribes practicing and experiencing the use of plant-based medicine. A normal inquiry form was used to gather the appropriate data on herbal plants and their usage of inborn people’s lifestyle. Extensive consultations among local people and detailed documentation of the usage of plants were carried out in 2014–2017. The aged outmoded opinions and imposts of indigenous people conceded on by word of opening were documented. Results: A total of 266 medicinally used plant species belonging to 216 genera and 88 families were recognized with help of inborn herbal healers. The study also chronicled the mode of herbal arrangements, mode of the use of herbal plants in various disorders. The study exposed that native people of Seshachalam Biosphere Reserve have good medicinal information and also have preserved plant-based medicinal system of their ascendants used all their diseases. Most of medicinal plants are used in the treatment of indigestion, snake bite and skin diseases. The authors feel that this type of study certainly helps identify ethnic leads for drug development in future. Conclusions: The ethnobotanical investigation of Seshalam Biosphere area has revealed that the tribes possess good knowledge on plant-based medicine but as they are towards in advanced exposure to transformation, their information on traditional uses of plants is slowly getting eroded. The authors plead for intensive crosscultural studies involving all ethnic tribes in the country for prioritizing or short listing of ethnic leads for various disorders for ultimately developing global level drugs for human welfare and economy development.
Źródło:: Herba Polonica; 2019, 65, 1
0018-0599
Pojawia się w:: Herba Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Studies of densities, viscosities and ultrasonic speeds of binary mixtures containing isopropyl alcohol and ketones at different temperatures
Autorzy:: Srinivas, S. S. J.
Tulasi Koteswari Bai, B.
Babu Rao, K.
Narendra, K.
Sarath Babu, M.
Powiązania:: https://bibliotekanauki.pl/articles/412144.pdf
Data publikacji:: 2013
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: ultrasonic velocity
density
viscosity
acoustic parameters
Opis:: The densities, viscosities and ultrasonic velocities of binary liquid mixtures of Isopropyl alcohol with acetophenone and methyl isobutyl ketone (MIBK) have been measured at temperatures 298.15 and 308.15 K over the entire range of mole fraction. From these data, acoustical parameters such as adiabatic compressibility (β), free volume (Vf) and free length (Lf) have been estimated using the standard relations. The results are interpreted in terms of molecular interactions present in the mixtures.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2013, 10, 2; 151-158
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Water absorption, impact resistance and strength reliability of concrete incorporating sintered fly ash aggregate under drop weight impact load
Autorzy:: Baskaran, Ranjith Babu
Nagarajan, M.
Powiązania:: https://bibliotekanauki.pl/articles/38891513.pdf
Data publikacji:: 2023
Wydawca:: Instytut Podstawowych Problemów Techniki PAN
Tematy:: sintered fly ash aggregate
water absorption
compressive strength
impact test
reliability analysis
Opis:: ASTM and ACI methods were used to determine the water absorption and impact resistance of M30 grade concrete containing different percentages of sintered fly ash aggregate (SFA) ranging from 20%, 40%, 60%, 80%, and 100%. In the concrete laboratory, the parameters of the concrete mix, including fresh density, slump value, dry density, compressive strength, and impact resistance, were determined. The fresh and dry densities of concrete mix decrease as the quantity of SFA used as substitute increases. The 100% substitution of SFA in concrete results in a slump value of 200 mm, a fresh density of 1946 kg/m³, a dry density of 1911 kg/m³, and water absorption of 3.5%, with a compressive strength of 12.3 MPa. For the drop weight impact resistance test, reliability analysis was conducted to determine the level of reliability of each concrete mix for varying SFA. Using reliability analysis, the failure analysis owing to impact load determined the energy absorption of the concrete mix.
Źródło:: Engineering Transactions; 2023, 71, 2; 197-211
0867-888X
Pojawia się w:: Engineering Transactions
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Activity pattern and food habits of Grizzled Giant Squirrel (Ratufa macroura) in Srivilliputhur Grizzled Squirrel Wildlife Sanctuary, Tamil Nadu, Southern India
Autorzy:: Babu Rao, G.
Nagarajan, R.
Saravanan, M.
Baskaran, N.
Powiązania:: https://bibliotekanauki.pl/articles/11307.pdf
Data publikacji:: 2015
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Opis:: Activity pattern and food habits of Grizzled Giant Squirrel were investigated in Srivilliputhur Grizzled Giant Squirrel Wildlife Sanctuary from December 2011 to March 2012. Focal animal sampling method was used to record the activity pattern and food habits. Sampling was done in three different habitats viz., Private land, Reserve forest and Temple land. Feeding was the dominant activity accounting for 35.4% of the activity period. Bimodal feeding pattern was observed in Squirrels, the observations were made from early morning hours to till (0600-1800) late evening hours. The Squirrels feed upon 23 plant species; among them 11 were trees species, 10 climbers and 2 shrubs. Seven types of plant parts were used by Squirrels. Leaf consumption was high (38%) followed by fruit (24%). The high consumption of leaves was due to easy availability of leaves and limited availability of other plant parts. Squirrel‟s invasion into Private Land and Temple Land was observed which can be attributed to abundance and easy availability of food plants, canopy continuity and less predatory pressure.
Źródło:: International Letters of Natural Sciences; 2015, 05
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Activity-travel patterns of workers and students: a study from Calicut city, India
Autorzy:: Babu, D.
Balan, S.
Anjaneyulu, M. V. L. R.
Powiązania:: https://bibliotekanauki.pl/articles/223746.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: travel
travelers behaviours
workers
students
activity-based
developing country
podróż
zachowania podróżnych
pracownicy
studenci
aktywność
kraje rozwijające się
Opis:: Travel behaviour studies in activity-based perspective treat travel as a result of individual’s desire to participate in different activities. This approach is more significant in the context of developing countries, as the transportation problems are more severe here. Since, commuters contribute to a major share in the travel, understanding their travel behaviour is essential. This paper aims to explore the travel behaviour of commuters in Calicut city, Kerala State, India and thereby model their activity-travel patterns. Household, personal and activity-travel information from 12920 working people and 9684 students formed the database for this study. The data collection was performed by means of home-interview survey by face-to-face interview technique. From preliminary analysis, several simple and complex tours were identified for the study area. Working people’s work participation and students’ education activity participation decision are modelled as mandatory activity participation choice in a binary logit modelling framework. Results of this mandatory activity participation model revealed that male workers are more likely to engage in work compared to females. Presence of elderly persons is found to negatively influence the work participation decisions of workers. This may be due to the fact that, work activity may be partially or completely replaced with the medical requirements of the elderly. The chances for work activity participation increase with increase in number of two-wheelers at home. In the case of students, as the education level increases, they are found to be less likely to participate in education activities. Students are observed to follow simple activity-travel pattern. Complex tours are found to be performed by males, compared to females. Activity-travel pattern of the study group are predicted using the developed models. The percentages correctly predicted indicate reasonably good predictability for the models. These kind of studies are expected to help the town planners to better understand city’s travel behaviour and thus to formulate well-organised travel demand management policies.
Źródło:: Archives of Transport; 2018, 46, 2; 21-32
0866-9546
2300-8830
Pojawia się w:: Archives of Transport
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Automatic Fault Classification for Journal Bearings Using ANN and DNN
Autorzy:: Narendiranath Babu, T.
Aravind, A.
Rakesh, A.
Jahzan, M.
Rama Prabha, D.
Ramalinga Viswanathan, M.
Powiązania:: https://bibliotekanauki.pl/articles/177579.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: journal bearing
fault classification
artificial neural networks
deep neural networks
Opis:: Journal bearings are the most common type of bearings in which a shaft freely rotates in a metallic sleeve. They find a lot of applications in industry, especially where extremely high loads are involved. Proper analysis of the various bearing faults and predicting the modes of failure beforehand are Essentials to increase the working life of the bearing. In the current study, the vibration data of a journal Bering in the healthy condition and in five different fault conditions are collected. A feature extraction metod is employed to classify the different fault conditions. Automatic fault classification is performed using artificial neural networks (ANN). As the probability of a correct prediction goes down for a higher number of faults in ANN, the method is made more robust by incorporating deep neural networks (DNN) with the help of autoencoders. Training was done using the scaled conjugate gradient algorithm and the performance was calculated by the cross entropy method. Due to the increased number of hidden layers in DNN, it is possible to achieve a high efficiency of 100% with the feature extraction method.
Źródło:: Archives of Acoustics; 2018, 43, 4; 727-738
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Identification of volatile organic compound producing Lignicolous fungal cultures from Gujarat, India
Autorzy:: Nagadesi, Praveen Kumar
Arya, Arun
Babu, Duvvi Naveen
Prasad, K. S. M.
Devi, P. P.
Powiązania:: https://bibliotekanauki.pl/articles/1178801.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: India
Lenzites sterioides
Lignicolous fungi
Volatile organic compound (VOC)
Opis:: This study aims to identify the lignicolous basidiomycetes species that synthetize volatile organic compounds with potential applications in food industry, cosmetics, perfumery and agriculture. We have collected fruiting bodies from different woody plants and the lignicolous basidiomyctes species were identified by their macroscopic and microscopic characteristics. From the context of the fresh fruiting bodies small fragments of dikaryotic mycelium were extracted and inoculated on PDA and MEA media for isolation and pure cultures are kept in dark at a temperature of 25°C. 11 species of lignicolous basidiomycetes, belonging to 6 families and 5 orders were isolated in pure culture. The isolates were analyzed in vitro and the main characteristics that were observed are: the general aspect of the surface and the reverse of the colonies, the changing in colour and the growth rate of the mycelium and also the specific odour which indicates the presence of the organic volatile compounds. for the first time lignicolous fungi like Flavodon flavus (Klotz.) Ryv., Ganoderma lucidum(Curtis) P. Karst, Hexagonia apiaria (Pers.) Fr., Lenzites betulina (L.) Fr. Lenzites eximia Berk. & M.A. Curtis, Lenzites sterioides (Fr.) Ryv., Navisporus floccosus (Bres.) Ryv., Phellinus gilvus (Schwein.) Pat., and Trametes pini (Thore) Britzelm. were producing characteristic smell that indicates presence of Volatile organic compounds. For the first time from Gujarat, India the Volatile organic compound producing fungi were identified and their culture characters also described.
Źródło:: World Scientific News; 2017, 90; 150-165
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Impact of artificial coastal protection structures on Ascidians settlement along the Tamil Nadu coast, India
Autorzy:: Jebakumar, J.P.P.
Nandhagopal, G.
Babu, B.R.
Ragumaran, S.
Ramakritinan, C.M.
Ali, A.J.
Arshan, M.K.
Ravichandran, V.
Powiązania:: https://bibliotekanauki.pl/articles/48441.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: artificial structure
urban sprawl
landscape change
non-native species
Tamil Nadu coast
India
Źródło:: Oceanologia; 2019, 61, 1
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Long wavelength type-II superlattice barrier infrared detector for CubeSat hyperspectral thermal imager
Autorzy:: Rafol, Sir B.
Gunapala, Sarath D.
Ting, David Z.
Soibel, Alexander
Khoshakhlagh, Arezou
Keo, Sam A.
Pepper, Brian J.
Hill, Cory J.
Maruyama, Yuki
Fisher, Anita M.
Sood, Ashok
Zeller, John
Wright, Robert
Lucey, Paul
Nunes, Miguel
Flynn, Luke
Babu, Sachidananda
Ghuman, Parminder
Powiązania:: https://bibliotekanauki.pl/articles/2204204.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:: type-II superlattice
focal plane array
infrared detector
quantum efficiency
noise equivalent difference temperature
dark current density
anti-reflective coating
Opis:: The hyperspectral thermal imaging instrument for technology demonstration funded by NASA’s Earth Science Technology Office under the In-Space Validation of Earth Science Technologies program requires focal plane array with reasonably good performance at a low cost. The instrument is designed to fit in a 6U CubeSat platform for a low-Earth orbit. It will collect data on hydrological parameters and Earth surface temperature for agricultural remote sensing. The long wavelength infrared type-II strain layer superlattices barrier infrared detector focal plane array is chosen for this mission. With the driving requirement dictated by the power consumption of the cryocooler and signal-noise-ratio, cut-off wavelengths and dark current are utilized to model instrument operating temperature. Many focal plane arrays are fabricated and characterised, and the best performing focal plane array that fulfils the requirements is selected. The spectral band, dark current and 8-9.4 μm pass band quantum efficiency of the candidate focal plane array are: 8-10.7 μm, 2.1∙10ˉ⁵ A/cm², and 47%, respectively. The corresponding noise equivalent difference temperature and operability are 30 mK and 99.7%, respectively. Anti-reflective coating is deposited on the focal plane array surface to enhance the quantum efficiency and to reduce the interference pattern due to an absorption layer parallel surfaces cladding material.
Źródło:: Opto-Electronics Review; 2023, 31, Special Issue; art. no. e144569
1230-3402
Pojawia się w:: Opto-Electronics Review
Dostawca treści:: Biblioteka Nauki

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