Pub Date : 2019-07-01DOI: 10.22232/stj.2019.07.02.13
M. Upadhyay, A. Thakur, Mohan Daimary
In my present paper, Tin sulfide nanoparticles were successfully synthesized using wet chemical process and studied their structural properties. The prepared nanoparticles were characterized by X-Ray diffraction (XRD) and Raman spectroscopy. The XRD confirms the Tin Sulfide nanoparticles possessing orthorhombic structure having particle size is approx. 12.72 nm. The Raman spectrum shows the frequency of the phonon in these nanoparticles and the Raman modes of Tin Sulfide nanoparticles were found to shifts towards lower wave number side.
{"title":"Synthesis and Chraracterization of Tin Sulfide Nanoparticles","authors":"M. Upadhyay, A. Thakur, Mohan Daimary","doi":"10.22232/stj.2019.07.02.13","DOIUrl":"https://doi.org/10.22232/stj.2019.07.02.13","url":null,"abstract":"In my present paper, Tin sulfide nanoparticles were successfully synthesized using wet chemical process and studied their structural properties. The prepared nanoparticles were characterized by X-Ray diffraction (XRD) and Raman spectroscopy. The XRD confirms the Tin Sulfide nanoparticles possessing orthorhombic structure having particle size is approx. 12.72 nm. The Raman spectrum shows the frequency of the phonon in these nanoparticles and the Raman modes of Tin Sulfide nanoparticles were found to shifts towards lower wave number side.","PeriodicalId":22107,"journal":{"name":"Silpakorn University Science and Technology Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74296758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-01DOI: 10.22232/stj.2019.07.02.05
Lal hmunsiama, Seung-Mok Lee
In this study, the iron-pillared clay nanocatalyst (ICN) was employed as a nanocatalyst for decolorization of methylene blue (MB) in aqueous solutions without hydrogen peroxide. The changes in clay structure after the incorporation of iron-oxide particles was studied with the help of XRD analytical data. The SEM micrographs showed higher heterogeneous structure of ICN compared to pristine clay and the specific surface area of ICN (82.54 m2/g) is considerably higher than the unmodified clay (63.41 m2/g). Further, the EDX analytical data indicate the successful incorporation of iron-oxide into bentonite clay. Batch experiments showed that ICN could degrade MB within pH 3.0 to 11.0 and it is efficient even at higher concentrations. The degradation is very fast and more than 90% is removed within 30 mins. A small amount of ICN is effective for degradation of MB and the reusability test showed that ICN can be reuse for several times for the degradation of MB in aqueous solutions. The effect of scavengers studies indicate that the ·OH radicals generated from the ICN are responsible in the degradation of MB. This study indicates that ICN must be low cost and environmentally friendly active nanocatalyst for degradation of MB present in aquatic environment.
{"title":"Potential of Iron Pillared Clay as Active Nanocatalyst for Rapid Decolorization of Methylene Blue","authors":"Lal hmunsiama, Seung-Mok Lee","doi":"10.22232/stj.2019.07.02.05","DOIUrl":"https://doi.org/10.22232/stj.2019.07.02.05","url":null,"abstract":"In this study, the iron-pillared clay nanocatalyst (ICN) was employed as a nanocatalyst for decolorization of methylene blue (MB) in aqueous solutions without hydrogen peroxide. The changes in clay structure after the incorporation of iron-oxide particles was studied with the help of XRD analytical data. The SEM micrographs showed higher heterogeneous structure of ICN compared to pristine clay and the specific surface area of ICN (82.54 m2/g) is considerably higher than the unmodified clay (63.41 m2/g). Further, the EDX analytical data indicate the successful incorporation of iron-oxide into bentonite clay. Batch experiments showed that ICN could degrade MB within pH 3.0 to 11.0 and it is efficient even at higher concentrations. The degradation is very fast and more than 90% is removed within 30 mins. A small amount of ICN is effective for degradation of MB and the reusability test showed that ICN can be reuse for several times for the degradation of MB in aqueous solutions. The effect of scavengers studies indicate that the ·OH radicals generated from the ICN are responsible in the degradation of MB. This study indicates that ICN must be low cost and environmentally friendly active nanocatalyst for degradation of MB present in aquatic environment.","PeriodicalId":22107,"journal":{"name":"Silpakorn University Science and Technology Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80044821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-01DOI: 10.22232/stj.2019.07.02.03
Anita Shukla, Ankit Jain
Present work focuses on need of automation in farming by using IOT technology. Automation of farming envisages monitoring and controlling of various parameters which could be helpful in increasing productivity. The proposed system provides a technological solution to the various problems like, maintenance of water requirements, humidity level, maintenance of proper temperature, and proper availability of light for sophisticated plants, fire alert and to keep a check on unwanted entry in the farming lands including timely and sufficient supply of electricity. This hardware provides an effective and efficient solution to the defined problems in Indian farming system by using node MCU Wi-Fi module. Different sensors like humidity sensor, soil moisture sensor, PIR sensor, fire sensor, light sensor and temperature sensor have been used for monitoring and controlling of various problems technologically. In proposed system a Wi-Fi module has been used which automatically informs the farmer about the water requirement, site temperature, humidity and moisture, light, fire alert and about the unwanted occupancy or encroachment by displaying real time data which can be seen and accessed over internet using IOT technology from anywhere in the world. System is equipped with solar panel which provides power backup to the system even in the absence of power supply. We have used five different sensors on three different plants with different environmental conditions and the performances of different sensors are found to be upto the desired expectations.
{"title":"Smart Automated Farming System using IOT and Solar Panel","authors":"Anita Shukla, Ankit Jain","doi":"10.22232/stj.2019.07.02.03","DOIUrl":"https://doi.org/10.22232/stj.2019.07.02.03","url":null,"abstract":"Present work focuses on need of automation in farming by using IOT technology. Automation of farming envisages monitoring and controlling of various parameters which could be helpful in increasing productivity. The proposed system provides a technological solution to the various problems like, maintenance of water requirements, humidity level, maintenance of proper temperature, and proper availability of light for sophisticated plants, fire alert and to keep a check on unwanted entry in the farming lands including timely and sufficient supply of electricity. This hardware provides an effective and efficient solution to the defined problems in Indian farming system by using node MCU Wi-Fi module. Different sensors like humidity sensor, soil moisture sensor, PIR sensor, fire sensor, light sensor and temperature sensor have been used for monitoring and controlling of various problems technologically. In proposed system a Wi-Fi module has been used which automatically informs the farmer about the water requirement, site temperature, humidity and moisture, light, fire alert and about the unwanted occupancy or encroachment by displaying real time data which can be seen and accessed over internet using IOT technology from anywhere in the world. System is equipped with solar panel which provides power backup to the system even in the absence of power supply. We have used five different sensors on three different plants with different environmental conditions and the performances of different sensors are found to be upto the desired expectations.","PeriodicalId":22107,"journal":{"name":"Silpakorn University Science and Technology Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73032980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-01DOI: 10.22232/stj.2019.07.02.08
Abhik Chatterjee
Nimesulide is a pain-killer and falls in the category of non-steroidal anti-inflammatory drug. It can reduce different types of pain. Nimesulide is a safe drug but uncontrolled use of this medicine creates many problems. So detection and estimation of nimesulide is very important. Electro analytical methods are good choice for detection and estimation. Among them, voltammetry is one of the good method in this twenty-first century. In this review, different electrode materials for voltammetric study have been presented with detection limit.
{"title":"Electrodes for Estimation of Nimesulide Drug using Voltammetry Technique: A Revisit","authors":"Abhik Chatterjee","doi":"10.22232/stj.2019.07.02.08","DOIUrl":"https://doi.org/10.22232/stj.2019.07.02.08","url":null,"abstract":"Nimesulide is a pain-killer and falls in the category of non-steroidal anti-inflammatory drug. It can reduce different types of pain. Nimesulide is a safe drug but uncontrolled use of this medicine creates many problems. So detection and estimation of nimesulide is very important. Electro analytical methods are good choice for detection and estimation. Among them, voltammetry is one of the good method in this twenty-first century. In this review, different electrode materials for voltammetric study have been presented with detection limit.","PeriodicalId":22107,"journal":{"name":"Silpakorn University Science and Technology Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82094817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.22232/stj.2019.07.01.05
D. Hema, Dr. S. Kannan
The primary goal of this research work is to extract only the essential foreground fragments of a color image through segmentation. This technique serves as the foundation for implementing object detection algorithms. The color image can be segmented better in HSV color space model than other color models. An interactive GUI tool is developed in Python and implemented to extract only the foreground from an image by adjusting the values for H (Hue), S (Saturation) and V (Value). The input is an RGB image and the output will be a segmented color image.
{"title":"Interactive Color Image Segmentation using HSV Color Space","authors":"D. Hema, Dr. S. Kannan","doi":"10.22232/stj.2019.07.01.05","DOIUrl":"https://doi.org/10.22232/stj.2019.07.01.05","url":null,"abstract":"The primary goal of this research work is to extract only the essential foreground fragments of a color image through segmentation. This technique serves as the foundation for implementing object detection algorithms. The color image can be segmented better in HSV color space model than other color models. An interactive GUI tool is developed in Python and implemented to extract only the foreground from an image by adjusting the values for H (Hue), S (Saturation) and V (Value). The input is an RGB image and the output will be a segmented color image.","PeriodicalId":22107,"journal":{"name":"Silpakorn University Science and Technology Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89607934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.22232/stj.2019.07.01.08
L. Sailo, G. Solanki, C. Lalhruaizela
We conducted an avian survey to assess the avian diversity of Mizoram University campus, Aizawl for a period of 24 months. During the study a total of 3,555 no of individuals of 189 species of birds belonging to 43 families were recorded. The family Muscicapidae represented the highest species composition with 28 species followed by family Timaliidae and of MZU campus and its adjacent area, 31 (16.4%) species are winter visitors, 15 (7.9%) species are summer visitor, and two species namely, Hooded pitta (Pitta sordid) and Forest wagtail (Dendronanthus indicus) are passer migrants. The variation calculated was 3.286 and species evenness index was 0.62. The detailed of avian fauna of campus recoded and the need of conservation actions are discussed in length.
{"title":"Avian Diversity in Mizoram University Campus, Aizawl, Mizoram","authors":"L. Sailo, G. Solanki, C. Lalhruaizela","doi":"10.22232/stj.2019.07.01.08","DOIUrl":"https://doi.org/10.22232/stj.2019.07.01.08","url":null,"abstract":"We conducted an avian survey to assess the avian diversity of Mizoram University campus, Aizawl for a period of 24 months. During the study a total of 3,555 no of individuals of 189 species of birds belonging to 43 families were recorded. The family Muscicapidae represented the highest species composition with 28 species followed by family Timaliidae and of MZU campus and its adjacent area, 31 (16.4%) species are winter visitors, 15 (7.9%) species are summer visitor, and two species namely, Hooded pitta (Pitta sordid) and Forest wagtail (Dendronanthus indicus) are passer migrants. The variation calculated was 3.286 and species evenness index was 0.62. The detailed of avian fauna of campus recoded and the need of conservation actions are discussed in length.","PeriodicalId":22107,"journal":{"name":"Silpakorn University Science and Technology Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76436994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.22232/stj.2019.07.01.06
G. Kumar, C. Kumar
This paper explains how the combination of RAMAN and PARA-METRIC amplifier using non-linear fiber components increases the gain bandwidth. Two kinds of configuration of amplifier are demonstrated with gain associated and bit error rate is seen. 15 db gain is measured and flat gain of 5db is measured.
{"title":"Impact of Optical Booster to Enhance the Gain Bandwidth for Dense Optical Communication System","authors":"G. Kumar, C. Kumar","doi":"10.22232/stj.2019.07.01.06","DOIUrl":"https://doi.org/10.22232/stj.2019.07.01.06","url":null,"abstract":"This paper explains how the combination of RAMAN and PARA-METRIC amplifier using non-linear fiber components increases the gain bandwidth. Two kinds of configuration of amplifier are demonstrated with gain associated and bit error rate is seen. 15 db gain is measured and flat gain of 5db is measured.","PeriodicalId":22107,"journal":{"name":"Silpakorn University Science and Technology Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87108288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper we have introduced multi valued 2 matrices on 2 matric space and have prove some fixed point theorems for multi-valued mappings on 2-metric space using T-Hardy and Rogers type contraction condition. We have also used F-contraction conditions, occasionally weakly compatible to prove the theorems.
{"title":"Common Fixed Point Theorems on Multi-Valued Mappings in 2-Metric Space using T-Hardy Rogers Contraction Condition and F-Contraction","authors":"Dinanath Barman, Krishnadhan Sarkar, Kalishankar Tiwary","doi":"10.22232/stj.2019.07.01.13","DOIUrl":"https://doi.org/10.22232/stj.2019.07.01.13","url":null,"abstract":"In this paper we have introduced multi valued 2 matrices on 2 matric space and have prove some fixed point theorems for multi-valued mappings on 2-metric space using T-Hardy and Rogers type contraction condition. We have also used F-contraction conditions, occasionally weakly compatible to prove the theorems.","PeriodicalId":22107,"journal":{"name":"Silpakorn University Science and Technology Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85081809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.22232/stj.2019.07.01.12
M. Pathak, Raghvendu Pathak
From thermochemical studies of organometallic compounds, a host of thermodynamic parameters viz., heat capacity, entropy, Gibbs energy etc., can be evaluated. The present communication deals with the evaluation of enthalpy of combustion and thereby estimation of enthalpy of formation of crystalline trisacetylacetonato chromium(III) [Cr (C5H7O2)3 (c)] or [Cr (acac)3 cH) and enthalpy of formation fH° –1 –1 respectively. Experimental data obtained are in good agreement with one another.
{"title":"Calorimetric Computation of Enthalpy of Formation of Trisacetylacetonato Chromium(III) [Cr(C5H7O2)3(c)]","authors":"M. Pathak, Raghvendu Pathak","doi":"10.22232/stj.2019.07.01.12","DOIUrl":"https://doi.org/10.22232/stj.2019.07.01.12","url":null,"abstract":"From thermochemical studies of organometallic compounds, a host of thermodynamic parameters viz., heat capacity, entropy, Gibbs energy etc., can be evaluated. The present communication deals with the evaluation of enthalpy of combustion and thereby estimation of enthalpy of formation of crystalline trisacetylacetonato chromium(III) [Cr (C5H7O2)3 (c)] or [Cr (acac)3 cH) and enthalpy of formation fH° –1 –1 respectively. Experimental data obtained are in good agreement with one another.","PeriodicalId":22107,"journal":{"name":"Silpakorn University Science and Technology Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85493183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.22232/stj.2019.07.01.04
Richa Sharma, S. Tangjang, A. C. Shukla
The findings of the current study deal with the first time report on the diversity of fungal endophyte from the ethnomedicinal plant- Phrynium capitatum Willd., (Marantaceae). The plant is growing wildly in the forest of Papum Pare, Arunachal Pradesh, India, and traditionally been used for anti-diabetic, antihyperglycemic or analgesic effects. During the investigation, samples of the plant parts, viz., leaves, stem, and roots were collected for isolation of endophytic spp. The endophytic spp were identified based on the morphological, cultural, and reproductive structures (hyaline, ellipsoidal, aseptate, pycnidia, beta conidia, perithecia, asci, and ascospores). Further, the phylogenetic analysis of the isolated species was made, using the sequences of 5.8S and 28S rDNA internal transcribed spacer sequence 1 and 4. The largest number of fungal endophytes (39%) were isolated from the leaves, followed by the roots (31%) and stems (30%). Overall 35 fungal species have been isolated, out of which, thirty-four belongs to the class Ascomycetes, and one from the class zygomycetes. The highest species richness and frequency of colonization were recorded in the leaf. The observations show that Pestalotiopsis longiseta was the most dominant endophytic species followed by Diplodina microsperma, Nodulisporium hinnuleum, Aspergillus flavus , Diaporthe sp., Nigrospora oryzae and Lasiodiplodia viticola. However, Pestalotiopsis neglecta, Sordaria fimicola, Diplodina microsperma, Fusarium incarnatum, Preussia sp., Diaporthe sp., Aureobasidium sp.were common fungal endophytes isolated from P. capitatum
{"title":"New Taxon of Fungal Endophytes from Phrynium capitatum Willd: A Promising Ethnomedicinal Plant in Northeast India and its Systematic and Phylogenetic Analysis","authors":"Richa Sharma, S. Tangjang, A. C. Shukla","doi":"10.22232/stj.2019.07.01.04","DOIUrl":"https://doi.org/10.22232/stj.2019.07.01.04","url":null,"abstract":"The findings of the current study deal with the first time report on the diversity of fungal endophyte from the ethnomedicinal plant- Phrynium capitatum Willd., (Marantaceae). The plant is growing wildly in the forest of Papum Pare, Arunachal Pradesh, India, and traditionally been used for anti-diabetic, antihyperglycemic or analgesic effects. During the investigation, samples of the plant parts, viz., leaves, stem, and roots were collected for isolation of endophytic spp. The endophytic spp were identified based on the morphological, cultural, and reproductive structures (hyaline, ellipsoidal, aseptate, pycnidia, beta conidia, perithecia, asci, and ascospores). Further, the phylogenetic analysis of the isolated species was made, using the sequences of 5.8S and 28S rDNA internal transcribed spacer sequence 1 and 4. The largest number of fungal endophytes (39%) were isolated from the leaves, followed by the roots (31%) and stems (30%). Overall 35 fungal species have been isolated, out of which, thirty-four belongs to the class Ascomycetes, and one from the class zygomycetes. The highest species richness and frequency of colonization were recorded in the leaf. The observations show that Pestalotiopsis longiseta was the most dominant endophytic species followed by Diplodina microsperma, Nodulisporium hinnuleum, Aspergillus flavus , Diaporthe sp., Nigrospora oryzae and Lasiodiplodia viticola. However, Pestalotiopsis neglecta, Sordaria fimicola, Diplodina microsperma, Fusarium incarnatum, Preussia sp., Diaporthe sp., Aureobasidium sp.were common fungal endophytes isolated from P. capitatum","PeriodicalId":22107,"journal":{"name":"Silpakorn University Science and Technology Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73206153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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