Silpakorn University Science and Technology Journal最新文献_第7页

Synthesis and Chraracterization of Tin Sulfide Nanoparticles 硫化锡纳米颗粒的合成与表征

Silpakorn University Science and Technology Journal Pub Date : 2019-07-01 DOI: 10.22232/stj.2019.07.02.13

M. Upadhyay, A. Thakur, Mohan Daimary

引用次数: 0

Potential of Iron Pillared Clay as Active Nanocatalyst for Rapid Decolorization of Methylene Blue 铁柱粘土作为亚甲基蓝快速脱色活性纳米催化剂的潜力

Silpakorn University Science and Technology Journal Pub Date : 2019-07-01 DOI: 10.22232/stj.2019.07.02.05

Lal hmunsiama, Seung-Mok Lee

{"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}

引用次数: 0

Smart Automated Farming System using IOT and Solar Panel 使用物联网和太阳能电池板的智能自动化农业系统

Silpakorn University Science and Technology Journal Pub Date : 2019-07-01 DOI: 10.22232/stj.2019.07.02.03

Anita Shukla, Ankit Jain

{"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}

引用次数: 0

Electrodes for Estimation of Nimesulide Drug using Voltammetry Technique: A Revisit 用伏安法测定尼美舒利药物的电极:回顾

Silpakorn University Science and Technology Journal Pub Date : 2019-07-01 DOI: 10.22232/stj.2019.07.02.08

Abhik Chatterjee

引用次数: 0

Interactive Color Image Segmentation using HSV Color Space 使用HSV色彩空间的交互式彩色图像分割

Silpakorn University Science and Technology Journal Pub Date : 2019-01-01 DOI: 10.22232/stj.2019.07.01.05

D. Hema, Dr. S. Kannan

引用次数: 12

Avian Diversity in Mizoram University Campus, Aizawl, Mizoram 米佐拉姆邦Aizawl米佐拉姆大学校园的鸟类多样性

Silpakorn University Science and Technology Journal Pub Date : 2019-01-01 DOI: 10.22232/stj.2019.07.01.08

L. Sailo, G. Solanki, C. Lalhruaizela

引用次数: 4

Impact of Optical Booster to Enhance the Gain Bandwidth for Dense Optical Communication System 光增强器对密集光通信系统增益带宽的影响

Silpakorn University Science and Technology Journal Pub Date : 2019-01-01 DOI: 10.22232/stj.2019.07.01.06

G. Kumar, C. Kumar

引用次数: 1

Common Fixed Point Theorems on Multi-Valued Mappings in 2-Metric Space using T-Hardy Rogers Contraction Condition and F-Contraction 利用T-Hardy Rogers收缩条件和f -收缩的2-度量空间中多值映射的公共不动点定理

Silpakorn University Science and Technology Journal Pub Date : 2019-01-01 DOI: 10.22232/stj.2019.07.01.13

Dinanath Barman, Krishnadhan Sarkar, Kalishankar Tiwary

引用次数: 0

Calorimetric Computation of Enthalpy of Formation of Trisacetylacetonato Chromium(III) [Cr(C5H7O2)3(c)] 三乙酰丙酮铬(III) [Cr(C5H7O2)3(c)]生成焓的量热计算

Silpakorn University Science and Technology Journal Pub Date : 2019-01-01 DOI: 10.22232/stj.2019.07.01.12

M. Pathak, Raghvendu Pathak

引用次数: 0

New Taxon of Fungal Endophytes from Phrynium capitatum Willd: A Promising Ethnomedicinal Plant in Northeast India and its Systematic and Phylogenetic Analysis 印度东北部一种有发展前途的民族药用植物——野生头草真菌内生新分类群及其系统发育分析

Silpakorn University Science and Technology Journal Pub Date : 2019-01-01 DOI: 10.22232/stj.2019.07.01.04

Richa Sharma, S. Tangjang, A. C. Shukla

{"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}

引用次数: 1