Journal of Advanced Chemical Sciences最新文献_第4页

Synthesis, Characterization and Theoretical Insights into Molecular Properties of 2-(4-fluorophenyl)-4H-chromen-4-one 2-(4-氟苯基)- 4h - chromen4 -one的合成、表征及分子性质的理论研究

Journal of Advanced Chemical Sciences Pub Date : 2021-04-20 DOI: 10.30799/JACS.235.21070201

R. S. Shinde

引用次数: 1

DFT Exploration on Molecular Characteristics of 6-Methyl-2-oxo-4-phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxylate 6-甲基-2-氧-4-苯基-1,2,3,4-四氢嘧啶-5-羧酸盐分子特性的DFT探索

Journal of Advanced Chemical Sciences Pub Date : 2021-04-09 DOI: 10.30799/JACS.236.21070105

Abhijit R. Bukane, B. Jagdale

引用次数: 4

Application of Digital Image Processing to Determine the Properties of Aggregates and Soil using MATLAB: A Case Study 基于MATLAB的数字图像处理在测定团聚体和土壤性质中的应用——以实例为例

Journal of Advanced Chemical Sciences Pub Date : 2021-04-04 DOI: 10.30799/JACS.234.21070104

M. Bathula, Saisantosh Vamshi Harsha Madiraju

{"title":"Application of Digital Image Processing to Determine the Properties of Aggregates and Soil using MATLAB: A Case Study","authors":"M. Bathula, Saisantosh Vamshi Harsha Madiraju","doi":"10.30799/JACS.234.21070104","DOIUrl":"https://doi.org/10.30799/JACS.234.21070104","url":null,"abstract":"Article history: Received 16 February 2021 Accepted 08 March 2021 Available online 04 April 2021 The vital physical characteristics of aggregates used in engineering and for interpretation of the genesis of naturally occurring sediment are shape and size of rocks. The mineralogical and physical composition of the rock is necessary to cater to the interaction within bounded space and soundings. Several image processing programs are available to measure the size and shape of various types of objects. The accuracy and reproducibility of the results of these imaging methods could be bettered. This paper aims to determine the aggregate dimension and volume to space behaviors through image processing tools. This study is extended investigation of the coarse aggregate shape properties such as area, volume, center of gravity (CG), elongation and flakiness index. Also, this paper discuss the development of an easy to use image processing tool to determine the shrinkage of soils due to lack of moisture content either because of natural ways/artificial ways. Two different types of soils including first sample near the SNU lake and second sample near Business Management School at Shiv Nadar University (SNU), India were collected. The samples were oven-dried over a period and shrinkage values were determined by Digital Image Processing (DIP) using MATLAB. The results are compared to wax-water method (manual method) results of shrinkage. The properties found by DIP method are reasonably agreeable for multiple aggregates and minor percentage differences in the soil shrinkage results.","PeriodicalId":14902,"journal":{"name":"Journal of Advanced Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87109854","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

Anticounterfeiting Technology – A Luminescent Path: Short Review 防伪技术——一条发光的道路:简短回顾

Journal of Advanced Chemical Sciences Pub Date : 2021-03-10 DOI: 10.30799/JACS.233.21070103

Jeyarajan Helen Ratna Monica, Jyoti, Pranav Y.

{"title":"Anticounterfeiting Technology – A Luminescent Path: Short Review","authors":"Jeyarajan Helen Ratna Monica, Jyoti, Pranav Y.","doi":"10.30799/JACS.233.21070103","DOIUrl":"https://doi.org/10.30799/JACS.233.21070103","url":null,"abstract":"Article history: Received 08 February 2021 Accepted 20 February 2021 Available online 10 March 2021 In the recent years, there are number of problems related to counterfeit in drug industry, banking industry, insurance sector and range of products including fake university degrees, documents etc. There are number of products, which can be easily duplicated by simple processes and the product seems original that nobody doubts. Even the counterfeit of currency is also a main problem in world’s economy. So there are number of anti-counterfeiting technologies including electronic combat mechanism are available in the market to prevent these antisocial activities. Printing ink is very useful as per the security purpose to write down confidential documents or sign. Fluorescent material-based inks can be difficult to counterfeit and relatively easier to handle. This ink has diverse properties in different materials so that it can be a very good option to frame an anticounterfeiting technique. This article explains about the brief overview of anticounterfeiting technology and different methods of it. It also explains the applications of fluorescent based security ink to prevent the counterfeiting of the products and documents. This can be a reliable source for the security purpose to make the confidential documents secure. The review article also describes the concept of luminescence and its applicability for further development in various sectors.","PeriodicalId":14902,"journal":{"name":"Journal of Advanced Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78019350","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: 3

Assessment of Physicochemical Properties and Mineral Compositions of Almond (Prunus amygdalus) Gum of Libyan Origin 利比亚产杏仁(Prunus amygdalus)胶的理化性质和矿物成分的评价

Journal of Advanced Chemical Sciences Pub Date : 2021-02-07 DOI: 10.30799/JACS.232.21070102

M. Awad, Aborawi M. Elgornazi, N. Soleiman

{"title":"Assessment of Physicochemical Properties and Mineral Compositions of Almond (Prunus amygdalus) Gum of Libyan Origin","authors":"M. Awad, Aborawi M. Elgornazi, N. Soleiman","doi":"10.30799/JACS.232.21070102","DOIUrl":"https://doi.org/10.30799/JACS.232.21070102","url":null,"abstract":"Twenty-five authentic samples of Prunus amygdalus gum samples were collected from five different locations in northwest of Libya. Different physicochemical methods were used to characterize this type of gum samples. The mean values of the moisture ranged from 12.55 to 14.93%, ash mean values 4.03 to 4.62%, pH 3.89 to 4.40, W.H.C 52.85 to 60.0%, and O.H.C 136.2 to 156.3%. Solubility of Prunus amygdalus gum showed that it had low solubility in distilled water with the mean values ranged from 20.01 to 35.40%, but it dissolved perfectly in alkali media where solubility increased to 96.3% in 0.05 M Na2CO3. The study exhibited that the mean values of cationic concentration in %(w/w) such as calcium was ranged from 0.552 to 0.585, potassium 0.402 to 0.505, iron 0.0975 to 0.1125, and sodium 0.064 to 0.079, which indicates that Ca has the highest concentration of metallic ions present. Atomic absorption method indicate that all samples contain traces of elements, Li, Cr, Mn, Ni, Zn, Pb, Hg, and Cd. The main functional groups recorded from FTIR spectrum included bands at 3293 cm-1 (O-H in carboxylic group), 1601.77 cm-1 (C=O, amide N-H bend, and C=C), 1357.53 cm-1 (CH3-, and C-O-H in- plane bending vibration), and 1025.74 cm-1 (C-O stretching).","PeriodicalId":14902,"journal":{"name":"Journal of Advanced Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77443842","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

Electrodeposition of Zn-Co Alloy from an Acid Sulphate Bath Containing Triethanolamine and Thiaminehydrochloride 在含有三乙醇胺和盐酸硫胺的酸性硫酸盐浴中电沉积Zn-Co合金

Journal of Advanced Chemical Sciences Pub Date : 2021-01-17 DOI: 10.30799/JACS.228.21070101

V. Narasimhamurthy, L. H. Shivashankarappa

引用次数: 0

Short Review on Printing Ink Technology to Prevent Counterfeit of the Products 浅谈防止产品假冒的油墨技术

Journal of Advanced Chemical Sciences Pub Date : 2020-12-31 DOI: 10.30799/jacs.227.20060401

Pranav Y. Dave

{"title":"Short Review on Printing Ink Technology to Prevent Counterfeit of the Products","authors":"Pranav Y. Dave","doi":"10.30799/jacs.227.20060401","DOIUrl":"https://doi.org/10.30799/jacs.227.20060401","url":null,"abstract":"In the recent world, there are number of problems related to counterfeit of the different products. In another way, there are number of products, which can be easily duplicated by simple processes and the product is accurate and precise. Even the counterfeit of currency is also a main problem in world’s economic. So from both ways, the terrorist activities are increasing to destroy the country in economical way. Also, there are number of sectors, which can be effected due to this reason like duplication of electronic products, duplication of food products, duplication of automobile products, duplication of currency, etc. So there are number of anti-counterfeiting technologies and to fabricate different fluorescent ink is one of the techniques to prevent the counterfeiting process. In this review article, the fabrication of ink explains. Printing ink is very useful as per the security purpose to write down confidential documents or sign. Fluorescent material based ink can be difficult to counterfeit and also costly. Even the ink has diverse properties to apply in different sectors. The article also explains which properties ink must have for prevention. It is also described that how fluorescent material based ink can help in different sectors and how it is helping and a part of anticounterfeiting technology nowadays.","PeriodicalId":14902,"journal":{"name":"Journal of Advanced Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76890101","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: 4

Physico-Chemical Properties of Zn-Fe Alloy Deposits from an Acid Sulphate Bath Containing Triethanolamine 含三乙醇胺硫酸浴锌铁合金镀层的物理化学性质

Journal of Advanced Chemical Sciences Pub Date : 2020-12-15 DOI: 10.30799/jacs.226.20060301

V. Narasimhamurthy, L. H. Shivashankarappa

引用次数: 0

Synthesis and Characterization of Polypyrrole (PPy) by In-situ Polymerization Technique 聚吡咯(PPy)的原位聚合合成及表征

Journal of Advanced Chemical Sciences Pub Date : 2020-09-09 DOI: 10.30799/jacs.224.20060203

Phalak Mrunalini, R. Waghulade, Y. Toda

引用次数: 3

Synthesis and Characterization of Polyacrylic Acid Based Nano-Hybrid Polymers for Malachite Green Uptake 聚丙烯酸基孔雀石绿吸收纳米杂化聚合物的合成与表征

Journal of Advanced Chemical Sciences Pub Date : 2020-08-25 DOI: 10.30799/jacs.225.20060202

Ashish Kumar, G. Chauhan

引用次数: 0