NanoWorld Journal最新文献_第4页

Strategies to Increase Nitrogen and Zinc Use Efficiency for Climate Smart Coastal Soil Nutrient Management 提高氮和锌利用效率的策略，实现气候智能型沿海土壤养分管理

NanoWorld Journal Pub Date : 2023-10-11 DOI: 10.17756/nwj.2023-s3-053

Ramaiyan Singaravel, Kasi Viswanathan, Devarajan Arul Rajasekaran, Keerthana Krishnakumar, M. Seenivasan

{"title":"Strategies to Increase Nitrogen and Zinc Use Efficiency for Climate Smart Coastal Soil Nutrient Management","authors":"Ramaiyan Singaravel, Kasi Viswanathan, Devarajan Arul Rajasekaran, Keerthana Krishnakumar, M. Seenivasan","doi":"10.17756/nwj.2023-s3-053","DOIUrl":"https://doi.org/10.17756/nwj.2023-s3-053","url":null,"abstract":"India has an 8,129 km long coastline. A vast coastal tract faces a serious problem of soil salinity over an area of 3.1 m ha. Most of the coastal salt-affected soils were deficient in nitrogen (N) and zinc (Zn). N availability in coastal soil was lesser associated with poor mineralization by microbes with an increase in soil salinity. Low organic matter, CEC, and light texture encourage the leaching loss of applied nutrients in these soils. It is generally observed that Zn content in soil decreases with an increase in pH. The uptake of N and Zn by plants in saline soils is also affected by the presence of a high concentration of Cl -1 ions. A sustainable strategy to increase nutrient use efficiency in coastal salt-affected soils includes the addition of amendments and balanced use of organic, inorganic, and biological sources of nutrients. Experiments conducted in coastal saline soils which had pH 8.06, EC 2.48 dS/m, and low status of N and Zn, proved the efficacious nature of INM strategy namely 75% NPK + Azospirillum + Phosphobacterium + Zn enriched humic acid @ 20 kg/ha in significantly increasing the availability of Alkaline KMnO 4 -N, DTPA-Zn and improving the N and Zn use efficiency. Another experiment conducted in coastal sodic soil revealed the usefulness of NPK along with 75% ZnSO 4 fortified coir pith/green leaf manure application in increasing Zn use efficiency. A study conducted in coastal sandy on nitrate leaching and its control showed that the application of NPK along with 40 t clay/ ha + 20 kg/ha of humic acid was efficient in increasing the NH 4 -N and NO 3 -N (Nitrate nitrogen) content in soil and improving the N use efficiency.","PeriodicalId":36802,"journal":{"name":"NanoWorld Journal","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139320735","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

Enhancing Mechanical and Tribological Properties of AA6063 Matrix Composites Through Nanoscale Boron Carbide Reinforcement 通过纳米级碳化硼增强增强 AA6063 基复合材料的机械和摩擦学性能

NanoWorld Journal Pub Date : 2023-10-11 DOI: 10.17756/nwj.2023-s3-056

Manu Yadakere Murthygowda, Vettrivel Arul, Eugenia Naranjo, Miguel Escobar, Edwin Pozo, Freddy Ajila, Gurusamy Sathish Kumar

{"title":"Enhancing Mechanical and Tribological Properties of AA6063 Matrix Composites Through Nanoscale Boron Carbide Reinforcement","authors":"Manu Yadakere Murthygowda, Vettrivel Arul, Eugenia Naranjo, Miguel Escobar, Edwin Pozo, Freddy Ajila, Gurusamy Sathish Kumar","doi":"10.17756/nwj.2023-s3-056","DOIUrl":"https://doi.org/10.17756/nwj.2023-s3-056","url":null,"abstract":"In this study, an investigation was conducted to assess the influence of nanoscale boron carbide (nB 4 C) particles on the mechanical and tribological properties of AA6063 matrix composites. Using a mechanical stirrer, researchers mixed together AA6063 matrix composites with various amounts of nB 4 C (from 0 to 2.0 wt.%). The experimental results demonstrated that the addition of nB 4 C not only increased the elastic modulus of the material but also led to an enhancement in its brittle behavior, consequently reducing the failure strain significantly. Furthermore, the addition of nB 4 C exhibited notable improvements in the shear modulus and flexural shear modulus of the composites. Notably, the introduction of nB 4 C into the AA6063 matrix resulted in reduced subsurface fatigue wear and increased wear resistance, attributed to the beneficial lubricating properties of B 4 C. Various tests were conducted to evaluate parameters such as wear, micro-structure, morphology, density and voids, hardness, flexural and tensile strength. The results indicated that the addition of nB 4 C led to enhanced wear resistance and tensile strength in the composites. Specifically, the highest wear resistance and tensile strength were achieved with the inclusion of 2 wt.% nB 4 C in the aluminum (Al) metal matrix composite. Microscopical analysis further revealed a consistent and uniform distribution of B 4 C particles throughout the Al matrix, indicating a promising dispersion of the reinforcement material within the composite.","PeriodicalId":36802,"journal":{"name":"NanoWorld Journal","volume":"90 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139320467","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

An Experimental Study on Compressive Strength of M30 Concrete Using Seashell Powder and Eggshell Powder as a Partial Replacement of Fine Aggregate in Comparison with Conventional Concrete 使用贝壳粉和蛋壳粉部分替代细骨料的 M30 混凝土抗压强度与传统混凝土对比实验研究

NanoWorld Journal Pub Date : 2023-10-10 DOI: 10.17756/nwj.2023-s3-050

Pasupuleti Jaswanth, Ganesan Ramachandran

{"title":"An Experimental Study on Compressive Strength of M30 Concrete Using Seashell Powder and Eggshell Powder as a Partial Replacement of Fine Aggregate in Comparison with Conventional Concrete","authors":"Pasupuleti Jaswanth, Ganesan Ramachandran","doi":"10.17756/nwj.2023-s3-050","DOIUrl":"https://doi.org/10.17756/nwj.2023-s3-050","url":null,"abstract":"The objective of the research is to compare seashell and eggshell based powder M30 concrete and conventional concrete on the compressive strength. In this study, a total of 18 samples were divided into two groups and prepared for data collection. One is made with ordinary concrete, and the other with seashells and eggshells-based powder M30 concrete. To perform the independent sample t-test, SPSS (Statistical Package for the Social Sciences) software, version 21, was used. The seashell and eggshell based powder M30 concrete sample has a mean compressive strength of 38.00 N/mm 2 , whereas the conventional concrete test sample has a mean characteristics compressive strength of 33.73 N/mm 2 . Independent samples t-test is performed to analyze the results. When a significant difference is found between the two groups in an independent sample t-test and the G-power is 80% and p = 0.053 (p > 0.05), the independent sample t-test is run for both groups is not statistically significant. The standard deviation is 2.90452, 5.81220, and the standard error is 0.68460, 1.36995, with the mean value being 33.7294, 36.8378. From the experimental study results, it could be found that the seashell and eggshell based powder M30 concrete has more compressive strength than traditional concrete.","PeriodicalId":36802,"journal":{"name":"NanoWorld Journal","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139321211","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

An Experimental Study on Compressive Strength of Conventional Concrete Using 5% of Novel E-waste as a Partial Replacement of Coarse Aggregate in Comparing with Conventional Concrete 使用 5% 的新型电子垃圾部分替代粗骨料与传统混凝土抗压强度对比实验研究

NanoWorld Journal Pub Date : 2023-10-10 DOI: 10.17756/nwj.2023-s3-047

Balasundaram Gokul, Samuel Simron, Rajkumar Johnpeter

引用次数: 0

A Basic Confirmational Study of Copper(I) Oxide Nanoparticles by Varying Molar Ratio for the Current Applications 不同摩尔比氧化铜（I）纳米粒子在当前应用中的基本确认研究

NanoWorld Journal Pub Date : 2023-10-10 DOI: 10.17756/nwj.2023-s3-052

Annai Delphin Charles, Arunachalan Prabakaran, Pauline Vijay Muthu

引用次数: 0

Effect of Novel Polypropylene Fiber and Natural Fiber Based Concrete Compared to Conventional Concrete with Respect to Flexural Strength 新型聚丙烯纤维和天然纤维混凝土与传统混凝土相比对抗折强度的影响

NanoWorld Journal Pub Date : 2023-10-10 DOI: 10.17756/nwj.2023-s3-049

Eslavatha Thanmy, Muniyandi Tholkapiyan

{"title":"Effect of Novel Polypropylene Fiber and Natural Fiber Based Concrete Compared to Conventional Concrete with Respect to Flexural Strength","authors":"Eslavatha Thanmy, Muniyandi Tholkapiyan","doi":"10.17756/nwj.2023-s3-049","DOIUrl":"https://doi.org/10.17756/nwj.2023-s3-049","url":null,"abstract":"This study’s primary goal is to increase the strength of plain cement concrete. An effort has been made to research the impact of extra polypropylene fiber in regular Portland cement concrete in an effort to enhance these features of plain concrete. In this experimental investigation, flexural strength tests and flexural strength tests at 28 days for concrete of the M25 grade were conducted to determine the effects of fibers in various percentages (between 3 and 4%). The flexural beam size was taken as 500 mm x 100 mm x 100 mm. According to test re-sults, concrete with polypropylene fiber demonstrates superior performance than concrete without fiber. Comparison of both polymers reinforced concrete beam and conventional concrete beam mean value is (13.0372, 14.4730, and 16.0122), standard deviation is (0.20096, 0.29784), and the standard error is (0.04737, 0.07020). The SPSS (Statistical Package for the Social Sciences) carried out has a significance of 0.000 (p < 0.05). This shows that there is a statistically significant difference between the two groups considered in this study. Fiber insertion much more improves the flexural strength of concrete.","PeriodicalId":36802,"journal":{"name":"NanoWorld Journal","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139321072","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

Influence of Novel Cellulose Fiber Based Concrete Compared with Conventional Concrete with Respect to Compressive Strength 新型纤维素纤维基混凝土与传统混凝土相比对抗压强度的影响

NanoWorld Journal Pub Date : 2023-10-10 DOI: 10.17756/nwj.2023-s3-048

Eslavatha Thanmy, Muniyandi Tholkapiyan

引用次数: 0

Experimental Study on Compressive Strength of M30 Grade Concrete Using Waste Glass Powder in Comparison with Conventional Concrete 使用废玻璃粉的 M30 级混凝土抗压强度与传统混凝土对比的实验研究

NanoWorld Journal Pub Date : 2023-10-10 DOI: 10.17756/nwj.2023-s3-051

Vengala Shriram, Ganesan Ramachandran

{"title":"Experimental Study on Compressive Strength of M30 Grade Concrete Using Waste Glass Powder in Comparison with Conventional Concrete","authors":"Vengala Shriram, Ganesan Ramachandran","doi":"10.17756/nwj.2023-s3-051","DOIUrl":"https://doi.org/10.17756/nwj.2023-s3-051","url":null,"abstract":"The aim of this study is to compare glass powder based M30 concrete to conventional concrete in terms of compressive strength. 18 samples were divided into two groups and prepped for data collection. The first is made using glass powder in place of fine aggregate, and the second is regular concrete. The preparation and examination of the samples involved using a variety of tools and materials. The pretest power is determined with 80% confidence intervals (CI) are 95% respectively. The 20% of glass powder was partially replaced in fine aggregate. Utilizing the universal testing machine, compression strength tests were conducted. The independent sample t-test was carried out using SPSS (Statistical Package for the Social Sciences) software, version 21. The mean compressive strength of concrete with innovative glass powder was 35.4978 N/mm 2 , whereas the typical mean compressive strength of conventional concrete is 34.2744 N/mm 2 . A t-test for independent samples is used to analyze the findings. The significance was p = 0.000 (p < 0.05). This demonstrates that the two approaches have a statistically significant difference. The standard deviation is 1.6697, 2.1529, and the standard error is 0.3935, 0.5074, with the mean value being 34.2744 N/mm 2 , 35.4978N/ mm 2 . From this experimental study, the innovative glass powder based M30 grade concrete is found to have a higher compressive strength than regular concrete, it is determined.","PeriodicalId":36802,"journal":{"name":"NanoWorld Journal","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139320867","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

Improvement of Compressive Strength of M30 Grade of Concrete by Novel Hypo Sludge with Addition of Sikacrete and Comparison of Compressive Strength of Conventional Concrete 新型下沉污泥与添加 Sikacrete 对 M30 级混凝土抗压强度的改善以及传统混凝土抗压强度的比较

NanoWorld Journal Pub Date : 2023-10-09 DOI: 10.17756/nwj.2023-s3-042

引用次数: 0

Comparative Study on Compressive Strength of Concrete Using Novel Pumice with 40% Silica Fume and Metakaolin Conventional Concrete 使用含 40% 硅灰的新型浮石和高岭土传统混凝土的混凝土抗压强度对比研究

NanoWorld Journal Pub Date : 2023-10-09 DOI: 10.17756/nwj.2023-s3-046

引用次数: 0