Journal of Material Sciences and Engineering Technology最新文献

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Effect of Different Organic Manures on Growth, Yield, and Quality of Late Season Radish (Raphanus Sativus) in Paklihawa, Rupandehi, Nepal 不同有机肥对尼泊尔鲁班德希省 Paklihawa 晚熟萝卜（Raphanus Sativus）生长、产量和质量的影响

Journal of Material Sciences and Engineering Technology Pub Date : 2024-03-31 DOI: 10.61440/jmset.2024.v2.18

Netra Prasad Pokharel, Pradip Gurung, Ganesh Prasad Kharel, Anita Parajuli, S. Khanal

{"title":"Effect of Different Organic Manures on Growth, Yield, and Quality of Late Season Radish (Raphanus Sativus) in Paklihawa, Rupandehi, Nepal","authors":"Netra Prasad Pokharel, Pradip Gurung, Ganesh Prasad Kharel, Anita Parajuli, S. Khanal","doi":"10.61440/jmset.2024.v2.18","DOIUrl":"https://doi.org/10.61440/jmset.2024.v2.18","url":null,"abstract":"Radish (Raphanus sativus L.) is a major root vegetable crop in Nepal. Organic manures are an indispensable substitute for the highly toxic inorganic fertilizers. A research experiment was conducted at the horticulture farm of Institute of Agriculture and Animal Science (IAAS), Paklihawa campus, Rupandehi, Nepal to investigate the effect of different organic manures on the growth, yield, and quality of Tokinashi variety of late-season radish. The experiment was conducted in a randomized complete block design (RCBD) with three replications. The seven different treatments were farm yard manure (FYM) (30 t ha-1), poultry manure (20 t ha-1), FYM (15 t ha-1) + poultry manure (10 t ha-1), FYM (15 t ha-1) + vermicompost (2.5 t ha-1), vermicompost (5 t ha-1), FYM (15 t ha-1) + Bone meal (5 t ha-1), and control (without use of organic manures). Poultry manure was observed significant effect on the growth and yield attributes of radish. The effect of poultry manure over other treatments, viz. plant height (31.17 cm), number of leaves (20.53), shoot length (29.68 cm), crown spread (51.4 cm), root length (28.6 cm), root diameter (10.81 cm), average root weight (130.2 gm), average shoot weight (71 gm), root dry weight (125.33 gm), harvest index (64.85%), shoot yield per hectare (16.22 t ha-1), biological yield per hectare (50.3 t ha-1), root yield per hectare (23.87 t ha-1), and total soluble solid (1.13 0 Brix) were recorded maximum at harvest (77 days after sowing). The ascorbic acid was recorded maximum (0.181 mg ml-1) in vermicompost. It can be concluded that poultry manure can be used for higher yield for late-season radish cultivation under Rupandehi, Terai condition of Nepal.","PeriodicalId":512742,"journal":{"name":"Journal of Material Sciences and Engineering Technology","volume":"95 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140360305","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

Some Selected Secondary School Students Perception of the Quality of PGDE Teachers Trained by National Teachers Institute 部分中学生对国立师范学院培训的 PGDE 教师质量的看法

Journal of Material Sciences and Engineering Technology Pub Date : 2024-03-31 DOI: 10.61440/jmset.2024.v2.19

Joy Chinyere Ogbu, Morino Ganou, Adetoun Be, Odusanya Jt, Ugoh Sc

引用次数: 0

Solid-Phase Orientation (Die Drawing) of Polymer Tubes to Enhance Mechanical Properties of Bioresorbable Vascular Scaffolds 聚合物管的固相定向（模具拉伸）以增强生物可吸收血管支架的机械性能

Journal of Material Sciences and Engineering Technology Pub Date : 2024-03-31 DOI: 10.61440/jmset.2024.v2.22

Naveed Ahmed, N. Bullett, Will Balmer, K. Al-lamee

{"title":"Solid-Phase Orientation (Die Drawing) of Polymer Tubes to Enhance Mechanical Properties of Bioresorbable Vascular Scaffolds","authors":"Naveed Ahmed, N. Bullett, Will Balmer, K. Al-lamee","doi":"10.61440/jmset.2024.v2.22","DOIUrl":"https://doi.org/10.61440/jmset.2024.v2.22","url":null,"abstract":"Die-drawing, also known as solid phase orientation, is a technique used to enhance the mechanical properties of polymers for non-medical applications [1]. Arterius has adapted and optimised this technology to manufacture state-of-the-art bioresorbable polymeric scaffolds (stents) based on polylactic acid (PLA) for vascular and non-vascular applications. The mechanical properties of the polymer are improved by orientating the polymer chains and introducing crystallinity to the polymer. As the PLA polymer is drawn over a mandrel and through a die, close to the glass transition temperature (Tg > 55 °C), the polymer chains align, gradually increasing orientation with the bi-axial draw, thus promoting significantly improved mechanical properties. In-house testing of the die-drawn tubing compared to the extruded tubing showed an increase in tensile modulus up to 79.7%, yield strength increases of up to 121.5%, ultimate tensile strength increases of up to 267.9% and elongation at break increase of up to 1,022.8%. The die-drawing process also introduces crystallinity into the PLLA tubing, initially the amorphous extruded tube has a crystallinity of around 1.3% which increased to around 40% crystallinity after the die-drawn process. Another attribute of the orientated polymer tubing is the radial strength it provides to the scaffold once it has been laser cut into an innovative closed-cell design, which is comparable to market-leading metallic stents.","PeriodicalId":512742,"journal":{"name":"Journal of Material Sciences and Engineering Technology","volume":"12 25","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140358879","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