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RISS 인기검색어
- 검색키워드
- 저자 : Suresh Kumar Walia (검색결과 2 건)
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Modal parametric changes in a steel bridge with retrofitting
Suresh Kumar Walia,Hemant Kumar Vinayak,Ashok Kumar,Raman Parti 국제구조공학회 2015 Steel and Composite Structures, An International J Vol.19 No.2
This paper presents the status improvement of an old damaged deck type rural road steel truss bridge through the modal parametric study after partial retrofitting. The dynamic and static tests on bridge were carried out as in damaged state and after partial retrofitting. The dynamic testing on the steel bridge was carried out using accelerometers under similar environmental conditions with same speed of the moving vehicle. The comparison of the modal parameters i.e., frequency, mode shape mode shape curvature, modal strain energy, along with the deflection parameter are studied with respect to structural analytical model parameters. The status up gradation for the upper and downstream truss obtained was different due to differential level of damage in the bridge. Also after retrofitting the structural elemental behavior obtained was not same as desired. The damage level obtained through static tests carried out using total station indicated further retrofitting requirement.
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Niti Pathak,Ashwani Kumar Rai,Supradip Saha,Suresh Walia,Soumitra Kumar Sen,Kangila Venkataraman Bhat 한국작물학회 2014 Journal of crop science and biotechnology Vol.17 No.3
Sesame (Sesamum indicum L.) is one of the oldest oilseed crops grown in India and worldwide. This oilseed crop has high nutritionalvalue due to the presence of antioxidants such as lignans and tocopherols. Screening of oilseed germplasm for important nutritionalattributes is of prime importance in quality breeding programs. In the present study, the content of lignans (sesamin andsesamolin) and tocopherol homologues (α-, γ -, and δ-tocopherol) was determined using reverse phase HPLC (RP-HPLC) in 143sesame lines collected from diverse agro-ecological zones of India. Exploitable levels of sesamin, sesamolin, γ-, and δ-tocopherolwas observed in the studied sesame lines. Sesamum indicum cultivar CO 1, introgressed line MKN 9, and Sesamum malabaricumshowed high values for sesamin. Exotic and indigenous accessions of S. indicum (EC 542283 and IC 132176, IC 204681, IC 204773)showed high sesamolin contents. Cultivars, AKT 64, AKT 101, Phule til 1, and Tapi A showed high values for γ - and δ-tocopherol. The average content of sesamin and sesamolin was 0.86 and 0.50 mg g-1 seed, respectively. The average tocopherol content (292 μgg-1 seed) found in this study indicates the presence of a high amount of tocopherol in Indian sesame germplasm. Superior genotypesof sesame reported in this study could be utilized in sesame breeding programs for enhancing oil yield and nutritional attributes
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