SDM College of Engineering and Technology

About: SDM College of Engineering and Technology is a based out in . It is known for research contribution in the topics: Diesel fuel & Combustion. The organization has 350 authors who have published 351 publications receiving 2399 citations.

Design of adaptive question bank development and management system

Abstract: In the changing present competitive scenario, Intelligent development of question model is indispensible for intellectual growth of students and also to fulfill learning objectives of the course (Blooms Taxonomy). Although there are several computer based question paper generators but they typically use random selection from question bank. Also these databases (question bank) are not rich enough to avoid recalling (repetition of questions). Moreover, History is also not maintained for the previous question module generated. Such systems lack intelligency as they do not use concepts maps and are unable to provide quality questions with variations. In this paper, we are designing an adaptive question bank management system that is intelligently picking questions from rich database (question bank) and representing the question model according to the inputs or parameters provided by the question paper designer (QPD). This question bank uses concept map developed using graphical method that uses hierarchical knowledge of particular domain. The concept map integrated with question bank (question database) will ensure the question modeling process based on degree of certain criteria like Bloom's Taxonomy, difficulty level, marking scheme etc. The evaluation of generated question model will provide a feedback to check overall student's level of understanding and this will be an advantage for an organization for enhancing the growth of their students. In sum, our proposed system would be great aid for the organization in effective question modeling and its assessment.

Provenance and Implications of Heavy Minerals in the Beach Sands of India's Central West Coast

Abstract: Shalini, G.; Hegde, V.S.; Soumya, M., and Korkoppa, M.M., 2020. Provenance and implications of heavy minerals in the beach sands of India's central west coast. Journal of Coastal Research, 36(2), 353–361. Coconut Creek (Florida), ISSN 0749-0208.The heavy mineral assemblage and mineral chemistry of the beach sands of Mulki, Karnataka, central west coast of India, are discussed in this paper to understand their provenance. The study is based on the seasonal modification in shoreface profiles and identification of heavy minerals under binocular microscope followed by electron probe micro-analysis. The heavy mineral assemblage of the Mulki estuarine beach sands includes ilmenite, magnetite, zircon, rutile, hornblende, epidote, kyanite, and tremolite. There are two generations of ilmenite. The older generation is characterized by porous ilmenite that shows TiO2/FeO between 1.32 and 8.09. The second generation of ilmenite is characterized by fresh, rounded to angular grains that have relatively lower TiO2/FeO ratios ( 97% and another with TiO2 <94%. The presence of two generations of ilmenite and rutile suggests reworking of the older generation, probably derived from the offshore region or a paleobeach brought by the combined action of alongshore current and waves to the present beach, and a second generation brought by the modern drainage system. The heavy mineral assemblage and mineral chemistry suggest mixed provenance consisting of basic igneous rocks, acidic rocks, and high-grade metamorphic rocks. Mafic and acidic source rocks are indicated by the presence of two types of ilmenite, one with Cr2O3 and the other devoid of Cr2O3, and two types of hornblende, one rich in MgO and the other poor in MgO. High-grade metamorphic source rocks are indicated by the presence of rutile, kyanite, and tremolite. The Mulki-Pavanje River drains from a low-grade metamorphic terrain. Therefore, high-grade metamorphic minerals are attributed to an external source brought by alongshore drift.