Current Science

Jitendra Prasad ¹, Avijit Goswami ¹, Brijesh Kumbhani ¹, Chittaranjan Mishra ¹, Himanshu Tyagi ¹, Jung Hyun Jun ¹, Kamal Kumar Choudhary ¹, Mukesh Kumar ¹, Naveen James ¹, V. Ravi Shankar Reddy ¹, Satwinder Jit Singh ¹, Deepak Kashyap ¹, Milind Sohoni ², Nandita Das Gupta ³, Prabhu Krishna Raina ¹, Samir Kumar Saha ⁴, Sanjay Mittal ⁵, Suman Chakraborty ⁶, Sarit Kumar Das ¹

Affiliations
1 Indian Institute of Technology Ropar, Nangal Road, Rupnagar 140 001, IN
2 Department of Computer Science and Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, IN
3 Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai 600 036, IN
4 Department of Mechanical Engineering, MCKV Institute of Engineering, Liluah, Howrah 711 204, IN
5 Department of Aerospace Engineering, Indian Institute of Technology Kanpur, Kanpur 208 016, IN
6 Department of Mechanical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721 302, IN

Abstract

Education theories stress not only societal context of education, but also educational philosophy, anthropology and psychology of learning. A formal curriculum theory, viz. Taba–Tyler rationale, has been proposed to incorporate philosophical, sociological, anthropological and psychological contexts of engineering education in the curriculum. The newly developed undergraduate curriculum at the Indian Institute of Technology Ropar is based on such education theories and has been presented as a case study. It has been demonstrated that the resulting curriculum can lead to unique courses that collectively bring out unique features such as core competency, strong connection to society, hands-on learning, creativity and innovation.

Keywords

Curriculum Development, Engineering Education, Entrepreneurship, Innovation, Societal Needs.

Full Text

   

Arup Roy Chowdhury ¹, Vishnukumar D. Patel ¹, S. R. Joshi ¹, A. S. Arya ¹, Ankush Kumar ¹, Sukamal Paul ¹, Dhrupesh Shah ¹, Pradeep Soni ¹, J. C. Karelia ¹, Minal Sampat ¹, Satish Sharma ¹, Sandip Somani ¹, H. V. Bhagat ¹, Jitendra Sharma ¹, Amitabh ¹, K. Suresh ¹, R. P. Rajasekhar ¹, B. B. Bokarwadia ¹, Mukesh Kumar ¹, D. N. Ghonia ¹

Affiliations
1 Space Applications Centre, Indian Space Research Organisation, Ahmedabad 380 015, IN

Abstract

The paper presents the design and development of Terrain Mapping Camera-2 (TMC-2) for Chandrayaan- 2 including science objectives; system and sub-system configuration along with the realized performance of the camera; payload characterization; aspects related to data products, etc. TMC-2, onboard Chandrayaan-2 orbiter-craft is a follow-on of the Terrain Mapping Camera (TMC) onboard Chandrayaan- 1. It operates in visible panchromatic band. It comprises three identical electro-optical chains aligned for three views (–25, 0 and +25 degree) along track direction for generation of stereo images. It provides data with 5 m horizontal ground sampling distance to generate digital elevation model. TMC-2 based on the new configuration and sub-system designs has reduction in mass and power by more than 40% compared to TMC, without compromising the performance.

Keywords

Digital Elevation Model, Light Transfer Characteristics, Relative Spectral Response, Signal-to-noise Ratio, Stereo Imaging, Square Wave Response, Terrain Mapping Camera-2.

Full Text

   

Mukesh Kumar ¹, A. Sarangi ², D. K. Singh ², S. Sudhishri ², A. R. Rao ³

Affiliations
1 Irrigation and Drainage Engineering Division, ICAR-Central Institute of Agricultural Engineering, Bhopal 462 038, IN
2 Water Technology Centre, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, IN
3 ICAR-Indian Agricultural Statistics Research Institute, New Delhi 110 012, IN

Abstract

A field experiment was conducted for two consecutive years to develop management alternatives for wheat cultivars (salt-tolerant and salt non-tolerant) cultivated under irrigated saline environment (groundwater, 4, 8 and 12 dS m^–1) and foliar potassium fertigation. The grain yield of wheat cultivars decreased with the increase in salinity levels of irrigation water. The foliar potassium fertigation during the heading stage of wheat cultivars ameliorated the adverse effect of salinity and resulted in the increase in grain yield. In this study, empirical equations for wheat yield known as production function have been developed. The production functions were developed keeping grain yield parameter as output, besides the many input parameters pertaining to quantity and quality of the irrigation water, quantity of potassium applied as foliar spray and rainfall depth during the crop growth period. The production function with higher coefficient of determination (R²) may be used to predict grain yield of both salt-tolerant and salt non-tolerant cultivars under different saline irrigation regimes, rainfall and irrigation water depths, besides the dose of potassium sulphate (K²SO₄) for foliar spray. The production function which gave the highest R² value (i.e. 0.82 for KRL-1-4 and 0.97 for HD 2894 wheat cultivars) could be used for foliar spray under different salinity regimes with high expectation of grain yield. The predicted grain yield and estimated quantity of potassium under different salinity levels of irrigation water may prove useful to different stakeholders for enhancing the wheat yield in high saline water areas. The stakeholders can predict the grain yield under similar circumstances as explained in this experiment and estimate the appropriate potassium doses to be applied for enhancing the wheat yield.

Keywords

Foliar Potassium Fertigation, Irrigation Water, Production Function, Salt-Tolerant Cultivar, Wheat Yield.

Full Text