Suchergebnisse

1. Biodegradation of Floral Waste under Aerobic Conditions with Different Microbial Inocula and Aeration Methods -- 2. The Treatment of Landfill Leachate and Other Wastewaters Using Constructed Wetlands -- 3. Occurrence of Natural Radioactivity, its Elevated Levels in Ground Water and Implications -- 4. Refuse Derived Fuel (RDF) Production and Utilisation Potential from Municipal Solid Waste (MSW) in India -- 5. Impact of Sandstone Quarrying on the Health of Quarry Workers and Local Residents: A Case Study of Keru, Jodhpur, India -- 6. Incorporation of Life Cycle Thinking in Development of Integrated Solid Waste Management Systems -- 7. Reuse and Recycle: A Green Chemistry Approach -- 8. An Integrated Solid Waste Management (ISWM) Plan Using Google Earth and Linear Programming: A Case Study of Kharagpur City, West Bengal -- 9. Optimization of F/M Ratio during Anaerobic Codigestion of Yard Waste with Food Waste: Biogas Production and System Stability -- 10. An Overview of the Municipal Solid Waste Management Rules in India -- 11. Environmental Implications of High Radiation in Beach Placers -- 12. Wastes to Wealth for Bioenergy Generation -- Index.

A miniaturised gigahertz transverse electromagnetic (GTEM) cell is designed and fabricated to generate uniform electric (E-) field, essential for studying the radio frequency exposure effect on tissue equivalent liquids at global system for mobile (GSM) communication frequencies (914 MHz and 2.10 GHz). The simulation procedure is discussed and its results are compared with measurement data. The E-field strength inside the GTEM cell is scanned using a microstrip based E-field probe and complete uncertainty evaluation procedure is discussed. Theoretically, simulated and measured E-field strength is reported with expanded uncertainty.

With the increased use of wireless communication in recent years, the use of reverberation chamber (RC) has increased to a great extent. Reverberation chambers have been eminently used for EMC testing and shielding effectiveness. The environment it provides is very similar to the reverberant surroundings that antenna undergoes in real life use. An experiment to measure total radiated power of antenna, antenna efficiency and quality factor of chamber in indoor environment is proposed. This will make the measurement very simple and inexpensive as designing and calibration of chamber will not be needed. In this paper, we have used three different techniques to compare total radiated power, quality factor, Rician K factor and efficiency of a patch antenna measured in indoor environment with RC data. The three method used include plate stirring method and two time domain methods. The time domain methods use modulated pulse and Gaussian pulse respectively for the measurement. The antenna and chamber parameters are measured in the real time and the data matched well with the RC data for different techniques.

BACKGROUND: Coronavirus disease (COVID-19) has spread very fast worldwide as a pandemic causing unprecedented morbidity and mortality. Most countries in the world have undergone emergency lockdown in an attempt to flatten the curve and reduce the load on healthcare systems. OBJECTIVE: This study was done to assess the knowledge, attitude, and perception toward the disease among the home-bound Indian population during the lockdown. METHODOLOGY: This was a questionnaire-based descriptive cross-sectional study conducted online. Compilation and assessment of the online data in the form of responses were done as for descriptive studies. RESULTS: Among the 320 participants of the study, the awareness about the epidemiological features, including the signs and symptoms of the disease, was very good (more than 99% in some aspects). The attitude toward the measures for prevention of disease at home and outside was also very good (more than 97%) in some aspects, with a scope of improvement in a few others. Only one-third had the knowledge of online (e-consultation) services floated by governments and hospitals for medical advice. Ten percent had the potential to misuse drugs as prophylaxis. Most of the participants perceived that they had no predictable idea about the shape of disease epidemiology in the near future and only hoped for things to get better. CONCLUSION: This study reflects that aggressive awareness drives have played an important role in the dissemination of knowledge and the development of informed positive attitude toward COVID-19. Few gaps in knowledge and practices related to disease epidemiology, safe practices, mobile app for tracking and the availability of e-resources for medical advice, still remain. These should be addressed more aggressively, to strengthen the efforts to overcome this unprecedented crisis.

Sorghum ( Sorghum vulgare Pers.) popularly known as jowar is the most important food and fodder crop of dry land agriculture. It is generally grown in both Kharif and Rabi season, with sown area of 25.3 and 38.3 lakh ha, respectively, at National level. The major states contributing to national sorghum acreage are Karnataka and Maharashtra. Crop acreage and yield estimation is of great significance to develop food policies and economic plans for a country. In this regard, under FASAL project, Sorghum production estimation is being carried out since 2013-14. Data from December to January is used for classification considering the peak season of crop. The satellite data used for classification has been gradually changed from Resourcesat 2 LISS III/ Landsat 8 OLI to Sentinel 2. Ground Truth has played major role to support the classification methodology. Total 1,409 GT points have been collected so far for both the states, with the help of state agriculture departments. NDVI based Crop Cutting Experiment (CCE) points are also generated and given to State for conducting the experiments at ground level. District level Sorghum crop yield is estimated using two procedures - i) Agro-meteorological regression models, ii) Remote sensing index based empirical models. The state and district level estimates were compared with government estimates. At state level the RMSE was found ranging from 6.5% to 34.7% and correlation (r) was found ranging from 071 to 0.87. At district level, the correlation between FASAL project estimates and government estimates ranged between 0.80 to 0.95. Overall, the paper discusses, the experience gained from the Rabi sorghum production estimation, in last 5 years, under FASAL project and the scope of improvement.