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Your search keyword '"Kumar, Rakshak"' showing total 20 results
Start Over Author "Kumar, Rakshak" Publisher springer science and business media llc
20 results on '"Kumar, Rakshak"'

11. Himalayan Microbiomes for Agro-environmental Sustainability: Current Perspectives and Future Challenges

Author

Suyal, Deep Chandra, primary, Joshi, Divya, additional, Kumar, Saurabh, additional, Bhatt, Pankaj, additional, Narayan, Arun, additional, Giri, Krishna, additional, Singh, Manali, additional, Soni, Ravindra, additional, Kumar, Rakshak, additional, Yadav, Ashok, additional, Devi, Rubee, additional, Kaur, Tanvir, additional, Kour, Divjot, additional, and Yadav, Ajar Nath, additional

Published
2021
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15. Metallurgical characterizations and mechanical properties on friction welding of Incoloy 800H joints

Author

B. Arivazhagan, Paulraj Sathiya, Kumar Rakshak Anand, K. Tamilmannan, and S. Arun Kumar

Subjects
0209 industrial biotechnology, Toughness, Materials science, Mechanical Engineering, Metallurgy, 02 engineering and technology, Welding, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Microstructure, Upset, law.invention, 020901 industrial engineering & automation, Mechanics of Materials, law, Ultimate tensile strength, General Materials Science, Friction welding, Composite material, 0210 nano-technology, Base metal, Incoloy
Abstract

The present work discusses about the mechanical and metallurgical properties of Incoloy 800 H friction welded joints. The process parameters namely friction pressure, friction time, upsetting pressure, upset time, and rotational speeds were varied from low level to high level to study their effects on the properties of the weldments. The tensile tests were carried out at four different temperatures namely at room temperature, 550, 650, and 750 °C. From the results, it is observed that as the testing temperature increased, there was a reduction in tensile strength of welds. The friction welds had higher hardness than the base metals. This was due to the formation of secondary phases (γ′ and M23C6) in friction welds. The tensile and impact fracture surfaces were further analyzed through SEM and finally the individual effects of the parameters with respect to the microstructures variation in the welds were studied.

Published
2016
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16. A Prospective Study to Assess the Levels of Interleukin-6 Following Administration of Diclofenac, Ketorolac and Tramadol After Surgical Removal of Lower Third Molars

Author

Sumita G. Nishad, Sanjeev Kumar, Muhamad Nishad Thayath, Mansi Bansal, Mahendra P. Reddy, Puneet Singh, Rakesh Singh, Saurabh Kumar, Kumar Rakshak Anand, and Sanjay Rastogi

Subjects
Molar, business.industry, Trismus, Ketorolac, stomatognathic diseases, Diclofenac, Otorhinolaryngology, Opioid, Anesthesia, medicine, Surgery, Clinical significance, Tramadol, Oral Surgery, medicine.symptom, Prospective cohort study, business, Research Paper, medicine.drug
Abstract

The surgical removal of impacted third molars involves, trauma to soft and bony tissue and can result in considerable pain, swelling, and trismus. The greater the amount of tissue injury the greater is the amount of inflammation in the perisurgical region. Interleukin-6 (IL-6) is both a pro inflammatory and anti-inflammatory cytokine. It is secreted by T cells and macrophages to stimulate the immune response. IL-6 is also an early marker of tissue damage. In addition to NSAIDs, corticosteroids, opioids also have immunomodulatory effects. To evaluate the changes in serum IL-6 levels following surgical removal of third molars under local anaesthesia after administration of two NSAIDs diclofenac and ketorolac and opioid tramadol post operatively. Patients undergoing surgical removal of impacted mandibular third molar teeth were randomly assigned to three groups. Each group received one of the three analgesics viz diclofenac 50 mg, ketorolac 10 mg and tramadol 50 mg. The mean levels of IL-6 was then estimated by ELISA. The results of our study showed that all three drugs i.e. diclofenac, ketorolac and tramadol have properties which can downregulate the production of IL-6 in response to surgical trauma. It is of clinical significance that the suppression of IL-6 values occurs in tramadol group closely following the diclofenac group. Even though the drug ketorolac suppresses the IL-6 levels similar to diclofenac initially but after 7 days tramadol and ketorolac showed similarities in suppression of IL-6 expression which is less compared to diclofenac group.

Published
2014
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18. A Prospective Study to Assess the Levels of Interleukin-6 Following Administration of Diclofenac, Ketorolac and Tramadol After Surgical Removal of Lower Third Molars

Author

Singh, Puneet, primary, Rastogi, Sanjay, additional, Bansal, Mansi, additional, Kumar, Sanjeev, additional, Singh, Rakesh, additional, Nishad, Sumita G., additional, Reddy, Mahendra P., additional, Anand, Kumar Rakshak, additional, Kumar, Saurabh, additional, and Thayath, Muhamad Nishad, additional

Published
2014
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