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7. Design and performance analysis of WDM-FSO communication system using Polarization Shift Keying.

Author

Dwivedi, Shruti, Singh, Garima, Sisodia, Divya, and Kaur, Gurjit

Subjects
FREE-space optical technology, WAVELENGTH division multiplexing, EXTREME weather, TELECOMMUNICATION systems, COMMUNICATION models
Abstract

FSO is the best communication medium for data transmission because of its high bandwidth, effective deployability and maximum transmission data rates with very high security. In this research paper an optical network model has been designed in the optisystem for different modulation schemes with WDM to enhance the capacity of the system. Attenuations for different weather conditions in Dehradun have been calculated and the performance has been evaluated accordingly. The performance is analysed in terms of BER (Bit Error Rate), maximum Q-factor, and eye height for each of the modulation schemes at different transmission distances and different weather attenuations. Analysis comprehends that the polarization shift keying is the best modulation technique for the WDM-FSO communication network among all. Thus, we suggest a model for an optical communication network using WDM and PolSK modulation scheme for Dehradun (Uttarakhand), where internet service is not very easy due to its extreme weather variations and got the excellent performance. [ABSTRACT FROM AUTHOR]

Published
2024
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9. List of contributors

Author

Adhikari, Nav Raj, primary, Agrawal, Ganesh Kumar, additional, Ahmad, Niaz, additional, Ahmad, Rumana, additional, Araujo, Fabricio Almeida, additional, Aslam, Sidra, additional, Aydın, Yıldız, additional, Barh, Debmalya, additional, Benkeblia, Noureddine, additional, Benko-Iseppon, Ana Maria, additional, Bhardwaj, Ragini, additional, Binneck, Eliseu, additional, Bozhilova-Sakova, Milena Georgieva, additional, Braga, Marcus de Barros, additional, Buckseth, Tanuja, additional, Challam, Clarissa, additional, Choudhary, Ashish Kumar, additional, da Silva, Manassés, additional, da Silva, Wilson, additional, Das, Sauren, additional, De Los Santos, Edian Franklin Franco, additional, Dhakar, Kusum, additional, Dhir, Sunny, additional, Dhkal, Manmohan, additional, Dimitrova, Ivona Vassileva, additional, Dwivedi, Shruti, additional, Dwivedi, Upendra N., additional, Dwivedi, Vikas, additional, Eizenberg, Hanan, additional, Elias, Sabrina, additional, Ferreira-Neto, José Ribamar Costa, additional, Freilich, Shiri, additional, Gaikwad, Kishor, additional, Gaur, Rajarshi Kumar, additional, Gautam, Ranjana, additional, Ghosh, Sewali, additional, Gilles, Tijs, additional, Gupta, Archit, additional, Gupta, Kapil, additional, Gupta, Om Prakash, additional, Gupta, Ravi, additional, Gupta, Romasha, additional, Gupta, Supriya, additional, Haque, Taslima, additional, Hazra, Anjan, additional, Hossain, Md. Anowar, additional, Iyer, Niranjani, additional, Jaiswar, Akanksha, additional, Jasrotia, Rahul Singh, additional, Kaila, Tanvi, additional, Kamboj, Disha, additional, Kaur, Manjot, additional, Kaur, Parampreet, additional, Kaur, Ramandeep, additional, Khatri, Nisha, additional, Kido, Éderson Akio, additional, Kim, Sun Tae, additional, Kumar, Ashwani, additional, Kumar, Dileep, additional, Kumar, Manoj, additional, Kumar, Pradeep, additional, Kumar, Pravin, additional, Kumar, Satish, additional, Kumar, Shailesh, additional, Kushwaha, Ujjawal Kumar Singh, additional, Lucas, Stuart J., additional, Mahadani, Pradosh, additional, Malo, Richard, additional, Maurya, Suresh Kumar, additional, Meena, Nand Lal, additional, Meena, Vijay Singh, additional, Mehmood, Muhammad Aamer, additional, Minkina, Tatiana, additional, Mishra, Chandra Nath, additional, Mohideen, Habeeb Shaik, additional, Mor, Poonam, additional, Mukhopadhyay, Kunal, additional, Nanda, Satyabrata, additional, Narad, Priyanka, additional, Narayan, Aditya, additional, Natarajan, Nandakumar, additional, Negi, Chandranandani, additional, Nehra, Chitra, additional, Noor, Fatima, additional, Pal, Lalita, additional, Pandey, Veda P., additional, Petrov, Nikolay Manchev, additional, Poddar, Raju, additional, Prasad, Birendra, additional, Rahman, Mehboob-ur, additional, Rajput, Vishnu D., additional, Rakwal, Randeep, additional, Ramos, Rommel Thiago Jucá, additional, Rani, Asha, additional, Redhu, Neeru S., additional, Rishi, Narayan, additional, Riyazuddin, Riyazuddin, additional, Ronen, Zeev, additional, Sangeetha, Jeyabalan, additional, Sarkar, Abhijit, additional, Satapathy, Lopamudra, additional, Sengupta, Abhishek, additional, Seraj, Zeba, additional, Shahid, Saima, additional, Sharma, Pradeep, additional, Sharma, Priti, additional, Sharma, Swati, additional, Sheikh, Imran, additional, Shohan, Mohammad Umer Sharif, additional, Singh, Abhishek, additional, Singh, Ajeet, additional, Singh, Anil Kumar, additional, Singh, Anuradha, additional, Singh, Dharmendra, additional, Singh, Gyanendra Pratap, additional, Singh, Nisha, additional, Singh, Rajesh K., additional, Sonawala, Kevina, additional, Srivastava, Sudhanshu, additional, Stoyanova, Mariya Ivanova, additional, Tanveer, Aiman, additional, Thakur, Zoozeal, additional, Thangadurai, Devarajan, additional, Tiwari, Jagesh Kumar, additional, Tiwary, Basant K., additional, Torres, Renato Hidaka, additional, Tripathy, Sanjaya Shankar, additional, Tyagi, Aruna, additional, Ujinwal, Megha, additional, Uncuoğlu, Ahu Altınkut, additional, Verma, Rakesh Kumar, additional, Vyas, Pritesh, additional, Yadav, Ajit Kumar Singh, additional, Yadav, Anurag, additional, Yadav, Dinesh, additional, Yadav, Kanchan, additional, Yadav, Kusum, additional, Yadav, Manoj Kumar, additional, Yadav, Pramod Kumar, additional, Yashveer, Shikha, additional, Zarecki, Raphy, additional, and Şahin, Ezgi Çabuk, additional

Published
2022
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13. List of contributors

Author

Agrawal, Ruchika, primary, Ajakkala, Pallavi Bhat, additional, Ali, Amjad, additional, Ali, Qinza, additional, Anand, Gautam, additional, Awan, Faryal Mehwish, additional, Awan, Hayeqa Shahwar, additional, Basheer, Amina, additional, Bhattacharjee, Maloyjo Joyraj, additional, Carvalho, Isabel S., additional, Chapman, James, additional, Cozzolino, Daniel, additional, Deekshit, Vijaya Kumar, additional, Din, Salah ud, additional, Dwivedi, Shailendra, additional, Dwivedi, Shruti, additional, Gupta, Supriya, additional, Hassan, Mubashir, additional, He, Zhixia, additional, Hemaiswarya, Shanmugam, additional, Hsu, Chia-Hsien, additional, Ikram, Aqsa, additional, Ivana, Špaková, additional, Izci, Yusuf, additional, Kandasamy, Sabariswaran, additional, Katarína, Šoltýs, additional, Kishore, Surekha, additional, Krishna Kumar, Ballamoole, additional, Kumar, Manish, additional, Lundstrom, Kenneth, additional, Marek, Kľoc, additional, Mária, Mareková, additional, Miroslava, Rabajdová, additional, Misra, Radhieka, additional, Misra, Sanjeev, additional, Mohan Raj, Juliet Roshini, additional, Naqvi, Sawaira, additional, Narayanan, Mathiyazhagan, additional, Naz, Anam, additional, Peter, Urdzík, additional, Purohit, Purvi, additional, Rai, Praveen, additional, Raja, Rathinam, additional, Sangwan, Neelam, additional, Shahid, Fatima, additional, Shahzadi, Saba, additional, Sheikh, Nishat Ahmed, additional, Siddique, Ammara, additional, Tanveer, Aiman, additional, Tezcan, Tugba, additional, Tiwary, Basant K., additional, Truong, Vi Khanh, additional, Vasudeva, Abhimanyu, additional, Waseem, Maaz, additional, Yadav, Dinesh, additional, Yadav, Kanchan, additional, Yadav, Nisha, additional, Yadav, Pramod K., additional, Yaseen, Zainab, additional, and Zaheer, Tahreem, additional

Published
2022
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18. Study on variations of the vascular and extrahepatic biliary system in laparoscopic cholecystectomy and its associated outcomes.

Author

Katti, Subhash Chandra Prakash, Dwivedi, Shruti, and Nagula, Bhanu Prasad

Subjects
*CHOLANGIOGRAPHY, *CHOLECYSTECTOMY, *CARDIOVASCULAR system, *SURGICAL complications, *LAPAROSCOPIC surgery, *POSTOPERATIVE period, *ANATOMICAL variation
Abstract

Background- Anatomical variations in the hepatobiliary system are usually asymptomatic. However, it is very important to know the anatomy to avoid unwanted complications during surgery and in the postoperative period Materials and methods:- 80 patients with cholecystitis who presented to the department of surgery, KIMS, Narketpally, who underwent laparoscopic cholecystectomy, were included in this prospective study. Results: - Out of the 80 patients, variable anatomy of the biliary system and vascular system was found in 20 patients, of whom, 15 had variations in the biliary system and 5 patients had variations in the vascular system. 3 patients with variable anatomy developed complications. 6 patients had to be re-explored by conversion into open cholecystectomy due to frozen Calot's triangle. Conclusion:- Variations in biliary anatomy and vascular system are diverse. Few such variations were confirmed with this study, thereby implying the need for in-depth knowledge about congenital anomalies of the biliary system. [ABSTRACT FROM AUTHOR]

Published
2023

27. Genome mining of Fusariumreveals structural and functional diversity of pectin lyases: a bioinformatics approach

Author

Yadav, Kanchan, Dwivedi, Shruti, Gupta, Supriya, Dubey, Amit K., Singh, Vinay K., Tanveer, Aiman, Yadav, Sangeeta, and Yadav, Dinesh

Abstract

Pectin lyase (PNL) is an important enzyme of the pectinases group which degrades pectin polymer to 4,5-unsaturated oligogalacturonides by a unique β-elimination mechanism and is used in several industries. The existence of multigene families of pectin lyases has been investigated by mining microbial genomes. In the present study, 52 pectin lyase genes were predicted from sequenced six species of Fusarium,namely F. fujikuroi,F. graminearum,F. proliferatum,F. oxysporum,F. verticillioidesand F. virguliforme.These sequences were in silicocharacterized for several physico-chemical, structural and functional attributes. The translated PNL proteins showed variability with 344–1142 amino acid residues, 35.44–127.41 kDa molecular weight, and pI ranging from 4.63 to 9.28. The aliphatic index ranged from 75.33 to 84.75. Multiple sequence alignment analysis showed several conserved amino acid residues and five distinct groups marked as I, II, III, IV, and V were observed in the phylogenetic tree. The Three-dimensional Structure of five of these PNLs, each representing a distinct group of phylogenetic trees was predicted using I-TASSER Server and validated. The pectin lyase proteins of Fusariumspecies revealed close similarity with pectin lyase of Aspergillus nigerPelA(1IDJ) and PelB(1QCX). Diversity in the structural motifs was observed among Fusariumspecies with 2 β-sheets, 1 β-hairpin, 7–12 β bulges, 18–25 strands, 6 -11 helices, 1 helix-helix interaction, 32–49 β turns, 2–6 γ turns and 2- 3 disulfide bonds. The unique Pec_lyase domain was uniformly observed among all PNL proteins confirming its identity. The genome-wide mining of Fusariumspecies was attempted to provide the diversity of PNLgenes, which could be explored for diverse applications after performing cloning and expression studies.

Published
2022
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