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Quality-Oriented Video Delivery over LTE
Amit Pande,Vishwanath Ramamurthi,Prasant Mohapatra 한국정보과학회 2013 Journal of Computing Science and Engineering Vol.7 No.3
Long-term evolution (LTE) is emerging as a major candidate for 4G cellular networks to satisfy the increasing demands for mobile broadband services, particularly multimedia delivery. Multiple-input multiple-output (MIMO) technology combined with orthogonal frequency division multiple access and more efficient modulation/coding schemes (MCS) are key physical layer technologies in LTE networks. However, in order to fully utilize the benefits of the advances in physical layer technologies, the MIMO configuration and MCS need to be dynamically adjusted to derive the promised gains of 4G at the application level. This paper provides a performance evaluation of video traffic with variations in the physical layer transmission parameters to suit the varying channel conditions. A quantitative analysis is provided using the perceived video quality as a video quality measure (evaluated using no-reference blocking and blurring metrics), as well as transmission delay. Experiments are performed to measure the performance with changes in modulation and code rates in poor and good channel conditions. We discuss how an adaptive scheme can optimize the performance over a varying channel.
Quality-Oriented Video Delivery over LTE
Pande, Amit,Ramamurthi, Vishwanath,Mohapatra, Prasant Korean Institute of Information Scientists and Eng 2013 Journal of Computing Science and Engineering Vol.7 No.3
Long-term evolution (LTE) is emerging as a major candidate for 4G cellular networks to satisfy the increasing demands for mobile broadband services, particularly multimedia delivery. Multiple-input multiple-output (MIMO) technology combined with orthogonal frequency division multiple access and more efficient modulation/coding schemes (MCS) are key physical layer technologies in LTE networks. However, in order to fully utilize the benefits of the advances in physical layer technologies, the MIMO configuration and MCS need to be dynamically adjusted to derive the promised gains of 4G at the application level. This paper provides a performance evaluation of video traffic with variations in the physical layer transmission parameters to suit the varying channel conditions. A quantitative analysis is provided using the perceived video quality as a video quality measure (evaluated using no-reference blocking and blurring metrics), as well as transmission delay. Experiments are performed to measure the performance with changes in modulation and code rates in poor and good channel conditions. We discuss how an adaptive scheme can optimize the performance over a varying channel.
Stability of eosin-5'-maleimide dye used in flow cytometric analysis for red cell membrane disorders
Simmi Mehra,Neetu Tyagi,Pranav Dorwal,Amit Pande,Dharmendra Jain,Ritesh Sachdev,Vimarsh Raina 대한혈액학회 2015 Blood Research Vol.50 No.2
BackgroundThe eosin-5'-maleimide (EMA) binding test using flow cytometry is a common methodto measure reduced mean channel fluorescence (MCF) of EMA-labeled red blood cells(RBCs) from patients with red cell membrane disorders. The basic principle of theEMA-RBC binding test involves the covalent binding of EMA to lysine-430 on the first extracellularloop of band 3 protein. MethodsIn the present study, the MCF of EMA was analyzed for samples derived from 12 healthyvolunteers (controls) to determine the stability (i.e., the percentage decrease in fluorescence)of EMA over a period of 1 year. ResultsComparison of periodical MCF readings over time, that is, at 2-month intervals, showedthat there were no significant changes in mean channel fluorescence for up to 6 months;however, there was a significant decrease in MCF at 8 months. ConclusionFor optimal dye utilization, EMA remained stable only for up to 6 months. Therefore, werecommend reconstitution of the dye every 6 months when implementing this test andstorage at -80oC in dark conditions.
Stability of eosin-5'-maleimide dye used in flow cytometric analysis for red cell membrane disorders
Simmi Mehra,Neetu Tyagi,Pranav Dorwal,Amit Pande,Dharmendra Jain,Ritesh Sachdev,Vimarsh Raina 대한혈액학회 2015 Blood Research Vol.50 No.2
BackgroundThe eosin-5'-maleimide (EMA) binding test using flow cytometry is a common methodto measure reduced mean channel fluorescence (MCF) of EMA-labeled red blood cells(RBCs) from patients with red cell membrane disorders. The basic principle of theEMA-RBC binding test involves the covalent binding of EMA to lysine-430 on the first extracellularloop of band 3 protein. MethodsIn the present study, the MCF of EMA was analyzed for samples derived from 12 healthyvolunteers (controls) to determine the stability (i.e., the percentage decrease in fluorescence)of EMA over a period of 1 year. ResultsComparison of periodical MCF readings over time, that is, at 2-month intervals, showedthat there were no significant changes in mean channel fluorescence for up to 6 months;however, there was a significant decrease in MCF at 8 months. ConclusionFor optimal dye utilization, EMA remained stable only for up to 6 months. Therefore, werecommend reconstitution of the dye every 6 months when implementing this test andstorage at -80oC in dark conditions.
Imtiakum Jamir,Pankaj Lohia,Rajesh Kumar Pande,Rasika Setia,Amit Kumar Singhal,Abhideep Chaudhary 한국간담췌외과학회 2020 Annals of hepato-biliary-pancreatic surgery Vol.24 No.4
The impact and clinical spectrum of COVID-19 infection in liver transplant recipients/solid organ transplants are being unveiled during this recent pandemic. The clinical experience of use of current antiviral drugs and immunomodulators are sparse in solid organ transplantation. We present the clinical course of a 49-year-old male recipient who underwent living donor liver transplant for recurrent gastrointestinal bleed and contracted severe COVID-19 pneumonia during the third postoperative week. Herein we report the successful management of severe COVID-19 pneumonia using convalescent plasma therapy and remdesivir. Recipient’s clinical deterioration was halted after three consecutive convalescent plasma transfusions with improvement in hypoxia and inflammatory markers (interleukin-6 and C-reactive protein). The use of convalescent plasma therapy along with remdesivir may be an ideal combination in the management of severe COVID-19 pneumonia in solid organ transplant recipients.