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PAPR Reduction of NOMA Using Vandermonde Matrix-Particle Transmission Sequence

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Computer Systems Science & Engineering 2022年第10期43卷 193-201页

作者： Arun Kumar sandeep gupta Himanshu Sharma Mehedi Masud Department of Electronics and Communication Engineering JECRC UniversityJaipur303905India Department of Electrical Engineering JECRC UniversityJaipur303905India Department of Computer Science and Engineering JECRC UniversityJaipur303905India Department of Computer Science College of Computers and Information TechnologyTaif University11099Saudi Arabia

Non-Orthogonal Multiple Access(NOMA)is an ideal choice for 5G waveforms due to their characteristics such as high data rate,massive device connectivity,high spectral access,and effective frequency selective ***,it permits gigantic *** spectrum overlaps with NOMA,which consents several operators to segment the spectrum at the same *** features make NOMA more suitable for use beyond *** to Average Power(PAPR)is a major problem in Multi-Carrier Techniques(MCT)like NOMA and it also degrades the performance of the *** Partial Transmission Sequence(PTS)is a superior algorithm for moderating the ***,it also increases the complexity of the *** PAPR is reduced in NOMA by multiplying the NOMA signal with optimised phase vectors(P).The phase vectors are generated by using the Vandermonde Matrix(VM).In this work,we proposed a VM-PTS algorithm for the NOMA system,and the number of computations to search the optimal phase vectors for NOMA high PAPR signal is less as compared with existing *** outcomes demonstrate that the performance of the recommended PTS in terms of PAPR,Bit Error Rate(BER),and complexity is better than the conventional PTS(C-PTS).

关键词： VM-PTS NOMA PAPR 5G

Gallbladder and cystic duct agenesis diagnosed laparoscopically

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Hepatobiliary & Pancreatic Diseases International 2010年第1期9卷 107-108页

作者： Nikhil gupta sandeep K gupta Harmeet Singh Kapoor Department of Surgery Maulana Azad Medical College Department of Surgery Sri Balaji Action Medical Institute

To the Editor:Anatomical variations of the biliary tree are not un-common but isolated agenesis of the gallbladder is rare,[1]with a reported incidence of 0.013%-0.075%.[2]Thisvariation remains undiagnosed since the p... 详细信息

关键词： Gallbladder and cystic duct agenesis diagnosed laparoscopically

Effect of plumbagin free alcohol extract of Plumbago zeylanica Linn,root on reproductive system of female Wistar rats

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Asian Pacific Journal of Tropical Medicine 2011年第12期4卷 978-984页

作者： gupta sandeep Ahirwar Dheeraj Sharma Neeraj Kumar Jhade Deenanath Ahirwar Bharti School of Pharmacy Chouksey Engineering CollegeBilaspur(C.G.)India 495001 SLT Institute of Pharmaceutical Sciences Guru Ghasidas University.Bilaspur(C.G.)India 495001

Objective:To assess the effect of plumbagin-free alcohol extract（PFAE） of Plumbago zeylanica Linn.（Plumbaginaceae）（***） root,on female reproductive system and ferlility of adult Female wislar ***:After the oral acute toxicity study,the PFAE was administered at two dose levels to perform the estrous cycle study,anti-implantation and ahortifacient activity and hormonal ***,the estrogenic/antiestrogenic activity was evaluated at only one most effective ***:LD50 cut-off was 5 000 mg/kg body *** extract exhibited significant anti-implantation and ahortifacient activity at the tested dose levels（300 and 500 mg/ kg.p.o.）（P<0.01）.The extract dose-dependency decreased the levels of serum progesterone, follicle stimulating hormone and luteinizing hormone,while a dose-dependent increase was observed in the concentration of serum *** extract did not show any significant changes in structure and function of Uterus when given alone,hut when given along with ethinyl estradiol,it exhibited significant antiestrogenic activity in immature overieclonzed female rats（P<0.001） Biochemical parameters in the serun/blood and haematological parameters did not show appreciable changes throughout and after the course of ***,all the altered parameters returned to normalcy within 30 days following withdrawal of treatment. Conclusions:All findings suggest that the anlifcrtility activity of extract could possibly he through the changes in the implantation site,altered hormonal levels,prolonged estrous cycle and anti-estrogenic ***,the extract possesses reversible antifcrtility activity without adverse toxicity in female rats.

关键词： Anti-implantation Abortilacient Estrogenic/antiestrogenic activity Progesterone Follicle stimulating hormone Luteinizing hormone Prolactin Ethinyl estradiol Overiectomized Haematological

The role of trochanteric flip osteotomy in fixation of certain acetabular fractures

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Chinese Journal of Traumatology 2017年第3期20卷 161-165页

作者： sandeep gupta Jagdeep Singh Jagandeep Singh Virk Department of Orthopaedics Government Medical College and Hospital (GMCH) Chandigarh India Department of Orthopaedics Guru Gobind Singh Medical College and Hospital (GGSMCH) Faridkot India

Purpose： Complete visualization of certain acetabular fractures of posterior wall or column with cranial extension involving superior dome from standard surgical exposures is a challenge. Osteotomy of the greater trochanter has been used to enhance fracture visualization, especially the dome, in posterior and lateral exposures of the acetabulum, it also decreases the need for excessive muscle retraction. The purpose of the study was to investigate the outcome associated with trochanteric flip osteotomy in the management of certain acetahulum fractures. Methods： From January 2011 to December 2013, 25 displaced acetabular fractures were treated by open reduction and internal fixation. The fractures were managed using a Kocher-Langenbeck approach along with trochanteric flip osteotomy. At 3rd, 6th and 24th month follow-up, all patients had radiographic examination and underwent a final clinical evaluation based on the modified Merle d＇Auhigne and Postei score. The strength of the abductors was assessed according to the Medical Research Council （MRC） grading system. Results： Congruent reduction was achieved in all patients and all osteotomies healed within an average period of 3.8 months. All our patients were allowed full weight bearing at the end of 3 months and with no abductor lurch at the end of 6 months follow-up. There were no cases of avascular necrosis of femoral head. None of the patients had any neurovascular complication or infection by the end of the follow-up period. Conclusion： Truchanteric flip osteotomy is a very effective technique to fix certain acetabular fractures especially those with dome involvement. It is more accurate and associated with no significant com- plications compared with conventional way.

关键词： Kocher-Langenbeck approach Acetabular fractures Trochanteric osteotomy Posterior wall Superior dome

Use of tricortical iliac crest strut autograft in comminuted posterior wall acetabular fractures： A case series

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Chinese Journal of Traumatology 2018年第1期21卷 58-62页

作者： sandeep gupta Naveen Mittal Jagandeep Singh Virk Department of Orthopaedics Government Medical College Hospital Chandigarh India

Purpose： The results for fixation of comminuted posterior wall acetabular fractures are not very promising with reported complications in terms of osteoarthritis, nonunion and malunion which subsequently require conversion to total hip arthroplasty. The conversion to total hip arthroplasty is possible in patients over 50 years of age but not in younger patients. So this requires new methods for salvage of the native hip in young patients. Methods： There were six patients in our series with highly comminuted posterior wall acetabular frac- tures where the fragments were excised and the gap filled with tricortical anterior iliac-crest strut autograff, fixed with screws and plate. Results： Good results were achieved in four out of six patients analyzed clinically using the Merle d＇Aubinge score modified by Matta and radiologically by Matta scoring. These patients have returned to original work and are walking independently. The good result in one patient deteriorated from good to poor between one and two years. One patient developed infection and excision arthroplasty was done, The graft incorporated well in five out of six patients. Conclusion： The use of iliac crest autograff is a better, advanced and promising technique as it provides a new wall to the weight bearing dome of the acetabulum for articulation with the femoral head. The rates of nonunion, malunion, post traumatic osteoarthritis are less as compared to the fixation of the comminuted fragments. The need for conversion to total hio arthroolastv is also less.

关键词： Young patients Comminuted posterior wall Tricortical iliac crest

Seismic Imaging of the Upper Mantle under the Erebus Hotspot in Antarctica

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地学前缘 2009年第S1期16卷 205-205页

作者： sandeep gupta S.S.Rai National Geophysical Research Institute(CSIR)

P-wave velocity images are determined under the Mount Erebus hotspot,Antarctica by using teleseismic *** results show a prominent low-velocity(low-v)anomaly of nearly circular symmetry(about 250-300 km in diameter)to about 200 km depth under the Mount Erebus volcanic region,which further extends down to～400 km as a narrow tilted *** observed low-v anomaly beneath the Mount Erebus volcano can be an expression of a thermal anomaly of deep origin.

关键词： Mount Erebus Antarctica hotspot teleseismic tomography

Formation and Evolution of Dharwar Craton in South India-Synthesis from Broadband Seismological Experiment

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地学前缘 2009年第S1期16卷 203-203页

作者： sandeep gupta S.S.Rai K.S.Prakasam National Geophysical Research Institute(CSIR) Hyderabad(INDIA)National Geophysical Research Institute

Understanding the structure,composition and survival of Archaean cratons over geological times is critical to model the process of crustal *** South India Broadband Seismic Imaging Experiment was organized to answer fundamental questions of craton formation,with the principal objective of characterizing physico-chemical nature of the crust and mantle of Dharwar craton and adjoining terrains.

关键词： South India craton Himalaya waveform modeling Archaean crust

Development of Diagnostics for High-Temperature High-Pressure Liquid Pb-16Li Applications

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World Journal of Nuclear Science and Technology 2017年第4期7卷 292-308页

作者： Abhishek Saraswat Srikanta Sahu T. Srinivas Rao Ashokkumar Prajapati Shrikant Verma sandeep gupta Mritunjay Kumar Rajendraprasad Bhattacharyay Partha Das Institute for Plasma Research Gandhinagar India Bhabha Atomic Research Centre Mumbai India

Liquid lead-lithium (Pb-16Li) is of primary interest as one of the candidate materials for tritium breeder, neutron multiplier and coolant fluid in liquid metal blanket concepts relevant to fusion power plants. For an effective and reliable operation of such high temperature liquid metal systems, monitoring and control of critical process parameters is essential. However, limited operational experience coupled with high temperature operating conditions and corrosive nature of Pb-16Li severely limited application of commercially available diagnostic tools. This paper illustrates indigenous calibration test facility designs and experimental methods used to develop non-contact configuration level diagnostics using pulse radar level sensor, wetted configuration pressure diagnostics using diaphragm seal type pressure sensor and bulk temperature diagnostics with temperature profiling for high temperature, high pressure liquid Pb and Pb-16Li applications. Calibration check of these sensors was performed using analytical methods, at temperature between 380°C - 400°C and pressure upto 1 MPa (g). Reliability and performance validation were achieved through long duration testing of sensors in liquid Pb and liquid Pb-16Li environment for over 1000 hour. Estimated deviation for radar level sensor lies within [−3.36 mm, +13.64 mm] and the estimated error for pressure sensor lies within 1.1% of calibrated span over the entire test duration. Results obtained and critical observations from these tests are presented in this paper.

关键词： Sensor Lead-Lithium Liquid Metal Fusion Blanket

Crustal Tomography Under the Median Tectonic Line in Southwest Japan Using P and PmP data

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地学前缘 2009年第S1期16卷 67-67页

作者： sandeep gupta Dapeng Zhao M.Ikeda S.Ueki S.S.Rai National Geophysical Research Institute Council of Scientific and Industrial Research Department of Geophysics Tohoku University Department of Civil Engineering Shikoku Research Institute

The Median Tectonic Line(MTL)is the largest active fault system on the Japan Islands and underlies many densely populated *** understand the seismotectonics and to reduce seismic hazard in the MTL region,we determined a detailed 3-D crustal structure under the region using a large number of arrival times of the first P-waves and Moho-reflected waves(PmP).Results of detailed resolution tests show that the addition of PmP data can significantly improve the resolution of the lower crustal structure and the entire crustal structure can be imaged better than that by using P-wave data ***

关键词： median tectonic line(MTL) seismic tomography hazard mitigation low-velocity anomalies fluids