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Performance Analysis and Throughput Enhancement of the STET Technique for WLAN IEEE 802.11ad

Computer Systems Science & Engineering 2022年第2期40卷 571-579页

作者： M.Vanitha J.kirubakaran k.radhika Department of Electronics and Communication Engineering Saveetha Engineering CollegeChennai602105India Department of Electronics and Communication Engineering Muthayammal Engineering CollegeRasipuram637408India

The IEEE 802.11ad innovation has enabled the impact of remote devices in unauthorized 60 GHz unlicensed frequency band at Giga bits per second information transfer rate in speed concentrated 5G *** have presented an innovative work that deals with the upgradation of the ability of IEEE 802.11ad wireless LAN to make it suitable for wireless *** exact examination on the IEEE 802.11ad analysis has been carried out in this work to achieve the greatest *** has pulled attraction in broad consideration for accomplishing the pinnacle transmission rate of 8 Gbit/*** 802.11ad is a convention utilized for extremely high information rates(around 8 Gbit/s)and for short range remote correspondence of around 1 to 10 *** Multi-layer with Multi-User Multiple Input Multiple-Output(MLMU-MIMO)innovation has enabled transmission of multiple information packets all the while from the WLAN IEEE 802.11 ad Access Point(AP)to various receivers by means of different wireless *** help the MLMU-MIMO innovation at Medium Access Control(MAC),a new method called Simultaneous Transmission for Enhanced Throughput(STET)has been presented for enhancement of the transmission rate of the wireless standard.A mathematical model has been used for the evaluation of the performance of an IEEE 802.11ad AP empowering the STET allocation *** STET model can help determination of the throughput improvement of a STET technique,for example,audio information,images,good quality and foundation *** main goal of this work is to analyze the improvement of the STET allocation technique in regard to the usage of rare frequency band,when obtaining spectrum access between the various access *** theoretical and simulation outcomes are also confirmed by Riverbed modeler 17.5 simulation tool.

关键词： WLAN STET MAC

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Automatic area estimation of algal blooms in water bodies from UAV images using texture analysis

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Water Science and Engineering 2024年第1期17卷 62-71页

作者： Ajmeria Rahul Gundu Lokesh Siddhartha Goswami R.N.Ponnalagu radhika Sudha Department of Electrical and Electronics Engineering Birla Institute of Technology&SciencePilani Hyderabad CampusTelangana 500078India

Algal blooms,the spread of algae on the surface of water bodies,have adverse effects not only on aquatic ecosystems but also on human *** adverse effects of harmful algal blooms(HABs)necessitate a convenient solution for detection and *** aerial vehicles(UAVs)have recently emerged as a tool for algal bloom detection,efficiently providing on-demand images at high spatiotemporal *** study developed an image processing method for algal bloom area estimation from the aerial images(obtained from the internet)captured using *** a remote sensing method of HAB detection,analysis,and monitoring,a combination of histogram and texture analyses was used to efficiently estimate the area of *** features like entropy(using the kullback-Leibler method)were emphasized with the aid of a gray-level co-occurrence *** results showed that the orthogonal images demonstrated fewer errors,and the morphological filter best detected algal blooms in real time,with a precision of 80%.This study provided efficient image processing approaches using on-board UAVs for HAB monitoring.

关键词： Algal bloom Image processing Texture analysis Histogram analysis Unmanned aerial vehicles

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Clinical competency:perceptions of nursing interns and clinical mentors

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Frontiers of Nursing 2024年第1期11卷 105-110页

作者： Jackline Prathibha radhika R.Pai Linu Sara George Fundamentals of Nursing Manipal College of NursingManipal Academy of Higher EducationManipalKarnataka 576104India

Objective:To assess the clinical competency of nursing interns and the perception of clinical nurse mentors toward student nurses'clinical ***:A study was carried out among 104 nursing interns and 26 clinical nurse mentors using the purposive sampling technique.A self-repor ted perception scale was used to collect the ***:In general,most nursing interns perceived themselves as clinically competent during the *** clinical nurse mentors too repor ted that the current internship is helping the nursing interns in becoming ***:Frequent clinical evaluation,buddy system,provision of stipends,good leadership,and coordination between the academic institute and hospital are repor ted as the critical motivating factors for improving the clinical competency of student interns.

关键词： clinical competency clinical nurse mentors competence internship nursing interns perception

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User Perspective of Misplaced PPIUCD and Factors Resulting in PPIUCD Removal: Qualitative Pilot Study

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Open Journal of Epidemiology 2024年第3期14卷 517-532页

作者： A. G. radhika Rashmi Gupta Pooja kashyap Ravleen Bakshi Department of Obstetrics and Gynecology University College of Medical Sciences & Guru Teg Bahadur Hospital Dilshad Garden Delhi India GTB Hospital Delhi India Indian Council of Medical Research Delhi India

Objective: The aim of the current study was to assess the impact of operative interventions for misplaced device among women who opted for PPIIUCD and the evaluation of reasons for PPIUCD removal within the follow up period of two years. Design: A descriptive exploratory study was conducted over three months among fourteen PPIUCD acceptors at a tertiary care health facility in Delhi, India. Face-to-face & telephonic in-depth interviews were conducted with a selected sample of PPIUCD acceptors who had later opted for its removal. Results: Participants (n = 14) aged 24 – 40 exhibited generally positive attitudes towards PPIUCDs indicating an indicate an understanding of the importance of PPIUCD in preventing unintended pregnancies. Menstrual disturbance and misplaced IUCD were major reasons for removal. despite their own experience necessitating the removal of IUCD, positive experience by other family members (mothers in law) in this study helped to keep the confidence on the contraceptive. Themes included (a) general experience of PPIUCD use (b) Health Facility accessed for removal of IUCD (c) Would she recommend it to others? (d) preferred contraceptive after removal of IUCD. Conclusion: Misplaced IUCD, missing thread, menstrual irregularities, and pain are all associated with PPIUCD and are important reasons for dissatisfaction. Appropriate, timely and supportive individualized care that address knowledge gaps, societal perceptions, and healthcare system challenges would certainly help in reducing dissatisfaction due to PPIUCD and thereby the removal rates.

关键词： Postpartum Intrauterine Device PPIUCD LARC Long Acting Reversible Contraception Postpartum Family Planning Contraception

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CDC7 inhibition impairs neuroendocrine transformation in lung and prostate tumors through MYC degradation

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Signal Transduction and Targeted Therapy 2024年第8期9卷 3519-3532页

作者： Alvaro Quintanal-Villalonga kenta kawasaki Esther Redin Fathema Uddin Swanand Rakhade Vidushi Durani Amin Sabet Moniquetta Shafer Wouter R.karthaus Samir Zaidi Yingqian A.Zhan Parvathy Manoj Harsha Sridhar Dennis kinyua Hong Zhong Barbara P.Mello Metamia Ciampricotti Umesh k.Bhanot Irina Linkov Juan Qiu radhika A.Patel Colm Morrsey Sanjoy Mehta Jesse Barnes Michael C.Haffner Nichlas D.Socci Richard P.koche Elisa de Stanchina Sonia Molina-Pinelo Sohrab Salehi Helena A.Yu Joseph M.Chan Charles M.Rudin Department of Medicine Thoracic Oncology ServiceMemorial Sloan Kettering Cancer CenterNew YorkNYUSA Cancer Biology and Genetics Program Sloan Kettering InstituteMemorial Sloan Kettering Cancer CenterNew YorkNYUSA Vagelos College of Physicians and Surgeons Columbia UniversityNew YorkNYUSA Weill Cornell Graduate School of Medical Sciences Weill Cornell MedicineNew YorkNYUA Human Oncology and Pathogenesis Program Memorial Sloan Kettering Cancer CenterNew YorkNYUSA Center for Epigenetics Research Memorial Sloan Kettering Cancer CenterNew YorkNYUSA Pathology Core Facilty Department of Pathology and Laboratory MedicineMSKCCNew YorkNYUSA Antitumor Assessment Core Memorial Sloan Kettering Cancer CenterNew YorkNYUSA Divisionsof Human Biology and Clinical Research Fred Hutchinon Cancer CenterSeattleWAUSA Deparmentof Urology University of WashingtonSeattleWAUSA Gene Editing&Screening Core Facility Memorial Sloan kettering Cancer Center New YorkNYUSA Department of Laboratory Medicine and Pathology University of WashingtonSeattleWAUSA Bioinfomatics CoreFacility Memorial Soan Kettering Cancer CenterNew YorkNYUSA Institute of Biomedicine of Seille(Bis) HURCSCUniversidad de SevillaSevilleSpain Computational Oncology Department of Epidemiology and BiostatisticsMemorial Sloan Kettering Cancer CenterNew YorkNYUSA Well Cornell Medical College New York NYUSA Present address:Swiss Institute for Experimental Cancer Research(ISREC) School of Life SciencesEPFLLausanneSwitzerland

Neuroendocrine(NE)transformation is a mechanism of resistance to targeted therapy in lung and prostate adenocarcinomas leading to poor *** to date,even if patients at high risk of transformation can be identified by the occurrence of Tumor Protein P53(TP53)and Retinoblastoma Transcriptional Corepressor 1(RB1)mutations in their tumors,no therapeutic strategies are available to prevent or delay histological *** of the cell cycle kinase Cell Division Cycle 7(CDC7)occurred in tumors during the initial steps of NE transformation,already after TP53/RB1 co-inactivation,leading to induced sensitivity to the CDC7 inhibitor ***7 inhibition suppressed NE transdifferentiation and extended response to targeted therapy in in vivo models of NE transformation by inducing the proteasome-mediated degradation of the MYC Proto-Oncogen(MYC),implicated in stemness and histological *** overexpression of a degradation-resistant MYC isoform reestablished the NE transformation phenotype observed on targeted therapy,even in the presence of ***7 inhibition also markedly extended response to standard cytotoxics(cisplatin,irinotecan)in lung and prostate small cell carcinoma *** results nominate CDC7 inhibition as a therapeutic strategy to constrain lineage plasticity,as well as to effectively treat NE tumors de novo or after *** simurosertib clinical efficacy trials are ongoing,this concept could be readily translated for patients at risk oftransformation.

关键词： tumors markedly transformation

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Effect of reinforcement content on the adhesive wear behavior of Cu10Sn5Ni/Si3N4 composites produced by stir casting

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International Journal of Minerals,Metallurgy and Materials 2017年第9期24卷 1052-1060页

作者： k.Sanesh S.Shiam Sunder N.radhika Department of Mechanical Engineering Amrita School of EngineeringCoimbatore 64112Amrita Vishwa VidyapeethamAmrita UniversityIndia

The main objective of this paper was to fabricate CuSnNi alloy and its composites reinforced with various contents of SiNparticles(5wt%, 10wt%, and 15wt%) and to investigate their dry sliding wear behavior using a pin-on-disk tribometer. Microstructural examinations of the specimens revealed a uniform dispersion of SiNparticles in the copper matrix. Wear experiments were performed for all combinations of parameters, such as load(10, 20, and 30 N), sliding distance(500, 1000, and 1500 m), and sliding velocity(1, 2, and 3 m/s), for the alloy and the composites. The results revealed that wear rate increased with increasing load and increasing sliding distance, whereas the wear rate decreased and then increased with increasing sliding velocity. The primary wear mechanism encountered at low loads was mild adhesive wear, whereas that at high loads was severe delamination wear. An oxide layer was formed at low velocities, whereas a combination of shear and plastic deformation occurred at high velocities. The mechanism at short sliding distances was ploughing action of SiNparticles, which act as protrusions; by contrast, at long sliding distances, direct metal–metal contact occurred. Among the investigated samples, the Cu/10wt% SiNcomposite exhibited the best wear resistance at a load of 10 N, a velocity of 2 m/s, and a sliding distance of 500 m.

关键词： copper matrix composites stir casting adhesive wear wear mechanisms

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Influence of carbide ceramic reinforcements in improving tribological properties of A333 graded hybrid composites

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Defence Technology（防务技术） 2022年第7期18卷 1107-1123页

作者： Manu Sam N.radhika Department of Mechanical Engineering Amrita School of EngineeringCoimbatore641112Amrita Vishwa VidyapeethamIndia

Aluminium hybrid functionally graded metal matrix composites(FGMMCs),meet growing demands for supreme tribo-mechanical performance in automotive and aviation *** research experimentally compares the influence of carbide ceramics(B_(4)C,SiC,TiC)as reinforcements,in improving reciprocating tribology performance and mechanical strength of A333 hybrid composites against *** cylindrical samples of A333/6 wt%B_(4)C/4 wt%TiC and A333/6 wt%B_(4)C/4 wt%SiC hybrid FGMMCs were developed using horizontal centrifugal *** analysis on both composites revealed increasing ceramic gradient distribution towards outer composite *** rich zone of A333/B_(4)C/SiC hybrid FGMMC showed maximum micro-hardness(198.9 HV)and tensile strength(267.9 MPa).Elemental mapping confirmed effective distribution of ceramics and detected elemental composition of both *** rich layer of A333/B_(4)C/SiC hybrid FGMMC exhibited improved wear resistance in comparison with all three layers of A333/B_(4)C/TiC hybrid FGMMC and ***-body abrasion and tribo-chemical wear were the predominant mechanisms revealed for both composites during worn surface analysis.

关键词： Composites Functional Wear Carbide ceramics

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CLAY CATALYZED SYNTHESIS OF BIO-DEGRADABLE POLY(GLYCOLIC ACID)

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Chinese Journal of Polymer Science 2008年第4期26卷 393-398页

作者： k.Durai Murugan S.radhika I.Baskaran R.Anbarasan Department of Chemistry S.N.CollegeMadurai-625022Tamil NaduIndia Advanced Nanotechnology Research Laboratory Department of Polymer TechnologyKamaraj College of Engineering and TechnologyVirudhunagar-626001Tamil NaduIndia

Glycolic acid was polymerized under vacuum in the presence and absence of nano sized *** added clay catalyzed the condensation polymerization which can be confirmed by recording FTIR spectroscopy and intrinsic viscosity (Ⅳ)*** relative intensity of C=O/CH is increased while increasing the amount of *** showed the appearance of multiple endotherms of poly(glycolic acid).TGA showed the percentage weight residue remain above 750℃for polymer-nano composite system was 21% and hence proved the fl...

关键词： Synthesis Poly(glycolic acid) Clay FTIR DSC TGA Intrinsic viscosity

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Modified Elliptic Curve Cryptography Multi-Signature Scheme to Enhance Security in Cryptocurrency

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Computer Systems Science & Engineering 2023年第4期45卷 641-658页

作者： G.Uganya radhika Baskar Department of Electronics and Communication Engineering Saveetha School of EngineeringSIMATSChennaiTamil NaduIndia

Internet of Things(IoT)is an emerging technology that moves the world in the direction of smart ***,IoT security is the complex problem due to its centralized architecture,and limited ***,blockchain technology has great attention due to its features of decentralized architecture,transparency,immutable records and cryptography hash functions when combining with *** hash algorithms are very important in blockchain technology for secure *** converts the variable size inputs to a fixed size hash output which is *** cryptography hash algorithms with digital signature have issues of single node accessibility and accessed up to 128 bytes of key size *** well as,if the attacker tries to hack the key,it cancels the *** paper presents the Modified Elliptic Curve Cryptography Multi Signature Scheme(MECC-MSS)for multiple node accessibility by finding nearest path for secure *** this work,the input key size can be extended up to 512 bytes to enhance the *** performance of the proposed algorithm is analyzed with other cryptography hash algorithms like Secure Hashing Algorithms(SHAs)such as SHA224,SHA256,SHA384,SHA512,SHA3-224,SHA3-256,SHA3-384,SHA3-512 and Message Digest5 by one-way analysis of variance test in terms of accuracy and time *** show that the MECC-MSS achieves 90.85%of accuracy and time complexity of 1.4 nano seconds with significance less than *** the statistical analysis,it is observed that the proposed algorithm is significantly better than other cryptography hash algorithms and also having less time complexity.

关键词： Internet of things blockchain technology secure hash algorithm accuracy time complexity

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Data Mining with Privacy Protection Using Precise Elliptical Curve Cryptography

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Intelligent Automation & Soft Computing 2023年第1期35卷 839-851页

作者： B.Murugeshwari D.Selvaraj k.Sudharson S.radhika Department of Computer Science and Engineering Velammal Engineering CollegeChennai600066India Department of Electronics and Communication Engineering Panimalar Engineering CollegeChennai600123India Department of Information Technology Velammal Insitutue of TechnologyChennai601204India Department of Computer Science and Engineering Saveetha School of EngineeringSaveetha Institute of Medical and Technical SciencesChennai600124India

Protecting the privacy of data in the multi-cloud is a crucial *** mining is a technique that protects the privacy of individual data while mining those *** most significant task entails obtaining data from numerous remote *** algorithms can obtain sensitive information once the data is in the data *** traditional algorithms/techniques promise to provide safe data transfer,storing,and retrieving over the cloud *** strategies are primarily concerned with protecting the privacy of user *** study aims to present data mining with privacy protection(DMPP)using precise elliptic curve cryptography(PECC),which builds upon that algebraic elliptic curve *** approach enables safe data exchange by utilizing a reliable data consolidation approach entirely reliant on rewritable data concealing ***,it outperforms data mining in terms of solid privacy procedures while maintaining the quality of the *** approximation error,computational cost,anonymizing time,and data loss are considered performance *** suggested approach is practical and applicable in real-world situations according to the experimentalfindings.

关键词： Data mining cryptography privacy preserving elliptic curve information security

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