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Early Detection of Colletotrichum Kahawae Disease in Coffee Cherry Based on Computer Vision Techniques

Computer Modeling in Engineering & sciences 2024年第4期139卷 759-782页

作者： Raveena selvanarayanan surendran Rajendran Youseef Alotaibi Department of Computer science and Engineering Saveetha School of EngineeringSaveetha Institute of Medical and Technical ScienceChennai602105India Department of Computer science College of Computer and Information SystemsUmm Al-Qura UniversityMakkah21955Saudi Arabia

Colletotrichum kahawae(Coffee Berry Disease)spreads through spores that can be carried by wind,rain,and insects affecting coffee plantations,and causes 80%yield losses and poor-quality coffee *** deadly disease is hard to control because wind,rain,and insects carry *** researchers utilized a deep learning system to identify CBD in coffee cherries at three growth stages and classify photographs of infected and uninfected cherries with 93%accuracy using a random forest *** the dataset is too small and noisy,the algorithm may not learn data patterns and generate accurate *** overcome the existing challenge,early detection of Colletotrichum Kahawae disease in coffee cherries requires automated processes,prompt recognition,and accurate *** proposed methodology selects CBD image datasets through four different stages for training and *** to train a model on datasets of coffee berries,with each image labeled as healthy or *** themodel is trained,sHAP algorithmto figure out which features were essential formaking predictions with the proposed *** of these characteristics were the cherry’s colour,whether it had spots or other damage,and how big the Lesions *** inception is important for classification to virtualize the relationship between the colour of the berry is correlated with the presence of *** evaluate themodel’s performance andmitigate excess fitting,a 10-fold cross-validation approach is *** involves partitioning the dataset into ten subsets,training the model on each subset,and evaluating its *** comparison to other contemporary methodologies,the model put forth achieved an accuracy of 98.56%.

关键词： Computer vision coffee berry disease colletotrichum kahawae XG boost shapley additive explanations

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Biomimetic Fe_(7)s_(8)/Carbon electrocatalyst from[FeFe]-Hydrogenase for improving pH-Universal electrocatalytic hydrogen production special Collection:Aggregation-Induced Processes and Functions

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Aggregate 2024年第1期5卷 451-459页

作者： Dohun Kim subramani surendran sejin Im Jaehyoung Lim Kyoungsuk Jin Ki Tae Nam Uk sim Department of Energy science&Engineering Daegu Gyeongbuk Institute of Science&Technology(DGIST)DaeguRepublic of Korea Hydrogen Energy Technology Laboratory Korea Institute of Energy Technology(KENTECH)NajuRepublic of Korea Department of Chemistry Korea UniversitySeoulRepublic of Korea Department of Materials science and Engineering Seoul National UniversitySeoulRepublic of Korea

Efficient and cost-effective electrocatalysts that can operate across a wide range of pH conditions are essential for green hydrogen *** by biological systems,Fe_(7)s_(8)nanoparticles incorporated on polydopamine matrix electrocatalyst were synthesized by co-precipitation and annealing *** resulting Fe_(7)s_(8)/C electrocatalyst possesses a three-dimensional structure and exhibits enhanced electrocatalytic performance for hydrogen production across various pH ***,the Fe_(7)s_(8)/C electrocatalyst demonstrates exceptional activity,achieving low overpotentials of 90.6,45.9,and 107.4 mV in acidic,neutral,and alkaline environments,*** impedance spectroscopy reveals that Fe_(7)s_(8)/C exhibits the lowest charge transfer resistance under neutral conditions,indicating an improved proton-coupled electron transfer ***-wave electron paramagnetic resonance results confirm a change in the valence state of Fe from 3+to 1+during the hydrogen evolution reaction(HER).These findings closely resemble the behavior of natural[FeFe]-hydrogenase,known for its superior hydrogen production in neutral *** remarkable performance of our Fe_(7)s_(8)/C electrocatalyst opens up new possibilities for utilizing bioinspired materials as catalysts for the HER.

关键词： biomimetic electrocatalyst hydrogen production renewable energy

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Application Of Fuzzy-Logic In ship Manoeuvring In Confined Waters

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sustainable Marine structures 2019年第1期1卷 11-20页

作者： s.surendran s.K Lee Department of Ocean Engg. Indian Institute of Technology IIT MadrasChennai 600036India Department of Naval Architecture and Ocean engineering Pusan National UniversityS Korea

A ship manoeuvring problem is solved using an algorithm built on fuzzy *** manoeuvring model for a design ship is coded in C++and the results are presented here.A bulk carrier is assumed as design ship for a newly setting up harbor along the east coast of *** harbor mouth is 25 km away from the deep water *** approach channel is straight along the 22 km *** restricted and shallow waters are considered and their influences on hydrodynamic derivatives are *** sample problems are ***,ship heading,rudder angle,velocities and accelerations,of the moving vessel,are calculated and presented for *** developed code is robust in the sense that any designer or user can easily interact with various input parameters to verify the outputs and their suitability for the design ship meant for a particular water front *** results are validated using another algorithm built on PID which is discussed in brief.

关键词： Manoeuvrability Rudder Harbour Control

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Corrosion Control of Coated structural Components in Marine Environment

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sustainable Marine structures 2019年第1期1卷 21-34页

作者： G.L.Manjunath s.surendran Department of Ocean Engineering Indian Institute of Technology MadrasChennaiIndia

Tropical waters are with more salinity and harbor millions of micro *** environmental condition challenges the strength and reliability of marine *** behaviour of structural materials due to pitting and uniform corrosion is studied,and a method based on coating is suggested to improve the life cycle ensuring reliability in its *** structural materials like high strength steel and AA6063 were selected for the study and metallic coating performed for evaluation of corrosion *** are investigated in chloride concentration of 3.5%NaCl by weight loss measurements and potentiodynamic *** coating was done by electroplating and PVD(Physical Vapour Deposition)method for high strength steel,where as aluminum samples were coated by an electroplating *** high strength steel samples were mono coated by Ni and Cr using the electroplating method,and composite coating was done with Al-N(Aluminium nitride)and Ti-Al-N(Titanium Aluminium Nitride)by PVD *** electron microscopy(sEM)was used for evaluation of fracture toughness of coating around the pits *** investigation showed that the methods and thickness of coating influenced corrosion resistances of the substrate *** coated samples by PVD showed excellent corrosion resistance properties compared to electroplated samples after the *** element analysis was performed by FRANC 2D/L(Fracture Analysis Code)showed a decrease in stress intensity values for composite coated samples of PVD compared to mono coated electroplated *** in the duty cycle of the structure was observed in the simulation has a result of a decrease in stress intensity values for PVD coated samples.

关键词： Aluminum Metal coatings steel sEM Weight loss Pitting corrosion

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Novel Double Modular Redundancy Based Fault-Tolerant FIR Filter for Image Denoising

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Computer systems science & Engineering 2023年第7期46卷 181-193页

作者： V.s.Vaisakhi D.surendran Department of Electronics and Communication Engineering Nehru Institute of Engineering and TechnologyCoimbatore641105India Department of Computer science and Engineering KPR Institute of Engineering and TechnologyCoimbatore641105India

In signal processing and communication systems,digital filters are widely *** some circumstances,the reliability of those systems is crucial,necessitating the use of fault tolerant filter *** strategies have been presented throughout the years to achieve fault tolerance by utilising the structure and properties of the *** technology advances,more complicated systems with several filters become *** of the filters in those complicated systems frequently function in parallel,for example,by applying the same filter to various input ***,a simple strategy for achieving fault tolerance that takes advantage of the availability of parallel filters was *** fault-tolerant ways that take advantage of the filter’s structure and properties have been proposed throughout the *** primary idea is to use structured authentication scan chains to study the internal states of finite impulse response(FIR)components in order to detect and recover the exact state of faulty modules through the state of non-faulty ***,a simple solution of Double modular redundancy(DMR)based fault tolerance was developed that takes advantage of the availability of parallel filters for image *** approach is expanded in this short to display how parallel filters can be protected using error correction codes(ECCs)in which each filter is comparable to a bit in a standard ECC.“Advanced error recovery for parallel systems,”the suggested technique,can find and eliminate hidden defects in FIR modules,and also restore the system from multiple failures impacting two FIR *** the implementation,Xilinx IsE 14.7 was found to have given significant error reduction capability in the fault calculations and reduction in the area which reduces the cost of *** were introduced in all the outputs of the functional filters and found that the fault in every output is corrected.

关键词： Fault tolerance filters efficiency redundancy image denoising error correction codes double modular redundancy

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Encryption with User Authentication Model for Internet of Medical Things Environment

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Intelligent Automation & soft Computing 2023年第1期35卷 507-520页

作者： K.s.Riya R.surendran Carlos Andrés Tavera Romero M.sadish sendil Department of Information Technology Vel Tech Multi Tech Dr.Rangarajan Dr.Sakunthala Engineering CollegeChennai600062India Center for Artificial Intelligence and Research(CAIR) Chennai Institute of TechnologyChennai600069India COMBA R&D Laboratory Faculty of EngineeringUniversidad Santiago de CaliCali76001Colombia Department of Emerging Technologies Guru Nanak Institute of TechnologyIbrahipatnam501506TelanganaIndia

Internet of Medical Things(IoMT)enabled e-healthcare has the potential to greately improve conventional healthcare services ***,security and privacy become major issues of IoMT because of the restricted processing abilities,storage,and energy constraints of the ***,it leads to infeasibility of developing traditional cryptographic solutions to the IoMT *** order to ensure security on sensitive medical data,effective encryption and authentication techniques need to be designed to assure security of the patients and healthcare service *** this view,this study designs an effective metaheuristic optimization based encryption with user authentication(EMOE-UA)technique for IoMT *** work proposes an EMOE-UA technique aims to accomplish mutual authentication for addressing the security issues and reducing the computational ***,the EMOE-UA technique employs optimal multikey homomorphic encryption(OMKHE)technique to encrypt the IoMT ***,the improved social spider optimization algorithm(IssOA)was employed for the optimal multikey generation of the MKHE *** experimental result analysis of the EMOE-UA technique takes place using benchmark data and the results are examined under various *** simulation results reported the considerably better performance of the EMOE-UA technique over the existing techniques.

关键词： User authentication security privacy internet of medical things homomorphic encryption optimal key generation

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An ACO Look-Ahead Approach to QOs Enabled FaultTolerant Routing in MANETs

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China Communications 2015年第8期12卷 93-110页

作者： surendran. s Prakash. s Professor Department of Information TechnologyTagore Engineering College Professor Department of Electronics and Communication EngineeringJerusalem College of Engineering

MANET routing is critical and routing decision should be made sooner before the node leaves the *** decisions always compensate network *** addition,most MANET routing protocols assume a friendly and cooperative environment,and hence are vulnerable to various *** and Reputation would serve as a major solution to these *** the network characteristics and choosing right routing decisions at right times would be a significant *** this work,we have done an extensive survey of fault tolerant protocols and ant colony algorithms applied to routing in *** propose a Qos constrained fault tolerant ant lookahead routing algorithm which attempts to identify valid route and look-ahead route pairs which might help in choosing the alternate path in case of valid route *** results prove that the proposed algorithm takes better routing decisions with 20-30 percent improvement compared with existing ant colony algorithms.

关键词：容错路由无线自组网蚁群算法路由故障 Qos MANET 网络性能路由协议

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Vaccine development for leptospirosis:A systematic review

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Asian Pacific Journal of Tropical Medicine 2023年第12期16卷 533-545页

作者： Yocyny surendran Mahalingam Nandikha syafinaz Amin-Nordin sandeep Kumar Dhanda Mohamad Ridhuan Mohd Ali Narcisse Ms Joseph Department of Medical Microbiology Faculty of Medicine and Health SciencesUniversiti Putra Malaysia43400Malaysia Department of Biomedical science Faculty of MedicineQuest International University30250Malaysia Department of Oncology St Jude Children’s Research Hospital Memphis38105USA Institute for Medical Research Ministry of HealthMalaysia

Objective:To assess the efficacy of various types of vaccines developed for ***:A comprehensive search was conducted in three databases:PubMed,scopus,and Cochrane *** authors(Ys and MN)selected the articles based on manual *** study eligibility criteria are all Leptospira species regardless of any cluster(pathogenic,intermediate and non-pathogenic).This study recorded articles with positive and negative results and showed a comparison among various membrane proteins as vaccine *** studies on the effectiveness of outer membrane protein as vaccine candidates were also *** articles obtained in the databases were imported into the WPs spreadsheet,and duplicate documents were removed ***:A total of 24 studies were included in the review,which evaluated various types of leptospirosis *** vaccines were developed and tested;however,the heterogeneity of Leptospira species pose a *** an effective approach,an epitope based vaccine shows quite a promising ***,sufficient validation,testing and clinical trials are ***:Developing an effective vaccine for leptospirosis remains a global health *** significant progress has been made in recent years,there is a need for further research to optimize vaccine development and to ensure that vaccines are accessible and effective for high-risk populations.

关键词： Leptospira Vaccine candidate Outer membrane protein

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subjective Global Assessment as a Pre-Operative Nutrition status screening Tool for Head and Neck Cancer Patients of a Tertiary Health Care setting

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Journal of Cancer Therapy 2022年第8期13卷 539-548页

作者： snany surendran Uma V. sankar santhoshkumar Nochikkattil Reena Cheekapravan Narayanankutty Warrier sajith Babu Department of Nutrition Oncology MVR Cancer Centre & Research Institute Kozhikkode India Department of Clinical Research MVR Cancer Centre & Research Institute Kozhikkode India Department of Head and Neck surgical Oncology MVR Cancer Centre & Research Institute Kozhikkode India Department of Clinical Nutrition & Dietetics Malabar Cancer Centre Kannur India Department of Medical Oncology MVR Cancer Centre & Research Institute Kozhikkode India Department of Head and Neck surgical Oncology Malabar Cancer Centre Kannur India

Introduction: In India, 57% of patients with head and neck cancers are documented with nutritional compromise. Active nutritional support has been shown to improve outcomes and reduce the cost of treatment in severely malnourished patients. The assessment of nutritional status should be a priority when initiating medical nutrition therapy. We evaluated the agreement between subjective and Objective evaluation of pre-operative nutrition status of head and neck cancer patients in a tertiary cancer centre. Methods: Two hundred and thirty seven head and neck cancer patients who underwent surgery were eligible. The patients included both males (147) and females (90) with age varying between 23 - 88 years. All patients were screened for pre-operative nutrition status objectively as well as subjectively. The association of pre-operative sGA scores (A, B and C) subjectively, and PNs score (0, 1, 2) objectively were tested for statistical significance. Results: The cancer sites included tongue in 82, buccal mucosa in 30, thyroid in 28, alveolus in 18, glottis in 10, RMT in 10, nasal cavity in 9, FOM in 8. The pre-operative nutrition status based on subjective scores are A in 156 (65.8%), B in 75 (32%) and C in 6 (2.5%). The objective parameters obtained on the basis of BMI, % weight loss, PNI and s. albumin values are PNs 0 in 161 (67.9%), PNs 1 in 71 (30%) and PNs 2 in 5 (2.1%) patients. As the kappa coefficient p-0.56, there is moderate agreement between the pre-operative nutrition status subjectively as well as objectively. Conclusion: subjective global assessment is a simple and inexpensive way to screen the pre-operative nutrition status when compared to the other objective assessment tool. sGA has moderate agreement with expensive and complicated objective assessment tools. so it can be a reliable tool for assessing the pre-operative nutrition status.

关键词： subjective Global Assessment Nutrition Assessment Head and Neck Cancer

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向光素LOV1-C57s固态Photo-CIDNP效应的磁场依赖性

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化学学报 2013年第2期71卷 169-172页

作者：王孝杰 smitha surendran Thamarath 誉宫国防科技大学理学院化学与生物学系长沙410073 莱顿大学化学院莱比锡大学分析化学系

利用13C魔角旋转NMR波谱对向光素LOV1-C57s进行固态Photo-CIDNP效应的磁场依赖性研究.在4.7 T(相当于200 MHz1H频率)磁场中,黑暗条件下只检测到较宽的蛋白质信号;但在光照条件下,观测到强烈的固态Photo-CIDNP效应.与在2.3 T(相当于100 M... 详细信息

利用13C魔角旋转NMR波谱对向光素LOV1-C57s进行固态Photo-CIDNP效应的磁场依赖性研究.在4.7 T(相当于200 MHz1H频率)磁场中,黑暗条件下只检测到较宽的蛋白质信号;但在光照条件下,观测到强烈的固态Photo-CIDNP效应.与在2.3 T(相当于100 MHz1H频率)磁场中得到的全部为发射谱(负)信号的固态Photo-CIDNP图谱(首次在非光合反应系统中观测到的Photo-CIDNP效应)不同,在4.7 T磁场中测得的光诱导13C NMR谱呈现吸收/发射混合峰型,这种峰型与文献报道的LOV2的液态Photo-CIDNP波谱的峰型相似.对比两种磁场中所得谱图发现,向光素LOV1-C57s的固态Photo-CIDNP效应具有强烈的磁场依赖性,而且不同的核对磁场的依赖程度差别很大,这种巨大的差别反映出在被测试的自由基对中的超精细相互作用影响因素发生了很大的改变.

关键词：光化学诱导动态核极化魔角旋转核磁共振向光素 LOV结构域

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