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Automated Deep Learning Based Cardiovascular Disease Diagnosis Using ECG signals

Computer systems science & Engineering 2022年第7期42卷 183-199页

作者： s.Karthik M.santhosh M.s.Kavitha A.Christopher Paul Department of Computer science&Engineering SNS College of TechnologyCoimbatore641035India Department of Information Technology Karpagam Institute of TechnologyCoimbatore641105India

Automated biomedical signal processing becomes an essential process to determine the indicators of diseased *** the same time,latest develop-ments of artiﬁcial intelligence(AI)techniques have the ability to manage and ana-lyzing massive amounts of biomedical datasets results in clinical decisions and real time *** can be employed for medical imaging;however,the 1D biomedical signal recognition process is still needing to be ***(ECG)is one of the widely used 1-dimensional biomedical sig-nals,which is used to diagnose cardiovascular *** assisted diag-nostic modelsﬁnd it difﬁcult to automatically classify the 1D ECG signals owing to time-varying dynamics and diverse proﬁles of ECG *** resolve these issues,this study designs automated deep learning based 1D biomedical ECG sig-nal recognition for cardiovascular disease diagnosis(DLECG-CVD)*** DLECG-CVD model involves different stages of operations such as pre-proces-sing,feature extraction,hyperparameter tuning,and classiﬁ*** the initial stage,data pre-processing takes place to convert the ECG report to valuable data and transform it into a compatible format for further *** addition,deep belief network(DBN)model is applied to derive a set of feature ***,improved swallow swarm optimization(IssO)algorithm is used for the hyper-parameter tuning of the DBN ***,extreme gradient boosting(XGBoost)classiﬁer is employed to allocate proper class labels to the test ECG *** order to verify the improved diagnostic performance of the DLECG-CVD model,a set of simulations is carried out on the benchmark PTB-XL dataset.A detailed comparative study highlighted the betterment of the DLECG-CVD model interms of accuracy,sensitivity,speciﬁcity,kappa,Mathew correlation coefﬁcient,and Hamming loss.

关键词： Biomedical signals 1-dimensional signal electrocardiogram artiﬁcial intelligence deep learning cardiovascular disease decision making

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Analytical approximate solution for nonlinear space-time fractional Klein Gordon equation

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Chinese Physics B 2013年第1期22卷 33-38页

作者： Khaled A. Gepreel Mohamed s. Mohameda Mathematics Department Faculty of Science Zagazig University Zagazig Egypt Mathematics Department Faculty of Science Taif University Taif Saudi Arabi Mathematics Department Faculty of Science Al-Azhar University Nasr City 11884 Cairo Egypt

The fractional derivatives in the sense of Caputo and the homotopy analysis method are used to construct an approximate solution for the nonlinear space-time fractional derivatives Klein-Gordon equation. The numerical results show that the approaches are easy to implement and accurate when applied to the nonlinear space-time fractional derivatives Klein- Gordon equation. This method introduces a promising tool for solving many space-time fractional partial differential equations. This method is efficient and powerful in solving wide classes of nonlinear evolution fractional order equations.

关键词： homotopy analysis method nonlinear space-time fractional Klein-Gordon equation Caputo derivative

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FrAME MULTIrEsOLUTION ANALYsIs AND INFINITE TrEEs IN BANACH sPACEs ON LOCALLY COMPACT ABELIAN GrOUPs

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Analysis in Theory and Applications 2004年第3期20卷 231-241页

作者： s.s.Panday r.D.University Indiae extend the concept of frame multiresolution analysis to a locally compact abelian group and use it to define certain weighted Banach spaces and the spaces of their antifunctionals. We define analysis and synthesis operators on these spaces and establish the continuity of their composition. Also we prove a general result to characterize infinite trees in the above Banach spaces of antifunctionals. This paper paves the way for the study of corresponding problems associated with some other types of Banach spaces on locally compact abelian groups including modulation spaces.

We extend the concept of frame multiresolution analysis to a locally compact abelian group and use it to define certain weighted Banach spaces and the spaces of their antifunctionals. We define analysis and synthesis operators on these spaces and establish the continuity of their composition. Also, we prove a general result to characterize infinite trees in the above Banach spaces of antifunctionals. This paper paves the way for the study of corresponding problems associated with some other types of Banach spaces on locally compact abelian groups including modulation spaces.

关键词： frame multiresolution analysis infinite trees in Banach spaces

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Prediction of the residual strength of clay using functional networks

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Geoscience Frontiers 2016年第1期7卷 67-74页

作者： s.Z.Khan shakti suman M.Pavani s.K.Das Civil Engineering Department BIETBPUT Civil Engineering Department National Institute of Technology Rourkela

Landslides are common natural hazards occurring in most parts of the world and have considerable adverse economic effects. residual shear strength of clay is one of the most important factors in the determination of stability of slopes or landslides. This effect is more pronounced in sensitive clays which show large changes in shear strength from peak to residual states. This study analyses the prediction of the residual strength of clay based on a new prediction model, functional networks（FN） using data available in the literature. The performance of FN was compared with support vector machine（sVM） and artificial neural network（ANN） based on statistical parameters like correlation coefficient（r）, Nash–sutcliff coefficient of efficiency（E）, absolute average error（AAE）, maximum average error（MAE） and root mean square error（rMsE）. Based on r and E parameters, FN is found to be a better prediction tool than ANN for the given data. However, the r and E values for FN are less than sVM. A prediction equation is presented that can be used by practicing geotechnical engineers. A sensitivity analysis is carried out to ascertain the importance of various inputs in the prediction of the output.

关键词： Landslides residual strength Index properties Prediction model Functional networks

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An Effective Non-Commutative Encryption Approach with Optimized Genetic Algorithm for Ensuring Data Protection in Cloud Computing

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Computer Modeling in Engineering & sciences 2020年第11期125卷 671-697页

作者： s.Jerald Nirmal Kumar s.ravimaran M.M.Gowthul Alam Anna University Chennai600025India M.A.M College of Engineering Trichy621105India sethu Institute of Technology Virudhunagar626115India

Nowadays,succeeding safe communication and protection-sensitive data from unauthorized access above public networks are the main worries in cloud ***,to secure both data and keys ensuring secured data storage and access,our proposed work designs a Novel Quantum Key Distribution(QKD)relying upon a non-commutative encryption *** makes use of a Novel Quantum Key Distribution approach,which guarantees high level secured data *** with this,a shared secret is generated using Diffie Hellman(DH)to certify secured key generation at reduced time ***,a non-commutative approach is used,which effectively allows the users to store and access the encrypted data into the cloud ***,to prevent data loss or corruption caused by the insiders in the cloud,Optimized Genetic Algorithm(OGA)is utilized,which effectively recovers the data and retrieve it if the missed data without *** is then followed with the decryption process as if requested by the *** our proposed framework ensures authentication and paves way for secure data access,with enhanced performance and reduced complexities experienced with the prior works.

关键词： Cloud computing quantum key distribution Diffie Hellman non-commutative approach genetic algorithm particle swarm optimization

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Electrical properties of bulk and nano Li_(2)TiO_(3) ceramics:A comparative study

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Journal of Advanced Ceramics 2014年第2期3卷 89-97页

作者： Umasankar DAsH subhanarayan sAHOO Paritosh CHAUDHUrI s.K.s.PArAsHAr Kajal PArAsHAr school of Applied sciences KIIT UniversityBhubaneswar-751024India Department of Electrical and Electronics Engineering Trident Academy of TechnologyBhubaneswar-751024India Institute for Plasma research BhatGandhinagar-382428India

Nanocrystalline and bulk Li_(2)TiO_(3) having monoclinic structure were prepared by mechanical alloying as well as conventional ceramic *** impedance analysis in the frequency range of 100 Hz-1 MHz over a wide range of temperature(50-500℃)indicates the presence of grain boundary effect along with the bulk *** frequency-dependent conductivity plots exhibit power law dependence,suggesting three types of conduction in the material:low-frequency(100 Hz-1 kHz)conductivity showing long-range translational motion of electrons(frequency independent),mid-frequency(1-10 kHz)conductivity showing short-range hopping of charge carriers and high-frequency(10 kHz-1 MHz)conductivity showing conduction due to localized orientation of hopping *** electrical conductivity measurement of nanocrystalline and bulk Li_(2)TiO_(3) with temperature shows the negative temperature coefficient of resistance(NTCr)*** activation energy(0.77 eV for nano sample and 0.88 eV for bulk sample)study shows the conduction mechanism in both *** low activation energies of the samples suggest the presence of singly ionized oxygen vacancies in the conduction process.

关键词： nanocrystalline complex impedance spectroscopy(CIs) AC conductivity X-ray diffraction(XrD)

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Impaired eye tracking is associated with symptom severity but not dynamic postural control in adolescents following concussion

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Journal of sport and Health science 2021年第2期10卷 138-144页

作者： Jessie r.Oldham William P.Meehan III David r.Howell The Micheli Center for sports Injury Prevention WalthamMA 02453USA Division of sports Medicine Department of OrthopedicsBoston Children’s HospitalBostonMA 02115USA Department of Pediatrics and Orthopedics Harvard Medical SchoolBostonMA 02115USA sports Medicine Center Children’s Hospital ColoradoAuroraCO 80045USA Department of Orthopedics University of Colorado School of MedicineAuroraCO 80045USA

Purpose:The purpose of the study was to(1)examine the relationship between self-reported symptoms and concussion-related eye tracking impairments,and(2)compare gait performance between(a)adolescents with a concussion who have normal eye tracking,(b)adolescents with a concussion who have abnormal eye tracking,and(c)healthy ***:A total of 30 concussed participants(age:14.4±2.2 years,mean±sD,50%female)and 30 controls(age:14.2±2.2 years,47%female)completed eye tracking and gait *** BOX score is a metric of pupillary disconjugacy,with scoresssified as normal and≥10 *** were collected using the Post-Concussion symptom scale(PCss),and gait speed was measured with triaxial inertial measurement *** conducted a linear regression to examine the relationship between PCss and BOX scores and a two-way mixed effects analysis of variance to examine the effect of group(abnormal BOX,normal BOX,and healthy control)on single-and dual-task gait ***:There was a significant association between total PCss score and BOX score in the concussion group(β=0.16,p=0.004,95%confidence interval(95%CI):0.06‒0.27),but not in the control group(β=0.21,p=0.08,95%CI:0.03 to 0.45).There were no significant associations between PCss symptom profiles and BOX scores in the concussion or control *** were also no significant differences in singletask(Abnormal:1.00±0.14 m/s;Normal:1.11§0.21 m/s;Healthy:1.14±0.18 m/s;p=0.08)or dual-task(Abnormal:0.77±0.15 m/s;Normal:0.84±0.21 m/s;Healthy:0.90±0.18 m/s;p=0.16)gait ***:The concussed group with impaired eye tracking reported higher total symptom severity,as well as worse symptom severity across the 5 PCss symptom domain ***,eye tracking deficits did not appear to be driven by any particular symptom *** not statistically significant,the slower gait speeds in those with abnormal BOX scores may still be clinically relevant since gait-related impairments may persis

关键词： Gait Mild traumatic brain injury Vision

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CHALLENGEs AND PrOBLEMs: CHINA's UrBAN GOVErNANCE

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Chinese Geographical science 2002年第2期12卷 152-156页

作者： WANG Hong, GU Chao lin(Department of Urban and resources sciences, Nanjing University, Nanjing 210093, P.r.China) Department of Urban and resources sciences Nanjing University Nanjing 210093 P. R. China

China′s urban reforms have brought social progress and development, but a comprehensive national system of social welfare (for example, unemployment insurance, pensions, medical care and public housing) for new migrants from rural areas is lacking. One of the most remarkable changes in Chinese cities in the last decade was a change in social "equality", with the rise of new poverty both in individual communities and some social groups in urban society. However, there is little social assistance and public infrastructure for the migrants. Governments or communities or individual should pay attention to the control of new urban poverty and new slums. This paper consider that it is necessary to launch a successful policy, which include mainly: 1) accommodating urban growth through low cost investment projects; 2) urban economy depends heavily on successful macroeconomic policy; 3) to broaden the three channels linking adjustment to the incidence of urban poverty; 4) to restructure urban economic based on the high or new technology; 5) to coordinate relationship between urban economic growth and environment management for sustainable development of Beijing′s metropolitan fringe.

关键词： urban challenges and problems urban governance urban policies

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Electron correlation in fast ion-impact single ionization of helium atoms

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Chinese Physics B 2015年第1期24卷 240-246页

作者： E.Ghanbari-Adivi s.Eskandari Department of Physics and Isfahan Quantum Optics Group (IQOG) Faculty of Science University of Isfahan Isfahan 81746-73441 Iran

A four-body distorted-wave approximation is applied for theoretical analysis of the fully differential cross sections（FDCs） for proton-impact single ionization of helium atoms in their ground states. The nine-dimensional integrals for the partial amplitudes are analytically reduced to closed-form expressions or some one-dimensional integrals which can be easily calculated numerically. Calculations are performed in the scattering and perpendicular planes. The influence of the target static electron correlations on the process is investigated using a number of different bound-state wave functions for the ground state of the helium targets. An illustrative computation is performed for 75-ke V proton–helium collisions and the obtained results are compared with experimental data and other theoretical predictions. Although for small momentum transfers, the comparison shows a reasonable agreement with experiments in the scattering and perpendicular planes, some significant discrepancies are still present at large momentum transfers in these planes. However, our results are compatible and for some cases, better than those of the other sophisticated calculations.

关键词： single ionization four-body collision distorted-wave approximation electron correlation

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A discrete-event model to simulate the effect of truck bunching due to payload variance on cycle time, hauled mine materials and fuel consumption

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International Journal of Mining science and Technology 2016年第5期26卷 745-752页

作者： A.soofastaei s.M.Aminossadati M.s.Kizil P.Knights school of Mechanical and Mining Engineering The University of Queensland

Data collected from truck payload management systems at various surface mines shows that the payload variance is significant and must be considered in analysing the mine productivity,energy consumption,greenhouse gas emissions and associated *** variance causes significant differences in gross vehicle *** loaded trucks travel slower up ramps than lightly loaded *** trucks are slowed by the presence of slower trucks,resulting in‘bunching’,production losses and increasing fuel *** paper simulates the truck bunching phenomena in large surface mines to improve truck and shovel systems’efficiency and minimise fuel *** study concentrated on completing a practical simulation model based on a discrete event method which is most commonly used in this field of research in other *** simulation model has been validated by a dataset collected from a large surface mine in Arizona state,*** results have shown that there is a good agreement between the actual and estimated values of investigated parameters.

关键词： Discrete-event model simulation Truck bunching Payload variance Cycle time Fuel consumption

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