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Prediction of Alzheimer’s Using Random Forest with Radiomic Features

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Computer Systems Science & Engineering 2023年第4期45卷 513-530页

作者： Anuj Singh raman.kumar Arvind kumar Tiwari KNIT Sultanpur Sultanpur228118India

Alzheimer’s disease is a non-reversible,non-curable,and progressive neurological disorder that induces the shrinkage and death of a specific neuronal population associated with memory formation and *** is a frequently occurring mental illness that occurs in about 60%–80%of cases of *** is usually observed between people in the age group of 60 years and *** upon the severity of symptoms the patients can be categorized in Cognitive Normal(CN),Mild Cognitive Impairment(MCI)and Alzheimer’s Disease(AD).Alzheimer’s disease is the last phase of the disease where the brain is severely damaged,and the patients are not able to live on their *** is an approach to extracting a huge number of features from medical images with the help of data characterization ***,105 number of radiomic features are extracted and used to predict the alzhimer’*** paper uses Support Vector Machine,K-Nearest Neighbour,Gaussian Naïve Bayes,eXtreme Gradient Boosting(XGBoost)and Random Forest to predict Alzheimer’s *** proposed random forest-based approach with the Radiomic features achieved an accuracy of 85%.This proposed approach also achieved 88%accuracy,88%recall,88%precision and 87%F1-score for AD ***,it achieved 72%accuracy,73%recall,72%precisionand 71%F1-score for AD *** and it achieved 69%accuracy,69%recall,68%precision and 69%F1-score for MCI *** comparative analysis shows that the proposed approach performs better than others approaches.

关键词： Alzheimer’s disease radiomic features cognitive normal support vector machine mild cognitive impairment extreme gradient boosting random forest

Convergence of Weak Galerkin Finite Element Method for Second Order Linear Wave Equation in Heterogeneous Media

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Numerical Mathematics(Theory,Methods and Applications) 2023年第2期16卷 323-347页

作者： Bhupen Deka Papri Roy Naresh kumar raman.kumar Department of Mathematics Indian Institute of Technology GuwahatiGuwahati 781039India

Weak Galerkin finite element method is introduced for solving wave equation with interface on weak Galerkin finite element space(Pk(K),P_(k−1)(∂K),[P_(k−1)(K)]^(2)).Optimal order a priori error estimates for both space-discrete scheme and implicit fully discrete scheme are derived in L1(L2)*** method uses totally discontinuous functions in approximation space and allows the usage of finite element partitions consisting of general polygonal *** element algorithm presented here can contribute to a variety of hyperbolic problems where physical domain consists of heterogeneous media.

关键词： Wave equation heterogeneous medium finite element method weak Galerkin method semidiscrete and fully discrete schemes optimal error estimates

Silica gel catalyzed α-bromination of ketones using N-bromosuccinimide: An easy and rapid method

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Chinese Chemical Letters 2014年第1期25卷 179-182页

作者： Bodireddy Mohan Reddy velpula ven.ata raman. kumar Nallagondu Chinna Gangi Reddy Siripragada Mahender Raob Department of Chemistry School of Physical SciencesYogi Vemana University Research & Development (API) Centre Panacea Biotech Ltd.B-1 Extn./A-27Mohan Co-operative Industrial Estate

An easy and rapid method for the α-bromination of ketones using N-bromosuccinimide （NBS） catalyzed by silica gel in methanol under reflux conditions was developed. The expected products were formed in excellent isolated yields within a short period of time （5-20 min）. Major advantages of the present procedure include use of inexpensive and readily available catalyst, exclusion of pre- and post-chemical treatment of catalyst and use of methanol as solvent instead of ethers and chlorinated solvents.

关键词： Heterogeneous catalysis α-Brominatio nN-bromosuccinimide (NBS)Silica gel Ketones

Solar photovoltaic fed dual input LED lighting system with constant illumination control

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Frontiers in Energy 2016年第4期10卷 473-478页

作者： Kinattingal SUNDARESWARAN Kevin Ark kumar Payyalore raman.venKATESWARAN Sankaran PALANI Department of Electrical and Electronics Engineering National Instituteof Technology Tiruchirappalli 620015 India Bharat Heavy Electricals Limited Tiruchirappalli 620014 India Sudharsan Engineering College Pudukkottai 622501 India

A dual input LED lighting scheme with constant illumination is proposed in this paper. The scheme employs a photovoltaic array as the first input and a battery as the second one. A microcontroller is programmed to operate a changeover switch as well as a DC-DC converter for uninterrupted and constant illumina- tion in work place. The scheme is suitable for conference halls, laboratories, clean rooms, marriage halls, theaters, etc. The complete modeling, design and experimentation of the proposed scheme are explained and the economic viability of the scheme is justified.

关键词： photovoltaic LED light dual input P&O algorithm

Perceived effectiveness of infection control practices in Laundry of a tertiary healthcare centre

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World Journal of Emergency Medicine 2019年第2期10卷 114-115页

作者： raman.Sharma Ashok kumar Vipin Koushal Department of Hospital Administration PGIMER

Hospital management in modern milieu has become patient oriented and good patient outcome is a result of effective and effi cient medical care along with provisions of hygienic food,clean linen,safe environment,congenial atmosphere and good interpersonal relationship.^[1]Laundry is one such important support service which ensures prevention as well as containment of hospital infections and is also a determining factor for maintenance of good image of a hospital[2].

关键词： Hospital management modern milieu oriented

Recent advances in assessment of soil erosion vulnerability in a watershed

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International Soil and Water Conservation Research 2021年第3期9卷 305-318页

作者： Shachi Pandey Parmanand kumar Miodrag Zlatic raman.Nautiyal Vijender Pal Panwar Forest Ecology and Climate Change Division Forest Research InstituteDehradunIndia Faculty of Forestry Belgrade UniversityBelgradeSerbia Indian Council of Forestry Research and Education India

Soil erosion is one of the most critical hazards adversely affecting both environment and *** of the annual soil erosion rate provides information on soil erosion risk zones indicating the areas with high,severe and low *** and prediction of soil erosion has a long history of more than seven *** becomes imperative to be familiar with the quantum of studies conducted and methods employed across the world to assess vulnerability of ecosystems to soil erosion to plan strategies for their *** are several methods based on various factors like land use,soil quality,topography *** to assess the susceptibility of a region to soil *** time the gap in understanding of such models and their use around the world has *** models for assessing soil erosion exist but there is a lack of knowledge on spatial distribution of the methods being *** papers related to assessment of soil erosion vulnerability published during the past three decades(1991—2019)were *** 160 studies were reviewed to understand advances in the methods used to assess soil erosion vulnerability worldwide,identification of the most popular methods and proportion of studies conducted in the fragile region of *** results show that 18 different methods have mainly been used to assess soil erosion risk in different *** methods include statistical,physical,process based and empirical *** use of few physical methods like ANSWERS and SHE has decreased with time while that of physical and process methods like RUSLE,SWAT,WEPP and PESERA has increased with *** review highlighted that various models being used worldwide are based on their suitability to the *** also brings to attention that few models like PESERA,EUROSEM and WEPP are mostly being used concentrated in a particular *** like PESERA and EPM are mostly used in European region and may be encouraged to estimate soil er

关键词： Soil erosion vulnerability RUSLE MCDM

Driving Style Recognition System Using Smartphone Sensors Based on Fuzzy Logic

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Computers, Materials & Continua 2021年第11期69卷 1967-1978页

作者： Nidhi Kalra raman.kumar Goyal Anshu Parashar Jaskirat Singh Gagan Singla Department of Computer Science and Engineering Thapar Institute of Engineering and TechnologyPatiala147001PunjabIndia Computer Science and Engineering University Institute of Engineering and TechnologyPanjab University160014ChandigarhIndia

Every 24 seconds,someone dies on the road due to road accidents and it is the 8th leading cause of death and the first among children aged 15–29 years.1.35 million people globally die every year due to road traffic *** additional 20–50 million suffer from non-fatal injuries,often resulting in longterm *** costs around 3%of Gross Domestic Product to most countries,and it is a considerable economic *** governments have taken various measures such as better road infrastructures and strict enforcement of motor-vehicle laws to reduce these ***,there is still no remarkable reduction in the number of *** ensure driver safety and achieve vision of zero accidents,there is a great need to monitor drivers’driving *** of the existing driving behavior monitoring solutions are based on expensive hardware *** most people are using smartphones in the modern era,a system based on mobile application is proposed,which can reduce the cost for developing intelligent transport systems(ITS)to a large *** this paper,we utilize the accelerometer sensor data and the global positioning system(GPS)sensor deployed in smartphones to recognize driving and speeding events.A driving style recognition system based on fuzzy logic is designed to classify different driving styles and control reckless driving by taking the longitudinal/lateral acceleration and speed as input ***,the proposed system uses fuzzy logic rather than taking the crisp values of the *** indicate that the proposed system can classify reckless driving based on fuzzy logic and,therefore,reduce the number of accidents.

关键词： Fuzzy logic accelerometer global positioning system driving style

Oxide ancillary ligand-based europium β-diketonate complexes and their enhanced luminosity

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Rare Metals 2021年第10期40卷 2873-2881页

作者： Devender Singh Shri Bhagwan Anuj Dalal Kapeesha Nehra raman.kumar Saini Kapoor Singh Anura Priyajith Simantilleke Sumit kumar Ishwar Singh Department of Chemistry Maharshi Dayanand UniversityRohtak 124001India Centre de Fisica Universidade of MinhoBraga 4710057Portugal Department of Chemistry DCR University of Science and TechnologyMurthal 131039India

Ternary materials of europium complex with2,2,6,6-tetramethyl-3,5-heptanedione(tmhd) ligand and aqua ligand as ancillary ligands have been prepared and characterized for various optoelectronic *** of hydrated complex [Eu(tmhd)_(3)(H_(2)O)_(2)] proceeded with triphenylphosphine oxide(TPPO) and pyridine-N-oxide(PNO) ancillary ligands were studied to develop novel complexes. The prepared complexes show good thermal stability. A comparative investigation of preparedmaterials[Eu(tmhd)_(3)(H_(2)O)_(2)],[Eu(tmhd)_(3)(TPPO)_(2)] and [Eu(tmhd)_(3)(PNO)_(2)] was conducted for their luminescent behaviors in order to obtain the role of ancillary ligand in the enhancement of illumination amount generated from europium(Eu^(3+)) ion. Color coordinates of prepared ternary complexes such as[Eu(tmhd)_(3)(H_(2)O)_(2)]with(x = 0.54,y = 0.32),[Eu(tmhd)_(3)(TPPO)_(2)] with(x = 0.56, y = 0.32) and[Eu(tmhd)_(3)(PNO)_(2)] with(x = 0.57, y = 0.33) indicated that these materials exhibited bright red emission in visible region spectrum. The complexes show a proficient energy transport pathway from the ligands to the innermost Eu^(3+)by means of an ancillary ligand-sensitized luminescence process. Interaction between the metal and ligand results in a distinguished effect on quantum efficiency(η) as well as on Judd–Ofelt intensity factor(Ω_(2)) of the prepared materials.

关键词： Ternary Eu^(3+)complexes Red emissive materials Photoluminescence Quantum efficiency Judd-Ofelt intensity Optoelectronic devices

1-Sulfopyridinium chloride:Green and expeditious ionic liquid for the one-pot synthesis of fused 3,4-dihydropyrimidin-2(1H)-ones and thiones under solvent-free conditions

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Chinese Chemical Letters 2015年第3期26卷 309-312页

作者： Ravibabu velpula Janardhan Banothu Rajitha Gali Rajitha Deshineni Rajitha Bavantula Department of Chemistry National Institute of Technology Department of Chemistry Osmania University

1-Sulfopyridinium chloride portrayed as an efficient and recyclable ionic liquid for the synthesis of fused3,4-dihydropyrimidin-2（1H）-ones and thiones via a modified Biginelli reaction involving one-pot three component condensation of 6-methoxy-1-tetralone,arylaldehydes and urea/thiourea under solventfree *** pure products are formed within 10–20 min in excellent yields.

关键词： fused ionic benzaldehyde condensation thiourea methoxy aldehydes aromatic Ionic hydroxyphenyl