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Plasticized Polymer Electrolyte Membranes Based on PEO/PVdF-HFP for Use as an Effective Electrolyte in Lithium-ion Batteries

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Chinese Journal of Polymer Science 2017年第3期35卷 407-421页

作者： pradeepa prabakaran ramesh prabhu manimuthu sowmya gurusamy edwinraj sebasthiyan school of physics alagappa universityKaraikudi-630 004Tamil NaduIndia

Plasticized polymer electrolytes were prepared using poly（ethylene oxide）(PEO)/poly（vinylidene fluoridehexafluoro propylene）(PVd F-HFP) with lithium perchlorate（Li Cl O4） and different plasticizers. XRD and FTIR spectroscopic techniques were used to characterize the structure and the complexation of plasticizer with the host polymer matrix. The role of interaction between polymer hosts and plasticizer on conductivity is discussed using the results of alternating current（a.c.） impedance studies. TG-DTA and SEM were used for thermal and physical characterizations. Maximum ionic conductivity(3.26 × 10;S·cm;) has been observed for ethylene carbonate（EC）-based polymer electrolytes. Electrochemical performance of the plasticized polymer electrolyte is evaluated in LiFePO;/plasticized polymer electrolytes（PPEs）/Li coin cell. Good performance with low capacity fading on charge discharge cycling is demonstrated.

关键词： X-ray diffraction Impedance spectroscopy Atomic force microscopy Ionic conductivity Dielectrics

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Retreived bacteria from Noctiluca miliaris (green) bloom of the northeastern Arabian Sea

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Chinese Journal of Oceanology and Limnology 2013年第1期31卷 10-20页

作者： BASU Subhajit MATONDKAR SG prabhu FURTADO Irene Department of Microbiology Goa University National Institute of Oceanography (CSIR-India)

In recent years, seasonal blooms of the dinoflagellate Noctiluca miliaris have appeared in the open-waters of the northern Arabian Sea （NAS）. This study provides the first characterization of bacteria from a seasonal bloom of green Noctiluca ofNAS （20°N-17°N and 64°E-70°E）, during the spring-inter-monsoon cruise ofSagar Sampada 253, in March 2007. Bacterial growth as assessed by most-probable number （MPN） and plate counts, revealed ＇variable-physiotypes＇ over a wide range of salinities （0%-25% w/v NaC1）, pH levels （5-8.5）, and organic nutrient strengths, in comparison to non-bloom waters. MPN indices of bacteria in surface waters of bloom stations ＊DWK and ＊PRB, corresponded to （3.08-4.41）×103 cells/mL at 3.5% NaC1 （w/v）, and （2.82-9.49）× 102 cells/mL at 25% （w/v） NaC1 in tryptone-yeast extract broth （TYE）. Plate counts were （1.12-4） × 106 CFU/mL at 0% （w/v） NaC1, （1.28-3.9） × 106 CFU/mL at 3.5% （w/v） NaC1, and （0.4- 7）×104 CFU/mL at 25% NaC1 （w/v） on TYE. One-tenth-strength Zobell＇s gave （0.6-3.74）× 105 CFU/mL at pH 5 to （3.58-7.5）× 105 CFU/mL at pH 8.5. These bacteria were identified to the genera Bacillus, Cellulomonas, Staphylococcus, Planococcus, Dietzia, Diergibacillus, Micrococcus, Sporosarcinae, Leucobacter, and Halomonas. The identity of three strains （GUFBSS253N2, GUFBSS253N30, and GUFBSS253N84） was confirmed through 16S rDNA sequence homology as Bacillus cohnii, Bacillusflexus, and Bacillus cereus. The -2-3-fold higher plate counts of culturable bacteria from the open-waters of the NAS indicate that these bacteria could critically determine the biogeochemical dynamics of the bloom and its milieu. The role of these bacteria in sustaining/terminating the bloom is under evaluation.

关键词： northeastern Arabian Sea (NAS) green Noctiluca bloom retrievable bacteria

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Binder-free heterostructure(g-C3N4/PPy) based thin film on semi-flexible nickel foam via hybrid spray technique for energy storage application

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Progress in Natural Science:Materials International 2020年第3期30卷 298-307页

作者： Navaneethan Duraisamy prabhu S Ramesh R Kavitha Kandiah Department of Chemistry J.K.K.Nataraja College of Arts and Science Komarapalayam 2. Department of Physics Periyar University Department of Microbiology Periyar University Center for New and Renewable Energy Department of Physics Periyar University

A semi-flexible binder-free graphitic carbon nitride(g-CN) intercalated polypyrrole(PPy) nanocomposite thin film was prepared via hybrid electrospray technique. A homogeneous thin film was achieved by the controlled spray process. A deposited thin film illustrated the amorphous nature of composite with high surface purity and good chemical composition. The surface analysis confirmed the smoother surface with well-defined distinct phases of g-CNand PPy matrix in the composite thin film. The electrochemical studies exhibited that a maximum areal capacity of the thin film was achieved to be 289.6 mF/cm~2 at a current density of 0.4 mA/cm~2,which is higher than that of pristine PPy(194.8 mF/cm~2). The heterostructure electrode illustrated that the life cycles of 99% could be up to 10,000 cycles with low resistance due to the synergetic effect of g-CNand PPy matrix with strong material adhesion(hybrid spray process) on the surface. A binder-free heterostructure thin film will play a significant role in the energy storage application.

关键词： Polypyrrole G-C 3 N 4 Heterostructure Spray Thin film Electrochemical study

Optimal Data Placement and Replication Approach for SIoT with Edge

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Computer Systems Science & Engineering 2022年第5期41卷 661-676页

作者： B.prabhu Shankar S.Chitra Department of Information Technology Er Perumal Manimekalai College of EngineeringHosur635117TamilnaduIndia Department of Computer Science and Engineering Er Perumal Manimekalai College of EngineeringHosur63117TamilnaduIndia

Social networks(SNs)are sources with extreme number of users around the world who are all sharing data like images,audio,and video to their friends using IoT *** concept is the so-called Social Internet of Things(SIot).The evolving nature of edge-cloud computing has enabled storage of a large volume of data from various sources,and this task demands an efficient storage *** this kind of large volume of data storage,the usage of data replication using edge with geo-distributed cloud service area is suited to fulfill the user’s expectations with low *** major issue is the way to store the data and replicate these large data items optimally and allocate the request from the data center *** efficient storage of these data,we use edge server,which is part of the cloud server,in this ***,the data are distributed and stored with quick access,which will reduce the latency with *** proposed data placement approach learns with machine learning(ML)algorithm called radial basis kernel function assisted with support vector machine(RBF-SVM)to classify the data center for storing the user and friend’s data from the SIoT *** learning algorithms will be used to predict the workload of the data stored in the data center as either edge or cloud depending on the existing time *** data placement with dynamic nature is also optimized using the proposed dynamic graph partitioning(GP)method to meet the individual user’s demand of low latency with minimum *** way will keep the SIoT data placement efficient and effective over ***,this proposed data placement and replication approach introduces three kinds of innovations compared with the existing data placement approach.(i)Rather than storing the user data in a single cloud,this study uses the edge server closest to the SIoT devices for faster access with reduced response time.(ii)The classification algorithm called RBF-SVM is used to find storage for

关键词： Data placement data replication social network social internet of things edge computing cloud computing graph partitioning support vector machine machine learning radial basis function latency storage cost

Spontaneous septicaemia with multi-organ dysfunction - a new face for Pantoe agglomerans?

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Asian Pacific Journal of Tropical Medicine 2012年第1期5卷 83-84页

作者： Kushal Naha Ramamoorthi Mukhyaprana prabhu Department of Medicine Kasturba HospitalManipal-576 104KarnatakaIndia

Pantoe agglomerans (P. agglomerans) is an unusual cause for sepsis in immunocompetent individuals, especially in the absence of characteristic risk factors. We report one such case occurring in a farmer, manifesting with severe illness. The severe nature of illness and the apparently spontaneous origin of septicemia underline the pathogenic potential of this organism. When coupled with the ubiquity of the organism, there is a definite possibility that this disease may become increasingly frequent in the near future, especially in agronomic countries like India. Further studies on the epidemiology and natural history of this disease are required.

关键词： Pantoe agglomerans Spontaneous septicemia Multi-organ dysfunction

The role of surfactant and non-invasive mechanical ventilation in early management of respiratory distress syndrome in premature infants

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World Journal of Pediatrics 2014年第3期10卷 204-210页

作者： Narayan prabhu Iyer Maroun Jean Mhanna Department of Pediatrics Division of NeonatologyCase Western Reserve University School of MedicineMetroHealth Medical CenterClevelandOhio 44109USA

Background:Surfactant replacement therapy has been used for few decades for the treatment of respiratory distress syndrome(RDS)and has significantly improved morbidity and mortality in premature ***-invasive respiratory support has recently emerged as a strategy in the early management of *** this review,we discuss the different strategies of early management of *** sources:A literature search of PubMed database was conducted to review the *** quality of evidence of key clinical studies was graded according to a modified grading system of the international GRADE ***:Continuous positive airway pressure(CPAP)with selective surfactant is a safe alternative to routine intubation,surfactant and mechanical ventilation in preterm infants with spontaneous breathing,and such an approach has been associated with decreased risk of death and bronchopulmonary *** is a risk of pneumothorax when using a high pressure of CPAP(≥8 cm of H_(2)O),a high partial pressure of carbon dioxide(PCO_(2)>75 mm of Hg),and a high fraction of inspired oxygen(FiO_(2)>0.6)as a threshold for intubation while on ***:Not all preterm infants need surfactant treatment,and non-invasive respiratory support is a safe and effective approach.

关键词： non-invasive mechanical ventilation prematurity respiratory distress syndrome

Crop and weed discrimination using Laws’ texture masks

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International Journal of Agricultural and Biological Engineering 2020年第1期13卷 191-197页

作者： Radhika Kamath Mamatha Balachandra Srikanth prabhu Department of Computer Science and Engineering Manipal Institute of TechnologyManipal Academy of Higher EducationManipalIndia

Computers have become an integral part of human *** are used in almost every field even in *** like computer vision-based pattern recognition are being used to detect diseases and pests like weeds affecting the *** Weeds are unwanted plants growing among crops competing for nutrients,water,and *** can significantly reduce the quality and yield of the crops incurring a huge loss to the *** paper investigates the use of texture features extracted from Laws’texture masks for discrimination of Carrot crops and weeds in digital ***’texture method is one of the popular methods used to extract texture features in medical image processing,though not much explored in plant-based images or agricultural *** experiment was carried out on two categories of benchmark digital image datasets of Carrot crop and Carrot weed respectively,which are publicly available.A total of 70 texture features were *** dimensionality reduction technique was used to get the optimal *** features were then used to train the Random Forest *** results and observations from the experiment showed that the classifier achieved above 94%accuracy.

关键词： precision agriculture crop weed texture analysis classifier

HIV-tuberculosis co-infection in an Indian scenario:The role of associated evidence of immunosuppression

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Asian Pacific Journal of Tropical Medicine 2013年第4期6卷 320-324页

作者： Kushal Naha Sowjanya Dasari Mukhyaprana prabhu Department of Medicine Kasturba HospitalManipal 576104KarnatakaIndia

Objective:To determine the relationship between tuberculosis and the degree of immunosuppression as determined by CD4 *** impact of immunosuppression on the severity of tuberculosis was also ***:A retrospective analysis was performed in patients newly diagnosed with HIV infection and antiretroviral therapy(ART)-naive patients with known HIV *** patients were diagnosed with active tuberculosis between January 2008 and December 2010,based on review of their medical *** on chemoprophylaxis for opportunistic infection were *** and severity of tuberculosis,associated stigmata of immunosuppression,and CD4 counts were ***:Of 140 patients satisfying the inclusion criteria.52 had mild tuberculosis with no other evidence of immunosuppression,52 had tuberculosis of variable severity with associated evidence of immunosuppression,and 36 had severe tuberculosis with no other evidence of *** CD4 count was highest in the first group[<109.2±99.9) cells/μL]and least in the second group[(58.4±39.8) cells/μL], and the difference was statistically significant(P=0.004).No statistical difference was observed in the CD4 count between those with mild tuberculosis and those with severe tuberculosis. Conclusions:In developing countries with a high prevalence of tuberculosis in the general population,the possibility of incidental tuberculosis in patients with HIV should always be ***4 count does not appear to influence the severity of *** presence of concomitant evidence of immunosuppression in the form of category B and C conditions is indicative of underlying immunosuppression and associated with a significantly lower CD4 count.

关键词： HIV Tuberculosis Co-infection Immunosuppression

Brucellosis and tuberculosis:Clinical overlap and pitfalls

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Asian Pacific Journal of Tropical Medicine 2013年第10期6卷 823-825页

作者： Sowjanya Dasari Kushal Naha Mukhyaprana prabhu Department of Medicine Kasturba HospitalManipal-576 104KarnatakaIndia

Objective:To identify characteristic features of tuberculosis in patients with culture proven ***:A retrospective analysis was performed on patients diagnosed with culture proven brucellosis between January and December 2011,based on review of their medical *** with demonstrable co-infection with tuberculosis were *** features,laboratory parameters and tissue histopathology reports where available were ***:Thirty-two patients with brucellosis were included in the ***-one(65.63%)patients had chronic fever,thirteen(40.63%)had a productive cough,while significant weight loss,evening rise of temperature and night sweats were reported by eight(25.00%),eleven(34.38%)and five(15.63%)patients ***(28.13%)patients had at least three of these ***,hepatomegaly and splenomegaly were noted on examination in seven(21.88%),fifteen(46.88%)and twelve(37.50%)patients ***(25.00%)patients had hepatosplenomegaly,of these only two had associated significant *** examination was normal in all *** ESR greater than 50 mm/hr was seen in eight(25.00%),it was greater than 100 mm/hr in five(15.63%)*** was seen in eight(25.00%)*** marrow biopsy showed non-caseating granulomas in three(9.38%)cases,lymph node biopsy showed granulomas in one ***,three(9.38%)patients had known risk factors for tuberculosis,while six(18.75%)had risk factors for ***:There is a clear overlap between brucellosis and tuberculosis both in terms of clinical presentation and laboratory *** is essential to c-arefully rule out tuberculosis in all cases of suspected or proven brucellosis before initiating antimicrobial therapy,in order to forestall development of drug-resistant tuberculosis.

关键词： Brucellosis Tuberculosis Overlap Drug resistance