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Improved Monarchy Butterfly Optimization Algorithm (IMBO): Intrusion Detection Using Mapreduce Framework Based Optimized ANU-Net

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Computers, Materials & Continua 2023年第6期75卷 5887-5909页

作者： kunda suresh babu Yamarthi Narasimha Rao School of Computer Science and Engineering VIT-AP UniversityAmaravathi522237Andhra PradeshIndia

The demand for cybersecurity is rising recently due to the rapid improvement of network *** a primary defense mechanism,an intrusion detection system(IDS)was anticipated to adapt and secure com-puting infrastructures from the constantly evolving,sophisticated threat ***,various deep learning methods have been put forth;however,these methods struggle to recognize all forms of assaults,especially infrequent attacks,because of network traffic imbalances and a shortage of aberrant traffic samples for model *** work introduces deep learning(DL)based Attention based Nested U-Net(ANU-Net)for intrusion detection to address these issues and enhance detection *** this IDS model,the first data preprocessing is carried out in three stages:duplication elimi-nation,label transformation,and data *** the features are extracted and selected based on the Improved Flower Pollination Algorithm(IFPA).The Improved Monarchy Butterfly Optimization Algorithm(IMBO),a new metaheuristic,is used to modify the hyper-parameters in ANU-Net,effectively increasing the learning rate for spatial-temporal information and resolving the imbalance *** the use of parallel programming,the MapReduce architecture reduces computation complexity while signifi-cantly accelerating *** publicly available data sets were used to evaluate and test the *** investigational outcomes suggest that the proposed technique can more efficiently boost the performances of IDS under the scenario of unbalanced *** proposed method achieves above 98%accuracy and classifies various attacks significantly well compared to other classifiers.

关键词： Intrusion detection system(IDS) attention based nested U-Net

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Ionic liquid electrolytes for sodium-ion batteries to control thermal runaway

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Journal of Energy Chemistry 2023年第6期81卷 321-338,I0008页

作者： keith Sirengo Aswathy babu Barry Brennan suresh C.Pillai Nanotechnology and Bio-Engineering Research Group Department of Environmental ScienceAtlantic Technological UniversityATU SligoAsh LaneSligo F91 YW50Ireland Health and Biomedical(HEAL)Strategic Research Centre Atlantic Technological UniversityATU SligoAsh LaneSligo F91 YW50Ireland

Sodium-ion batteries are expected to be more affordable for stationary applications than lithium-ion batteries,while still offering sufficient energy density and operational capacity to power a significant segment of the battery *** this,thermal runaway explosions associated with organic electrolytes have led to concerns regarding the safety of sodium-ion *** electrolytes,ionic liquids are promising because they have negligible vapor pressure and show high thermal and electrochemical *** review discusses the safety contributions of these electrolyte properties for high-temperature *** ionic liquids provide thermal stability while at the same time promoting high-voltage window battery ***,apart from cycle stability,there is an additional safety feature attributed to modified ultra-concentrated ionic liquid *** these contributions,the following have been discussed,heat sources and thermal runaway mechanisms,thermal stability,the electrochemical decomposition mechanism of stable cations,and the ionic transport mechanism of ultra-concentrated ionic liquid *** addition,the contributions of hybrid electrolyte systems consisting of ionic liquids with either organic carbonate or polymers are also *** thermal stability of ionic liquids is found to be the main contributor to cell safety and cycle *** high-temperature applications where electrolyte safety,capacity,and cycle stability are important,highly concentrated ionic liquid electrolyte systems are potential solutions for sodium-ion battery applications.

关键词： Thermal stability Ionic liquids Sodium-ion batteries Cycle stability Ionic conductivity

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Characteristics of MOF, MWCNT and graphene containing materials for hydrogen storage: A review

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Journal of Energy Chemistry 2019年第3期28卷 132-144页

作者： kranthi kumar Gangu suresh Maddila Saratchandra babu Mukkamala Sreekantha B Jonnalagadda School of Chemistry & Physics University of KwaZulu-Natal Westville Campus Department of Chemistry GITAM Institute of Science GITAM University

Hydrogen is a generally abundant, safe, clean and environmentally apt alternative fuel, which replenishes the void generated by depleting fossil fuel reserves. The adoption of hydrogen as an energy source has been restricted to low levels due to the complications associated with its viable storage and usage. Existing technologies, such as storage of hydrogen in compressed and liquefied forms are not adequate to meet the broad on-board applications. The gravimetric energy density(120 MJ/kg) of hydrogen is three times higher than that of gasoline products, so solid-state hydrogen storage is ***-organic frameworks(MOFs), multi-walled carbon nanotubes(MWCNTs) and graphene are solid adsorbents majorly employed for efficient H_2 storage. The prominent features of MOFs such as permanent porosity, structural rigidity, and surface area are attractive and ideal for hydrogen storage. In addition,nanostructured carbon materials(MWCNTs and graphene) and their composites have demonstrated significant hydrogen storage capacities. Some important parameters for the success of the hydrogen economy include high storage density, adsorption/desorption temperature and cycling time. Cryo-hydrogen storage was achieved in MOFs and their composites with carbon structures, but storage at ambient temperature and acceptable pressures is a major hurdle. This review discusses various strategies and mechanisms in the design of adsorbents explored to improve H_2 storage capacities and afford opportunities to develop new sustainable hydrogen technologies to meet energy targets.

关键词： Hydrogen storage Metal-organic frameworks MWCNTs/Graphene Nanocomposites Spillover Hydrogen economy

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Studies on composite solid propellant with tri-modal ammonium perchlorate containing an ultrafine fraction

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Defence Technology（防务技术） 2017年第4期13卷 239-245页

作者： k.V. suresh babu P. kanaka Raju C.R. Thomas A. Syed Hamed k.N. Ninan Solid Propellant Space Booster Plant Satish Dhawan Space Centre Sriharikota 524124 India Rocket Propellant Plant Vikram Sarabhai Space Centre Thiruvananthapuram 695 022 India Department of Chemistry Indian Institute of Space Science and Technology Thiruvananthapuram 695 547 India

Composite solid propellant is prepared using tri-modal Ammonium perchlorate(AP)containing coarse,fine and ultrafine fractions of AP with average particle size(APS)340,40 and 5 mm respectively,in various compositions and their rheological,mechanical and burn rate characteristics are *** optimum combination of AP coarse to fine to ultrafine weight fraction was obtained by testing of series of propellant samples by varying the AP fractions at fixed solid *** concentration of aluminium was maintained constant throughout the experiments for ballistics *** propellant formulation prepared using AP with coarse to fine to ultrafine ratio of 67:24:9 has lowest viscosity for the propellant paste and highest tensile strength due to dense packing as supported by the literature.A minimum modulus value was also observed at 9 wt.%of ultrafine AP concentration indicates the maximum solids packing density at this ratio of AP *** burn rate is evaluated at different pressures to obtain pressure *** of ultrafine fraction of AP in propellant increased burn rate without adversely affecting the pressure *** solid loading propellants are prepared by increased AP concentration from 67 to 71 wt.%using AP with coarse to fine to ultrafine ratio of67:24:*** solid content up to 89 wt.%was achieved and hence increased solid motor *** unloading viscosity showed a trend with increased AP content and the propellant couldn't able to cast beyond 71 wt.%of *** properties were also studied and from the experiments noticed that%elongation decreased with increased AP content from 67 to 71 wt.%,whereas tensile strength and modulus *** rate increased with increased AP content and observed that pressure exponent also increased and it is high for the propellant containing with 71 wt.%of AP due to increased oxidiser to fuel *** composite solid propellant is prepared by using burn rate modifie

关键词： Ammonium perchlorate Composite propellant Burn rate Copper chromite Iron oxide

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Comparative investigation of coal-and oil-fired boilers based on emission factors,ozone and secondary organic aerosol formation potentials of VOCs

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Journal of Environmental Sciences 2020年第6期32卷 245-255页

作者： Hsi-Hsien Yang Sunil kumar Gupta Narayan babu Dhital Lin-Chi Wang suresh Pandian Elumalai Department of Environmental Engineering and Management Chaoyang University of TechnologyTaichungChinese Taipei Department of Applied Chemistry Chaoyang University of TechnologyTaichungChinese Taipei Department of Environmental Science Patan Multiple CampusTribhuvan UniversityLalitpurNepal Department of Environmental Engineering Chung Yuan Christian UniversityTaoyuanChinese Taipei Department of Environmental Science and Engineering Indian Institute of Technology(Indian School of Mines)DhanbadIndia

Volatile organic compounds(VOCs)are the important precursors of the tropospheric ozone(O3)and secondary organic aerosols(SOA),both of which are known to harm human health and disrupt the earth’s climate *** this study,VOC emission factors,O3 and SOA formation potentials were estimated for two types of industrial boilers:coal-fired boilers(n=3)and oil-fired boilers(n=3).Results showed that EVOCs concentrations were more than nine times higher for oil-fire d boilers compared to those for coal-fired *** factors ofΣVOCs were found to be higher for oil-fired boilers(9.26-32.83 mg-VOC/kg)than for coal-fired boilers(1.57-4.13 mg-VOC/kg).Alkanes and aromatics were obtained as the most abundant groups in coal-fired boilers,while oxygenated organics and aromatics were the most contributing groups in oil-fired ***,n-hexane and o-ethyl toluene were the abundant VOC species in coal-fired boiler emissions,whereas toluene was the most abundant VOC species emitted from oil-fired boilers.O3 and SOA formation potentials were found 12 and 18 times,respectively,higher for oil-fired than for coal-fired *** OFP ranged from 3.99 to 11.39 mg-O3/kg for coal-fired *** oil-fired boilers,total OFP ranged from 36.16 to 131.93 mg-O3/***,total secondary organic aerosol potential(SOAP)ranged from 65.4 to 122.5 mg-SOA/kg and 779.9 to 2252.5 mg-SOA/kg for the coal-fired and oil-fired boilers,respectively.

关键词： Coal-and oil-fired boilers Volatile organic compounds Emission factor Ozone formation potential Secondary organic aerosol potential

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Development and validation of a stability-indicating RP–HPLC method for estimation of atazanavir sulfate in bulk

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Journal of Pharmaceutical Analysis 2017年第2期7卷 134-140页

作者： S.Dey S.Subhasis Patro N.suresh babu P.N.Murthy S.k.Panda Dr.B.C.Roy College of Pharmacy&Allied Health Sciences Meghnad Saha SaraniBidhannagarDurgapur713206West BengalIndia Royal College of Pharmacy and Health Sciences Dist.-GanjamBerhampur 760002OrissaIndia

A stability-indicating reverse phase–high performance liquid chromatography（RP–HPLC） method was developed and validated for the determination of atazanavir sulfate in tablet dosage forms using C_（18） column Phenomenix（250 mm×4.6 mm, 5 μm） with a mobile phase consisting of 900 mL of HPLC grade methanol and100 mL of water of HPLC grade. The pH was adjusted to 3.55 with acetic acid. The mobile phase was sonicated for 10 min and filtered through a 0.45 μm membrane filter at a flow rate of 0.5 mL/min. The detection was carried out at 249 nm and retention time of atazanavir sulfate was found to be 8.323 min. Linearity was observed from 10 to 90 μg/mL（coefficient of determination R^2 was 0.999） with equation, y=23.427x＋*** sulfate was subjected to stress conditions including acidic, alkaline, oxidation, photolysis and thermal degradation, and the results showed that it was more sensitive towards acidic degradation. The method was validated as per ICH guidelines.

关键词： Atazanavir sulfate RP–HPLC Isocratic elution Validation Stability indicating

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Apoptogenic activity of ethyl acetate extract of leaves of Memecylon edule on human gastric carcinoma cells via mitochondrial dependent pathway

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Asian Pacific Journal of Tropical Medicine 2013年第5期6卷 337-345页

作者： VGM.Naidu Bandari Uma Mahesh Ashwini kumar Giddam kuppan Rajendran Dinesh babu Jian Ding k.suresh babu B Ramesh Rajeswara Rao Pragada Gopalakrishnakone P Venom & Toxin Research Programme Department of AnatomyYong Loo Lin School of Medicine4 Medical DriveNational University of SingaporeSingapore-117597 Currently affiliated to Department of Pharmacology & Toxicology National Institute of Pharmaceutical Education & Research(NIPER)BalanagarHyderabadA.PIndia-500037 Department of pharmacology A.U.College of pharmaceutical SciencesAndhra universityVishakhapatnamAndhra PradeshIndia-530003 Natural Products Laboratory Indian Institute of Chemical TechnologyUppal RoadHyderabad 500 607India

Objective:To evaluate the anti-proliferative and apoptogenic activity of ethyl acetate extract from the leaves of Memecylon edule(EtAc-LME) in MkN-74,NUGC gastric cancer cells and non cancerous gastric mucous cells(GES-1),and to explore the mechanism of EtAc-LME induced ***:The mechanism of EtAc-LME induced apoptosis was explored by analysing the activation of pro-caspases,PARP cleavage,expression of cytochrome-c (Cyt-c) was determined by western blotting,mRNA expression of Bcl-2,Bax by RT-PCR,loss of mitochondrial potential using DiOC6 dye,annexin binding assay and its influence on cell cycle arrest by flow ***:The results indicated that EtAc-LME inhibited the gastric cancer cell growth in dose-dependent manner and cytotoxicity was more towards the gastric cancer cells(NUCC and MkN-74) compared to normal gastric cells(GES-1),suggesting more specific cytotoxicity to the malignant *** expression of Cyt-c and subsequent activation of caspases-3 and down regulation of Bcl-2 and loss in mitochondrial potential in EtAc-LME treated MkN-74 and NUGC cells suggested that EtAc-LME induced apoptosis by mitochondrial dependent ***:The present findings suggest that ethyl acetate extract of Memecylon edule induces apoptosis selectively in gastric cancer cells emphasizing the importance of this traditional medicine for its potential in the treatment of gastric cancer.

关键词： Memecylon edule Anti-cancer Gastric cancer Apoptosis

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Evaluation of Large Amplitude Free Vibration Behavior of Moderately Thick Square Plates Using Coupled Displacememt Field Method

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仪器仪表学报 2013年第S1期34卷 171-177页

作者： k.Meera Saheb C.Shasikanth G.Venkateswara Rao V.suresh babu Department of Mechanical Engineering University college of engineering Department of Mechanical Engineering MallaReddy College of Engineering Hyderabad Department of Mechanical Engineering Vardhaman college of engineering Shamshabad Department of Mechanical Engineering

A simple and efficient coupled displacement field method is developed to study the large amplitude free vibration behavior of the moderately thick square plates.A single term trigonometric admissible displacement field is assumed for one of the variables,say,the total rotations(in both X,Y directions).Making use of the coupling equation,the spatial variation for the lateral displacement field is derived in terms of the total *** coupled displacement field method makes the energy formulation to contain half the number of unknown independent coefficients,in the case of a square plate,contrary to the conventional RayleighRitz *** lesser number of undetermined coefficients significantly simplifies the vibration *** expressions for the linear and nonlinear fundamental frequency parameters for the all edges simply supported moderately thick square plates are *** numerical results obtained from the present formulation are in very good agreement with those obtained from the existing literature.

关键词： vibration behavior coupled displacement field thick square plates

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Anti-microbial principles of selected remedial plants from Southern India

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Asian Pacific Journal of Tropical Biomedicine 2011年第4期1卷 298-305页

作者： Tirupathi Rao G suresh babu k J Ujwal kumar Sujana P A Veerabhadr Raoa Sreedhar AS Centre for Cellular and Molecular Biology Hyderabad 500 007India Division of Organic Chemistry-I Natural Products LaboratoryIndian Institute of Chemical TechnologyHyderabad-500 607India

Objective:To examine the anti-bacterial activity of leaf extracts of Morus alba L.(Moraceae)and Piper betel L.(Piperaceae),and seed extracts of Bombax ceiba L.(Borabacaceae).Methods:We have partially purified plant extracts by solvent extraction method,and evaluated the effect of individual fractions on bacterial growth using Escherichia coli(***),Pseudomonas aeruginosa(***) and Staphylococcus aureus(***) bacterial ***:Compared with Morus and Bombax fractions,Piper fractions showed significant growth inhibition on all the three types of bacteria *** EtOAc-hexane fractions of Piper leaves exhibited significant antibacterial activity with minimum inhibitory concentrations(MIC) of 50 μg/mL culture against both gram-positive and gram-negative *** EtOAc-fractions Ⅰ,Ⅱ,and Ⅳ inhibited bacterial colony formation on soft agar in addition to growth inhibition.A combination treatment of piper fractions with ampicillin resulted in significant growth inhibition in *** and ***,and combination with anticancer drug geldanamycin(2 μg/mL) showed selective growth inhibition against *** and *** major compounds,i.e.,eugenol,3-hexene-ol and stigmasterol,were primarily identified from Piper betel leaf *** the individual compounds,eugenol treatment showed improved growth inhibition compared with stigmasterol and ***:We are reporting potential anti-bacterial compounds from Piper betel against both gram-positive and gram-negative bacteria either alone or in combination with drug treatment.

关键词： Piper betel Anti-microbial activity Escherichia coli Pseudomonas aeruginosa Staphylococcus aureus Morus alba Bombax ceiba Minimum inhibitory concentration Growth inhibition

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Estimation of boswellic acids in herbal formulations containing Boswellia serrata extract and comprehensive characterization of secondary metabolites using UPLC-Q-Tof-MS^e

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Journal of Pharmaceutical Analysis 2019年第6期9卷 414-422页

作者： kumar katragunta Bandi Siva Niharika kondepudi PRRao Vadaparthi Nadendla Rama Rao Ashok kumar Tiwari katragadda suresh babu Centre for Natural Products and Traditional knowledge CSIR-Indian Institute of Chemical TechnologyHyderabad500007India Chalapathi Institute of Pharmaceutical Sciences LamGuntur522034India College of Pharmaceutical Sciences Acharya Nagarjuna UniversityNagarjuna NagarGuntur522510India

Boswellia serrata is a widely used herb in Indian systems of medicine and is well known for its potential medicinal properties.A chromatographic method was developed for the analysis and quanti cation of six boswellic acid marker compounds,i.e.,keto boswellic acid(1),3-O-Acetyl 11-keto-boswellic acid(2),-b Boswellic acid(3),-Boswellic acid(4),3-O-Acetyl--boswellic acid(5)and 3-O-Acetyl--boswellic acid b(6)in commercial herbal products containing *** as an *** UPLCbwith Q-Tof-MS/MS makes the better identi cation of secondary metabolites and adulterants in the herbal formulations containing *** in rapid time using fragmentation approach than the traditional *** this study quanti cation of boswellic acids with UPLC-PDA method was performed as per the pharmacopeia ***,minor phytochemical constituenBoswellia serrata is a widely used herb in Indian systems of medicine and is well known for its potential medicinal properties.A chromatographic method was developed for the analysis and quantification of six boswellic acid marker compounds,i.e.,keto boswellic acid(1),3-O-Acetyl 11-keto b-boswellic acid(2),ɑ-Boswellic acid(3),b-Boswellic acid(4),3-O-Acetyl-ɑ-boswellic acid(5)and 3-O-Acetyl-b-boswellic acid(6)in commercial herbal products containing *** as an *** UPLC with Q-Tof-MS/MS makes the better identification of secondary metabolites and adulterants in the herbal formulations containing *** in rapid time using fragmentation approach than the traditional *** this study quantification of boswellic acids with UPLC-PDA method was performed as per the pharmacopeia ***,minor phytochemical constituents were identified and characterized with the help of LC-Q-Tof-MS/MS fragmentation data and various isoforms of boswellic acids and tirucallic acids in *** oleo-gum-resin extract were *** were identi ed and characterized with the help of LC-Q-Tof-MS/MS

关键词： Boswellia serrata Herbal formulations Quantification UPLC-Q-tof-MSe Boswellic acids Tirucallic acids

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