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Electrochemically functionalized graphene as an anti-corrosion reinforcement in Cu matrix composite thin films

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International Journal of Minerals,Metallurgy and Materials 2021年第9期28卷 1525-1533页

作者： Akhya kumar Behera amlan Das Sanjeev Das Archana Mallik Electrometallurgy and Corrosion Laboratory(Research) Department of Metallurgical and Materials EngineeringNational Institute of TechnologyRourkela 769008OdishaIndia Advanced Metal Casting Laboratory Department of Metallurgical and Materials EngineeringNational Institute of TechnologyRaipur 492010ChhatisgarhIndia

Cu-graphene(Gr)composite thin films were prepared by electrodeposition route using in-house synthesized Gr *** Gr sheets were synthesized by the electrochemical exfoliation route using 1 M HClO4 acid as *** Gr sheets were confirmed by X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FTIR),field-emission scanning electron microscopy(FESEM),and transmission electron microscopy(TEM).The(002)plane of Gr sheets was observed at 2θof 25.66°.The(002)plane confirmed the crystal structure of car-bon *** stretching vibration of C=C bond at a wavelength of 1577 cm^(−1) and other functional groups of carboxyl and epoxide groups were observed from *** confirmed the transparent structure of Gr *** prepared Gr sheets were used as reinforcement at con-centrations of 0.1 and 0.3 g/L with a copper matrix to synthesize the Cu-Gr *** prepared composite thin films were characterized by XRD,SEM,and energy-dispersion spectrometry(EDS)for morphological and analytical *** presence of Gr sheets in Cu-Gr com-posite was confirmed by EDS *** prepared Cu-Gr nanocomposite thin film showed higher corrosion resistance compared with pure copper thin films in 3.5wt%NaCl,as confirmed by Tafel *** impedance spectroscopy complimented the above results and showed that 0.3 g/L composite film achieved the highest film resistance.

关键词： graphene nanocomposite electrodeposition copper

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An Improved Encoder-Decoder CNN with Region-Based Filtering for Vibrant Colorization

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Computer Systems Science & Engineering 2023年第7期46卷 1059-1077页

作者： Mrityunjoy Gain Md Arifur Rahman Rameswar Debnath MrimMAlnfiai Abdullah Sheikh Mehedi Masud Anupam kumar bairagi Computer Science and Engineering Discipline Khulna UniversityKhulna 9208Bangladesh Department of Information Technology College of Computers and Information TechnologyTaif UniversityTaif 21944Saudi Arabia Department of Computer Science College of Computers and Information TechnologyTaif UniversityTaif 21944Saudi Arabia

Colorization is the practice of adding appropriate chromatic values to monochrome photographs or videos.A real-valued luminance image can be mapped to a three-dimensional color ***,it is a severely ill-defined problem and not has a single *** this paper,an encoder-decoder Convolutional Neural Network(CNN)model is used for colorizing gray images where the encoder is a Densely Connected Convolutional Network(DenseNet)and the decoder is a conventional *** DenseNet extracts image features from gray images and the conventional CNN outputs a^(*)b^(*)color *** to a large number of desaturated color components compared to saturated color components in the training images,the saturated color components have a strong tendency towards desaturated color components in the predicted a^(*)b^(*)*** solve the problems,we rebalance the predicted a^(*)b^(*)color channel by smoothing every subregion individually using the average filter.2 stage k-means clustering technique is applied to divide the *** we apply Gamma transformation in the entire a^(*)b^(*)channel to saturate the *** compare our proposed method with several existing *** the experimental results,we see that our proposed method has made some notable improvements over the existing methods and color representation of gray-scale images by our proposed method is more plausible to ***,our suggested approach beats other approaches in terms of Peak Signal-to-Noise Ratio(PSNR),Structural Similarity Index Measure(SSIM)and Histogram.

关键词： Colorization DenseNet desaturation k-means

Polymers and their composites for corrosion inhibition application:Development, advancement, and future scope–A critical review

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Corrosion Communications 2024年第3期15卷 79-94页

作者： Himanshi bairagi Priya Vashishth Gopal Ji Sudhish kumar Shukla Eno E.Ebenso Bindu Mangla Corrosion Testing Research Lab Department of Chemistry J.C.Bose University of Science and Technology Department of Mechanical Engineering Graphic Era(Deemed to be University) Department of Sciences School of Sciences Manav Rachna University Centre for Materials Science College of Science Engineering and Technology University of South Africa Institute of Nanotechnology and Water Sustainability College of Science Engineering and Technology University of South Africa

In the last decades, corrosion control of metals and their alloys has been of environmental, aesthetic, economic,and technical importance. Ecologically acceptable, environment-friendly, and readily available corrosion inhibitors are one of the best options for protecting metals against corrosion. In this regard, use of polymers for inhibiting metallic corrosion is an authentic and acceptable practice, with a low environmental threat. Polymers may be used as composites, blends, or isolation for optimal inhibitory effects. Inhibition efficiencies of corrosion inhibitors were determined using mass loss, electrochemical impedance spectroscopy, potentiodynamic polarization techniques, etc. The present study gives the idea about natural, synthetic, and conducting polymers and their utilization for corrosion inhibition applications. Effects of halide ions as additives or surfactants on their anticorrosion performances are also discussed. Polymeric materials as coatings are reviewed to align with recent research interests, such as cost-effectiveness, environment friendliness, and self-healing products, which are more convenient to synthesize and use in future applications.

关键词： Corrosion inhibitor Polymeric composites Adsorption Coating Conducting polymer

Emerging role of non-invasive and liquid biopsy biomarkers in pancreatic cancer

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World Journal of Gastroenterology 2023年第15期29卷 2241-2260页

作者： Akash Bararia Prosenjeet Chakraborty Paromita Roy Bitan kumar Chattopadhay amlan Das Aniruddha Chatterjee Nilabja Sikdar Human Genetics Unit Indian Statistical InstituteKolkata 700108India Department of Molecular Biosciences SVYASA School of Yoga and NaturopathyBangalore 560105India Department of Pathology Tata Medical CenterKolkata 700160India Department of General Surgery IPGMER&SSKM HospitalKolkata 700020India Department of Biochemistry Royal Global UniversityAssam 781035India Department of Pathology Dunedin School of MedicineUniversity of OtagoDunedin 9061New Zealand School of Health Sciences and Technology University of Petroleum and Energy StudiesDehradun 248007India

A global increase in the incidence of pancreatic cancer(PanCa)presents a major concern and health *** traditional tissue-based diagnostic techniques provided a major way forward for molecular diagnostics;however,they face limitations based on diagnosis-associated difficulties and concerns surrounding tissue availability in the clinical *** disease development with asymptomatic behavior is a drawback in the case of existing diagnostic *** capability of cell free markers in discriminating PanCa from autoimmune pancreatitis and chronic pancreatitis along with other precancerous lesions can be a boon to ***-stage diagnosis of PanCa can be achieved only if these biomarkers specifically discriminate the non-carcinogenic disease stage from malignancy with respect to tumor *** this review,we comprehensively described the non-invasive disease detection approaches and why these approaches are gaining popularity for their early-stage diagnostic capability and associated clinical feasibility.

关键词： Non-invasive biomarkers Cell free biomarkers Proteomic biomarkers Liquid biopsy-based diagnostics Pancreatic cancer biomarkers

Unmanned Aerial Vehicle Assisted Forest Fire Detection Using Deep Convolutional Neural Network

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Intelligent Automation & Soft Computing 2023年第3期35卷 3259-3277页

作者： A.K.Z Rasel Rahman S.M.Nabil Sakif Niloy Sikder Mehedi Masud Hanan Aljuaid Anupam kumar bairagi Computer Science and Engineering Discipline Khulna UniversityKhulna 9208Bangladesh Department of Computer Science College of Computers and Information TechnologyTaif UniversityTaif 21944Saudi Arabia Computer Sciences Department College of Computer and Information SciencesPrincess Nourah Bint Abdulrahman University(PNU)Riyadh 11671Saudi Arabia

Disasters may occur at any time and place without little to no presage in *** the development of surveillance and forecasting systems,it is now possible to forebode the most life-threatening and formidable ***,forestﬁres are among the ones that are still hard to anticipate beforehand,and the technologies to detect and plot their possible courses are still in *** Aerial Vehicle(UAV)image-basedﬁre detection systems can be a viable solution to this ***,these automatic systems use advanced deep learning and image processing algorithms at their core and can be tuned to provide accurate ***,this article proposed a forestﬁre detection method based on a Convolutional Neural Network(CNN)architecture using a newﬁre detection ***,our method also uses separable convolution layers(requiring less computational resources)for immediateﬁre detection and typical convolution ***,making it suitable for real-time ***,after being trained on the dataset,experimental results show that the method can identify forestﬁres within images with a 97.63%accuracy,98.00%F1 Score,and 80%***,if deployed in practical circumstances,this identiﬁcation method can be used as an assistive tool to detectﬁre outbreaks,allowing the authorities to respond quickly and deploy preventive measures to minimize damage.

关键词： Forestﬁre detection UAV CNN machine learning

The effect of ensiled paulownia leaves in a high-forage diet on ruminal fermentation,methane production,fatty acid composition,and milk production performance of dairy cows

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Journal of Animal Science and Biotechnology 2023年第1期14卷 339-357页

作者： Haihao Huang Dorota Lechniak Malgorzata Szumacher‑Strabel amlan kumar Patra Martyna Kozłowska Pawel Kolodziejski Min Gao Sylwester Ślusarczyk Daniel Petrič Adam Cieslak Department of Animal Nutrition PoznańUniversity of Life SciencesWołyńska 3360‑637 PoznańPoland. Department of Genetics and Animal Breeding PoznańUniversity of Life SciencesWolynska 33Poznań60‑637Poland. Department of Animal Nutrition West Bengal University of Animal and Fishery Sciences37 K.B.SaraniKolkataIndia. Institute of Genetics and Animal Biotechnology Polish Academy of SciencesPostępu 36A05‑552MagdalenkaWarsawPoland. Department of Animal Physiology Biochemistry and BiostructurePoznan University of Life SciencesWolynska 35Poznan 60‑637Poland. Department of Pharmaceutical Biology and Botanic Garden of Medicinal Plants Wrocław Medical UniversityWrocław 50‑556Poland. Institute of Animal Physiology Centre of Biosciences of Slovak Academy of SciencesŠoltesovej 4‑6040‑01 KošiceSlovak Republic. Department of Animal Nutrition Faculty of Veterinary Medicine and Animal SciencePoznańUniversity of Life SciencesPoznań60‑637Poland.

Background:The use of industrial by-products rich in bioactive compounds as animal feeds can reduce greenhouse gas *** leaves silage(PLS)was supplemented to dairy cows'diet and evaluated in vitro(Exp.1;Rusitec)and in vivo(Exp.2,cannulated lactating dairy cows and Exp.3,non-cannulated lactating dairy cows).The study investigated the PLS effect on ruminal fermentation,microbial populations,methane production and concentration,dry matter intake(DMI),and fatty acid(FA)proportions in ruminal fluid and ***:Several variables of the ruminal fluid were changed in response to the inclusion of *** Exp.1,the p H increased linearly and quadratically,whereas ammonia and total volatile fatty acid(VFA)concentrations increased linearly and cubically.A linear,quadratic,and cubical decrease in methane concentration was observed with increasing dose of the ***.2 revealed an increase in ruminal p H and ammonia concentrations,but no changes in total VFA *** of PLS increased ruminal propionate(at 3 h and 6 h after feeding),isovalerate,and valerate *** of PLS also affected several populations of the analyzed *** abundances of protozoa and bacteria were increased,whereas the abundance of archaea were decreased by *** production decreased by 11%and 14%in PLS-fed cows compared to the control in Exp.2 and 3,***.3 revealed a reduction in the milk protein and lactose yield in the PLS-fed cows,but no effect on DMI and energy corrected milk ***,the PLS diet affected the ruminal biohydrogenation process with an increased proportions of C18:3 cis-9 cis-12 cis-15,conjugated linoleic acid,C18:1 trans-11 FA,polyunsaturated fatty acids(PUFA),and reduced n6/n3 ratio and saturated fatty acids(SFA)proportion in *** relative transcript abundances of the 5 of 6 analyzed genes regulating FA metabolism ***:The dietary PLS replacing the alfalfa silage at 60 g/kg diet can red

关键词： Dairy cow Fatty acid composition in milk Methane emission Paulownia leaves

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Dietary Coleus amboinicus Lour. decreases ruminal methanogenesis and biohydrogenation, and improves meat quality and fatty acid composition in longissimus thoracis muscle of lambs

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Journal of Animal Science and Biotechnology 2022年第3期13卷 816-834页

作者： Yulianri Rizki Yanza Malgorzata Szumacher-Strabel Dorota Lechniak Sylwester Ślusarczyk Pawel Kolodziejski amlan kumar Patra Zora Váradyová Dariusz Lisiak Mina Vazirigohar Adam Cieslak Department of Animal Nutrition Faculty of Veterinary Medicine and Animal SciencePoznań University of Life Sciences60-637 PoznańPoland Department of Biology Education Universitas Islam RiauJl.Kaharuddin Nasution 113Pekanbaru 28284Indonesia Department of Genetics and Animal Breeding Poznań University of Life SciencesWołyńska 3360-637 PoznańPoland Department of Pharmaceutical Biology and Botany Wrocław Medical University50-556 WrocławPoland Department of Animal Physiology and Biochemistry Faculty of Veterinary Medicine and Animal SciencePoznań University of Life Sciences60-637 PoznańPoland Department of Animal Nutrition West Bengal University of Animal and Fishery SciencesBelgachiaK.B.Sarani 37Kolkata 700037India Institute of Animal Physiology Centre of Biosciences of Slovak Academy of SciencesŠoltésovej 4-604001 KošiceSlovak Republic Department of Meat and Fat Technology Wacław Dąbrowski Institute of Agricultural and Food BiotechnologyRakowiecka 3602-532 WarszawaPoland Zist Dam Group University Incubator CenterUniversity of ZanjanZanjan 45371-38791Iran

Background:Methane production and fatty acids(FA)biohydrogenation in the rumen are two main constraints in ruminant production causing environmental burden and reducing food product *** functions can be modulated by the biologically active compounds(BACs)of plant origins as shown in several studies *** in methane emission,modulation of FA composition with positive impact on the ruminant *** amboinicus Lour.(CAL)contains high concentration of polyphenols that may potentially reduce methane production and modulate ruminal biohydrogenation of unsaturated *** study aimed to investigate the effect of BAC of Coleus amboinicus Lour.(CAL)fed to growing lambs on ruminal methane production,biohydrogenation of unsaturated FA and meat *** this study,the in vitro experiment aiming at determining the most effective CAL dose for in vivo experiments was followed by two in vivo experiments in rumen-cannulated rams and growing *** 1(RUSITEC)comprised of control and three experimental diets differing in CAL content(10%,15%,and 20%of the total diet).The two in vivo experiments were conducted on six growing,rumen-cannulated lambs(Exp.2)and 16 growing lambs(Exp.3).Animals were assigned into the control(CON)and experimental(20%of CAL)*** parameters were examined in vitro(pH,ammonia and VFA concentrations,protozoa,methanogens and select bacteria populations)and in vivo(methane production,digestibility,ruminal microorganism populations,meat quality,fatty acids profiles in rumen fluid and meat,transcript expression of 5 genes in meat).Results:CAL lowered in vitro methane production by 51%.In the in vivo Exp.3,CAL decreased methane production by 20%compared with the CON group,which corresponded to reduction of total methanogen counts by up to 28%in all experiments,notably *** Exp.3,CAL increased or tended to increase populations of some rumen bacteria(Ruminococcus albus,Megasphaera elsdenii,Butyrivibr

关键词： Bioactive compounds Biohydrogenation Meat characteristics Methane Microorganism Ruminal fermentation Sheep

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Analysis of Acute Poisoning Cases Presenting to the Medical Emergency Department

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Journal of Forensic Science and Medicine 2024年第4期10卷 261-266页

作者： Qudsia Nuzhat Simhadri V.S.D.N.A.Nagesh Parthajyoti Neog Sujata Singh Kaustav kumar bairagi Department of Pharmacology Shri Ram Murti Smarak Institute of Medical SciencesBareillyUttar PradeshIndia Department of Forensic Medicine and Toxicology Shri Ram Murti Smarak Institute of Medical SciencesBareillyUttar PradeshIndia

Introduction:Acute poisoning cases are always a medical *** management with proper identification of the poisoning agent is very much *** study aimed to estimate the sociodemographic pattern and outcome of acute poisoning cases so that the emergency health-care provider can decide on a suitable management procedure as well as effective preventive measures as early as possible when they receive a *** and Methods:A retrospective observational study was carried out for a 1-year duration after getting approval from the Institutional Ethical *** of either gender with acute poisoning were collected from the records of the medical emergency department of the hospital with the details of age,gender,occupation,type of poisoning,route of administration,and *** was done with suitable ***:We got a total of 91 acute poisoning cases,where 61(67.03%)patients survived and 30(32.96%)patients succumbed to *** highest cases were seen due to aluminum phosphide(ALP)and it was about 47(51.64%),followed by organophosphorus(OP)21(23.07%).The most common age group was early adulthood(20-30 years)followed by the adolescence(10-19 years)age *** cases were 50(54.94%)compared to females 41(45.05%)and married cases were 51(56.04%)compared to unmarried cases 40(43.95%).Conclusions:ALP poisoning was highest followed by OP,and all cases were suicidal in *** cases were higher than female *** reporting to the hospital significantly increased the death rate.

关键词： Aluminum phosphide insecticides organophosphorus suicide

Negative Imaginary Approached High Performance Robust Resonant Controller Design for Single-Phase Islanded Microgrid and Its Voltage Observation on Different Load Condition

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Intelligent Control and Automation 2018年第2期9卷 52-63页

作者： Arnob kumar bairagi Ahasan Habib Rakib Rahman Motiur Rahman Moniruzzaman Jewel Department of Electrical and Electronic Engineering Rajshahi University of Engineering & Technology Rajshahi Bangladesh Department of Electrical and Electronic Engineering Bangladesh Army University of Engineering & Technology Natore Bangladesh Institute of Information and Technology Jahangirnagar University Savar Bangladesh

This paper presents the design of a high performance robust resonant controller for the islanded single-phase microgrid operation on different loads conditions. The design of the controller is done using the results of Negative Imaginary approach. The performance of the proposed controller has been found much effective to track the instantaneous reference grid voltage. The simulation work has been done with the help of MATLAB/SimPower System toolbox. This shows that the proposed controller provides effective control of voltage against the uncertain load conditions.

关键词： Controller Design Islanded Microgrid Robust Voltage Control