Corrosion Studies of Mild Steel (MS) in 3 M HCl Solution in the Presence of Expired Perindopril Drug: Mitigation of MS Corrosion by Green Corrosion Inhibitor

This original article emphasizes the mitigation of MS corrosion in 3 M HCl solution by expired perindopril drug. The weight loss (mass loss) and electrochemical (Tafel plot and impedance plots) techniques were employed for the MS corrosion inhibition studies. Weight loss technique results show that, MS corrosion in 3 M HCl solution can be prevented with the inhibitor concentration (expired perindopril drug concentration) and solution temperature dependent mode. The Tafel plot results show that, the expired perindopril drug acts as mixed type corrosion inhibitor for MS in 3 M HCl solution. The Nyquist plots in the absence and presence of the corrosion inhibitor confirms the adsorption of expired perindopril drug molecules on the MS surface in the 3 M HCl solution. The scanning electron microscopy (SEM) topography further supports the results of weight loss, Tafel plots and impedance spectroscopy results

Corrosion Studies of Mild Steel (MS) in 3 M HCl Solution in the Presence of Expired Perindopril Drug: Mitigation of MS Corrosion by Green Corrosion Inhibitor

This original article emphasizes the mitigation of MS corrosion in 3 M HCl solution by expired perindopril drug. The weight loss (mass loss) and electrochemical (Tafel plot and impedance plots) techniques were employed for the MS corrosion inhibition studies. Weight loss technique results show that, MS corrosion in 3 M HCl solution can be prevented with the inhibitor concentration (expired perindopril drug concentration) and solution temperature dependent mode. The Tafel plot results show that, the expired perindopril drug acts as mixed type corrosion inhibitor for MS in 3 M HCl solution. The Nyquist plots in the absence and presence of the corrosion inhibitor confirms the adsorption of expired perindopril drug molecules on the MS surface in the 3 M HCl solution. The scanning electron microscopy (SEM) topography further supports the results of weight loss, Tafel plots and impedance spectroscopy results

Utilization of Expired Calcitriol as an Eco-friendly Corrosion Inhibitor on the Copper Metal in the Aerated Acidic Environment

Corrosion inhibition mechanism of expired Calcitriol as a nontoxic corrosion inhibitor on the copper in the aerated 5 M HCl solution was thoroughly examined via weight loss (mass loss), Tafel plot (potentiodynamic polarization), AC impedance spectroscopy and surface topography techniques. Weight loss (mass loss) confirms the good corrosion protection efficiency of expired Calcitriol drug on the copper surface in 5 M HCl solution. Tafel plot study reveals the anodic type corrosion inhibition property of expired Calcitriol in the studied system. AC impedance spectroscopy and scanning electron microscopy (SEM) reveals the formation of an invisible compact layer on the copper electrode in 5 M HCl solution

Utilization of Expired Calcitriol as an Eco-friendly Corrosion Inhibitor on the Copper Metal in the Aerated Acidic Environment

Corrosion inhibition mechanism of expired Calcitriol as a nontoxic corrosion inhibitor on the copper in the aerated 5 M HCl solution was thoroughly examined via weight loss (mass loss), Tafel plot (potentiodynamic polarization), AC impedance spectroscopy and surface topography techniques. Weight loss (mass loss) confirms the good corrosion protection efficiency of expired Calcitriol drug on the copper surface in 5 M HCl solution. Tafel plot study reveals the anodic type corrosion inhibition property of expired Calcitriol in the studied system. AC impedance spectroscopy and scanning electron microscopy (SEM) reveals the formation of an invisible compact layer on the copper electrode in 5 M HCl solution

Red Arecanut Seed Extract as a Sustainable Corrosion Inhibitor for Aluminum Submerged in Acidic Corrodent: An Experimental Approach Towards Zero Environmental Impact

The effect of the red arecanut seed (RAS) extract on the corrosion of aluminum in 0.5 M hydrochloric acid environment is reported by weight loss, electrochemical (Tafel plot and impedance spectroscopy), scanning electron microscopy and atomic force microscopy studies. The weight loss study indicated that, protection efficiency of the red arecanut seed extract is directly proportional to its concentration and inversely proportional to solution temperature and aluminum contact time in the test solution. Langmuir adsorption isotherm is best fitted model explaining the adsorption of red arecanut seed extract constituents on aluminum surface in 0.5 M HCl system. The results obtained from Tafel curves indicated the mixed inhibition role of red arecanut seed extract. The impedance spectroscopy technique indicated that, red arecanut seed extract reduces the speed of aluminum corrosion by charge transfer process. The scanning electron microscopy and atomic force microscopy images of aluminum specimens clearly give clues about the adsorption of plant constituents on the surface of the aluminum metal

Influence Of Porosity And Alloy Addition On The Wear Behaviour Of A Sinter-Forged C45 Steel Using Taguchi Method

Elemental powders of Atomized Iron (Fe), Carbon (C) and Molybdenum (Mo) were weighed and mixed in a pot mill to yield the composition of C45, C45-1%Mo and C45-2%Mo Steels, then compacted and sintered. The Sintered preforms had a density- 75% of the Theoretical Density. Then the Sintered preforms were subjected to densification to get two densities- 80% and 85% of the theoretical density through Forging. The sintered and densified preforms of alloy steels are subsequently machined to get the required test specimens. The experiments were conducted on a pin-on-disc Tribometer, conforming to ASTM G99 standards, on a rotating EN32 disc. Using Minitab 16 software, the Dry Sliding wear experiments were planned using L27 Orthogonal Array. The % Theoretical Density of the Specimens, % Mo Addition, Load and Sliding Speed were taken as input parameters, mass loss was the output parameter. It was observed that the increasing density of alloy steels adversely affects the wear resistance of the alloy steels and mass loss is increased. It was found that the addition of Mo significantly improves the wear resistance of the alloy steels irrespective of the densities due to hard phase carbides present in the microstructure. Empirical correlations for mass loss with respect to input parameters had been developed using Regression Analysis. In the case of Mo added alloy, Mo particulates embedded between the ferrite-pearlite grains are observed from the microstructure

Adversarial sketch-photo transformation for enhanced face recognition accuracy: a systematic analysis and evaluation

This research provides a strategy for enhancing the precision of face sketch identification through adversarial sketch-photo transformation. The approach uses a generative adversarial network (GAN) to learn to convert sketches into photographs, which may subsequently be utilized to enhance the precision of face sketch identification. The suggested method is evaluated in comparison to state-of-the-art face sketch recognition and synthesis techniques, such as sketchy GAN, similarity-preserving GAN (SPGAN), and super-resolution GAN (SRGAN). Possible domains of use for the proposed adversarial sketch-photo transformation approach include law enforcement, where reliable face sketch recognition is essential for the identification of suspects. The suggested approach can be generalized to various contexts, such as the creation of creative photographs from drawings or the conversion of pictures between modalities. The suggested method outperforms state-of-the-art face sketch recognition and synthesis techniques, confirming the usefulness of adversarial learning in this context. Our method is highly efficient for photo-sketch synthesis, with a structural similarity index (SSIM) of 0.65 on The Chinese University of Hong Kong dataset and 0.70 on the custom-generated dataset

EFFECT OF ARTHROSPIRA PLATENSIS AS A FOOD SUPPLEMENT AGAINST SODIUM FLUORIDEINDUCED INTOXICATION ON SOFT TISSUES OF MALE WISTAR ALBINO RATS

  Objective: The objective of the present study was to explore the in vitro antioxidant and effect of hydroalcoholic extract of Arthrospira platensis (ASP) against sodium fluoride (NaF)-induced toxic effects on soft tissues (heart, liver, and kidney).Methods: In vitro antioxidant activity was assessed using 1,1-diphenyl-2-picrylhydrazyl radical scavenging, 2,2'-azino-bis(3-ethylbenzothiazoline- 6-sulphonic acid) radical scavenging, metal chelation, total antioxidant and reducing power assays, and total flavonoid and phenol content. In this study, 36 male Wistar albino rats were divided into six groups of six animals each. Animals were served as Group I - normal control, Group II - toxic control, and Groups III, IV, and V - treatment groups, which received hydroalcoholic extract of ASP at doses of 100, 200, and 400 mg/kg body weight (p.o), respectively. Group VI served as plant control received hydroalcoholic extract of ASP at a dose of 400 mg/kg body weight (p.o). All groups except Groups I and VI received NaF (100 ppm) through drinking water for 30 days.Results: Results showed that intoxication of NaF caused significant elevation of serum biomarkers of the heart, liver, and kidney and altered tissue oxidative stress markers' levels. Administration of hydroalcoholic extract of ASP significantly normalized elevated serum levels of heart (p<0.001), liver (p<0.001, p<0.05), and kidney biomarkers (p<0.001). Decrease in lipid peroxidation and increase in reduced glutathione and catalase enzyme levels in a dose-dependent manner were observed in soft tissues (p<0.001, p<0.01, and p<0.05).Conclusion: The study revealed that ASP has good antioxidant and mitigative action against NaF intoxication on soft tissues

CORROSION INHIBITION PROPERTY OF EXPIRED FLUOXYMESTERONE DRUG ON THE ALUMINUM (AL) SURFACE IN 3 % NaCl SOLUTION

Objective: Aluminum (Al) corrosion in the NaCl solution is an example of dissolution in the neutral medium. The ongoing corrosion research efforts to produce the eco-friendly corrosion inhibitors to protect the aluminum metal from the corrosive solution. Methods: Herein, mass loss and atomic absorption spectroscopy (AAS) techniques were conducted to explain the adsorption property of expired Fluoxymesterone drug on the Al surface in the 3 % NaCl solution. Results: All results show that the expired Fluoxymesterone drug molecules generate a stable invisible layer through adsorption mechanism on the electrode surface. The corrosion inhibition behavior mainly depends on the concentration of the expired Fluoxymesterone drug and contact time at 313 K. Conclusion: The corrosion inhibition property is due to adsorption of electron-rich molecules on the Al surface in 3 % NaCl solution

Evaluation of the antimicrobial activity of heat-cure denture base resin materials incorporated with silver nanoparticles

Background: Poly (Methyl methacrylic acid) based materials are the most widely used for the fabrication of removable complete and partial dentures. Certain microorganisms adhere to the tissue surface of a denture base, especially on palatal region, often leading to Denture stomatitis. Numerous attempts were made to treat the denture stomatitis with various antifungal agents showing variable success rates. This may be attributed to the loss of the drug rapidly into the saliva, inhomogeneous distribution of the drug and the development of resistance to antifungal therapy. Aim: This study was done to evaluate the effect of incorporating various concentrations of silver nanoparticles on the antimicrobial activity of heat-cure denture base resin materials. Methods: Silver nanoparticles were incorporated at various concentrations (0.5, 1.0, 2.0 and 5.0 wt%) into three heat-cure denture base materials. A total of 300 disc-shaped specimens (10 × 2 mm) of heat-cure acrylic resin were made using compression molding technique which comprises 100 specimens with each denture base material. Fifty specimens from each denture base materials were allocated to each microorganism used in the study which comprises into five groups with ten specimens (n=10) for each concentration such as control, 0.5wt%, 1.0wt%, 2.0wt% and 5.0wt% concentrations of silver nanoparticles. Antimicrobial activity of control and modified specimens were evaluated using direct contact method against C albicans, and S Mutans by counting the number of colony-forming units. The data were subjected to One way ANOVA and Tukey HSD tests for statistical analyses. Results: Significant(P<0.05) differences were observed in the antimicrobial activity against C albicans and S Mutans between the control and modified groups of heat-cure denture base resin materials. Conclusion: Silver nanoparticles are the favourable materials to incorporate into denture base materials as they exhibit superior antimicrobial activity