Novel Wound Dressing Material: Utilising Bio-wastes Enhanced with Spider Web and Magnifera indica (L.) Leaves Extract| Chapter 3 | Current Research Progress in Physical Science Vol. 2

 

Despite significant advancements in wound therapy, the pursuit of innovative wound dressing materials remains fervent. This study aims to analyze the physiochemical characteristics and biological performance of a novel wound dressing material. The material was synthesized using Physiologically Clotted Fibrin (PCF) and Fish Scale Collagen (FSC), bolstered by the medicinal properties of Spider Web (SW) and Ethanolic Extract of Mangifera indica (L.) (EEMI). Infrared spectroscopic analysis confirmed the presence of Type I collagen, while surface morphology revealed a smooth, uniform, and porous structure, demonstrating biocompatibility. Water absorption and porosity measurements met required standards, while antibacterial assays revealed its combat against different bacteria. Additionally, ash tests underscored its eco-friendly nature. Biocompatibility assessments with human erythrocytes showed favourable results. Haemolysis assays at various concentrations and incubation times demonstrated the material's non-haemolytic behaviour. O all, the synthesized biomaterial presents as a promising wound dressing option, boasting efficacy, cost-effectiveness, and environmental sustainability.

 

Author(s) Details

Subbukutti Veerabahu

PG Department of Physics, Bhaktavatsalam Memorial College for Women, Chennai- 600 050, India.

Umadevi Kumba Janarthanan

PG & Research Department of Biochemistry, Bhaktavatsalam Memorial College for Women, Chennai-600 050, India.

 

Please see the link:- https://doi.org/10.9734/bpi/crpps/v2/581

 

Comparative Stiffness Analysis of Treated vs Untreated Meshed Coir Fiber Reinforced Cement Concrete | Chapter 7 | Science and Technology: Recent Updates and Future Prospects Vol. 9

 

This study investigates the impact of meshed coconut coir on the mechanical and durability properties of coir-reinforced cement concrete, aiming to control internal and external cracks. The meshed form of coir is known for its ability to mitigate shrinkage, enhancing both strength and durability. Phase I of the experimental investigation involved preparing 49 samples: 28 cubes (150x150x150mm) and 21 beam prisms (100x100x500mm). The tests included water absorption, porosity, sorption rate for physical properties, acid and alkaline attack resistance for durability, and compression and flexural bending strength for mechanical properties. The coir was tested in treated and untreated forms, with single and double layers in the concrete. Results indicated that while compressive and flexural bending strengths showed modest improvements, post-crack properties such as ductility, residual strength, and toughness significantly increased with higher fractions of meshed coir. Meshed coir reinforcement, used in layers, is proportioned between 5% to 25%. This natural fiber enhances material strength and durability, offering an eco-friendly alternative for construction and manufacturing applications. Its usage improves structural integrity while promoting sustainability. The findings suggest that meshed coconut coir can be a valuable addition to concrete, providing better crack control and improving post-crack behavior.

 

Author(s) Details

R. Parthasaarathi
Department of Civil Engineering, Hindusthan College of Engineering and Technology, Coimbatore, Tamil Nadu, India.

 

R. Sakthivel
Department of Civil Engineering, Sri Krishna Polytechnic College, Coimbatore, Tamil Nadu, India.

 

R. Senthil Kumar
Department of Civil Engineering, Hindusthan College of Engineering and Technology, Coimbatore, Tamil Nadu, India.

 

Please see the book here:- https://doi.org/10.9734/bpi/strufp/v9/1350

Doped Cerium Oxide: Effect of Sintering Temperature on Density, Structural and Morphological Properties of Mg, Sr Doped Ceria | Chapter 9 | Current Perspective to Physical Science Research Vol. 9

 

Doped Cerium oxide continued to be the candidate electrolyte material due to its stability and superior ionic conductivity compared to YSZ. Strontium doped and Magnesium doped Ceria solid solutions, Ce0.99Sr0.01O1.995 and Ce0.99Mg0.01O1.995 were synthesized by cost-effective solid-state reaction method and were sintered at 1200oC, 1300oC and 1400oC to investigate the effect of sintering temperature and doping on density, structural and morphological properties. The bulk densities were measured by the Archimedes method. X-ray diffraction (XRD) measurements indicate that the synthesized samples were in single-phase cubic fluorite structure (space group Fm3m). The surface morphology was determined using scanning electron microscopy (SEM), micrographs show spherical faceted grains, and the samples were crack-free, dense material with some pores on the surface which are inconsistent with density results. The chemical composition was analyzed by the EDS technique. It is observed that the density increases with increasing sintering temperature and with doping of strontium. The grain size depends on the sintering temperature and type of doping. The lattice parameter increases with sintering temperature and substitution of Sr in ceria. The Grain size of Sr-doped ceria decreases, whereas that of Mg-doped ceria increases. EDS spectra show that the samples are free of contaminants. The Ce_0.99Sr_0.01  O_1.995 shows a more open structure than the undoped ceria.

Author(s) Details:

Syed Ismail Ahmad,
General Sciences Department – Physics Division, Ibn Sina National College for Medical Studies, P.O. Box No. 31096, Jeddah 21418, Saudi Arabia.

 

Please see the link here: https://stm.bookpi.org/CPPSR-V9/article/view/14317

Mechanical Properties of Metal Rubber Inner Core of O-Type Seal with Large Ring-To-Diameter Ratio: A Recent Study| Chapter 1 | Research Aspects in Chemical and Materials Sciences Vol. 6

 In order to address the failings of common rubber seals, to a degree extreme- and depressed-temperature opposition, smooth stale, and inadequate load-posture act, O-type ore rubber seals accompanying a abundant ring-to-diameter percentage were constructed utilizing the cold stamping method and without a stain fortify line as raw material. Heat situation and porosity were examined for their belongings on the compression and pliable features of test samples. It was found during uniaxial condensation experiment that the test sample shown typical hysteresis characteristics, what the misfortune factor and strength wantonness of the sample accompanying the same capacity but different porosity increased accompanying the decline in porosity. The heat-medicated sample's loss determinant and strength disappearance were less than those of the not cooked sample. As a result, strength entertainment and change of loss determinant are two together raised with abating porosity. Four samples accompanying variable levels of porosity had their yield strength, greatest stiffness, and modulus of stretchiness evaluated. It was found that the three versification raised as porosity decreased. Additionally, as porosity curtailed, the generated power of the thermal situation red-pink. The three earlier parameters were all usually bred. This illustrated that metal elastic matters have good machinelike properties in extreme-hotness surroundings, effectively proposing the issue of common gaze' susceptibility to developing and breakdown under usual working environments. This has important manufacturing applications in two together belief and practice.

Author(s) Details:

Zhiying Ren,
School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, China and Engineering Research Center for Metal Rubber, Fuzhou University, Fuzhou 350116, China.

Linwei Shi,
School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, China and Engineering Research Center for Metal Rubber, Fuzhou University, Fuzhou 350116, China.

Zihao Huang,
School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, China and Engineering Research Center for Metal Rubber, Fuzhou University, Fuzhou 350116, China.

Yangyang Yang,
School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, China and Engineering Research Center for Metal Rubber, Fuzhou University, Fuzhou 350116, China.

Hongbai Bai,
School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, China and Engineering Research Center for Metal Rubber, Fuzhou University, Fuzhou 350116, China.

Please see the link here: https://stm.bookpi.org/RACMS-V6/article/view/9329

On Some Peculiarities of Interaction between Cement and Water| Chapter 10 | Current Overview on Science and Technology Research Vol. 8

 The paper argues the most complex and poorly intentional aspects of interplay of cement with water. Particular consideration is paid to the earliest and last stages of hydration and structure establishment of binding system. It is proved that the induction periods of hydration and thickening are a multistage process including a pre-inference period and an inference period as such. Its part is decisive in the rainmaking technique of new phase beginning and the transfer of signs of the future structure from the supersaturated adhesive to the cement stone. At the definitive stage of hardening, a blood vessel porous carcass is formed in the cement-water system. It is proved that the hardening process endure be regarded as a characteristic phase transposition: water being a dispersion medium in the blood vessel-porous building of the cement stone in the beginning, becomes a dispersed time. Particle dispersion and atom size allocation and pore size dispersion are of particular importance. It has existed shown that many facets of interaction of cement with water have prevalent nature accompanying the processes taking place in terrestrial and biological objects of unaffected systems. It form possible to grant the mentioned processes in the soul of convergence and divergence of sciences.

Author(s) Details:

Ju S. Sarkisov,
Tomsk State University of Architecture and Building, Tomsk, 634003, Russia.

N. P. Gorlenko,
Tomsk State University of Architecture and Building, Tomsk, 634003, Russia.

O. A. Zubkova,
Tomsk State University of Architecture and Building, Tomsk, 634003, Russia.

N. N. Debelova,
Tomsk State University of Architecture and Building, Tomsk, 634003, Russia.

T. S. Shepelenko,
Tomsk State University of Architecture and Building, Tomsk, 634003, Russia.

Please see the link here: https://stm.bookpi.org/COSTR-V8/article/view/8667

Study of the Resistance to Influence of Aggressive Liquids on Concrete with Lightweight Aggregate | Chapter 3 | Recent Trends in Chemical and Material Sciences Vol. 9

One of the key issues that might lessen a building's longevity is the corrosive exterior environment's effect on the concrete construction. The article examines the effects of component type on a few characteristics of lightweight concrete (LWC) that have been subjected to hostile liquids. When using lightweight concrete with porous aggregates, consideration should be given to the impact of a hostile environment. The publication contains the findings of testing on four light concretes that were subjected to hostile liquids and had varying water-cement ratios and compositions. Granulated expanded glass aggregate (GEGA) and granulated sintered ash aggregate (GAA) were used to create the concrete mixes, along with the mineral ingredient silica fly ash. LWC specimens underwent a year of in-lab curing before being exposed to hostile liquids for 60 days. Strong acid—HCl, at 1% and 2% concentrations; weak acid—CH3COOH, at 1% and 2% concentrations; and an aqueous salt solution of Na2SO4, at 1% and 2% concentrations—were the different conditions. After that, the structure was studied, and the impact of aggressive liquids on the LWC's compressive strength was looked at. Additionally, the weight of samples of lightweight concrete after corrosion was calculated. The test technique may be used to estimate the impact of aggressive liquids on the LWC more quickly, according to the findings of the test. LWC has strong resistance to hostile liquids when combined with GEGA and GAA aggregates. The research findings also show that HCl solution was the most aggressive, whilst Na2SO4 was the least aggressive. The rate of corrosion advancement increased with the destructive factor concentration. Concretes with aggregates consisting of sintered fly ash and foamed glass can be used in both conventional construction and in buildings with harsh environments.

Author(s) Details:

Marzena Kurpinska,

Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Narutowicza St. 11/12, 80-233 Gdansk, Poland.

Elzbieta Haustein,

Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Narutowicza St. 11/12, 80-233 Gdansk, Poland.

Filip Kurpinski,

Faculty of Electrical and Control Engineering, Gdansk University of Technology, Narutowicza St. 11/12, 80-233 Gdansk, Poland.

Please see the link here: https://stm.bookpi.org/RTCAMS-V9/article/view/7376

Analyze the Bio-Thermal Behavior of the Human Eye Based on the Heat Conduction Law with One Relaxation Time | Chapter 10 | New Approaches in Engineering Research Vol. 12

 The environment and physiological factors influence thermal processes in human tissues, such as the multi-layered human eye. This work developed a mathematical model of the human eye that considers variations in blood perfusion, porosity, evaporation rate, and ambient temperatures based on a non-Fourier heat conduction rule with correct boundary and interface conditions. The numerical solution was derived using a direct technique and MAPLE 17 software, with the results shown in the figures. The impact of various values of the relaxation times factors on the temperature value in each layer of the human eye was initially investigated. Blood perfusion, porosity, evaporation rate, duration, and ambient temperatures have all been discussed in relation to the thermal wave passing through the human eye layers; they all have a significant impact on the thermal wave going through the human eye layers. In terms of validity, the results of this model corresponded with those of other studies.

Author(S) Details

Hamdy M. Youssef
Department of Mathematics-Faculty of Education, Alexandria University, Alexandria, Egypt and Mechanical Engineering Department, College of Engineering and Islamic Architecture, Umm Al-Qura University, Makkah, 21955, KSA.

Alaa A. El-Bary
Basic and Applied Science Institute, Arab Academy for Science, Technology and Maritime Transport, P.O. Box 1029, Alexandria, Egypt.

View Book:- https://stm.bookpi.org/NAER-V12/article/view/3844

Analyze the Bio-Thermal Behavior of the Human Eye Based on the Heat Conduction Law with One Relaxation Time | Chapter 10 | New Approaches in Engineering Research Vol. 12

The environment and physiological factors influence thermal processes in human tissues, such as the multi-layered human eye. This work developed a mathematical model of the human eye that considers variations in blood perfusion, porosity, evaporation rate, and ambient temperatures based on a non-Fourier heat conduction rule with correct boundary and interface conditions. The numerical solution was derived using a direct technique and MAPLE 17 software, with the results shown in the figures. The impact of various values of the relaxation times factors on the temperature value in each layer of the human eye was initially investigated. Blood perfusion, porosity, evaporation rate, duration, and ambient temperatures have all been discussed in relation to the thermal wave passing through the human eye layers; they all have a significant impact on the thermal wave going through the human eye layers. In terms of validity, the results of this model corresponded with those of other studies.

Author (S) Details

Hamdy M. Youssef
Department of Mathematics-Faculty of Education, Alexandria University, Alexandria, Egypt and Mechanical Engineering Department, College of Engineering and Islamic Architecture, Umm Al-Qura University, Makkah, 21955, KSA.

Alaa A. El-Bary
Basic and Applied Science Institute, Arab Academy for Science, Technology and Maritime Transport, P.O. Box 1029, Alexandria, Egypt.

View Book :- https://stm.bookpi.org/NAER-V12/article/view/3844

Study of Wind Loads on Porous Hyperbolic Paraboloid Free Roofs | chapter 4 | New Approaches in Engineering Research Vol. 3

 Based on a wind tunnel experiment using solid and porous models, the goal of this study is to propose wind force coefficients for designing the main wind force resisting systems of porous hyperbolic paraboloid (HP) free roofs with square plan. The models have a thickness of only 1 mm. A number of small circular holes can be found in the porous model. The porosity has been increased from 0 (solid) to 0.4. The rise-to-span (or sag-to-span) ratio and slope are the geometric parameters under consideration. To determine the overall aerodynamic forces and moments operating on a model, a six-component force balance in a turbulent boundary layer is used. For diagonal wind directions, the design wind force coefficients, CNW* and CNL*, for the windward and leeward halves of the roof are proposed based on a combination of the lift and aerodynamic moment coefficients. For discussing the design wind loads, the focus is on the axial forces induced in the columns as the load effect, assuming that the roof is rigid and simply supported by four corner columns. It has been discovered that porosity significantly reduces wind loads on the roof. The design wind force coefficients for a porous roof can be calculated by multiplying the coefficients for a solid roof with the same configuration by a reduction factor.

Author (s) Details

Yasushi Uematsu
National Institute of Technology (KOSEN), Akita College, Akita 011-8511, Japan.

View Book :-  https://stm.bookpi.org/NAER-V3/article/view/1851