Francesco Triggiano^#, Giusy Diella^#, Mara Lorusso, Paolo Veneziani^*, Marilena D’Ambrosio, Daniela Nesta, Luigi Santacroce^*

BIOCELL, Vol.49, No.2, pp. 199-220, 2025, DOI:10.32604/biocell.2025.059322 - 28 February 2025

Abstract The composition of the vaginal microbiota (VMB) influences the health of the female reproductive tract. Several studies have shown how the absence of lactobacilli causes an imbalance in the vaginal microbial community, favoring the development of infections. The present study aims to evaluate the relationship between the VMB and human papillomavirus (HPV) infection to clarify the role of the vaginal microbiota in the persistence and clearance of HPV. Many researchers have provided the scientific community with information on the composition of the microbiota and how it may also influence HPV infection and the development of… More >

Moien A. Omar^*

Energy Engineering, Vol.122, No.2, pp. 561-576, 2025, DOI:10.32604/ee.2025.059352 - 31 January 2025

Abstract This research investigates the design and optimization of a photovoltaic (PV) water pumping system to address seasonal water demands across five locations with varying elevation heads. The system draws water from a deep well with a static water level of 30 m and a dynamic level of 50 m, serving agricultural and livestock needs. The objective of this study is to accurately size a PV system that balances energy generation and demand while minimizing grid dependency. Meanwhile, the study presents a comprehensive methodology to calculate flow rates, pumping power, daily energy consumption, and system capacity.… More >

Rivky Afanda¹, Ahmad Zaki^1,2,*

Structural Durability & Health Monitoring, Vol.19, No.2, pp. 265-284, 2025, DOI:10.32604/sdhm.2024.053084 - 15 January 2025

Abstract Concrete is one of the most important elements in building construction. However, concrete used in construction is susceptible to damage due to corrosion. The influence of corrosive substances causes changes in the reinforcing steel and affects the strength of the structure. The repair method is one approach to overcome this problem. This research aims to determine the effect of grouting and jacketing repairs on corroded concrete. The concrete used has dimensions of 15 cm × 15 cm × 60 cm with planned corrosion variations of 50%, 60%, and 70%. The test objects were tested using… More >

Rahool Rai^1,2,3,*, Fareed Hussain Mangi⁴, Kashif Ahmed², Sudhakar Kumaramsay^1,5,6,*

Energy Engineering, Vol.122, No.1, pp. 153-166, 2025, DOI:10.32604/ee.2024.051789 - 27 December 2024

Abstract The growing need for sustainable energy solutions, driven by rising energy shortages, environmental concerns, and the depletion of conventional energy sources, has led to a significant focus on renewable energy. Solar energy, among the various renewable sources, is particularly appealing due to its abundant availability. However, the efficiency of commercial solar photovoltaic (PV) modules is hindered by several factors, notably their conversion efficiency, which averages around 19%. This efficiency can further decline to 10%–16% due to temperature increases during peak sunlight hours. This study investigates the cooling of PV modules by applying water to their… More >

Mohsen Mohamed Elsharkawy^1,*, Mari Sumayli², Faisal Ay Alzahrani³

Phyton-International Journal of Experimental Botany, Vol.93, No.12, pp. 3373-3385, 2024, DOI:10.32604/phyton.2024.058875 - 31 December 2024

Abstract Endophytes associated with plants are recognized as bio-reservoirs of natural products and denote a significant symbiotic interaction in nature. Endophytes penetrate the plant’s interior tissues without showing any indications of disease or obvious alterations. In this study, the potential of a novel and new isolated plant growth-stimulating fungus, Coniothyrium aleuritis, was evaluated against PVY (the pathogen potato virus Y) on potato plants. Many parameters, including disease severity, PVY titer, enzymatic profiling, defense-related biochemical marker (carotenoid), phenolic compounds, proline content, as well as growth and yield parameters, have been investigated to clarify the role of C. aleuritis isolate… More > Graphic Abstract

Zhaoqiang Wang¹, Fuyin Ni^2,*

Energy Engineering, Vol.121, No.12, pp. 3779-3799, 2024, DOI:10.32604/ee.2024.055535 - 22 November 2024

Abstract Under the partial shading conditions (PSC) of Photovoltaic (PV) modules in a PV hybrid system, the power output curve exhibits multiple peaks. This often causes traditional maximum power point tracking (MPPT) methods to fall into local optima and fail to find the global optimum. To address this issue, a composite MPPT algorithm is proposed. It combines the improved kepler optimization algorithm (IKOA) with the optimized variable-step perturb and observe (OIP&O). The update probabilities, planetary velocity and position step coefficients of IKOA are nonlinearly and adaptively optimized. This adaptation meets the varying needs of the initial… More >

Aws Al-Akam^1,*, Ahmed A. Abduljabbar², Ali Jaber Abdulhamed¹

Energy Engineering, Vol.121, No.12, pp. 3761-3777, 2024, DOI:10.32604/ee.2024.055198 - 22 November 2024

Abstract Photovoltaic (PV) panels are essential to the global transition towards sustainable energy, offering a clean, renewable source that reduces reliance on fossil fuels and mitigates climate change. High temperatures can significantly affect the performance of photovoltaic (PV) panels by reducing their efficiency and power output. This paper explores the consequential effect of various rooftop coverings on the thermal performance of photovoltaic (PV) panels. It investigates the relationship between the type of rooftop covering materials and the efficiency of PV panels, considering the thermal performance and its implications for enhancing their overall performance and sustainability. The… More >

Remon Lapisa^1,2, Anna Niska Fauza^1,*, Dieter Rahmadiawan^1,3, Krismadinata², Dori Yuvenda^1,2, Randi Purnama Putra^1,2, Waskito¹, Nandy Putra⁴, Hairul Abral⁵

Journal of Renewable Materials, Vol.12, No.9, pp. 1593-1603, 2024, DOI:10.32604/jrm.2024.053651 - 25 September 2024

Abstract Cellulose-based film has gained popularity as an alternative to synthetic polymers due to its outstanding properties. Among all types of cellulose materials available, cellulose nanofiber (CNF) has great potential to be utilized in a diverse range of applications, including as a film material. In this study, CNF biocomposite film was prepared by using polyvinyl alcohol (PVA) as a matrix and Uncaria gambir extract as a filler. This study aims to investigate the effect of Uncaria gambir extract on the optical properties and thermal stability of the produced film. The formation of the CNF biocomposite films was confirmed… More >

Amal El Berry, Marwa M. Ibrahim^*, A. A. Elfeky, Mohamed F. Nasr

Frontiers in Heat and Mass Transfer, Vol.22, No.4, pp. 1189-1207, 2024, DOI:10.32604/fhmt.2024.050684 - 30 August 2024

Abstract A photovoltaic (PV) inverter is a vital component of a photovoltaic (PV) solar system. Photovoltaic (PV) inverter failure can mean a solar system that is no longer functioning. When electronic devices such as photovoltaic (PV) inverter devices are subjected to vapor condensation, a risk could occur. Given the amount of moisture in the air, saturation occurs when the temperature drops to the dew point, and condensation may form on surfaces. Numerical simulation with “COMSOL Software” is important for obtaining knowledge relevant to preventing condensation by using two steps. At first, the assumption was that the… More >

Rittick Maity^1,2, Muhammad Khairul Imran bin Ahmad Shuhaimi³, Kumarasamy Sudhakar^3,4,5,*, Amir Abdul Razak³

Energy Engineering, Vol.121, No.9, pp. 2331-2361, 2024, DOI:10.32604/ee.2024.051576 - 19 August 2024

Abstract The United Nations’ Sustainable Development Goals (SDGs) highlight the importance of affordable and clean energy sources. Solar energy is a perfect example, being both renewable and abundant. Its popularity shows no signs of slowing down, with solar photovoltaic (PV) panels being the primary technology for converting sunlight into electricity. Advancements are continuously being made to ensure cost-effectiveness, high-performing cells, extended lifespans, and minimal maintenance requirements. This study focuses on identifying suitable locations for implementing solar PV systems at the University Malaysia Pahang Al Sultan Abdullah (UMPSA), Pekan campus including buildings, water bodies, and forest areas.… More > Graphic Abstract