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397 articles for “Stability”
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Hybrid Organic–Inorganic Metal Halide Perovskite Solar Cells: A Comprehensive Review of Materials, Device Architectures, Stability, Hysteresis, and Commercialization Challenges
Abstract: Hybrid organic–inorganic metal halide perovskite solar cells (PSCs) have emerged as a major focus of photovoltaic research due to their remarkable increase in power conversion efficiency, reaching 28% within a short period. Perovskite materials exhibit several attractive properties, including long charge-carrier diffusion lengths, tunable band gaps, and excellent light absorption capability. In addition, their low-cost fabrication processes combined with high efficiency make PSCs strong competitors to conventional silicon-based solar cells. …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 12, Issue 2, 2026 · pp. 47–60 Read article
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Sustainable Energy Solutions: Enhancing the Efficacy and Stability of Lead Iodide Perovskite Solar Cells
Abstract: Lead iodide perovskite solar cells have emerged as a transformative technology in the field of photovoltaics, demonstrating remarkable power conversion efficiencies that rival traditional silicon- based solar cells. However, conacerns regarding their long-term stability and environmental impact pose significant challenges for their widespread adoption. This study investigates the current advancements in lead iodide perovskite solar cells, emphasizing strategies to enhance both their efficiency and stability. We explore innovative approaches, such …
Published in International Journal of Green Chemistry · Vol. 10, Issue 2, 2024 · pp. 1–8 Read article
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A comparative study on the use of conventional and osadebe mix designs in predicting the marshall stability of asphalt concrete
Abstract: Asphalt concrete is an important construction material all over the world with its design always following conventional procedure in developing countries such as Nigeria. This study was channelled towards using Osadebe’s theory in comparison to the conventional design procedure in the design of asphalt concrete providing a handy mathematical model for the determination of the stability of asphalt concrete given any components’ mix proportion and vice versa. Two designs were …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 6, Issue 1, 2020 · pp. 10–23 Read article
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Stabilization of Foundation Base Soil for Enhanced Bearing Capacity and Lateral Load Resistance
Abstract: Abstract The foundation of any structure plays a pivotal role in ensuring its stability and durability. The soil beneath the foundation must possess sufficient bearing capacity to support the structure's load, while also resisting the uplift pressure exerted by groundwater, especially in saturated conditions. Inadequate bearing capacity can lead to settlement or even structural failure. Additionally, the surrounding soil must be stabilized to prevent lateral movement and ensure the foundation's …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 10, Issue 2, 2024 · pp. 28–33 Read article
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Investigation on Stability Analysis of Polanga oil Methyl Ester
Abstract: Biodiesel is a renewable alternative fuel and consists of mono-alkyl esters of the fatty acids. One of the major technical problems associated with the biodiesel is its storage stability and susceptibility to oxidation because of its chemical nature. This nature of the biodiesel is due to unsaturated fatty acid chains in its molecular structure. Also, the presence of the double bond in the molecule of the biodiesel produces a high …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 2, Issue 1, 2016 · pp. 16–23 Read article
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Re-characterizing of Asphalt Concrete Mix Design Properties Blended with Waste Engine Oil Fractions for Heavy Traffic. (Case Study; Stability and Density)
Abstract: Waste and rising cost of importing admixtures during construction have influenced research into better ways of recycling local waste and reduce cost of importation of admixtures. Waste Engine Oil are checked as non-bituminous and can be incorporated into asphalt concrete mix design. Different researches have shown that some waste/by-products can be included as additive in hot-blend black-top cement to acquire specific beneficial properties. It is on this basis that this …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 8, Issue 1, 2022 · pp. 14–17 Read article
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Seepage and Slope Stability Analysis of Earthen Dam: A Case Study of Lebu Dam, Ethiopia
Abstract: Seepage and Slope stability are a matter of remarkable concern in the construction of earthen dams where the failure of slopes may incur a severe loss of life and damage to property. The most important factors that cause instability of slope and lead to failure are gravitational force, the force due to seepage of water, sudden lowering of water adjacent to a slope and force due to earthquake. This study …
Published in International Journal of Water Resources Engineering · Vol. 7, Issue 1, 2021 · pp. 52–70 Read article
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Voltage stability analysis in Power system using PMUs and UPFC
Abstract: Voltage instability has drawn the attention of both researchers and utilities due to the numerous system outages that have been linked to it over the past several decades in many places of universe. The improvement of synchrophasor techniques enables real-time monitoring and management of the network’s stability in voltage concern. This study recommends employing strategically placed synchrophasor measuring units (PMUs) to measure the margin of voltage-stability on-line and control it …
Published in International Journal of Electrical Power System and Technology · Vol. 9, Issue 2, 2023 · pp. 40–47 Read article
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Comparing Modeling, Stability Analysis and Simulation of AC and DC Microgrid Using Buck Converters
Abstract: Rapid reduction of non-renewable sources of energy is driving development toward sustainability. Increased integration of distributed generation units, including renewable sources of energy and energy storage systems (ESS), has simulated research in new techniques of power generation. At the same time, integration of these distributed generation units in the conventional power generation setup has become challenging. To counteract these challenges, AC microgrid (ACMG). The Concept of AC microgrid Introduced (ACMG). …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 8, Issue 2, 2022 · pp. 9–16 Read article
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Modification of Poly Vinyl alcohol by Grafting and Appropriate Blending for Higher Stability and Biomedical field Application
Abstract: PVA is a one of the most important vinyl polymer which is widely used in industrial applications. PVA polymer has excellent adhesive property, solubility in water and it is biodegradable. But when it is modified by appropriate crosslinking or grafting or blending techniques then its physical as well as stability is altered. When polymer is modified by blending with other materials then its degradability decreases but thermal stability increases. In …
Published in International Journal of Polymer Science and Engineering · Vol. 7, Issue 2, 2021 · pp. 27–33 Read article
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Enhancing Weak Grid Stability Using Grid-Forming BESS in Renewable-Dominated Power Systems
Abstract: The growing share of renewable energy sources in the energy mix, particularly photovoltaic (PV) installations, has resulted in the reduced grid inertia and system strength, thus presenting new challenges in terms of voltage and frequency stability in weak grid situations. Conventional grid-following (GFL) inverters rely on synchronizing with the grid and performing relatively poorly under specific situations such as disturbances, voltage sags, or islanding. It has been the aim of …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 12, Issue 2, 2026 Read article
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Optimizing Power Quality and System Efficiency in Wind Energy Conversion Systems for Enhanced Stability and Robust Integration with the Electrical Grid
Abstract: Wind energy is becoming one of the fastest growing renewable source in the world. It is clean and low cost, but when wind system connects to electrical grid there are many challenges like voltage fluctuation, harmonics, power loss and less stability. Power quality and efficiency problem make difficulty for strong integration with grid. For this reason, many research work is going on in area of condition monitoring, converter design, storage …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 12, Issue 2, 2026 Read article
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A Low-Power Chopper-Stabilized Amplifier forHigh-Resolution Biomedical Signal Acquisition
Abstract: Biomedical signal acquisition systems such as ECG, EEG, and EMG require analog front-end (AFE) circuits capable of amplifying extremely small, low-frequency physiological signals in the presence of noise, interference, and motion-induced artifacts. These signals usually fall within the sub-millivolt range and are highly susceptible to low-frequency noise and amplifier offset. Chopper-stabilized amplifiers offer a compelling solution by suppressing flicker noise (1/f noise) and minimizing input- referred offset, especially for low-frequency …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 12, Issue 1, 2026 · pp. 1–14 Read article
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Stability Indicating Spectrophotometric Methods for the Determination of Enrofloxacin in Pharmaceuticals
Abstract: Enrofloxacin (EFX) is a first fluoroquinolone veterinary antibiotic and used for the treatment of some urinary tract, respiratory tract, and skin infectious diseases in pets and livestock. Three simple, selective and stability indicating UV-spectrophotometric methods have been developed and validated for the assay of EFX in bulk drug and in its dosage forms. The first proposed method (method A) is based on the measurement of the absorbance of EFX in …
Published in International Journal of Analytical and Applied Chemistry · Vol. 2, Issue 2, 2016 · pp. 26–37 Read article
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Stabilization of Landslide Affected Soil Using Silica Fume Glass Fiber Powder and Sodium Silicate
Abstract: Highly swelling soils are present in many parts of Tamil Nadu and they are highly problematic in utilizing for the structural purpose. Numerous studies were conducted using several materials for stabilizing them; through literature study it’s found that a single material such as lime or cement is not suitable for stabilizing the concerned soil owing to several bottlenecks. In this study we had made an elaborate attempt to utilize manufactured …
Published in International Journal of Construction Engineering and Planning · Vol. 3, Issue 2, 2017 · pp. 9–17 Read article
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Tunnel Stability under Different Conditions: Analysis by Numerical and Empirical Modeling
Abstract: Abstract Stability of the tunnels under different geotechnical conditions can be effectively assessed using numerical modelling techniques. In this paper, the stability of tunnel was analyzed along with support requirement, based on stress distribution around tunnel, using the finite element modelling software – NISA. A case study was taken up of a tunnel proposed by Karnataka Netravari Nigam Limited near Siddapura, Udupi District, Karnataka, India. Results from finite element modeling …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 1, Issue 2, 2015 · pp. 1–13 Read article
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A New Model for Prediction of Wellbore Stability Using the Three Dimensional Hoek–Brown Failure Criterion
Abstract: Wellbore stability is one of the crucial issues in oil and gas industries. The issues related to instability of wells, impose significant unwanted costs on drilling operation.The objective of this paper is to present the 3D-wellbore stability prediction models for vertical wellbores. The three dimensional Hoek–Brown strength criterion developed by Zhang and Zhu conjunction with linear poroelastic constitutive model is utilized to develop the models. This models leads to easily …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 3, Issue 2, 2017 · pp. 10–15 Read article
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Improvement of Voltage Stability in Power System using STATCOM and SVC
Abstract: Modern power system is susceptible and widespread failures. With a rise in power demand, operation and planning of huge, interconnected power grid are getting more and more complex, so power system will subsided secure. In the operating environmental condition and conventional planning and operating methods can leave power grid exposed to instabilities. Voltage instability is one among the phenomena which have end in a major blackout. The abrupt development of …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 7, Issue 2, 2021 · pp. 20–33 Read article
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Electric Vehicle Integration to Stabilize the Grid by Improving Power Quality
Abstract: This paper presents power quality improvement in terms of voltage and frequency regulation for electric vehicles connected to the grid, with a focus on Vehicle-to-Grid (V2G) and Grid-to-Vehicle (G2V) action. Efficient management of power flow is required to regulate voltage and ensure reliability, which helps to enhance grid stability. The main aim is to optimize the power flow in both directions to improve grid stability and reduce losses. Here, a …
Published in International Journal of Analog Integrated Circuits · Vol. 12, Issue 2, 2026 Read article
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Effect of Different Mix Compositions on Compressed Stabilized Earth Block Strength
Abstract: Climate change and global warming are pressing issues exacerbated by the rapid expansion of theworld's population and its housing needs. Traditional construction materials contribute significantly toenvironmental degradation through the generation of dust, solid waste, hazardous gases, and highenergy consumption. In response, this study focuses on exploring environmentally sustainablealternatives, with a particular emphasis on compressed stabilized earth blocks (CSEB). CSEBs aremasonry units formed by compacting soil, stabilizers, and water. This research …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 10, Issue 1, 2024 · pp. 33–43 Read article