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361 articles for “contrast”
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A Comprehensive Review on Nanostructured Polymer Composites for CT Imaging Contrast Enhancement in Brain Tumor Diagnosis
Abstract: The detection and characterization of brain tumors require high-resolution and non-invasive imaging modalities that have the ability of differentiating tumorous tissues and healthy brain tissues. Computed tomography (CT) can be included in this number because, in addition to providing speedy scans and penetration to deep tissue, the diagnostic capability in soft tissue organ such as the brain is poor despite low natural contrast. The review is dedicated to the emerging …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 148–162 Read article
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Revealing the Hemodynamic Orchestra: Contrasting Analysis of Blood Flow Patterns in a Bifurcated Carotid Artery
Abstract: Understanding blood flow patterns in the carotid artery (CA) is crucial for detecting cardiovascular diseases. Computational fluid dynamics simulations compared non-Newtonian (non-Newt) and Newtonian (Newt) models under pulsatile and laminar flow. CA geometry was accurately designed using ANSYS Space Claim & Fusion360, and simulations were run in ANSYS Fluent. Discrepancies between non-Newt and Newt models were found, especially in bifurcation's distal regions prone to plaque. Pressure ranged from 27.870 Pa …
Published in Journal of Polymer & Composites · Vol. 11, Issue 13, 2023 · pp. 229–247 Read article
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Unlocking Wellness by Ayurveda with Contrasting Modern Medicine
Abstract: In the modern world, we are so subordinate to drugs that we are unable to imagine a single day without them. Like smartphones, we are also addicted to pharmaceuticals, which significantly impact our lives. Constant utilization of medicine makes resistance and dependence on the medicament. It moreover has diverse side effects that cause various health hazards. As people become aware of this, the utilization of herbal remedies has expanded worldwide. …
Published in Research and Reviews: A Journal of Medicine · Vol. 14, Issue 3, 2024 · pp. 16–20 Read article
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Review on CBIR Image Based on Colour, Texture and Shape Features of Biomedical Image Applications
Abstract: This study seeks to understand how different image enhancing methods affect the sensitivity of contrast-based textural measures and morphological traits derived from high-resolution satellite data (three-band SPOT-5). The built-up/non-built-up detection framework is the backbone of every biomedical application. Using supervised learning while working with a low-resolution reference layer reduces uncertainty and boosts the reference layer's quality in a roundabout way. The image's histogram is recalculated based on contrast in order …
Published in Journal of Image Processing & Pattern Recognition Progress · Vol. 11, Issue 1, 2024 · pp. 8–13 Read article
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Gold Nanoparticle Size, Biodistribution, and Toxicity: Insights from DualEnergy CT
Abstract: Dual-energy and spectral computed tomography (CT) have emerged as powerful platforms for noninvasive, quantitative mapping of nanoparticle biodistribution in vivo. By exploiting the energy-dependent attenuation profiles of high-atomic-number (high-Z) materials, these systems enable material decomposition and element-specific imaging, thereby distinguishing nanoparticle signals from those of soft tissues and conventional iodinated contrast agents. Photon-counting spectral CT further enhances this capability by binning individual photons into multiple energy channels, improving spatial resolution, …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 28, Issue 2, 2025 · pp. 22–34 Read article
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An Overview to Enhance Visual Cryptography Techniques
Abstract: A unique type of cryptographic method called "visual cryptography" allows for decryption to be carried out using only the human eye. Generally speaking, for some crucial security, in modern society, processing and protecting information from attacks is becoming a very important aspect for people. Researchers are developing new ways to protect information from unwanted intrusion. Numerous encryption methods have been discovered, with many more yet to be discovered. Visual ciphers …
Published in Journal of Computer Technology & Applications · Vol. 14, Issue 1, 2023 · pp. 17–23 Read article
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Evaluating The Durability and Environmental Sustainability of Hybrid Natural - Synthetic Fiber Composites
Abstract: This study examines the characteristics of hybrid composites composed of natural fibers (such as jute, hemp, or kenaf) and synthetic fibers (such as glass or carbon) integrated within polymer matrices. The hybridization method seeks to enhance the advantages of both fiber types, hence augmenting overall performance relative to single-reinforced composites. Mechanical properties like tensile strength, flexural strength, impact resistance and hardness were evaluated through experimental tests. The results demonstrate that …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 93–102 Read article
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Contract and Feature Extraction of CBIR Method Using Soft Computing Techniques in Machine Learning
Abstract: There is expansion in size of picture securing and information capacity strategies and furthermore there is expansion in data set of pictures. Prior text-based depiction and manual comment of pictures were utilized for recovery of pictures that was a tedious errand. The need of great importance is to deal with the huge assortments through proficient frameworks called content-based picture recovery frameworks. For this situation visual items in the picture like …
Published in Journal of Instrumentation Technology & Innovations · Vol. 12, Issue 1, 2022 · pp. 17–26 Read article
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Performance Analysis and study of losses in GaAs Multi Junction Solar cells using Current and Voltage Measurements
Abstract: Cross section coordinated, triple-intersection sunlight based cells with strain repaid quantum spots (QDs) in the GaAs center cell were developed by Metal-Organic Chemical Vapor Deposition (MOCVD). Structures with various quantities of QD layers are contrasted with gauge structures with no QDs. Quantum proficiency and light I-V estimations show an expansion in hamper thickness and debasement of the open circuit voltage for QD sun powered cells. The QDs don't work on …
Published in Journal of VLSI Design Tools and Technology · Vol. 12, Issue 1, 2022 · pp. 1–7 Read article
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Enhancement of Proton Density Weighted Magnetic Resonance Images using Singular Value Decomposition in Wavelet Domain
Abstract: Image enhancement techniques for low contrast medical images using Singular Value Decomposition (SVD) in Discrete Wavelet Transform domain (SVD-DWT) are proposed in the literature. However, shift sensitivity, poor directionality and a lack of phase information are the primary drawbacks of the discrete wavelet transform. This work introduces a novel method of image enhancement (SVD-SWT) using SVD in Stationary Wavelet Transform (SWT) to improve the contrast of Proton Density weighted Magnetic …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 10, Issue 2, 2022 · pp. 10–21 Read article
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Description & Prevention of Omicron
Abstract: November 9, 2021, Botswana becomes the first country to recognise it (Nov 11 2021). The new variant (B.1.529) has been represented in 77 countries. Omicron presents 32 changes in spike protein Scribd, restricting the point of interaction with the ACE2 receptor protein. Computational shows and components’ recreation has been applied to investigate the collaboration between the SARS-CoV-2 RBD and the ACE2 receptor. The receptor-binding domain (RBD), which more barely joins …
Published in Research & Reviews: A Journal of Pharmacognosy Read article
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Strategic Enhancement of Composite Strength Explored Through Comprehensive Integration of Flax Fiber and Cenosphere in Epoxy Resin Matrices
Abstract: The Current research delves into the mechanical attributes of composite specimens, integrating flax fiber and cenosphere fillers within an epoxy resin matrix catalyzed by K-6 hardener. Executing a meticulous approach involving a vacuum bagging method and a specific formulation of 10 wt.% cenosphere, 50% epoxy resin, and 40% flax fibers, the study rigorously scrutinized tensile and flexural strengths. Notably, the first specimen exhibited a peak tensile strength of 94.329 MPa, …
Published in Journal of Polymer & Composites · Vol. 11, Issue 13, 2023 · pp. 199–217 Read article
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Coming of Age in Nature: An Ecocritical Reading of Ruskin Bond’s The Room on the Roof
Abstract: This research paper explores the human-nature relationship in Ruskin Bond's classic novel, "The Room on the Roof," through the lens of ecocriticism. Ecocriticism, a critical theory examining literature's portrayal of the environment, provides a valuable framework for analyzing the novel's themes of escape, self-discovery, and the impact of human actions on the natural world. The paper analyzes the novel, demonstrating how Bond utilizes ecocriticism to depict the transformative power of …
Published in International Journal of Trends in Humanities · Vol. 1, Issue 1, 2024 · pp. 13–17 Read article
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Solar and Screw Hydropower Turbine for Power Generation – A Comprehensive Study
Abstract: Micro-hydro power plants rely on efficient screw pump systems to harness the kinetic energy of flowing watercourses for electricity generation. Landustrie, with nearly a century of expertise in screw pump technology, has been pivotal in advancing the field. This paper examines the evolution of screw pump technology within micro-hydro power generation, highlighting Landustrie's contributions and the introduction of automated screw pump selection software. In contrast, screw hydropower turbines use the …
Published in Journal of Thermal Engineering and Applications · Vol. 11, Issue 1, 2024 · pp. 14–19 Read article
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Fuzzy C-Means Clustering for Effective Segmentation and Classification of Brain Tumors in MRI Scans
Abstract: The paper discusses the importance of detecting and classifying brain tumors via MRI for effective treatment. It proposes a framework utilizing the Fuzzy C-means clustering algorithm for segmentation, demonstrating improved performance through real dataset validation. The model is trained on a large, annotated MRI dataset to identify and classify different tumor types, enabling machine learning-based classification into benign and malignant tumors. The MATLAB-based solution automates brain tumor feature extraction, aiding …
Published in Journal of Microwave Engineering and Technologies · Vol. 11, Issue 2, 2024 · pp. 23–28 Read article
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U-Net Based Approach for Automated Brain Tumor Classification
Abstract: Brain tumor detection and identification play vital roles in diagnostic procedures in the field of medicine, with the conventional analysis of MRI images requiring a lot of time and also subject to variability. The proposed study involves the use of a CNN-U-Net based approach for brain tumor detection and identification automatically. The study uses a database of 3,064 contrast-enhanced T1-weighted MRI images from 233 patients with the tumors of meningioma, …
Published in Research and Reviews: Journal of Oncology and Hematology · Vol. 14, Issue 2, 2025 Read article
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A Detailed Review on Traditional v/s Modern Education: Navigating the Path to Learning
Abstract: This abstract compares traditional and modern education methodologies, analyzing their respective approaches, strengths, and weaknesses. Traditional education, characterized by face-to-face instruction, textbooks, and standardized testing, emphasizes rote learning and adherence to established curriculum. In contrast, modern education integrates technology, interactive learning tools, and personalized approaches to foster critical thinking, creativity, and adaptability. While traditional education provides a structured framework and cultural continuity, modern education addresses diverse learning styles and prepares …
Published in International Journal of Education Sciences · Vol. 2, Issue 2, 2025 · pp. 67–74 Read article
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Neuroinflammation Is Aggravated by the Aqueous Extract of Myrmecodia Platytyrea Tuber
Abstract: Myrmecodia platytyrea, commonly known as the ant plant, is a medicinal epiphyte traditionally used in Southeast Asia for its purported health benefits, including anti-inflammatory, antioxidant, antimicrobial, and anticancer activities. Its tuber contains abundant secondary metabolites, including flavonoids, tannins, phenolic compounds, and saponins. While these phytochemicals are generally associated with therapeutic effects, the biological activity of Myrmecodia extracts varies depending on the type of extract, dosage, and route of administration. In …
Published in International Journal of Brain Sciences · Vol. 3, Issue 1, 2026 · pp. 5–14 Read article
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Activating agents control the morphology of activated carbon materials from biomass
Abstract: The stems of the plant Calotropis gigantea (Cg) were were used as a feedstock for the activated carbon material. Carbonate (K 2 CO 3 ) and oxalate (Na 2 C 2 O 4 ) were used as chemical activating agents. The morphological features of the activated carbon materials were characterized using FEG-SEM. The morphology of the activated carbon materials is found to depend on the type of activating agent used. …
Published in Journal of Catalyst & Catalysis · Vol. 12, Issue 1, 2025 · pp. 27–38 Read article
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Steady State Visual Evoked Potential Based Brain Computer Interface System
Abstract: The steady-state visual evoked potential (SSVEP) is a brain response that can be measured by an electroencephalogram (EEG) when a subject looks at periodic luminance- or contrast-modulated stimuli. In this study, flickering Light Emitting Diode (LED) is used as visual stimulation. Mostly, brain response is recorded using an electroencephalograph (EEG) and recorded in the brain's occipital lobe which is associated with human vision. The study encompasses key stages, beginning with …
Published in Current Trends in Signal Processing · Vol. 13, Issue 3, 2023 · pp. 35–43 Read article