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286 articles for “tube”
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Optimizing Glass to Metal Composite Seal Performance: An integrated Approach with Artificial Neural Network, Multiple Regression, and Taguchi
Abstract: Composite materials, particularly glass to metal composites, are critical components in solar receiver tubes, where vacuum leakage can significantly compromise the efficiency of solar plants. This research addresses the technical barriers associated with the development of durable and high-quality glass to metal composite seals. We investigate the principles that can enhance the physical and chemical properties of these composite seals, focusing on the incorporation of TiO2 and MgO nanoparticles into …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 418–435 Read article
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Synthesis, Characterization, Antibacterial Evaluation and Study of Organic Separation Behavior for Five Membered Ring for Pyridine Derivatives
Abstract: Imidazoles can be prepared by condensation between amines and various aldehydes and ketones. Imidazole derivatives are important compounds due to their broad biological activity and pharmacological properties, such as antifungal, antioxidant, cytotoxic, anti-inflammatory, analgesic, anti-YFV (yellow fever virus), anti-tuberculosis, and antimicrobial activity. In recent years, many studies have been conducted on the preparation of biological imidazole derivatives, especially derivatives linked to heterogeneous rings containing nitrogen or any other donor atom. …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 16, Issue 3, 2025 · pp. 106–121 Read article
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Formation, Organic Investigation, Fluorescence Study of New Cyclic Derivatives of Thiophane-Triazole Compounds
Abstract: Azo compounds are used as intermediates in the preparation of many well-known and diverse organic derivatives. Cyclical or related azo derivatives, such as triazoles and thiophenes, possess useful applications in medicinal and pharmaceutical chemistry. Thiophene compounds and their derivatives have demonstrated a variety of biological activities, including antibacterial, antifungal, anti-tuberculosis, anti-inflammatory, analgesic, sedative, and hypnotic properties, immunosuppressive, and antihypertensive properties. Furthermore, thiophene derivatives can be used in the treatment of …
Published in Emerging Trends in Chemical Engineering · Vol. 12, Issue 3, 2025 · pp. 1–13 Read article
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Pneumonia Identification Using Explainable Artificial Intelligence
Abstract: Pneumonia, including tuberculosis (TB), remains one of the leading causes of death worldwide, especially in regions where access to healthcare is limited. Early and accurate diagnosis is critical for effective treatment and better patient outcomes, but traditional methods are time-consuming and require specialized expertise. This study explores the use of advanced deep learning models VGG16, VGG19, and ResNet50 to detect pneumonia and TB from chest X-ray images. By leveraging transfer …
Published in Journal of Advanced Database Management & Systems · Vol. 12, Issue 3, 2025 · pp. 01–11 Read article
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Host Invasion to Immune Evasion: Emerging Concepts in Pathogen Virulence Strategies
Abstract: Pathogens have evolved a wide repertoire of virulence strategies that allow them to invade host tissues, establish infection, and circumvent immune responses. From the initial steps of adhesion and colonization to complex molecular mimicry, antigenic variation, and immunomodulation, pathogens display remarkable adaptability. While traditional research has emphasized host cell entry and toxin production, emerging evidence highlights subtler and more dynamic strategies such as manipulation of host signaling pathways, subversion of …
Published in International Journal of Pathogens · Vol. 2, Issue 2, 2025 Read article
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Host-Pathogen Coevolution: Implications for Immune Evasion and Pathogen Fitness
Abstract: The interaction between hosts and pathogens represents a continuous evolutionary struggle, shaping both microbial virulence and host immunity. Pathogens employ diverse strategies to evade immune surveillance, ranging from antigenic variation and molecular mimicry to hijacking of host immune checkpoints. Simultaneously, hosts refine innate and adaptive immune mechanisms to counteract infection and limit damage. This reciprocal adaptation, known as host–pathogen coevolution, influences pathogen persistence, transmission, and fitness, while also sculpting immune …
Published in International Journal of Pathogens · Vol. 3, Issue 1, 2026 · pp. 6–10 Read article
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Solar Thermal Energy Utilization: Design Innovations and Performance Enhancement Techniques
Abstract: The utilization of solar thermal energy has become increasingly significant in the pursuit of sustainable and low-carbon energy solutions. Unlike photovoltaic technologies that directly convert sunlight into electricity, solar thermal systems focus on harnessing solar radiation to generate heat, which can then be applied to diverse sectors such as water heating, space conditioning, industrial process heating, and power generation. In recent years, substantial research efforts have been directed toward enhancing …
Published in International Journal of Energy and Thermal Applications · Vol. 3, Issue 2, 2025 · pp. 1–5 Read article
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Mid-Year Epidemiological Profile of COVID-19 Posi ve Cases in Rajasthan, India
Abstract: Background: COVID-19, caused by SARS-CoV-2, has posed persistent public health challenges globally since its emergence in late 2019. India, through enhanced surveillance and vaccina on, has seen a progressive decline in case burden. Despite improvements, localized surges and emerging variants necessitate con nuous monitoring. Rajasthan, with its urban-rural health dispari es, experienced a modest resurgence of cases in early 2025, raising concerns about exis ng immunity gaps and health system …
Published in Research and Reviews : A Journal of Immunology · Vol. 15, Issue 3, 2025 Read article
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TPLO-M: A Dual-Purpose Solution for CCL and MPL in Dogs
Abstract: Cranial Cruciate Ligament (CCL) rupture and Medial Patellar Luxation (MPL) are common orthopedic conditions affecting the canine stifle joint, particularly in small and toy breeds and larger athletic dogs. When these conditions occur together, they pose a significant surgical challenge due to the combined biomechanical abnormalities. Traditional surgical approaches, such as Tibial Plateau Leveling Osteotomy (TPLO) for CCL insufficiency and corrective procedures for MPL, do not adequately address both conditions …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 14, Issue 3, 2024 · pp. 1–10 Read article
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Understanding Airborne Pathogens: Pathways, Risks, and Control Strategies
Abstract: Airborne transmission is the transfer of germs through the air, mostly by respiratory droplets and aerosols that come out when you cough, sneeze, talk, or breathe. These particles can stay in the air for a long time and move a long way, especially in small or poorly ventilated places. Mycobacterium tuberculosis, measles virus, varicella-zoster virus (chickenpox), influenza virus, and more recently, SARS-CoV-2 are all infections that can be spread through …
Published in International Journal of Pathogens · Vol. 2, Issue 2, 2025 Read article
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5-Methyl-2-phenyl-2,4-dihydro-3H-pyrazol-4-one: Synthesis and Reactions
Abstract: The presence of the five-member pyrazole nucleus in different structures leads to a large diversity in its applications. In almost every research study, the pyrazole derivatives biological importance faces a competitive challenge in areas of technology, medicine and agriculture. This reflects the description of these derivatives as antibacterial, antifungal, anticancer, antidepressant, anti-inflammatory, anti-tuberculosis, antioxidant as well as antiviral agents. In our review, we will discuss and show the highlights of …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 16, Issue 3, 2025 · pp. 76–87 Read article
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Hierarchical Computational Modeling of Physical Structure Across Quark, Nuclear, and Atomic Scales
Abstract: We present a modular, multi-scale computational framework that integrates physical modeling and visualization across quark, nuclear, and atomic scales within a unified pipeline. Developed to address the traditional fragmentation between sub-nucleonic, nuclear, and electronic representations, the system provides a continuous data flow and visualization bridge spanning from femtometers to ångströms. The framework consists of three primary modules: a particle-level module illustrating nucleons as confined quark-triplets with effective flux-tube geometries; a …
Published in Research & Reviews : Journal of Physics · Vol. 15, Issue 1, 2026 · pp. 38–53 Read article
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Vaccines Through Time: Conventional Foundations and Next-Gen Innovations–Part 1
Abstract: Vaccination serves as a critical pillar of global public health, markedly decreasing infection rates and associated mortality. Traditional vaccine platforms such as live attenuated, inactivated, toxoid, and subunit vaccines have demonstrated effectiveness against pathogens like Mycobacterium tuberculosis and Plasmodium spp., yet they are constrained by antigenic variability, limited immune persistence, and complex production processes. Breakthroughs in synthetic biology, structural antigen design, and computational vaccinology have driven the development of advanced …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 16, Issue 1, 2026 · pp. 53–70 Read article
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Histoplasma capsulatum (Dimorphic Fungus) in India: Biological Features, Virulence Mechanisms, and Clinical Implications of Histoplasmosis.
Abstract: Histoplasmosis is a systemic mycosis caused by the thermally dimorphic fungus Histoplasma capsulatum. Infection is acquired primarily by inhalation of infectious microconidia and may range from asymptomatic infection to severe disseminated disease. Although histoplasmosis has classically been associated with the river valleys of the Americas, it is being increasingly recognized in Asia, including India, where it frequently mimics tuberculosis, leishmaniasis, lymphoma, and leprosy, resulting in delayed diagnosis and treatment. Cutaneous …
Published in International Journal of Fungi · Vol. 3, Issue 1, 2026 · pp. 38–48 Read article
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Thermal Stability and Sound Absorption Behaviour of Sisal–Luffa Hybrid Epoxy Composites for Automotive Interior Applications
Abstract: Natural fiber–reinforced composites are gaining popularity as substitutes for synthetic fiber composites because of their environmental and sustainability advantages. Their adoption is steadily increasing across various industries. In automotive interior applications, these materials must exhibit strong thermal stability and efficient sound absorption to meet performance requirements. In this experiment, composites were made by mixing sisal and luffa fibers with epoxy resin. The hand lay-up method was used for fabrication. Two …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 144–157 Read article
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A Systematic Review on Factors Contributing to Infertility
Abstract: Infertility is a multifactorial reproductive health condition affecting approximately 10–15% of couples worldwide and continues to represent a major clinical and social challenge. Despite substantial advances in assisted reproductive technologies, diagnostic methods, and therapeutic interventions, many couples still face difficulties in achieving pregnancy. The impact of infertility extends beyond physical health, often leading to emotional distress, social pressure, and financial burdens, especially in societies where parenthood is highly valued. Consequently, …
Published in International Journal of Tropical Medicines · Vol. 3, Issue 1, 2026 · pp. 31–35 Read article
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Influence of Epoxy-Based Thermally Conductive Polymer Composites on the Thermo-Hydraulic Performance of Finned Helical Coil Heat Exchangers Across Flow Regimes
Abstract: The use of polymer composites in heat exchanger applications has gained increasing attention due to their advantages in weight reduction, corrosion resistance, and design flexibility. However, their relatively low thermal conductivity compared to conventional metallic materials remains a key limitation for efficient heat transfer. In this study, the thermo-hydraulic performance of a finned helical coil heat exchanger is investigated with particular focus on epoxy-based polymer composites reinforced with thermally conductive …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 586–602 Read article
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Nursing Bed with Integrated Toilet
Abstract: The nursing bed with integrated toilet is an new innovation in the healthcare sector .Our idea focuses on the patients who are unable to walk and are bedridden due to the some illness or injuries .There have been made many attempts to develop a better toileting aid for bedridden patients to replace conventional incontinence products such as absorbent products, indwelling urinary catheters, and bedpans, although without much success. Automatic urine …
Published in Journal of Mechatronics and Automation · Vol. 13, Issue 1, 2026 · pp. 66–73 Read article
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A Clinical Insight Into Management of Left Sided Hydrocele through Homoeopathy: A Case Report
Abstract: Hydrocele is a common condition in pediatric age groups, characterized by the accumulation of serous fluid within the tunica vaginalis surrounding the testis. While many cases resolve spontaneously within the first one to two years of life, persistent hydrocele beyond this period is generally managed surgically. The present case highlights the role of individualized homoeopathic treatment as a conservative approach in such conditions. A 2-year-old male child presented with left-sided …
Published in Research & Reviews : A Journal of Unani, Siddha and Homeopathy · Vol. 13, Issue 2, 2026 · pp. 1–11 Read article
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Infectious illnesses in areas of violence and among refugees
Abstract: Infectious illnesses are a huge and ongoing hazard in conflict zones and among refugee populations. This is because frail health systems, population relocation, and poor living conditions all come together to make transmission risks higher. Armed conflict undermines vital public health infrastructure, such as vaccination programs, disease surveillance, water and sanitation systems, and access to medical care, resulting in the resurgence and proliferation of avoidable and treatable illnesses. Refugee camps …
Published in International Journal of Tropical Medicines · Vol. 3, Issue 1, 2026 · pp. 36–40 Read article