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393 articles for “contact”
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A Review of Toxicity, Genotoxicity and Teratogenicity of Formaldehyde
Abstract: Formaldehyde (FA) is important chemical found outdoor and indoor source, it is commonly used in the production of industrial, laboratories and household fule. Most FA exposure occurs by inhalation or by skin or eye contact. It is rapidly absorbed by lungs, gastrointestinal tract and skin. FA easily reacts with amino group in molecular compounds such as proteins and nucleic acid; these reactions caused alterations in tissues and leading to toxicity …
Published in Research and Reviews: A Journal of Toxicology · Vol. 10, Issue 3, 2020 · pp. 9–18 Read article
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Wudu (Ablution): An Effective Preventive Measure against Many Infectious Diseases
Abstract: Wudu (Ablution) is an Arabic word which means the specific action of washing certain body parts. In these body parts, hands, mouth, nostrils, face, arms, and feet included. In religion Islam, wudu has great importance. Muslims are required to perform wudu before offering the prayer five times a day. As we all know pathogens can enter in our body through mouth, nose and eyes directly or indirectly from our contaminated …
Published in Research & Reviews : A Journal of Unani, Siddha and Homeopathy · Vol. 7, Issue 3, 2020 · pp. 28–31 Read article
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Significance of Co-efficient Factors in Human Life
Abstract: In the Unani system of medicine, the health and the disease are the major concern to a physician. If health is there then all the measures are to be taken to keep it in healthy state, similarly if the disease has occurred then all possible measures are to be taken to revert that condition to achieve health. There are various factors responsible for any of the above conditions, some are …
Published in Research & Reviews : A Journal of Unani, Siddha and Homeopathy · Vol. 9, Issue 2, 2022 · pp. 11–15 Read article
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Urticaria Uncovered: Understanding The Condition And Optimizing Its Management
Abstract: Urticaria, also known as hives, is a skin condition characterized by pale red, raised, and itchy bumps. The name "urticaria" is derived from the Latin words "urtica" and "urere," which mean nettle and to burn, respectively. This skin rash manifests as pink to flesh-colored plaques that are non-pitting and edematous. The primary cause of urticaria is believed to be a condition known as "Fasad e Dam," which refers to blood …
Published in Research & Reviews : A Journal of Unani, Siddha and Homeopathy · Vol. 10, Issue 3, 2023 · pp. 8–15 Read article
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Thermoelectric Waste Heat Recovery from Industrial Exhaust Systems Using Nanostructured Hybrid Heat Exchangers
Abstract: The efficient utilization of industrial waste heat has become a critical strategy for improving energy efficiency, reducing fossil fuel consumption, and minimizing greenhouse gas emissions in modern manufacturing sectors. This study proposes a thermoelectric waste heat recovery (TWHR) system integrated with a nanostructured hybrid heat exchanger to enhance heat transfer performance and maximize electrical power generation from high-temperature industrial exhaust streams. The proposed system employs nanostructured surface modifications combined with …
Published in Journal of Thermal Engineering and Applications · Vol. 13, Issue 2, 2026 Read article
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Food Packaging Chemicals and Human Health: Molecular Toxicity, Exposure Pathways, and Regulatory Perspectives
Abstract: Food packaging plays a vital role in preserving food quality, extending shelf life, and ensuring safe transportation. However, increasing evidence indicates that chemicals from packaging materials can migrate into food during processing, storage, and consumption, resulting in chronic human exposure. Several food packaging chemicals, including bisphenols, phthalates, per- and polyfluoroalkyl substances (PFAS), styrene, heavy metals, and non-intentionally added substances (NIAS), have emerged as important xenobiotics due to their potential adverse …
Published in Research and Reviews: A Journal of Toxicology · Vol. 16, Issue 2, 2026 Read article
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Development of Smart Cooling Optimization System for CNC Machining Applications
Abstract: In modern manufacturing industries, achieving high machining accuracy, improved surface finish, and extended tool life remains a significant challenge, particularly during the machining of hard materials where excessive heat generation at the tool–workpiece interface is inevitable. Conventional coolant systems often suffer from limitations such as manual control, inconsistent flow rates, and inefficient coolant usage, which negatively impact productivity and environmental sustainability. This paper presents the design and development of an …
Published in Journal of Mechatronics and Automation · Vol. 13, Issue 2, 2026 · pp. 1–13 Read article
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Smart Drainage Cleaning System: A Technological Intervention for Occupational Health and Urban Sanitation
Abstract: Manual drainage maintenance in urban environments remains a hazardous task, exposing sanitation workers to toxic gases, infections, and life-threatening accidents. This paper presents the development of an automated 12V Smart Drainage Cleaning System designed to eliminate manual scavenging and enhance cleaning efficiency. The robotic model operates on a 12V DC power supply, integrating an ultrasonic sensor for real time obstacle detection and automated navigation within narrow drainage pathways. The core …
Published in Journal of Industrial Safety Engineering · Vol. 13, Issue 2, 2026 · pp. 16–27 Read article
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Conductive Polymer Nanocomposites for Wearable Cardiac Monitoring Devices
Abstract: Wearable cardiac monitoring devices are increasingly important tools for non-invasive, continuous assessment of cardiac health. Their growth is driven by increases in the incidence of arrhythmias and by a great demand for remote monitoring. This is changing with the use of conductive polymer nanocomposites (CPNCs). They combine physical properties of mechanical flexibility, high electrical conductivity, and good biocompatibility resulting in high precision, and comfortable sensing. CPNCs combine conductive polymers with …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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IoT-Based Smart Solar Wireless Electric Vehicle Charging System with Integrated Safety Monitoring
Abstract: The rapid development of Electric Vehicles (EVs) has given a boost to the need to provide an efficient, reliable, and sustainable Electric Vehicle Charging Station. Conventional Electric Vehicle Charging Systems use grid power as their primary source, which is generally non-renewable. This might reduce the advantages of electric vehicles for the environment. Moreover, conventional Electric Vehicle Charging Systems may put additional pressure on power distribution networks. This research suggests an …
Published in International Journal of Electrical Machine Analysis and Design · Vol. 4, Issue 2, 2026 Read article
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Iris-Based Railway Systems: Advancements in Ticketing and Passenger Verification
Abstract: As railway transportation continues to expand and modernize, ensuring the safety and security of passengers, staff, and infrastructure has become a major priority. Traditional security methods, including manual identity verification, paper-based ticketing, and conventional access control systems, are often limited in their ability to prevent unauthorized access, identity fraud, and operational delays. To address these challenges, this paper explores the integration of biometric authentication technologies into railway systems as a …
Published in Journal of Image Processing & Pattern Recognition Progress · Vol. 13, Issue 2, 2026 Read article
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Analytical Examination on the Characterization of Wood Materials for Biohydrogen Production
Abstract: Investigation was carried out with the aim to characterized some of wood materials obtained in Rivers State of Nigeria. The wood samples considered are Agba, Mahogany and Ako, in which the obtained result demonstrates variation in the ultimate composition as well as relative hydrogen gas produced with the action of anaerobic organisms, especially, for the fermented process. The production of the biohydrogen gas from each of the wood material sampled …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 17, Issue 2, 2026 · pp. 59–64 Read article
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Experimental Analysis and Validation of Cellulose Fibre Insulation Structures Considering Thermal Properties
Abstract: Cellulose fibre insulation structures made from used newspaper can be installed in attics, filling gaps between doors and windows. Many researchers focused on loose-filled cellulose fibre insulation. This study investigates the thermal conductivity, R- Value and thermal transmittance of cellulose fibre insulation manufactured from recycled cellulose materials with densities ranging from 280 to 360 kg / m³ and specimen thicknesses of 10 – 30 mm. A total of 25 structures …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article