Results 41 to 50 of about 33,427 (263)
Total ozone column above the territory of Serbia and Montenegro [PDF]
Srpski Arhiv za Celokupno Lekarstvo, 2006 Introduction: Atmospheric ozone attenuates ultraviolet radiation reaching the Earth’s surface. Since UV-B radiation is considered the principal factor of causing the skin cancers, cataracts and some immunological disorders, determination of total ozone ...
Letić Milorad
doaj +1 more source
Advanced Engineering Materials, EarlyView.We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang +2 more
wiley +1 more source
Case Studies in Chemical and Environmental EngineeringPolylactic acid (PLA) is a linear aliphatic polyester thermoplastic made from renewable sources such as sugar beet and cornstarch. Methods of preparation of polylactic acid are biological and chemical.
Yathrib Ajaj +9 more
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Synthesis and Characterization of Titania-Rice Husk Silica Composites as Photocatalyst
Indonesian Journal of Chemistry, 2015 This article describes the synthesis of titania-silica composites by a sol-gel method using a mixture of silica of rice husk and titanium butoxide sols.
Posman Manurung +3 more
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Additive Manufacturing of Alumina‐Reinforced Elastomers
Advanced Engineering Materials, EarlyView.Vat‐photopolymerized elastomers reinforced with platelet‐shaped alumina exhibited preferential orientation, reduced porosity, and significantly enhanced mechanical performance. A 3 wt% platelet loading increased tensile strength from 12.4 to 45.7 MPa, highlighting the critical role of filler morphology in elastomeric VPP composites.
Majid Barzegar Keyvani +6 more
wiley +1 more source
A Comparison of Ultraviolet Transmission through Soft Contact Lenses Available in Iranian Market
Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Qum, 2014 Background and Objectives: Long-time erexposure to ultraviolet radiations can lead to various skin and ocular diseases. UV-blocking contact lenses due to their properties against ultraviolet radiations can protect eyes. The present study aimed to compare
Mohadeseh Mohammadinia +3 more
doaj
Advanced Engineering Materials, EarlyView.Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali +5 more
wiley +1 more source
Clinicopathological profile and management of 161 cases of actinic cheilitis [PDF]
Anais Brasileiros de Dermatologia, 2015 BACKGROUND:Actinic cheilitis (AC) is a potentially malignant disorder of the lip caused by chronic exposure to ultraviolet radiation from the sun.OBJECTIVES:To evaluate the clinical, demographic, morphological and therapeutic management in AC cases data ...
Maria Luiza Diniz de Sousa Lopes +4 more
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Laser‐Induced Graphene from Waste Almond Shells
Advanced Functional Materials, EarlyView.Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova +9 more
wiley +1 more source
Ultraviolet index: a light in atopic dermatitis and vitamin D research? [PDF]
Anais Brasileiros de Dermatologia, 2016 BACKGROUND: The role played by vitamin D in atopic dermatitis is controversial and has been the focus of many studies. The ultraviolet index has not been considered in this type of research.
Kleyton de Carvalho Mesquita +2 more
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