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Book
Current and Evolving Practices in the Quality Control of Cosmetics
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Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Cosmetic products undergo nowadays rigorous Quality Control testing to ensure that they are safe and stable and that their claims are substantiated by scientifically robust data. Quality Control tests used in the pharmaceutical industry can be applicable also for cosmetic formulations. However, claim substantiation testing is unique to cosmetic products. To enable time- and cost-effective quality control testing, assessment methodologies constantly keep evolving. This Special Issue includes manuscripts that explore all stages of Quality Control testing for cosmetic products, i.e., (1) physicochemical stability testing; (2) microbial stability testing; (3) efficacy testing including objective/subjective claim substantiation testing and the evaluation of sensorial properties; (4) toxicological/safety testing with emphasis on current and evolving methodologies that replace animal testing.


Book
Corrosion and Protection of Steels in Marine Environments: State-of-the-Art and Emerging Research Trends
Authors: ---
ISBN: 3036558624 3036558616 Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Marine corrosion is a very ancient topic, as humankind has, since antiquity, struggled with the corrosiveness of seawater to exploit the countless and essential natural resources of the sea. It is also a broad topic because it combines chemical, biological, and mechanical factors. Among the numerous materials used for marine applications, iron-based alloys (i.e., steels) are essential in various industrial domains such as (of course) the naval industry (ships, submarines, etc.), the energy industry (pipelines, offshore platforms, renewable energy devices, etc.), and buildings (seaport structures, bridges, steel reinforcement in concrete, etc.). Marine corrosion is still an issue to this day, and the recent and necessary development of marine renewable energy devices has motivated innovative research. Currently, complete mastery of corrosion issues is a key aspect in the profitability of produced energy. Simultaneously, the requirements for environmentally friendly anticorrosion methods and processes are clearly expressed. Numerous fundamental and recent advances in marine corrosion and protection of steels, including carbon steel, low alloy steel, and stainless steel, can then be noted. This Special Issue is necessary to acknowledge the recent and sudden increase in the understanding of steel corrosion processes in marine environments and the associated optimization of anticorrosion methods. Last but not least, a large part of our cultural heritage lies at the bottom of seas and oceans, and it will definitely be lost if scientific research does not include current and historical concerns as well.


Book
Current and Evolving Practices in the Quality Control of Cosmetics
Author:
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Cosmetic products undergo nowadays rigorous Quality Control testing to ensure that they are safe and stable and that their claims are substantiated by scientifically robust data. Quality Control tests used in the pharmaceutical industry can be applicable also for cosmetic formulations. However, claim substantiation testing is unique to cosmetic products. To enable time- and cost-effective quality control testing, assessment methodologies constantly keep evolving. This Special Issue includes manuscripts that explore all stages of Quality Control testing for cosmetic products, i.e., (1) physicochemical stability testing; (2) microbial stability testing; (3) efficacy testing including objective/subjective claim substantiation testing and the evaluation of sensorial properties; (4) toxicological/safety testing with emphasis on current and evolving methodologies that replace animal testing.

Keywords

Research & information: general --- Chemistry --- Physical chemistry --- safety --- cosmetics --- botanicals --- toxicology --- TTC --- solar elastosis --- collagen type I --- solar radiation --- non-melanoma skin cancers --- photoaging --- tattoos --- permanent makeup --- PMU --- colorants --- pigments --- cosmetic product safety --- non-animal-testing methodologies --- dermal absorption --- skin irritation --- skin sensitization --- genotoxicity --- endocrine disruptors --- active compounds --- assay --- cosmeceutics --- functional cosmetics --- HPLC-UV --- labelling --- retinoids --- tocopherol --- ubiquinone --- β carotene --- stability testing --- stability protocol --- accelerated ageing --- shelf life --- minimally disruptive formulas --- direct to consumer --- retail model --- sensory testing --- refractive index --- critical wavelength --- turbidity --- skin hydration --- creams --- safety --- cosmetics --- botanicals --- toxicology --- TTC --- solar elastosis --- collagen type I --- solar radiation --- non-melanoma skin cancers --- photoaging --- tattoos --- permanent makeup --- PMU --- colorants --- pigments --- cosmetic product safety --- non-animal-testing methodologies --- dermal absorption --- skin irritation --- skin sensitization --- genotoxicity --- endocrine disruptors --- active compounds --- assay --- cosmeceutics --- functional cosmetics --- HPLC-UV --- labelling --- retinoids --- tocopherol --- ubiquinone --- β carotene --- stability testing --- stability protocol --- accelerated ageing --- shelf life --- minimally disruptive formulas --- direct to consumer --- retail model --- sensory testing --- refractive index --- critical wavelength --- turbidity --- skin hydration --- creams


Book
Batteries and Supercapacitors Aging
Authors: ---
ISBN: 303928715X 3039287141 Year: 2020 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Electrochemical energy storage is a key element of systems in a wide range of sectors, such as electro-mobility, portable devices, and renewable energy. The energy storage systems (ESSs) considered here are batteries, supercapacitors, and hybrid components such as lithium-ion capacitors. The durability of ESSs determines the total cost of ownership, the global impacts (lifecycle) on a large portion of these applications and, thus, their viability. Understanding ESS aging is a key to optimizing their design and usability in terms of their intended applications. Knowledge of ESS aging is also essential to improve their dependability (reliability, availability, maintainability, and safety). This Special Issue includes 12 research papers and 1 review article focusing on battery, supercapacitor, and hybrid capacitor aging.


Book
Progress of Fiber-Reinforced Composites : Design and Applications
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Year: 2022 Publisher: Basel MDPI Books

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Fiber-reinforced composite (FRC) materials are widely used in advanced structures and are often applied in order to replace traditional materials such as metal components, especially those used in corrosive environments. They have become essential materials for maintaining and strengthening existing infrastructure due to the fact that they combine low weight and density with high strength, corrosion resistance, and high durability, providing many benefits in performance and durability. Modified fiber-based composites exhibit better mechanical properties, impact resistance, wear resistance, and fire resistance. Therefore, the FRC materials have reached a significant level of applications ranging from aerospace, aviation, and automotive systems to industrial, civil engineering, military, biomedical, marine facilities, and renewable energy. In order to update the field of design and development of composites with the use of organic or inorganic fibers, a Special Issue entitled “Progress of Fiber-Reinforced Composites: Design and Applications” has been introduced. This reprint gathers and reviews the collection of twelve article contributions, with authors from Europe, Asia and America accepted for publication in the aforementioned Special Issue of Applied Sciences.


Book
Progress of Fiber-Reinforced Composites : Design and Applications
Author:
Year: 2022 Publisher: Basel MDPI Books

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Abstract

Fiber-reinforced composite (FRC) materials are widely used in advanced structures and are often applied in order to replace traditional materials such as metal components, especially those used in corrosive environments. They have become essential materials for maintaining and strengthening existing infrastructure due to the fact that they combine low weight and density with high strength, corrosion resistance, and high durability, providing many benefits in performance and durability. Modified fiber-based composites exhibit better mechanical properties, impact resistance, wear resistance, and fire resistance. Therefore, the FRC materials have reached a significant level of applications ranging from aerospace, aviation, and automotive systems to industrial, civil engineering, military, biomedical, marine facilities, and renewable energy. In order to update the field of design and development of composites with the use of organic or inorganic fibers, a Special Issue entitled “Progress of Fiber-Reinforced Composites: Design and Applications” has been introduced. This reprint gathers and reviews the collection of twelve article contributions, with authors from Europe, Asia and America accepted for publication in the aforementioned Special Issue of Applied Sciences.


Book
Progress of Fiber-Reinforced Composites : Design and Applications
Author:
Year: 2022 Publisher: Basel MDPI Books

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Abstract

Fiber-reinforced composite (FRC) materials are widely used in advanced structures and are often applied in order to replace traditional materials such as metal components, especially those used in corrosive environments. They have become essential materials for maintaining and strengthening existing infrastructure due to the fact that they combine low weight and density with high strength, corrosion resistance, and high durability, providing many benefits in performance and durability. Modified fiber-based composites exhibit better mechanical properties, impact resistance, wear resistance, and fire resistance. Therefore, the FRC materials have reached a significant level of applications ranging from aerospace, aviation, and automotive systems to industrial, civil engineering, military, biomedical, marine facilities, and renewable energy. In order to update the field of design and development of composites with the use of organic or inorganic fibers, a Special Issue entitled “Progress of Fiber-Reinforced Composites: Design and Applications” has been introduced. This reprint gathers and reviews the collection of twelve article contributions, with authors from Europe, Asia and America accepted for publication in the aforementioned Special Issue of Applied Sciences.

Keywords

Technology: general issues --- fiber-cement-treated subgrade soil --- mechanical properties --- triaxial test --- brittleness index --- failure angle --- carbon fibers --- lignin --- melt spinning --- carbonization --- Raman --- micro-CT --- banana fiber --- impact response --- compression after impact --- natural fiber --- compression shear properties --- bonded-bolted hybrid --- C/C composites --- high temperature --- hybrid structures --- metallic/composite joints --- plasticity --- damage propagation --- FEM --- crashworthiness --- finite element analysis (FEA) --- composites --- progressive failure analysis (PFA) --- cyclic hygrothermal aging --- high strain rates --- braided composites --- compressive property --- basalt fiber-reinforced polymer (BFRP) --- thickness --- durability --- hygrothermal ageing --- accelerated ageing method --- GFRP composite structures --- slip-critical connection --- stainless-steel cover plates --- surface treatment --- prevailing torque --- anchor --- shear behavior --- concrete edge breakout resistance --- ultimate flexural strength --- energy absorption capacity --- steel fiber --- multi-material design --- thermoplastic composites --- joining --- resistance spot welding --- metal inserts --- tubular composites --- finite element analysis --- computational fluid dynamics --- wireless communication --- signal attenuation --- fiber-cement-treated subgrade soil --- mechanical properties --- triaxial test --- brittleness index --- failure angle --- carbon fibers --- lignin --- melt spinning --- carbonization --- Raman --- micro-CT --- banana fiber --- impact response --- compression after impact --- natural fiber --- compression shear properties --- bonded-bolted hybrid --- C/C composites --- high temperature --- hybrid structures --- metallic/composite joints --- plasticity --- damage propagation --- FEM --- crashworthiness --- finite element analysis (FEA) --- composites --- progressive failure analysis (PFA) --- cyclic hygrothermal aging --- high strain rates --- braided composites --- compressive property --- basalt fiber-reinforced polymer (BFRP) --- thickness --- durability --- hygrothermal ageing --- accelerated ageing method --- GFRP composite structures --- slip-critical connection --- stainless-steel cover plates --- surface treatment --- prevailing torque --- anchor --- shear behavior --- concrete edge breakout resistance --- ultimate flexural strength --- energy absorption capacity --- steel fiber --- multi-material design --- thermoplastic composites --- joining --- resistance spot welding --- metal inserts --- tubular composites --- finite element analysis --- computational fluid dynamics --- wireless communication --- signal attenuation

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