Results 61 to 70 of about 1,100,062 (324)
Journal of Architecture, Art & Humanistic Science, 2020 Historical limestone surface and historical building may be exposed to many changes due to the exposure to many mechanical, Physiochemical deterioration factors Which represents a threat to our cultural heritage so the aim of this study was to preserve ...
Heba Osman, Ahmed Shoaib
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Method for producing oxygen from lunar materials [PDF]
, 1993 This invention is related to producing oxygen from lunar or Martian materials, particularly from lunar ilmenite in situ. The process includes producing a slurry of the minerals and hot sulfuric acid, the acid and minerals reacting to form sulfates of the
Sullivan, Thomas A.
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Fabrication, Properties, and Applications of Scaffolds for Bone Tissue Regeneration
Advanced Materials Technologies, EarlyView.This review explores cutting‐edge biomaterials and fabrication techniques for scaffolds in bone tissue regeneration. It conducts a critical comparison of various strategies, meticulously analyzes the key contradictions in the field, and outlines an integrated development path spanning from biomaterial selection to clinical application, while ...
Shangsi Chen, Min Wang
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Cometary micrometeorites and input of prebiotic compounds
BIO Web of Conferences, 2014 The apparition of life on the early Earth was probably favored by inputs of extraterrestrial matter brought by carbonaceous chondrite-like objects or cometary material. Interplanetary dust collected nowadays on Earth is related to carbonaceous chondrites
Engrand C.
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Olivine weathering in soil, and its effects on growth and nutrient uptake in Ryegrass (Lolium perenne L.): a pot experiment. [PDF]
PLoS ONE, 2012 Mineral carbonation of basic silicate minerals regulates atmospheric CO(2) on geological time scales by locking up carbon. Mining and spreading onto the earth's surface of fast-weathering silicates, such as olivine, has been proposed to speed up this ...
Hein F M ten Berge +5 more
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Biodegradable Adhesive Systems for Bio‐Integrated Applications
Advanced Science, EarlyView.Biodegradable adhesives provide temporary yet reliable adhesion while degrading into safe, non‐toxic by‐products under physiological or environmental conditions. This review summarizes recent developments in physical and chemical adhesion mechanisms—including hydrogen bonding, catechol chemistry, amine‐carboxyl coupling, and emerging diazirine and urea
Won Bae Han +6 more
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Solubility and structure of calcium silicate hydrate [PDF]
Cement and Concrete Research, 2004 Abstract The poorly crystalline calcium silicate hydrate (C-S-H) phases that form near room temperature, which include the technically important C-S-H gel phase formed during the hydration of Portland cement, have a broad similarity to the crystalline minerals tobermorite and jennite, but are characterized by extensive atomic imperfections and ...
Jeffrey J. Chen +3 more
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Contamination of surface waters by mining wastes in the Milluni Valley (Cordillera Real, Bolivia): Mineralogical and hydrological influences [PDF]
, 2008 This study is one of very few dealing with mining waste contamination in high altitude, tropical-latitude areas exploited during the last century. Geochemical, mineralogical and hydrological characterizations of potentially harmful elements (PHEs) in ...
Isaure, Marie-Pierre +3 more
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Ionic–Bionic Interfaces: Advancing Iontronic Strategies for Bioelectronic Sensing and Therapy
Advanced Science, EarlyView.Ionic–bionic interfaces for bioelectronics leverage ions as multifunctional mediators that combine mechanical compliance, ionic and electronic functionalities, and therapeutic effects. These systems offer real‐time biosignal transduction, effective wound dressing, responsive drug delivery, and seamless interaction between soft tissues and electronic ...
Yun Goo Ro +6 more
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Distribution and forms of manganese in vertisols of Serbia [PDF]
Journal of the Serbian Chemical Society, 2011 Soil samples taken from the Ap horizont of arable land and meadows at ten different localities were analyzed for different forms of manganese, including total (HF), pseudo-total (HNO3), 0.1 M HCl-extractable and DTPA-extractable.
JELENA Ž. MILIVOJEVIĆ +7 more
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