Materials Literature
文献浏览
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Characterization of the Open Porosity of Brake Pads. II. Correlations Between Volume Porosity and Surface Area Porosity. Structural Modeling.
Time-Dependent Behaviour and Constitutive Equation for Thermoset Matrix-Mineral Filler Composites
TABLE OF CONTENTS
Infomación bibliográfica
Non-Isothermal Crystallisation of GF/PP Composites: Effect of Sizing, Fibre Volume and Modified PP
A Simple Evaluation of the Fracture Toughness of Discontinuous Fiber Reinforced Composites
Characterization and conservation of the stone used in the Cathedral of Granada, Spain
This paper summarizes a study carried out on the Granada Cathedral which includes studies of indicators, factors and mechanisms of deterioration. A complete chemical and physical characterization of altered and unaltered material from the quarries and the building has been made. Eight commercial treatment products hav…
Biological colonization and deterioration of mortars by phototrophic organisms
In the last years, considerable studies on the effect of phototrophic organisms (cyanobacteria, algae, lichens, mosses and vascular plants) on cultural heritage properties have been carried out. The data indicate that these organisms, instead of having an irrelevant role, actively participate in the deteriorating proc…
Monuments deterioration evaluation, using digited images. A methodology
In this work a methodology is proposed for data processing, integrating the techniques of digital images processing and the analytical capacity of graphical referencing systems and relational databases, in relation with the monuments. The images are generated using the digital image processing and they are included in…
Characterization of the Open Porosity of Brake Pads. III. Analysis of the Effects of a Thermal Treatment on Porosity.
La adherencia en los morteros de albañilería
The work presents a study carried out to determine the bond strength reached by bricklaying mortars at 28 days. 23 different dosages were prepared using 4 cement types, 2 sand types and 4 aggregate types. The results prove the feasibility of using the mentioned method to determine bond strength. The values at 28 days…
Characterization of the Open Porosity of Brake Pads. I. Development of 2-D Porosity Image Analysis Techniques
Congresos, Seminarios y Cursos. Noticias
On the question of silk in pre-Han Eurasia
When was silk first brought across the steppe from far China towards the European world? There is silk from the Middle Bronze Age of Uzbekistan, in Scythian burials of Siberia and among the Hallstatt grave-goods of western Europe. Teasing out the story of silk depends on identifying the textile, and distinguishing its…
Chemical Preparation of Manganese Dioxide/Polypyrrole Composites and Their Use as Cathode Active Materials for Rechargeable Lithium Batteries
Chemical preparation of composite powders of polypyrrole and either , , or spinel has been successfully achieved by injecting liquid pyrrole into an acidic medium containing suspended manganese dioxide powder as an oxidizing agent. The content of manganese dioxide in the composites increased with increasing amount of…
The reaction of ammonia with nitrogen dioxide in a flow reactor: Implications for the NH2 + NO2 reaction
Abstract The NH 3 /NO 2 system has been investigated experimentally in an isothermal flow reactor in the temperature range 850–1350 K. The experimental data were interpreted in terms of a detailed reaction mechanism. The flow reactor results, supported by a theoretical analysis of the NH 2 NO 2 complex, suggest that…
Morphology of Polymer-Stabilized Liquid Crystals
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMorphology of Polymer-Stabilized Liquid CrystalsC. V. Rajaram, S. D. Hudson, and L. C. ChienCite this: Chem. Mater. 1995, 7, 12, 2300–2308Publication Date (Print):December 1, 1995Publication History Published online1 May 2002Published inissue 1 December 1995https://pubs.acs.…
Stability of Liquid Crystalline Macroemulsions
The topological stability of emulsions of liquid crystal in water (glycerol) matrices is demonstrated for a wide range of materials and concentrations. Coalescence is prevented by an energy barrier for a topological ring defect formation in a neck between the two merging droplets. There is a characteristic size of emu…
From Porphyrin Isomers to Octapyrrolic “Figure Eight” Macrocycles
Cyclooctapyrroles such as 1–3 tend to form during the condensation of dipyrrolic units if cyclization to cyclotetrapyrroles is hindered for conformational reasons. These macrocycles are chiral and might afford interesting complexes with metal ions. Their most intriguing feature is their unusual figure-eight conformati…