Water conflict is a term describing a conflict between countries, states, or groups over the rights to access water resources. The United Nations recognizes that water disputes result from opposing interests of water users, public or private. A wide range of water conflicts appear throughout history, though rarely are traditional wars waged over water alone. Instead, water has historically been a source of tension and a factor in conflicts that start for other reasons. However, water conflicts arise for several reasons, including territorial disputes, a fight for resources, and strategic...

Microscale Chemistry (often referred to as small-scale chemistry, in German: Chemie im Mikromaßstab) is an analytical method and also a teaching method widely used at school and at university levels, working with small quantities of chemical substances. While much of traditional chemistry teaching centers on multi-gramme preparations, milligrams of substances are sufficient for micro scale chemistry. In universities, modern and expensive lab glassware is used and modern methods for detection and characterization of the produced substances are very common. In schools and in many countries of...

Graphen hat sich aufgrund seiner einzigartigen Kombination außergewöhnlicher Eigenschaften als eines der vielversprechendsten Nanomaterialien herauskristallisiert: Es ist nicht nur das dünnste, sondern auch eines der stärksten Materialien; es leitet Wärme besser als alle anderen Materialien; es ist ein hervorragender Stromleiter; es ist optisch transparent und dennoch so dicht, dass es für Gase undurchlässig ist - nicht einmal Helium, das kleinste Gasatom, kann es durchdringen.Graphen ist die Bezeichnung für eine einlagige Folie aus Kohlenstoffatomen, die in einem sich wiederholenden...

There are various types of renewable energy sources used globally including, bioenergy, solar energy, hydropower, and geothermal energy, to name a few. Globally, China and Brazil are the top two countries in terms of generating the most energy through hydropower. Geothermal energy has been on the rise as well. Data shows an increase in geothermal energy capacity globally in the last 10 years. Likewise, there has been a dramatic increase in the capacity of global solar energy in recent years.Having about 800 citations, all of which are well and completely addressed at the end of the book,...

Le graphène s'est imposé comme l'un des nanomatériaux les plus prometteurs en raison de la combinaison unique de propriétés exceptionnelles qu'il présente : il est non seulement le matériau le plus fin, mais aussi l'un des plus solides ; il conduit la chaleur mieux que tous les autres matériaux ; il est un excellent conducteur d'électricité; il est optiquement transparent, tout en étant si dense qu'il est imperméable aux gaz - même l'hélium, le plus petit atome de gaz, ne peut le traverser.Le graphène est le nom d'une feuille monocouche d'atomes de carbone liés entre eux selon...