Ammonia is a natural compound, as well as a manufactured compound. In nature, most ammonia probably comes from decomposing animal excreta, with the decay of organic materials from plants, dead animals, and the like also contributing significant amounts. It is also exhaled by animals. Production of fixed nitrogen (NH3) by plants and microorganisms is estimated at 90 to 130 metric tons annually. ...

The relationship between the bacterial communities in anolyte and anode biofilms and the electrochemical properties of microbial fuel cells (MFCs) was investigated when a complex organic waste-decomposing solution was continuously supplied to MFCs as an electron donor. The current density increased gradually and was maintained at approximately 100 to 150 mA m(-2). Polarization curve analyses re...

crabs of intertidal zone of a muddy shore in bandar abbas were studied using monthly examination of goharshad and terminal stations during august 2005 to july 2006. sampling was done by corer and 14 species from 6 families were identified. crabs were from ocypodidae, pinnotheridae, pilumnidae, trapeziidae, leucosiidae and varunidae families. results showed ocypodidae, the most abundant and dive...

In the past few years, many studies have reported on the formula of solder metal alloy materials. This paper discusses the influence of organic materials characters, the decomposing rate of flux in lead-free solder paste and coefficients of thermal expansion (CTE) of halogen-free mold compounds during the on-board reliability test, and the failure mechanism in both 63Sn/37Pb and Sn–3.5Ag–0.5Cu ...

Metal organic frameworks (MOFs) is a research hotspot in the solar fuel production and photo-degradation of pollutants field due to high surface area, rich metal/organic species, large pore volume, adjustability structures compositions. Therefore, this review, we first summarized design factors photocatalytic materials based on MOF from perspective “star” MOF. The modification strategies MOFs-b...

Arbuscular mycorrhizal (AM) fungi are obligate biotrophs that acquire carbon (C) solely from host plants. AM fungi can proliferate hyphae in, and acquire nitrogen (N) from, organic matter. Although they can transfer some of that N to plants, we tested the hypothesis that organic matter is an important N source for the AM fungi themselves. We grew pairs of plants with and without the AM fungus G...

Photocatalytic degradation of toxic organic compound in water, soil and air by semiconductor catalysts such as TiO2 and ZnO have received much attention over the last two decades. However, the low quantum yield, easy agglomeration and difficult post-separation of these inorganic catalysts limit their application for large-scale applications. Metal-organic frameworks (MOFs) are the latest class ...

Photocatalytic degradation of toxic organic compound in water, soil and air by semiconductor catalysts such as TiO2 and ZnO have received much attention over the last two decades. However, the low quantum yield, easy agglomeration and difficult post-separation of these inorganic catalysts limit their application for large-scale applications. Metal-organic frameworks (MOFs) are the latest class ...

photocatalytic degradation of toxic organic compound in water, soil and air by semiconductor catalysts such as tio2 and zno have received much attention over the last two decades. however, the low quantum yield, easy agglomeration and difficult post-separation of these inorganic catalysts limit their application for large-scale applications. metal-organic frameworks (mofs) are the latest class ...