Saline waters treatment has become increasingly important for drinking water supply in a greater part of the world. However, some serious limitations had recently been discovered during water treatment, among them the boron problem seems to have a critical meaning. According to the WHO regulations (2011), the boron concentration should be reduced to less than 2.4 mg/L for drinking water. The pu...

Using the minima hopping global geometry optimization method on the density functional potential energy surface we show that the energy landscape of boron clusters is glasslike. Larger boron clusters have many structures which are lower in energy than the cages. This is in contrast to carbon and boron nitride systems which can be clearly identified as structure seekers. The differences in the p...

The geometry, electronic, and structural properties of an unusually stable boron cage made of 80 boron atoms are studied, using ab initio calculations. The shape of this cluster is very similar to that of the well-known C60 fullerene, but in the B80 case, there is an additional atom in the center of each hexagon. The resulting cage preserves the Ih symmetry, has a relatively large highest occup...

Abstract This work presents a comprehensive study consisting of two aspects: numerical analytical aspect and laboratory experimental aspect. The was three-dimensional finite element analysis performance corroded horizontally cracked aluminium plates, which were repaired by composite patching. effect the types on variance damaged area adhesive (FM-73) their efficiency stress intensity factor stu...

Constant radial diffusion coefficients of boron through southern pine (Pinus spp.) were determined from the total amount of boron diffusing through wood and the amount of boron remaining o n the wood surface after different diffusion periods. The concentration profiles of the treated samples were measured using a slicing technique. Another coefficient representing the effect unexplained by the ...

this study was carried out in order to determine the effects of boron and cold stress on pollen germination of almond hybrids in vitro culture, two different media including the absence and presence of boron (0 mg/l, and 100 mg/l) in 10% sucrose and 1% agar medium at 24°c in dark conditions. the results showed that different treatments had a significant effect on the germination percentage. the...

One of the radiotherapy has boron neutron capture therapy (BNCT). They may make it easier to kill tumor cells with BNCT. In BNCT, it is important for boron agents, which have high selectively and high accumulation, to be introduced into tumor cells. To date, the main boron compounds used by the clinical study are sodium mercaptododecaborate (BSH) and pboronophenylalanine (BPA). But, there are n...

Aim: The element boron, discovered in 1808, has many properties and can be used glass, detergent, pharmaceutical, chemical industry, fire retardant production, agriculture, ceramic metallurgy, energy storage, water treatment, pigment dryer, car interior airbags, hydraulic brake. It draws attention with its diversity of usage areas. During the production processing boron mineral, waste product i...

In a recent letter to Nature Young et al . reported ferromagnetism in Ca1−xLaxB6 — a material with no partially filled dor f -orbitals. Three features are noteworthy, the narrow concentration range of doping (0 ∼ x < ∼ 0.01), the small magnetic moment (∼ 0.07μB/La), and the high Curie temperature (TC ∼ 600 K). The parent compound CaB6 is a poor conductor which shows a small overlap EG (< 0) bet...

Boron neutron capture therapy (BNCT) is a radiotherapy that has mainly been used to treat malignant brain tumours, melanomas, and head and neck cancer. In BNCT, the patient receives an intravenous infusion of a B carrier, which accumulates in the tumour area. The tumour is irradiated with epithermal or thermal neutrons, which result in a boron neutron capture reaction B(n,α)Li. This generates h...