Diamond nanoparticles so-called nanodiamonds (NDs) have recently experienced raising scientific interest due to interesting optical and electronic properties, non-toxicity, biocompatibility, large surface area. Another significant feature of NDs is the versatility chemistry, where various functional groups can be attached. This provides an excellent platform for adjusting properties functions m...

The availability of collisional rate coefficients is a prerequisite for an accurate interpretation of astrophysical observations, since the observed media often harbour densities where molecules are populated under non-local thermodynamic equilibrium conditions. In the current study, we present calculations of rate coefficients suitable to describe the various spin isomers ofmultiply deuterated...

1 Photochemistry Department, National Research Centre, Dokki, Giza, Egypt. 2 Chemistry Department, College of Science, Aljouf University, Sakaka, Al-Jouf, Kingdom of Saudi Arabia. 3 Applied Organic Chemistry Department, National Research Centre, Dokki, Cairo, Egypt. 4 Hormone Department, National Research Centre, Dokki, Cairo, Egypt. 5 Department of Pharmaceutical Chemistry, National Research C...

The effects of Nd2Fe14B grain size and Nd coating on the coercivity in sputter-deposited Nd-Fe-B/Nd thin films have been investigated in order to gain an insight into the coercivity mechanism of Nd-Fe-B magnets. Highly textured Nd2Fe14B particles were grown successfully on the MgO(100) single-crystal substrate with the Mo underlayer. As the Nd-Fe-B layer thickness t NFB was decreased from 70 to...

Over the last two decades, urban geometry has been shown to be a key determinant of microclimatic conditions in areas. This study uses Ladybug-tools, plugins Grasshopper3D optimise building heights, street widths and orientation maximise outdoor thermal comfort, represented by diurnal average Universal Thermal Climate Index (UTCI). In hot-arid climate Cairo, Egypt, optimised parameters symmetri...

In the crystal structure of the title mixed-ligand coordination polymer, [Nd(2)(C(12)H(6)N(2)O(4))(3)(C(10)H(8)N(2))(2)(H(2)O)(2)](n), the Nd(III) ion is in an octa-hedral coordination environment formed by one water mol-ecule, one chelating 2,2'-bipyridine ligand, and five monodentate carboxyl-ate groups. The local coordination polyhedron around the Nd(III) ion is a bicapped trigonal prism. Tw...

The reaction of neodymium nitrate and 4-tert-butyl-benzoic acid (tBBAH) in aqueous solution yielded the dinuclear title complex, [Nd(2)(C(11)H(13)O(2))(6)(C(11)H(14)O(2))(2)(H(2)O)(2)], which has non-crystallographic C(i) symmetry. The two Nd(III) ions are linked by two bridging and two bridging-chelating tBBA ligands with an Nd⋯Nd separation of 4.0624 (5) Å. Moreover, each Nd(III) ion is coord...

Video transcoding comprises the necessary operations for the conversion of a compressed video stream from one syntax to another one for inter-network communications, without the need of any further decoding and re-encoding process. The two most recent and popular video coders are H.263 and MPEG-4. As well as some similarities, there are a number of differences between MPEG-4 and the H.263 bitst...