the management of sedimentation problems in rivers and reservoirs depend greatly on the sediment yield from the catchment land surface. in this research the effects of biological measures and ranges enclose on suspended load in two sub-catchments of kakhk experimentalwatershed in gonabad has been studied. this catchment contains both control and experimental sub-catchments. these sub-catchments...

Crystallographic analyses of x-ray and neutron diffraction data have provided a definitive structural representation of fHRh[P(O-i-C3H7)3J2j2 and IHRhIP(OCH3)31213. These polynuclear hydrides are generated from square planar H2RhIP(OR)3J2 units by edge (hydrogen atom) sharing and by vertex (hydrogen atom) sharing to form the dimeric and trimeric structures, respectively. The square-planar units...

C 2012 American Chemical Society Exotic Topological Insulator States and Topological Phase Transitions in Sb2Se3 Bi2Se3 Heterostructures Qianfan Zhang, Zhiyong Zhang, Zhiyong Zhu, Udo Schwingenschlögl, and Yi Cui* Department of Material Sciences and Engineering and Stanford Nanofabrication Facility, Stanford University, Stanford, California 94305, United States, PSE Division, KAUST, Thuwal 2395...

clustering technique is one of the most important techniques of data mining and is the branch of multivariate statistical analysis and a method for grouping similar data in to same clusters. with the databases getting bigger, the researchers try to find efficient and effective clustering methods so that they can make fast and real decisions. thus, in this paper, we proposed an improved ant syst...

A NASICON-type LiZr2(PO4)3 (LZP) and Li1.2Al0.2Zr1.8(PO4)3 (LAZP) anode materials are synthesized via a facile method, were characterized by variety of structural techniques, investigated the electrochemical performance for rechargeable battery applications. highly stable rhombohedral phase LAZP is noticed at room temperature, with discharge capacity 909 mAh.g−1, which 1.6 times higher than tha...

Superconductivity has been realized in films of La$_{1-x}$Sr$_x$NiO$_2$. Here we report synthesis and characterization polycrystalline samples La$_{1-x}$Sr$_x$NiO$_3$ La$_{1-x}$Sr$_x$NiO$_2$ ($0\le x\le 0.2$). Magnetization resistivity measurements reveal that are paramagnetic metals exhibit insulating behavior. is not detected bulk The absence superconductivity may be due to the generation hyd...