We studied the electron irradiation of crystalline and amorphous deuterated water ices at 12 K. The experiments show that molecular deuterium (D2), molecular oxygen (O2), and Hydrogen peroxide (D2O2) were produced inside the irradiated ice samples. A quantitative comparison of crystalline and amorphous ice samples showed that the production rates of D2, O2 and D2O2 in amorphous ices are systema...

We report the synthesis of amorphous carbon nanotubes/silver (αCNTs/Ag) nanohybrids via simple chemical route without additional reactant and surfactant at low temperature. Field emission scanning microscope (FESEM) and transmission electron microscope (TEM) confirmed formation of CNTs. X-ray diffraction (XRD) pattern confirmed the amorphous phase of carbon and the formation of Ag nanoparticles...

Monte Carlo computer simulations of ice VII and ice VIII phases have been undertaken using the four-point transferable intermolecular potential model of water. By following thermodynamic paths similar to those used experimentally, ice is decompressed resulting in an amorphous phase. These phases are compared to the high density amorphous phase formed upon compression of ice Ih and are found to ...

A method is demonstrated for generating compact, broadband and multi-band antennas using ellipses to create new amorphous shapes with greater bandwidth and less return loss that previously demonstrated. The genetic algorithm is used to optimize the design. Four example designs are given including amorphous patches and amorphous monopoles. FDTD is used to simulate the designs allowing the user t...

A photoconductive effect is observed in tetrahedral amorphous carbon (ta-C) or amorphous diamond films with a high proportion of sp3 bonding and a structure analogous to amorphous silicon. The spectral response is shown to peak at around 750400 nm and extend into the near UV region. The maximum photoresponse coincides wit.h the optical absorption edge. The quantum efficiency of 300 nm thick fil...

A new device called “Solant” (for SOLar cell – ANTenna) is presented in this paper. It is a combination of thin-film amorphous silicon solar cells and flat printed antennas. A proton irradiation campaign has also been carried out on a series of n-i-p amorphous and p-i-n micromorph [microcrystalline (μc-Si:H) and amorphous (a-Si:H)] silicon tandem solar cells. The effect of thermal annealing on ...

in this study, nickel-phosphorus coating was prepared by electrodeposition technique on the 304 stainless steel substrate. the effects of current density, phosphorous acid concentration, time and ph on the phosphorous content was investigated using taguchi method. a uniform amorphous-nanocrystalline structure (ni-12%p) was obtained. sem, eds, tem and xrd were used in order to study the surface ...

the glass transition temperature (tg) and the melting temperature (tm) of gelatin at water contents between 7 and 14% were measured using differential scanning calorimetry.  the plasticisation of the polymer by water led to a decrease in tg and tm. the tg of partially crystalline gelatin was higher than that of the amorphous one obtained by quenching from the melt. the enthalpy relaxation occur...

Co-crystals and co-amorphous systems are two strategies to improve the physical properties of an active pharmaceutical ingredient and, thus, have recently gained considerable interest both in academia and the pharmaceutical industry. In this study, the behavior of the recently identified sodium naproxen-lactose-tetrahydrate co-crystal and the co-amorphous mixture of sodium, naproxen, and lactos...