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Biblioteca Hispanica : Influence and Mode of Action of the Interna...

By: Joseph Monlau and Sala
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Journal of Mathematical Physics : Nonlinear scattering for a syste...

By: Nakao Hayashi, Pavel I. Naumkin, and Ratno Bagus Edy Wibowo

Description: We consider the initial value problem for systems of nonlinear Klein–Gordon equations with quadratic nonlinearities. We prove the existence of scattering states, namely, the asymptotic stability of small solutions in the neighborhood of the free solutions for small initial data in the weighted Sobolev space H4,3(R3)×H3,3(R3). If nonlinearities satisfy the strong null condition, then the same result is true in two space dimensions for small initial data in H5...

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Review of Scientific Instruments : Universal serial bus powered an...

By: Mark R. Holcomb, Robel Y. Bekele, Eduardo A. Lima, and John P. Wikswo

Description: We have developed a compact, isolated, physiological, constant-current stimulator that is powered and controlled by a universal serial bus (USB) interface. The stimulator is designed to be used in ex vivo cardiac experiments but is suitable for a wide variety of settings. The cost and features compare very favorably with commercial stimulators usually used in research and student laboratories. In addition to being USB powered, other novel aspects of our stim...

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Applied Physics Letters : Enhanced field emission from ZnO nanotet...

By: Chi Li, Kai Hou, Xiaxi Yang, Ke Qu, Wei Lei et al

Description: Field emission properties of screen-printed ZnO nanotetrapods on a carbon nanofiber buffered Ag electrode were studied. The turn-on electric field (at a current of 0.1 μA/cm2) and maximum emission current are 0.6 V/μm and 2.8 mA/cm2 (at a field of 2.2 V/μm), which were significantly improved compared to the control device made of ZnO nanotetrapods on Ag directly without a carbon nanofiber buffer. The improved field emission is due to the better contact (both...

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The Journal of Chemical Physics : Photodissociation dynamics of me...

By: Shih-Huang Lee

Description: We investigated the photodissociation dynamics of methyl formate-d (CH3OC(O)D) at 193.3 nm in a molecular-beam apparatus using undulator radiation as an ionization source. We measured kinetic-energy distributions, spatial angular anisotropies, and branching ratios of all photofragments. Fractions of energy release into product translation were calculated from the kinetic-energy distributions. Four primary dissociation pathways to asymptotes CH3O( 2E)+DCO( 2A...

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