A Modified Bipolar Translinear Cell with Improved Linear Range and Its Applications

This paper presents a technique to extend the linear input voltage range of a sinh mixed translinear cell proposed by Fabre [1]. This technique extends the linear operation range of the circuit by inserting common-anode-connected pairs into the mixed translinear cell. Then the relationship between the output current and the input voltage is developed to be linear. The transconductance gain can be adjusted electronically while keeping its linearity. The performance of the proposed circuit is verified by mathematical analysis and by SPICE simulations. Finally, applications of the proposed cell in a floating resistor and a CCCII for designing an instrumentation amplifier are presented

Development of high energy density primary batteries Fourth quarterly report, 22 Mar. - 21 Jun. 1966

High energy density primary batteries for space flight applications - electrolyte systems, cell systems, and positive electrode constructio

Development of high energy density primary batteries First quarterly report, 22 Jun. - 21 Oct. 1965

Electrode and electrolyte studies for lithium- copper fluoride batterie

Development of high energy density primary batteries Final report, 22 Jun. 1965 - 21 Mar. 1967

Spacecraft primary battery containing copper fluoride couple with lithium-chlorine tetraoxide propylene carbonate electrolyte

Development of high energy density primary batteries Second quarterly report, 22 Sep. - 21 Dec. 1965

Copper fluoride-lithium high energy density battery developmen

Electronic Scattering Effects in Europium-Based Iron Pnictides

In a comprehensive study, we investigate the electronic scattering effects in EuFe$_{2}$(As$_{1-x}$P$_{x}$)$_{2}$ by using Fourier-transform infrared spectroscopy. In spite of the fact that Eu$^{2+}$ local moments order around $T_\text{Eu} \approx 20$\,K, the overall optical response is strikingly similar to the one of the well-known Ba-122 pnictides. The main difference lies within the suppression of the lower spin-density-wave gap feature. By analysing our spectra with a multi-component model, we find that the high-energy feature around 0.7\,eV -- often associated with Hund's rule coupling -- is highly sensitive to the spin-density-wave ordering, this further confirms its direct relationship to the dynamics of itinerant carriers. The same model is also used to investigate the in-plane anisotropy of magnetically detwinned EuFe$_{2}$As$_{2}$ in the antiferromagnetically ordered state, yielding a higher Drude weight and lower scattering rate along the crystallographic $a$-axis. Finally, we analyse the development of the room temperature spectra with isovalent phosphor substitution and highlight changes in the scattering rate of hole-like carriers induced by a Lifshitz transition

Эколого-геохимическая оценка территории города Владивосток по данным изучения листьев тополя (Приморский край)

Работа посвящена изучению элементного состава листьев тополя, как биогеохимического индикатора состояния окружающей среды урбанизированных территорий. Исследование проведено на примере города Владивосток.The work is devoted to the study of the elemental composition of the leaves of poplar, as a biogeochemical indicator of the state of the environment of urbanized territories. The study was conducted on the example of Vladivostok

Topological properties of superconducting junctions

Motivated by recent developments in the field of one-dimensional topological superconductors, we investigate the topological properties of s-matrix of generic superconducting junctions where dimension should not play any role. We argue that for a finite junction the s-matrix is always topologically trivial. We resolve an apparent contradiction with the previous results by taking into account the low-energy resonant poles of s-matrix. Thus no common topological transition occur in a finite junction. We reveal a transition of a different kind that concerns the configuration of the resonant poles