Reversible and drastic modulation of the transport properties in vanadium dioxide (VO2) nanowires by electric field-induced hydrogenation at room temperature was demonstrated using the nanogaps separated by humid air in field-effect transistors with planer-type gates (PG-FET). These PG-FETs allowed us to investigate behavior of revealed hydrogen intercalation and diffusion aspects with time and...

A new design and experimental results of a microstripfed ultra-wideband Fermi antenna at millimeter-wave frequencies are presented. By utilizing a new microstrip-to-CPS balun (or transition), which provides wider bandwidth than conventional planar balun, the design of microstrip-fed Fermi antenna is greatly simplified. The proposed Fermi antenna demonstrates ultra-wideband performance for the f...

Inductors are a necessary building block in many circuits, including LNA and oscillators largely used in Receivers and various other systems. Because planer inductors can occupy a large amount of area in integrated-circuit (IC) designs, the search has been on for smaller, tunable inductors suitable for monolithic fabrication In this paper a method, which is to implement an active inductor by CM...

Nonholonomic system is now one of major topics in robotics. In this paper, we discuss the nonlinear behavior of a two-joint planer manipulator with the second joint free for time-periodic inputs. First, we illustrate that when the amplitude remains small, the Poincar e map of the system follows an ellipse-like closed path and it becomes chaotic with large amplitude. We, then, propose a control ...

Der Klang ist ein elementarer Teil städtischen Lebens und Erlebens. Er sinnbehaftet bedeutsam. In der Stadtgestaltung findet er jedoch, von Lärmbekämpfung abgesehen, bislang kaum Berücksichtigung. Ausgehend dieser Feststellung fragt Thomas Kusitzky nach den Konditionen einer bewussten Praxis Stadtklanggestaltung zeigt Ansatzpunkte für deren Etablierung auf. Dabei nicht nur Rolle Entwerfer*innen...

PURPOSE to compare lesion detectability of I-123 MIBG scintigraphy with that of high-dose I-131 MIBG and to evaluate incremental benefit of SPECT/CT over planar image for the detection and localization of the lesions in patients with I-131 MIBG therapy for malignant pheochromocytoma/paraganglioma and neuroblastoma. MATERIALS AND METHODS we retrospectively investigated 16 patients with maligna...