In this paper, two different techniques for the determination of the rms value of sinusoidal AC voltage at the range of 2V are practically compared: non-thermoelectric technique (via the direct measurement using a precise high sensitive digital voltmeter, and the comparison method using a precise AC voltage calibrator) and thermoelectric technique (via the null thermoelectric technique, and the...

An analytical and experimental study of multi-port RF power feeding in a four rod-type radio frequency quadrupole (RFQ) has been discussed. First, we have derived generalized relations for multi-coupler based on S-parameters n balanced couplers. Using simulation measurements prototype, the optimum position orientation two couplers an 80 MHz extended vane rod type RFQ determined. A low test carr...

Nasal potential difference (PD) measurement has been used as a diagnostic test for cystic fibrosis (CF). It has been shown that large differences in reproducibility of nasal PD measurement can exist between different study sites. These differences reduce the validity of studies. In our study we tried to measure nasal PD values for a group of Turkish CF patients by using a computer based data ac...

Environ. Entomol. 13: 863-867 (1984) ABSTRACT' An electronic integrated-circuit thermometer with multiple probes (3 by 4 by 5 mm each) is described and was used to measure temperatures at the surface and at several depths in the forest litter of Norway spruce, Picea abies (L.) Karst., throughout 3 days in spring. The temperatures at the various depths were recorded on a single-pen recorder/volt...

Diverse configurations of needle-type electrodes are commonly used to generate DC or AC corona discharges in various industrial applications. Previous studies confirm that the amount charges generated by discharge is controlled several factors such as level applied voltage, ambient conditions, well geometry electrode system. This paper aimed evaluate distribution uniformity multiple-row and dep...

© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 5320 wileyonlinelibrary.com integrating them in devices permits the applications of devices without external power source or battery. Several examples of various materials and device confi gurations appear in the literature. An example of piezoelectric materials that has been constantly studied is ZnO, mostly in nanowire (NW) form. [ 2–4 ] A nan...

Self-powered sensors are gaining a lot of attention in recent years due to their possible application the Internet Things, medical implants and wireless wearable devices. Human breath detection has applications diagnostics, therapy metabolism monitoring. One approach for monitoring is detecting humidity exhaled air. Here, we present an extremely sensitive, self-powered sensor As power source, u...

Rapid technological advances are affecting the greater use of electrical energy. One devices that can generate energy is a generator. Testing characteristics generator required drive motor to rotate shaft. This research aims create three-phase input power measurement system for driving motor. The method measuring by current and voltage each phase. obtained from multiplication between voltage. c...

The aim of this research is to identify pre-service science teachers’ experiences during the simple electrical circuit establishment process, points they were challenged with, and developed strategies used against challenges experimenting with process. In study, embedded single case which one qualitative methods, was used. two weeks tertiary level Physics Laboratory-2 course, each lasted 1, 5 h...