With the deepening and expansion of semiconductor technology research, in order to continuously optimize structure performance detectors, a high-precision hexagonal spiral silicon drift detector (SDD) is proposed this paper. In obtain more accurate ring structure, paper goes beyond first-order formula Taylor for calculating radius ring. Based on formula, second-order further developed derived. ...

The optical voltage sensor FlaSh, made from a fusion of a GFP "reporter domain" and a voltage-gated Shaker K(+) channel "detector domain," has been mutagenically tuned in both the GFP reporter and channel detector domains. This has produced sensors with improved folding at 37 degrees C, enabling use in mammalian preparations, and yielded variants with distinct spectra, kinetics, and voltage dep...

We report electrical measurements of the current-induced spin polarization of the surface current in topological insulator devices where contributions from bulk and surface conduction can be disentangled by electrical gating. The devices use a ferromagnetic tunnel junction (permalloy/Al2O3) as a spin detector on a back-gated (Bi,Sb)2Te3 channel. We observe hysteretic voltage signals as the magn...

A new tympanic thermometer is analyzed and testedexperimentally. An electrically calibrated pyroelectric detector ofspecial configuration is employed to determine a person's bodytemperature. An energy-storage, power-supply-isolated capacitor isused as the electrical heating reference. The new thermometerdesign has an accuracy within ?0.1 degrees C with a 90% confidence and isimmune to ambient t...

A new concept of a high-frequency amplitude detector and demodulator for Giant-Magneto-Impedance (GMI) sensors is presented. This concept combines a half wave rectifier, with outstanding capabilities and high speed, and a feedback approach that ensures the amplitude detection with easily adjustable gain. The developed detector is capable of measuring high-frequency and very low amplitude signal...

In the article an application of the fuzzy testing of hypothesis to the stochastic-signal detection problem is considered when the signal-to-noise ratio approaches zero. We first obtain the general reManuscript received March 13, 1992; revised February 1 1 , 1993. This work was supported by the Science and Engineering Foundation of Korea (KOSEF) under Grant 92 1-0800-002-2. The authors are with...

of ECT Illustrates the Roles of Current Directionality, Polarity, and Electrode Configuration in Seizure Induction Timothy Spellman, Angel V Peterchev and Sarah H Lisanby* Division of Brain Stimulation and Therapeutic Modulation, Department of Psychiatry, Columbia University, New York State Psychiatric Institute, New York, NY, USA Electroconvulsive therapy (ECT) is a mainstay in the treatment o...