Presents the design, implementation, and performance of Rensselaer's third-generation
adaptive current tomograph, ACT3. This system uses 32 current sources and 32 phase-sensitive …

Electrical impedance tomography (EIT) is an imaging modality that estimates the electrical
properties at the interior of an object from measurements made on its surface. Typically, …

One of the challenges in designing orthogonal frequency-division multiplexing (OFDM)
systems is their inherent sensitivity to any frequency shift in the signal. A frequency offset …

A new measure of Erikson’s final psychosocial stage, Integrity versus Despair, is presented
and validated across two studies. In the first, 97 adults (68 women and 31 men) aged 65 and …

This paper presents a system capable of simultaneous high-power and high-data-rate
transmission through solid metal barriers using ultrasound. By coaxially aligning a pair of …

The conductivity and permittivity of breast tumors are known to differ significantly from those
of normal breast tissues, and electrical impedance tomography (EIT) is being studied as a …

Wireless communication is ineffective for communicating through a solid steel wall due to the
shielding effect of the metal. In some cases, holes can be made in the wall to allow wires to …

The detection of pi /4-shifted-DQPSK modulation using a tangent-type differential detector with
an integrated symbol timing and carrier frequency offset correction algorithm is discussed. …

Acoustic-electric channels have been used in the recent past to send power and data through
thin metallic barriers. Acoustic-electric channels formed along a structure which are highly …

This paper presents a method for two-way ultrasonic communication and power delivery
through thick metallic enclosures without physical penetration. Acousticelectric channels are …