ZnO-based varistors protect electronic circuits against overvoltage. High temperature from the range of 1150–1300 C is required for proper sintering of such material. Varistor inks with lower firing temperature are needed for application in thick-film and LTCC technology. ZnO-based thick-film composition was prepared and varistors were fabricated on alumina and LTCC substrate. Different topolog...

LTCC (Low Temperature Co-fired Ceramics) being the most advantageous technology towards the multilayer substrates for various applications, demands an extensive study of its raw materials. In the present work, a series of CuxMg1-xNb2O6 (x=0,0.4,0.6,1) has been prepared using sol-gel synthesis route and sintered at a temperature of 900°C to study its applicability for LTCC technology as the firi...

High-density integration in single component used for mobile communication is highly demanded with the miniaturization trend in multi-functional light-weighted mobile communication devices. Embedding passive components into multi-layered ceramic chips is also increasingly needed for high integrity. The need for high strength materials to be used in handheld devices has also increased. To this e...

L-type calcium channels (LTCC) are important functional elements of hippocampal neurons contributing to processes like memory formation and gene expression. Mice lacking the Ca(V)1.2 channel in hippocampal pyramidal cells exhibited defects in spatial memory (Moosmang et al. 2005) and lowered frequency of repetitive action potential (AP) firing (Lacinova et al. 2008). We tested the contribution ...

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The L-type calcium channel (LTCC) is one of the major ion channels that are known to be associated with the electrical remodeling of atrial fibrillation (AF). In AF, there is significant downregulation of the LTCC, but the underlying mechanism for such downregulation is not clear. We have previously reported that microRNA-499 (miR-499) is significantly upregulated in patients with permanent AF ...

The ITER high-frequency (HF) magnetic sensor is currently intended to be a conventional, Mirnovtype, pick-up coil, designed to provide measurements of magnetic instabilities with magnitude as low as |δB|~10G at the position of the sensors, and up to frequencies of at least 300kHz. Previous prototyping of this sensor has indicated that a number of problems exist with this conventional design, wh...

Monitoring organic environmental contaminants is of crucial importance to ensure public health. This requires simple, portable and robust devices to carry out on-site analysis. For this purpose, a low-temperature co-fired ceramics (LTCC) microfluidic potentiometric device (LTCC/μPOT) was developed for the first time for an organic compound: sulfamethoxazole (SMX). Sensory materials relied on ne...

Ca2+ influx through the L-type calcium channel (LTCC) induces Ca2+ release from the sarcoplasmic reticulum (SR) and maintains SR Ca2+ loading. Alterations in LTCC properties, their contribution to the blunted adrenergic responsiveness in failing hearts and their recovery after support with LV assist devices (LVAD) were studied. L-type Ca2+ current (I(Ca,L)) was measured under basal conditions a...

Thick coal seam no. 3, block V, Lupeni mine was mined by longwall top caving (LTCC). After the mining, ground surface underwent continuous subsidence, but since 2008, three sinkholes have appeared on with important dimensions, atypical for geo-mining conditions in this basin. This article is a synthesis of study meant to decipher geo-mechanical phenomenon that led emergence these and highlighti...